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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.regionserver.wal;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.regionserver.wal.WALActionsListener.RollRequestReason.ERROR;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.regionserver.wal.WALActionsListener.RollRequestReason.LOW_REPLICATION;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.regionserver.wal.WALActionsListener.RollRequestReason.SLOW_SYNC;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.apache.hadoop.hbase.wal.AbstractFSWALProvider.WAL_FILE_NAME_DELIMITER;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.apache.hbase.thirdparty.com.google.common.base.Preconditions.checkArgument;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import static org.apache.hbase.thirdparty.com.google.common.base.Preconditions.checkNotNull;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import com.lmax.disruptor.RingBuffer;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.io.FileNotFoundException;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.io.IOException;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.io.InterruptedIOException;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.lang.management.MemoryType;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.net.URLEncoder;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.ArrayList;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.Arrays;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.Comparator;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.util.List;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import java.util.Map;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import java.util.OptionalLong;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import java.util.Set;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import java.util.concurrent.ConcurrentNavigableMap;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import java.util.concurrent.ConcurrentSkipListMap;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import java.util.concurrent.ExecutionException;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import java.util.concurrent.TimeUnit;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.commons.lang3.mutable.MutableLong;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.conf.Configuration;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.fs.FileStatus;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.fs.FileSystem;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.fs.Path;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.fs.PathFilter;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.Cell;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.HConstants;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.io.util.MemorySizeUtil;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.ipc.RpcServer;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.ipc.ServerCall;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.log.HBaseMarkers;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.regionserver.HRegion;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.trace.TraceUtil;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.wal.WALKeyImpl;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.wal.WALPrettyPrinter;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.wal.WALProvider.WriterBase;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.wal.WALSplitter;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.81"></a> |
| <span class="sourceLineNo">082</span>import org.apache.hadoop.util.StringUtils;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span>import org.apache.htrace.core.TraceScope;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span>import org.slf4j.Logger;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span>import org.slf4j.LoggerFactory;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span>/**<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * Implementation of {@link WAL} to go against {@link FileSystem}; i.e. keep WALs in HDFS. Only one<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * WAL is ever being written at a time. When a WAL hits a configured maximum size, it is rolled.<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * This is done internal to the implementation.<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * <p><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * As data is flushed from the MemStore to other on-disk structures (files sorted by key, hfiles), a<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * WAL becomes obsolete. We can let go of all the log edits/entries for a given HRegion-sequence id.<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * A bunch of work in the below is done keeping account of these region sequence ids -- what is<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * flushed out to hfiles, and what is yet in WAL and in memory only.<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * <p><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * It is only practical to delete entire files. Thus, we delete an entire on-disk file<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * <code>F</code> when all of the edits in <code>F</code> have a log-sequence-id that's older<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * (smaller) than the most-recent flush.<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * <p><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * To read an WAL, call<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * {@link WALFactory#createReader(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.Path)}. *<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * <h2>Failure Semantic</h2> If an exception on append or sync, roll the WAL because the current WAL<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * is now a lame duck; any more appends or syncs will fail also with the same original exception. If<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * we have made successful appends to the WAL and we then are unable to sync them, our current<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * semantic is to return error to the client that the appends failed but also to abort the current<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * context, usually the hosting server. We need to replay the WALs. <br><a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * TODO: Change this semantic. A roll of WAL may be sufficient as long as we have flagged client<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * that the append failed. <br><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * TODO: replication may pick up these last edits though they have been marked as failed append<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * (Need to keep our own file lengths, not rely on HDFS).<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> */<a name="line.115"></a> |
| <span class="sourceLineNo">116</span>@InterfaceAudience.Private<a name="line.116"></a> |
| <span class="sourceLineNo">117</span>public abstract class AbstractFSWAL<W extends WriterBase> implements WAL {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> private static final Logger LOG = LoggerFactory.getLogger(AbstractFSWAL.class);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> private static final String SURVIVED_TOO_LONG_SEC_KEY = "hbase.regionserver.wal.too.old.sec";<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> private static final int SURVIVED_TOO_LONG_SEC_DEFAULT = 900;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> /** Don't log blocking regions more frequently than this. */<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> private static final long SURVIVED_TOO_LONG_LOG_INTERVAL_NS = TimeUnit.MINUTES.toNanos(5);<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> protected static final String SLOW_SYNC_TIME_MS ="hbase.regionserver.wal.slowsync.ms";<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> protected static final int DEFAULT_SLOW_SYNC_TIME_MS = 100; // in ms<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> protected static final String ROLL_ON_SYNC_TIME_MS = "hbase.regionserver.wal.roll.on.sync.ms";<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> protected static final int DEFAULT_ROLL_ON_SYNC_TIME_MS = 10000; // in ms<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> protected static final String SLOW_SYNC_ROLL_THRESHOLD =<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> "hbase.regionserver.wal.slowsync.roll.threshold";<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> protected static final int DEFAULT_SLOW_SYNC_ROLL_THRESHOLD = 100; // 100 slow sync warnings<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> protected static final String SLOW_SYNC_ROLL_INTERVAL_MS =<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> "hbase.regionserver.wal.slowsync.roll.interval.ms";<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> protected static final int DEFAULT_SLOW_SYNC_ROLL_INTERVAL_MS = 60 * 1000; // in ms, 1 minute<a name="line.134"></a> |
| <span class="sourceLineNo">135</span><a name="line.135"></a> |
| <span class="sourceLineNo">136</span> protected static final String WAL_SYNC_TIMEOUT_MS = "hbase.regionserver.wal.sync.timeout";<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> protected static final int DEFAULT_WAL_SYNC_TIMEOUT_MS = 5 * 60 * 1000; // in ms, 5min<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> public static final String WAL_ROLL_MULTIPLIER = "hbase.regionserver.logroll.multiplier";<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> public static final String MAX_LOGS = "hbase.regionserver.maxlogs";<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> public static final String RING_BUFFER_SLOT_COUNT =<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> "hbase.regionserver.wal.disruptor.event.count";<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> /**<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> * file system instance<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> */<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> protected final FileSystem fs;<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> /**<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> * WAL directory, where all WAL files would be placed.<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> */<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> protected final Path walDir;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span><a name="line.155"></a> |
| <span class="sourceLineNo">156</span> /**<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> * dir path where old logs are kept.<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> */<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> protected final Path walArchiveDir;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> /**<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * Matches just those wal files that belong to this wal instance.<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> */<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> protected final PathFilter ourFiles;<a name="line.164"></a> |
| <span class="sourceLineNo">165</span><a name="line.165"></a> |
| <span class="sourceLineNo">166</span> /**<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> * Prefix of a WAL file, usually the region server name it is hosted on.<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> */<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> protected final String walFilePrefix;<a name="line.169"></a> |
| <span class="sourceLineNo">170</span><a name="line.170"></a> |
| <span class="sourceLineNo">171</span> /**<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> * Suffix included on generated wal file names<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> */<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> protected final String walFileSuffix;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span><a name="line.175"></a> |
| <span class="sourceLineNo">176</span> /**<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> * Prefix used when checking for wal membership.<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> */<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> protected final String prefixPathStr;<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> protected final WALCoprocessorHost coprocessorHost;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> /**<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> * conf object<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> */<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> protected final Configuration conf;<a name="line.186"></a> |
| <span class="sourceLineNo">187</span><a name="line.187"></a> |
| <span class="sourceLineNo">188</span> /** Listeners that are called on WAL events. */<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> protected final List<WALActionsListener> listeners = new CopyOnWriteArrayList<>();<a name="line.189"></a> |
| <span class="sourceLineNo">190</span><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> /**<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * Class that does accounting of sequenceids in WAL subsystem. Holds oldest outstanding sequence<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * id as yet not flushed as well as the most recent edit sequence id appended to the WAL. Has<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> * facility for answering questions such as "Is it safe to GC a WAL?".<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> */<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> protected final SequenceIdAccounting sequenceIdAccounting = new SequenceIdAccounting();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> /** The slow sync will be logged; the very slow sync will cause the WAL to be rolled. */<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> protected final long slowSyncNs, rollOnSyncNs;<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> protected final int slowSyncRollThreshold;<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> protected final int slowSyncCheckInterval;<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> protected final AtomicInteger slowSyncCount = new AtomicInteger();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span><a name="line.203"></a> |
| <span class="sourceLineNo">204</span> private final long walSyncTimeoutNs;<a name="line.204"></a> |
| <span class="sourceLineNo">205</span><a name="line.205"></a> |
| <span class="sourceLineNo">206</span> private final long walTooOldNs;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span><a name="line.207"></a> |
| <span class="sourceLineNo">208</span> // If > than this size, roll the log.<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> protected final long logrollsize;<a name="line.209"></a> |
| <span class="sourceLineNo">210</span><a name="line.210"></a> |
| <span class="sourceLineNo">211</span> /**<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> * Block size to use writing files.<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> */<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> protected final long blocksize;<a name="line.214"></a> |
| <span class="sourceLineNo">215</span><a name="line.215"></a> |
| <span class="sourceLineNo">216</span> /*<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> * If more than this many logs, force flush of oldest region to oldest edit goes to disk. If too<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> * many and we crash, then will take forever replaying. Keep the number of logs tidy.<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> */<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> protected final int maxLogs;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span><a name="line.221"></a> |
| <span class="sourceLineNo">222</span> protected final boolean useHsync;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span><a name="line.223"></a> |
| <span class="sourceLineNo">224</span> /**<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> * This lock makes sure only one log roll runs at a time. Should not be taken while any other lock<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> * is held. We don't just use synchronized because that results in bogus and tedious findbugs<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> * warning when it thinks synchronized controls writer thread safety. It is held when we are<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> * actually rolling the log. It is checked when we are looking to see if we should roll the log or<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> * not.<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> */<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> protected final ReentrantLock rollWriterLock = new ReentrantLock(true);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> // The timestamp (in ms) when the log file was created.<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> protected final AtomicLong filenum = new AtomicLong(-1);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> // Number of transactions in the current Wal.<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> protected final AtomicInteger numEntries = new AtomicInteger(0);<a name="line.237"></a> |
| <span class="sourceLineNo">238</span><a name="line.238"></a> |
| <span class="sourceLineNo">239</span> /**<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> * The highest known outstanding unsync'd WALEdit transaction id. Usually, we use a queue to pass<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> * WALEdit to background consumer thread, and the transaction id is the sequence number of the<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> * corresponding entry in queue.<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> */<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> protected volatile long highestUnsyncedTxid = -1;<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> /**<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> * Updated to the transaction id of the last successful sync call. This can be less than<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> * {@link #highestUnsyncedTxid} for case where we have an append where a sync has not yet come in<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * for it.<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> */<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> protected final AtomicLong highestSyncedTxid = new AtomicLong(0);<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> /**<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> * The total size of wal<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> */<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> protected final AtomicLong totalLogSize = new AtomicLong(0);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> /**<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> * Current log file.<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> */<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> volatile W writer;<a name="line.260"></a> |
| <span class="sourceLineNo">261</span><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> // Last time to check low replication on hlog's pipeline<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> private volatile long lastTimeCheckLowReplication = EnvironmentEdgeManager.currentTime();<a name="line.263"></a> |
| <span class="sourceLineNo">264</span><a name="line.264"></a> |
| <span class="sourceLineNo">265</span> // Last time we asked to roll the log due to a slow sync<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> private volatile long lastTimeCheckSlowSync = EnvironmentEdgeManager.currentTime();<a name="line.266"></a> |
| <span class="sourceLineNo">267</span><a name="line.267"></a> |
| <span class="sourceLineNo">268</span> protected volatile boolean closed = false;<a name="line.268"></a> |
| <span class="sourceLineNo">269</span><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> protected final AtomicBoolean shutdown = new AtomicBoolean(false);<a name="line.270"></a> |
| <span class="sourceLineNo">271</span><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> private long nextLogTooOldNs = System.nanoTime();<a name="line.272"></a> |
| <span class="sourceLineNo">273</span><a name="line.273"></a> |
| <span class="sourceLineNo">274</span> /**<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> * WAL Comparator; it compares the timestamp (log filenum), present in the log file name. Throws<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> * an IllegalArgumentException if used to compare paths from different wals.<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> */<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> final Comparator<Path> LOG_NAME_COMPARATOR =<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> (o1, o2) -> Long.compare(getFileNumFromFileName(o1), getFileNumFromFileName(o2));<a name="line.279"></a> |
| <span class="sourceLineNo">280</span><a name="line.280"></a> |
| <span class="sourceLineNo">281</span> private static final class WalProps {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> /**<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * Map the encoded region name to the highest sequence id.<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> * <p/>Contains all the regions it has an entry for.<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> */<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> public final Map<byte[], Long> encodedName2HighestSequenceId;<a name="line.287"></a> |
| <span class="sourceLineNo">288</span><a name="line.288"></a> |
| <span class="sourceLineNo">289</span> /**<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * The log file size. Notice that the size may not be accurate if we do asynchronous close in<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> * sub classes.<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> */<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> public final long logSize;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> /**<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> * The nanoTime of the log rolling, used to determine the time interval that has passed since.<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> */<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> public final long rollTimeNs;<a name="line.298"></a> |
| <span class="sourceLineNo">299</span><a name="line.299"></a> |
| <span class="sourceLineNo">300</span> public WalProps(Map<byte[], Long> encodedName2HighestSequenceId, long logSize) {<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> this.encodedName2HighestSequenceId = encodedName2HighestSequenceId;<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> this.logSize = logSize;<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> this.rollTimeNs = System.nanoTime();<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> }<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> }<a name="line.305"></a> |
| <span class="sourceLineNo">306</span><a name="line.306"></a> |
| <span class="sourceLineNo">307</span> /**<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> * Map of WAL log file to properties. The map is sorted by the log file creation timestamp<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * (contained in the log file name).<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> */<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> protected ConcurrentNavigableMap<Path, WalProps> walFile2Props =<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> new ConcurrentSkipListMap<>(LOG_NAME_COMPARATOR);<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> /**<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> * Map of {@link SyncFuture}s owned by Thread objects. Used so we reuse SyncFutures.<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> * Thread local is used so JVM can GC the terminated thread for us. See HBASE-21228<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> * <p><a name="line.317"></a> |
| <span class="sourceLineNo">318</span> */<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> private final ThreadLocal<SyncFuture> cachedSyncFutures;<a name="line.319"></a> |
| <span class="sourceLineNo">320</span><a name="line.320"></a> |
| <span class="sourceLineNo">321</span> /**<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> * The class name of the runtime implementation, used as prefix for logging/tracing.<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> * <p><a name="line.323"></a> |
| <span class="sourceLineNo">324</span> * Performance testing shows getClass().getSimpleName() might be a bottleneck so we store it here,<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> * refer to HBASE-17676 for more details<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> * </p><a name="line.326"></a> |
| <span class="sourceLineNo">327</span> */<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> protected final String implClassName;<a name="line.328"></a> |
| <span class="sourceLineNo">329</span><a name="line.329"></a> |
| <span class="sourceLineNo">330</span> protected final AtomicBoolean rollRequested = new AtomicBoolean(false);<a name="line.330"></a> |
| <span class="sourceLineNo">331</span><a name="line.331"></a> |
| <span class="sourceLineNo">332</span> public long getFilenum() {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> return this.filenum.get();<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span><a name="line.335"></a> |
| <span class="sourceLineNo">336</span> /**<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> * A log file has a creation timestamp (in ms) in its file name ({@link #filenum}. This helper<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> * method returns the creation timestamp from a given log file. It extracts the timestamp assuming<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> * the filename is created with the {@link #computeFilename(long filenum)} method.<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> * @return timestamp, as in the log file name.<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> */<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> protected long getFileNumFromFileName(Path fileName) {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> checkNotNull(fileName, "file name can't be null");<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> if (!ourFiles.accept(fileName)) {<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> throw new IllegalArgumentException(<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> "The log file " + fileName + " doesn't belong to this WAL. (" + toString() + ")");<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> }<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> final String fileNameString = fileName.toString();<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> String chompedPath = fileNameString.substring(prefixPathStr.length(),<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> (fileNameString.length() - walFileSuffix.length()));<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> return Long.parseLong(chompedPath);<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> }<a name="line.352"></a> |
| <span class="sourceLineNo">353</span><a name="line.353"></a> |
| <span class="sourceLineNo">354</span> private int calculateMaxLogFiles(Configuration conf, long logRollSize) {<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> Pair<Long, MemoryType> globalMemstoreSize = MemorySizeUtil.getGlobalMemStoreSize(conf);<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> return (int) ((globalMemstoreSize.getFirst() * 2) / logRollSize);<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span><a name="line.358"></a> |
| <span class="sourceLineNo">359</span> // must be power of 2<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> protected final int getPreallocatedEventCount() {<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> // Preallocate objects to use on the ring buffer. The way that appends and syncs work, we will<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> // be stuck and make no progress if the buffer is filled with appends only and there is no<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> // sync. If no sync, then the handlers will be outstanding just waiting on sync completion<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> // before they return.<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> int preallocatedEventCount =<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> this.conf.getInt(RING_BUFFER_SLOT_COUNT, 1024 * 16);<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> checkArgument(preallocatedEventCount >= 0, RING_BUFFER_SLOT_COUNT + " must > 0");<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> int floor = Integer.highestOneBit(preallocatedEventCount);<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> if (floor == preallocatedEventCount) {<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> return floor;<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> // max capacity is 1 << 30<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> if (floor >= 1 << 29) {<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> return 1 << 30;<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> }<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> return floor << 1;<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span><a name="line.378"></a> |
| <span class="sourceLineNo">379</span> protected AbstractFSWAL(final FileSystem fs, final Path rootDir, final String logDir,<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> final String archiveDir, final Configuration conf, final List<WALActionsListener> listeners,<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> final boolean failIfWALExists, final String prefix, final String suffix)<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> throws FailedLogCloseException, IOException {<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> this.fs = fs;<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> this.walDir = new Path(rootDir, logDir);<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> this.walArchiveDir = new Path(rootDir, archiveDir);<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> this.conf = conf;<a name="line.386"></a> |
| <span class="sourceLineNo">387</span><a name="line.387"></a> |
| <span class="sourceLineNo">388</span> if (!fs.exists(walDir) && !fs.mkdirs(walDir)) {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> throw new IOException("Unable to mkdir " + walDir);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span><a name="line.391"></a> |
| <span class="sourceLineNo">392</span> if (!fs.exists(this.walArchiveDir)) {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> if (!fs.mkdirs(this.walArchiveDir)) {<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> throw new IOException("Unable to mkdir " + this.walArchiveDir);<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> }<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> }<a name="line.396"></a> |
| <span class="sourceLineNo">397</span><a name="line.397"></a> |
| <span class="sourceLineNo">398</span> // If prefix is null||empty then just name it wal<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> this.walFilePrefix =<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> prefix == null || prefix.isEmpty() ? "wal" : URLEncoder.encode(prefix, "UTF8");<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> // we only correctly differentiate suffices when numeric ones start with '.'<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> if (suffix != null && !(suffix.isEmpty()) && !(suffix.startsWith(WAL_FILE_NAME_DELIMITER))) {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> throw new IllegalArgumentException("WAL suffix must start with '" + WAL_FILE_NAME_DELIMITER +<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> "' but instead was '" + suffix + "'");<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> }<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> // Now that it exists, set the storage policy for the entire directory of wal files related to<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> // this FSHLog instance<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> String storagePolicy =<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> conf.get(HConstants.WAL_STORAGE_POLICY, HConstants.DEFAULT_WAL_STORAGE_POLICY);<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> CommonFSUtils.setStoragePolicy(fs, this.walDir, storagePolicy);<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> this.walFileSuffix = (suffix == null) ? "" : URLEncoder.encode(suffix, "UTF8");<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> this.prefixPathStr = new Path(walDir, walFilePrefix + WAL_FILE_NAME_DELIMITER).toString();<a name="line.412"></a> |
| <span class="sourceLineNo">413</span><a name="line.413"></a> |
| <span class="sourceLineNo">414</span> this.ourFiles = new PathFilter() {<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> @Override<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> public boolean accept(final Path fileName) {<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> // The path should start with dir/<prefix> and end with our suffix<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> final String fileNameString = fileName.toString();<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> if (!fileNameString.startsWith(prefixPathStr)) {<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> return false;<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> }<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> if (walFileSuffix.isEmpty()) {<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> // in the case of the null suffix, we need to ensure the filename ends with a timestamp.<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> return org.apache.commons.lang3.StringUtils<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> .isNumeric(fileNameString.substring(prefixPathStr.length()));<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> } else if (!fileNameString.endsWith(walFileSuffix)) {<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> return false;<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> }<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> return true;<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> }<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> };<a name="line.431"></a> |
| <span class="sourceLineNo">432</span><a name="line.432"></a> |
| <span class="sourceLineNo">433</span> if (failIfWALExists) {<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> final FileStatus[] walFiles = CommonFSUtils.listStatus(fs, walDir, ourFiles);<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> if (null != walFiles && 0 != walFiles.length) {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> throw new IOException("Target WAL already exists within directory " + walDir);<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> }<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> }<a name="line.438"></a> |
| <span class="sourceLineNo">439</span><a name="line.439"></a> |
| <span class="sourceLineNo">440</span> // Register listeners. TODO: Should this exist anymore? We have CPs?<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> if (listeners != null) {<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> for (WALActionsListener i : listeners) {<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> registerWALActionsListener(i);<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> }<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> }<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> this.coprocessorHost = new WALCoprocessorHost(this, conf);<a name="line.446"></a> |
| <span class="sourceLineNo">447</span><a name="line.447"></a> |
| <span class="sourceLineNo">448</span> // Schedule a WAL roll when the WAL is 50% of the HDFS block size. Scheduling at 50% of block<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> // size should make it so WAL rolls before we get to the end-of-block (Block transitions cost<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> // some latency). In hbase-1 we did this differently. We scheduled a roll when we hit 95% of<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> // the block size but experience from the field has it that this was not enough time for the<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> // roll to happen before end-of-block. So the new accounting makes WALs of about the same<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> // size as those made in hbase-1 (to prevent surprise), we now have default block size as<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> // 2 times the DFS default: i.e. 2 * DFS default block size rolling at 50% full will generally<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> // make similar size logs to 1 * DFS default block size rolling at 95% full. See HBASE-19148.<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> this.blocksize = WALUtil.getWALBlockSize(this.conf, this.fs, this.walDir);<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> float multiplier = conf.getFloat(WAL_ROLL_MULTIPLIER, 0.5f);<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> this.logrollsize = (long) (this.blocksize * multiplier);<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> this.maxLogs = conf.getInt(MAX_LOGS, Math.max(32, calculateMaxLogFiles(conf, logrollsize)));<a name="line.459"></a> |
| <span class="sourceLineNo">460</span><a name="line.460"></a> |
| <span class="sourceLineNo">461</span> LOG.info("WAL configuration: blocksize=" + StringUtils.byteDesc(blocksize) + ", rollsize=" +<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> StringUtils.byteDesc(this.logrollsize) + ", prefix=" + this.walFilePrefix + ", suffix=" +<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> walFileSuffix + ", logDir=" + this.walDir + ", archiveDir=" + this.walArchiveDir +<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> ", maxLogs=" + this.maxLogs);<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> this.slowSyncNs = TimeUnit.MILLISECONDS.toNanos(conf.getInt(SLOW_SYNC_TIME_MS,<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> DEFAULT_SLOW_SYNC_TIME_MS));<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> this.rollOnSyncNs = TimeUnit.MILLISECONDS.toNanos(conf.getInt(ROLL_ON_SYNC_TIME_MS,<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> DEFAULT_ROLL_ON_SYNC_TIME_MS));<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> this.slowSyncRollThreshold = conf.getInt(SLOW_SYNC_ROLL_THRESHOLD,<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> DEFAULT_SLOW_SYNC_ROLL_THRESHOLD);<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> this.slowSyncCheckInterval = conf.getInt(SLOW_SYNC_ROLL_INTERVAL_MS,<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> DEFAULT_SLOW_SYNC_ROLL_INTERVAL_MS);<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> this.walSyncTimeoutNs = TimeUnit.MILLISECONDS.toNanos(conf.getLong(WAL_SYNC_TIMEOUT_MS,<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> DEFAULT_WAL_SYNC_TIMEOUT_MS));<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> this.cachedSyncFutures = new ThreadLocal<SyncFuture>() {<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> @Override<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> protected SyncFuture initialValue() {<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> return new SyncFuture();<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> }<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> };<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> this.implClassName = getClass().getSimpleName();<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> this.walTooOldNs = TimeUnit.SECONDS.toNanos(conf.getInt(<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> SURVIVED_TOO_LONG_SEC_KEY, SURVIVED_TOO_LONG_SEC_DEFAULT));<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> this.useHsync = conf.getBoolean(HRegion.WAL_HSYNC_CONF_KEY, HRegion.DEFAULT_WAL_HSYNC);<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> }<a name="line.485"></a> |
| <span class="sourceLineNo">486</span><a name="line.486"></a> |
| <span class="sourceLineNo">487</span> /**<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> * Used to initialize the WAL. Usually just call rollWriter to create the first log writer.<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> */<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> public void init() throws IOException {<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> rollWriter();<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> }<a name="line.492"></a> |
| <span class="sourceLineNo">493</span><a name="line.493"></a> |
| <span class="sourceLineNo">494</span> @Override<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> public void registerWALActionsListener(WALActionsListener listener) {<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> this.listeners.add(listener);<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> }<a name="line.497"></a> |
| <span class="sourceLineNo">498</span><a name="line.498"></a> |
| <span class="sourceLineNo">499</span> @Override<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> public boolean unregisterWALActionsListener(WALActionsListener listener) {<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> return this.listeners.remove(listener);<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> }<a name="line.502"></a> |
| <span class="sourceLineNo">503</span><a name="line.503"></a> |
| <span class="sourceLineNo">504</span> @Override<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> public WALCoprocessorHost getCoprocessorHost() {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> return coprocessorHost;<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> }<a name="line.507"></a> |
| <span class="sourceLineNo">508</span><a name="line.508"></a> |
| <span class="sourceLineNo">509</span> @Override<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> public Long startCacheFlush(byte[] encodedRegionName, Set<byte[]> families) {<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> return this.sequenceIdAccounting.startCacheFlush(encodedRegionName, families);<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> }<a name="line.512"></a> |
| <span class="sourceLineNo">513</span><a name="line.513"></a> |
| <span class="sourceLineNo">514</span> @Override<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> public Long startCacheFlush(byte[] encodedRegionName, Map<byte[], Long> familyToSeq) {<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> return this.sequenceIdAccounting.startCacheFlush(encodedRegionName, familyToSeq);<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> }<a name="line.517"></a> |
| <span class="sourceLineNo">518</span><a name="line.518"></a> |
| <span class="sourceLineNo">519</span> @Override<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> public void completeCacheFlush(byte[] encodedRegionName, long maxFlushedSeqId) {<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> this.sequenceIdAccounting.completeCacheFlush(encodedRegionName, maxFlushedSeqId);<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> }<a name="line.522"></a> |
| <span class="sourceLineNo">523</span><a name="line.523"></a> |
| <span class="sourceLineNo">524</span> @Override<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> public void abortCacheFlush(byte[] encodedRegionName) {<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> this.sequenceIdAccounting.abortCacheFlush(encodedRegionName);<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> }<a name="line.527"></a> |
| <span class="sourceLineNo">528</span><a name="line.528"></a> |
| <span class="sourceLineNo">529</span> @Override<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> public long getEarliestMemStoreSeqNum(byte[] encodedRegionName) {<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> // Used by tests. Deprecated as too subtle for general usage.<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> return this.sequenceIdAccounting.getLowestSequenceId(encodedRegionName);<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> }<a name="line.533"></a> |
| <span class="sourceLineNo">534</span><a name="line.534"></a> |
| <span class="sourceLineNo">535</span> @Override<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> public long getEarliestMemStoreSeqNum(byte[] encodedRegionName, byte[] familyName) {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> // This method is used by tests and for figuring if we should flush or not because our<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> // sequenceids are too old. It is also used reporting the master our oldest sequenceid for use<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> // figuring what edits can be skipped during log recovery. getEarliestMemStoreSequenceId<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> // from this.sequenceIdAccounting is looking first in flushingOldestStoreSequenceIds, the<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> // currently flushing sequence ids, and if anything found there, it is returning these. This is<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> // the right thing to do for the reporting oldest sequenceids to master; we won't skip edits if<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> // we crash during the flush. For figuring what to flush, we might get requeued if our sequence<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> // id is old even though we are currently flushing. This may mean we do too much flushing.<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> return this.sequenceIdAccounting.getLowestSequenceId(encodedRegionName, familyName);<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> }<a name="line.546"></a> |
| <span class="sourceLineNo">547</span><a name="line.547"></a> |
| <span class="sourceLineNo">548</span> @Override<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> public Map<byte[], List<byte[]>> rollWriter() throws FailedLogCloseException, IOException {<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> return rollWriter(false);<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> }<a name="line.551"></a> |
| <span class="sourceLineNo">552</span><a name="line.552"></a> |
| <span class="sourceLineNo">553</span> /**<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> * This is a convenience method that computes a new filename with a given file-number.<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> * @param filenum to use<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> * @return Path<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> */<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> protected Path computeFilename(final long filenum) {<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> if (filenum < 0) {<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> throw new RuntimeException("WAL file number can't be < 0");<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> }<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> String child = walFilePrefix + WAL_FILE_NAME_DELIMITER + filenum + walFileSuffix;<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> return new Path(walDir, child);<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> }<a name="line.564"></a> |
| <span class="sourceLineNo">565</span><a name="line.565"></a> |
| <span class="sourceLineNo">566</span> /**<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> * This is a convenience method that computes a new filename with a given using the current WAL<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> * file-number<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> * @return Path<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> */<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> public Path getCurrentFileName() {<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> return computeFilename(this.filenum.get());<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span><a name="line.574"></a> |
| <span class="sourceLineNo">575</span> /**<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> * retrieve the next path to use for writing. Increments the internal filenum.<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> */<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> private Path getNewPath() throws IOException {<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> this.filenum.set(System.currentTimeMillis());<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> Path newPath = getCurrentFileName();<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> while (fs.exists(newPath)) {<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> this.filenum.incrementAndGet();<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> newPath = getCurrentFileName();<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> }<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> return newPath;<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> }<a name="line.586"></a> |
| <span class="sourceLineNo">587</span><a name="line.587"></a> |
| <span class="sourceLineNo">588</span> @VisibleForTesting<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> Path getOldPath() {<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> long currentFilenum = this.filenum.get();<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> Path oldPath = null;<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> if (currentFilenum > 0) {<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> // ComputeFilename will take care of meta wal filename<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> oldPath = computeFilename(currentFilenum);<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> } // I presume if currentFilenum is <= 0, this is first file and null for oldPath if fine?<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> return oldPath;<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> }<a name="line.597"></a> |
| <span class="sourceLineNo">598</span><a name="line.598"></a> |
| <span class="sourceLineNo">599</span> /**<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> * Tell listeners about pre log roll.<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> */<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> private void tellListenersAboutPreLogRoll(final Path oldPath, final Path newPath)<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> throws IOException {<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> coprocessorHost.preWALRoll(oldPath, newPath);<a name="line.604"></a> |
| <span class="sourceLineNo">605</span><a name="line.605"></a> |
| <span class="sourceLineNo">606</span> if (!this.listeners.isEmpty()) {<a name="line.606"></a> |
| <span class="sourceLineNo">607</span> for (WALActionsListener i : this.listeners) {<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> i.preLogRoll(oldPath, newPath);<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> }<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> }<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> }<a name="line.611"></a> |
| <span class="sourceLineNo">612</span><a name="line.612"></a> |
| <span class="sourceLineNo">613</span> /**<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> * Tell listeners about post log roll.<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> */<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> private void tellListenersAboutPostLogRoll(final Path oldPath, final Path newPath)<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> throws IOException {<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> if (!this.listeners.isEmpty()) {<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> for (WALActionsListener i : this.listeners) {<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> i.postLogRoll(oldPath, newPath);<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> }<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> }<a name="line.622"></a> |
| <span class="sourceLineNo">623</span><a name="line.623"></a> |
| <span class="sourceLineNo">624</span> coprocessorHost.postWALRoll(oldPath, newPath);<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> }<a name="line.625"></a> |
| <span class="sourceLineNo">626</span><a name="line.626"></a> |
| <span class="sourceLineNo">627</span> // public only until class moves to o.a.h.h.wal<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> /** @return the number of rolled log files */<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> public int getNumRolledLogFiles() {<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> return walFile2Props.size();<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> }<a name="line.631"></a> |
| <span class="sourceLineNo">632</span><a name="line.632"></a> |
| <span class="sourceLineNo">633</span> // public only until class moves to o.a.h.h.wal<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> /** @return the number of log files in use */<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> public int getNumLogFiles() {<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> // +1 for current use log<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> return getNumRolledLogFiles() + 1;<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> }<a name="line.638"></a> |
| <span class="sourceLineNo">639</span><a name="line.639"></a> |
| <span class="sourceLineNo">640</span> /**<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> * If the number of un-archived WAL files ('live' WALs) is greater than maximum allowed,<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> * check the first (oldest) WAL, and return those regions which should be flushed so that<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> * it can be let-go/'archived'.<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> * @return stores of regions (encodedRegionNames) to flush in order to archive oldest WAL file.<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> */<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> Map<byte[], List<byte[]>> findRegionsToForceFlush() throws IOException {<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> Map<byte[], List<byte[]>> regions = null;<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> int logCount = getNumRolledLogFiles();<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> if (logCount > this.maxLogs && logCount > 0) {<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> Map.Entry<Path, WalProps> firstWALEntry = this.walFile2Props.firstEntry();<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> regions =<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> this.sequenceIdAccounting.findLower(firstWALEntry.getValue().encodedName2HighestSequenceId);<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> }<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> if (regions != null) {<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> List<String> listForPrint = new ArrayList();<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> for (Map.Entry<byte[], List<byte[]>> r : regions.entrySet()) {<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> StringBuilder families = new StringBuilder();<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> for (int i = 0; i < r.getValue().size(); i++) {<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> if (i > 0) {<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> families.append(",");<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> }<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> families.append(Bytes.toString(r.getValue().get(i)));<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> }<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> listForPrint.add(Bytes.toStringBinary(r.getKey()) + "[" + families.toString() + "]");<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> }<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> LOG.info("Too many WALs; count=" + logCount + ", max=" + this.maxLogs +<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> "; forcing (partial) flush of " + regions.size() + " region(s): " +<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> StringUtils.join(",", listForPrint));<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> }<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> return regions;<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> }<a name="line.671"></a> |
| <span class="sourceLineNo">672</span><a name="line.672"></a> |
| <span class="sourceLineNo">673</span> /**<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> * Archive old logs. A WAL is eligible for archiving if all its WALEdits have been flushed.<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> */<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> private void cleanOldLogs() throws IOException {<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> List<Pair<Path, Long>> logsToArchive = null;<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> long now = System.nanoTime();<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> boolean mayLogTooOld = nextLogTooOldNs <= now;<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> ArrayList<byte[]> regionsBlockingWal = null;<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> // For each log file, look at its Map of regions to highest sequence id; if all sequence ids<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> // are older than what is currently in memory, the WAL can be GC'd.<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> for (Map.Entry<Path, WalProps> e : this.walFile2Props.entrySet()) {<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> Path log = e.getKey();<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> ArrayList<byte[]> regionsBlockingThisWal = null;<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> long ageNs = now - e.getValue().rollTimeNs;<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> if (ageNs > walTooOldNs) {<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> if (mayLogTooOld && regionsBlockingWal == null) {<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> regionsBlockingWal = new ArrayList<>();<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> }<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> regionsBlockingThisWal = regionsBlockingWal;<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> }<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> Map<byte[], Long> sequenceNums = e.getValue().encodedName2HighestSequenceId;<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> if (this.sequenceIdAccounting.areAllLower(sequenceNums, regionsBlockingThisWal)) {<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> if (logsToArchive == null) {<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> logsToArchive = new ArrayList<>();<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> }<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> logsToArchive.add(Pair.newPair(log, e.getValue().logSize));<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> if (LOG.isTraceEnabled()) {<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> LOG.trace("WAL file ready for archiving " + log);<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> }<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> } else if (regionsBlockingThisWal != null) {<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> StringBuilder sb = new StringBuilder(log.toString()).append(" has not been archived for ")<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> .append(TimeUnit.NANOSECONDS.toSeconds(ageNs)).append(" seconds; blocked by: ");<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> boolean isFirst = true;<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> for (byte[] region : regionsBlockingThisWal) {<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> if (!isFirst) {<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> sb.append("; ");<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> }<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> isFirst = false;<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> sb.append(Bytes.toString(region));<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> }<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> LOG.warn(sb.toString());<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> nextLogTooOldNs = now + SURVIVED_TOO_LONG_LOG_INTERVAL_NS;<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> regionsBlockingThisWal.clear();<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> }<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> }<a name="line.717"></a> |
| <span class="sourceLineNo">718</span> if (logsToArchive != null) {<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> for (Pair<Path, Long> logAndSize : logsToArchive) {<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> this.totalLogSize.addAndGet(-logAndSize.getSecond());<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> archiveLogFile(logAndSize.getFirst());<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> this.walFile2Props.remove(logAndSize.getFirst());<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> }<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> }<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> }<a name="line.725"></a> |
| <span class="sourceLineNo">726</span><a name="line.726"></a> |
| <span class="sourceLineNo">727</span> /*<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> * only public so WALSplitter can use.<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> * @return archived location of a WAL file with the given path p<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> */<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> public static Path getWALArchivePath(Path archiveDir, Path p) {<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> return new Path(archiveDir, p.getName());<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> }<a name="line.733"></a> |
| <span class="sourceLineNo">734</span><a name="line.734"></a> |
| <span class="sourceLineNo">735</span> private void archiveLogFile(final Path p) throws IOException {<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> Path newPath = getWALArchivePath(this.walArchiveDir, p);<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> // Tell our listeners that a log is going to be archived.<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> if (!this.listeners.isEmpty()) {<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> for (WALActionsListener i : this.listeners) {<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> i.preLogArchive(p, newPath);<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> }<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> }<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> LOG.info("Archiving " + p + " to " + newPath);<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> if (!CommonFSUtils.renameAndSetModifyTime(this.fs, p, newPath)) {<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> throw new IOException("Unable to rename " + p + " to " + newPath);<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> }<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> // Tell our listeners that a log has been archived.<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> if (!this.listeners.isEmpty()) {<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> for (WALActionsListener i : this.listeners) {<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> i.postLogArchive(p, newPath);<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> }<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> }<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> }<a name="line.753"></a> |
| <span class="sourceLineNo">754</span><a name="line.754"></a> |
| <span class="sourceLineNo">755</span> protected final void logRollAndSetupWalProps(Path oldPath, Path newPath, long oldFileLen) {<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> int oldNumEntries = this.numEntries.getAndSet(0);<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> String newPathString = newPath != null ? CommonFSUtils.getPath(newPath) : null;<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> if (oldPath != null) {<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> this.walFile2Props.put(oldPath,<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> new WalProps(this.sequenceIdAccounting.resetHighest(), oldFileLen));<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> this.totalLogSize.addAndGet(oldFileLen);<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> LOG.info("Rolled WAL {} with entries={}, filesize={}; new WAL {}",<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> CommonFSUtils.getPath(oldPath), oldNumEntries, StringUtils.byteDesc(oldFileLen),<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> newPathString);<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> } else {<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> LOG.info("New WAL {}", newPathString);<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> }<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> }<a name="line.768"></a> |
| <span class="sourceLineNo">769</span><a name="line.769"></a> |
| <span class="sourceLineNo">770</span> /**<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> * Cleans up current writer closing it and then puts in place the passed in {@code nextWriter}.<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> * <p/><a name="line.772"></a> |
| <span class="sourceLineNo">773</span> * <ul><a name="line.773"></a> |
| <span class="sourceLineNo">774</span> * <li>In the case of creating a new WAL, oldPath will be null.</li><a name="line.774"></a> |
| <span class="sourceLineNo">775</span> * <li>In the case of rolling over from one file to the next, none of the parameters will be null.<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> * </li><a name="line.776"></a> |
| <span class="sourceLineNo">777</span> * <li>In the case of closing out this FSHLog with no further use newPath and nextWriter will be<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> * null.</li><a name="line.778"></a> |
| <span class="sourceLineNo">779</span> * </ul><a name="line.779"></a> |
| <span class="sourceLineNo">780</span> * @param oldPath may be null<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> * @param newPath may be null<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> * @param nextWriter may be null<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> * @return the passed in <code>newPath</code><a name="line.783"></a> |
| <span class="sourceLineNo">784</span> * @throws IOException if there is a problem flushing or closing the underlying FS<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> */<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> @VisibleForTesting<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> Path replaceWriter(Path oldPath, Path newPath, W nextWriter) throws IOException {<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> try (TraceScope scope = TraceUtil.createTrace("FSHFile.replaceWriter")) {<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> doReplaceWriter(oldPath, newPath, nextWriter);<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> return newPath;<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> }<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> }<a name="line.792"></a> |
| <span class="sourceLineNo">793</span><a name="line.793"></a> |
| <span class="sourceLineNo">794</span> protected final void blockOnSync(SyncFuture syncFuture) throws IOException {<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> // Now we have published the ringbuffer, halt the current thread until we get an answer back.<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> try {<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> if (syncFuture != null) {<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> if (closed) {<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> throw new IOException("WAL has been closed");<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> } else {<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> syncFuture.get(walSyncTimeoutNs);<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> }<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> }<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> } catch (TimeoutIOException tioe) {<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> // SyncFuture reuse by thread, if TimeoutIOException happens, ringbuffer<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> // still refer to it, so if this thread use it next time may get a wrong<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> // result.<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> this.cachedSyncFutures.remove();<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> throw tioe;<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> } catch (InterruptedException ie) {<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> LOG.warn("Interrupted", ie);<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> throw convertInterruptedExceptionToIOException(ie);<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> } catch (ExecutionException e) {<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> throw ensureIOException(e.getCause());<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> }<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> }<a name="line.816"></a> |
| <span class="sourceLineNo">817</span><a name="line.817"></a> |
| <span class="sourceLineNo">818</span> private static IOException ensureIOException(final Throwable t) {<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> return (t instanceof IOException) ? (IOException) t : new IOException(t);<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> }<a name="line.820"></a> |
| <span class="sourceLineNo">821</span><a name="line.821"></a> |
| <span class="sourceLineNo">822</span> private IOException convertInterruptedExceptionToIOException(final InterruptedException ie) {<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> Thread.currentThread().interrupt();<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> IOException ioe = new InterruptedIOException();<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> ioe.initCause(ie);<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> return ioe;<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> }<a name="line.827"></a> |
| <span class="sourceLineNo">828</span><a name="line.828"></a> |
| <span class="sourceLineNo">829</span> @Override<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> public Map<byte[], List<byte[]>> rollWriter(boolean force) throws IOException {<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> rollWriterLock.lock();<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> try {<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> if (this.closed) {<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> throw new WALClosedException("WAL has been closed");<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> }<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> // Return if nothing to flush.<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> if (!force && this.writer != null && this.numEntries.get() <= 0) {<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> return null;<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> }<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> Map<byte[], List<byte[]>> regionsToFlush = null;<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> try (TraceScope scope = TraceUtil.createTrace("FSHLog.rollWriter")) {<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> Path oldPath = getOldPath();<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> Path newPath = getNewPath();<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> // Any exception from here on is catastrophic, non-recoverable so we currently abort.<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> W nextWriter = this.createWriterInstance(newPath);<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> tellListenersAboutPreLogRoll(oldPath, newPath);<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> // NewPath could be equal to oldPath if replaceWriter fails.<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> newPath = replaceWriter(oldPath, newPath, nextWriter);<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> tellListenersAboutPostLogRoll(oldPath, newPath);<a name="line.849"></a> |
| <span class="sourceLineNo">850</span> if (LOG.isDebugEnabled()) {<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> LOG.debug("Create new " + implClassName + " writer with pipeline: " +<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> Arrays.toString(getPipeline()));<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> }<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> // We got a new writer, so reset the slow sync count<a name="line.854"></a> |
| <span class="sourceLineNo">855</span> lastTimeCheckSlowSync = EnvironmentEdgeManager.currentTime();<a name="line.855"></a> |
| <span class="sourceLineNo">856</span> slowSyncCount.set(0);<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> // Can we delete any of the old log files?<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> if (getNumRolledLogFiles() > 0) {<a name="line.858"></a> |
| <span class="sourceLineNo">859</span> cleanOldLogs();<a name="line.859"></a> |
| <span class="sourceLineNo">860</span> regionsToFlush = findRegionsToForceFlush();<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> }<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> } catch (CommonFSUtils.StreamLacksCapabilityException exception) {<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> // If the underlying FileSystem can't do what we ask, treat as IO failure so<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> // we'll abort.<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> throw new IOException(<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> "Underlying FileSystem can't meet stream requirements. See RS log " + "for details.",<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> exception);<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> }<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> return regionsToFlush;<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> } finally {<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> rollWriterLock.unlock();<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> }<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> }<a name="line.873"></a> |
| <span class="sourceLineNo">874</span><a name="line.874"></a> |
| <span class="sourceLineNo">875</span> // public only until class moves to o.a.h.h.wal<a name="line.875"></a> |
| <span class="sourceLineNo">876</span> /** @return the size of log files in use */<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> public long getLogFileSize() {<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> return this.totalLogSize.get();<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> }<a name="line.879"></a> |
| <span class="sourceLineNo">880</span><a name="line.880"></a> |
| <span class="sourceLineNo">881</span> // public only until class moves to o.a.h.h.wal<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> public void requestLogRoll() {<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> requestLogRoll(ERROR);<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> }<a name="line.884"></a> |
| <span class="sourceLineNo">885</span><a name="line.885"></a> |
| <span class="sourceLineNo">886</span> /**<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> * Get the backing files associated with this WAL.<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> * @return may be null if there are no files.<a name="line.888"></a> |
| <span class="sourceLineNo">889</span> */<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> @VisibleForTesting<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> FileStatus[] getFiles() throws IOException {<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> return CommonFSUtils.listStatus(fs, walDir, ourFiles);<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> }<a name="line.893"></a> |
| <span class="sourceLineNo">894</span><a name="line.894"></a> |
| <span class="sourceLineNo">895</span> @Override<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> public void shutdown() throws IOException {<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> if (!shutdown.compareAndSet(false, true)) {<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> return;<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> }<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> closed = true;<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> // Tell our listeners that the log is closing<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> if (!this.listeners.isEmpty()) {<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> for (WALActionsListener i : this.listeners) {<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> i.logCloseRequested();<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> }<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> }<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> rollWriterLock.lock();<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> try {<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> doShutdown();<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> } finally {<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> rollWriterLock.unlock();<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> }<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> }<a name="line.913"></a> |
| <span class="sourceLineNo">914</span><a name="line.914"></a> |
| <span class="sourceLineNo">915</span> @Override<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> public void close() throws IOException {<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> shutdown();<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> final FileStatus[] files = getFiles();<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> if (null != files && 0 != files.length) {<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> for (FileStatus file : files) {<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> Path p = getWALArchivePath(this.walArchiveDir, file.getPath());<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> // Tell our listeners that a log is going to be archived.<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> if (!this.listeners.isEmpty()) {<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> for (WALActionsListener i : this.listeners) {<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> i.preLogArchive(file.getPath(), p);<a name="line.925"></a> |
| <span class="sourceLineNo">926</span> }<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> }<a name="line.927"></a> |
| <span class="sourceLineNo">928</span><a name="line.928"></a> |
| <span class="sourceLineNo">929</span> if (!CommonFSUtils.renameAndSetModifyTime(fs, file.getPath(), p)) {<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> throw new IOException("Unable to rename " + file.getPath() + " to " + p);<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> }<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> // Tell our listeners that a log was archived.<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> if (!this.listeners.isEmpty()) {<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> for (WALActionsListener i : this.listeners) {<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> i.postLogArchive(file.getPath(), p);<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> }<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> }<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> }<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> LOG.debug(<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> "Moved " + files.length + " WAL file(s) to " + CommonFSUtils.getPath(this.walArchiveDir));<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> }<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> LOG.info("Closed WAL: " + toString());<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> }<a name="line.943"></a> |
| <span class="sourceLineNo">944</span><a name="line.944"></a> |
| <span class="sourceLineNo">945</span> /**<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> * updates the sequence number of a specific store. depending on the flag: replaces current seq<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> * number if the given seq id is bigger, or even if it is lower than existing one<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> */<a name="line.948"></a> |
| <span class="sourceLineNo">949</span> @Override<a name="line.949"></a> |
| <span class="sourceLineNo">950</span> public void updateStore(byte[] encodedRegionName, byte[] familyName, Long sequenceid,<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> boolean onlyIfGreater) {<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> sequenceIdAccounting.updateStore(encodedRegionName, familyName, sequenceid, onlyIfGreater);<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> }<a name="line.953"></a> |
| <span class="sourceLineNo">954</span><a name="line.954"></a> |
| <span class="sourceLineNo">955</span> protected final SyncFuture getSyncFuture(long sequence, boolean forceSync) {<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> return cachedSyncFutures.get().reset(sequence).setForceSync(forceSync);<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> }<a name="line.957"></a> |
| <span class="sourceLineNo">958</span><a name="line.958"></a> |
| <span class="sourceLineNo">959</span> protected boolean isLogRollRequested() {<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> return rollRequested.get();<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> }<a name="line.961"></a> |
| <span class="sourceLineNo">962</span><a name="line.962"></a> |
| <span class="sourceLineNo">963</span> protected final void requestLogRoll(final WALActionsListener.RollRequestReason reason) {<a name="line.963"></a> |
| <span class="sourceLineNo">964</span> // If we have already requested a roll, don't do it again<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> // And only set rollRequested to true when there is a registered listener<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> if (!this.listeners.isEmpty() && rollRequested.compareAndSet(false, true)) {<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> for (WALActionsListener i : this.listeners) {<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> i.logRollRequested(reason);<a name="line.968"></a> |
| <span class="sourceLineNo">969</span> }<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> }<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> }<a name="line.971"></a> |
| <span class="sourceLineNo">972</span><a name="line.972"></a> |
| <span class="sourceLineNo">973</span> long getUnflushedEntriesCount() {<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> long highestSynced = this.highestSyncedTxid.get();<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> long highestUnsynced = this.highestUnsyncedTxid;<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> return highestSynced >= highestUnsynced ? 0 : highestUnsynced - highestSynced;<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> }<a name="line.977"></a> |
| <span class="sourceLineNo">978</span><a name="line.978"></a> |
| <span class="sourceLineNo">979</span> boolean isUnflushedEntries() {<a name="line.979"></a> |
| <span class="sourceLineNo">980</span> return getUnflushedEntriesCount() > 0;<a name="line.980"></a> |
| <span class="sourceLineNo">981</span> }<a name="line.981"></a> |
| <span class="sourceLineNo">982</span><a name="line.982"></a> |
| <span class="sourceLineNo">983</span> /**<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> * Exposed for testing only. Use to tricks like halt the ring buffer appending.<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> */<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> @VisibleForTesting<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> protected void atHeadOfRingBufferEventHandlerAppend() {<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> // Noop<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> }<a name="line.989"></a> |
| <span class="sourceLineNo">990</span><a name="line.990"></a> |
| <span class="sourceLineNo">991</span> protected final boolean appendEntry(W writer, FSWALEntry entry) throws IOException {<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> // TODO: WORK ON MAKING THIS APPEND FASTER. DOING WAY TOO MUCH WORK WITH CPs, PBing, etc.<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> atHeadOfRingBufferEventHandlerAppend();<a name="line.993"></a> |
| <span class="sourceLineNo">994</span> long start = EnvironmentEdgeManager.currentTime();<a name="line.994"></a> |
| <span class="sourceLineNo">995</span> byte[] encodedRegionName = entry.getKey().getEncodedRegionName();<a name="line.995"></a> |
| <span class="sourceLineNo">996</span> long regionSequenceId = entry.getKey().getSequenceId();<a name="line.996"></a> |
| <span class="sourceLineNo">997</span><a name="line.997"></a> |
| <span class="sourceLineNo">998</span> // Edits are empty, there is nothing to append. Maybe empty when we are looking for a<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> // region sequence id only, a region edit/sequence id that is not associated with an actual<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> // edit. It has to go through all the rigmarole to be sure we have the right ordering.<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> if (entry.getEdit().isEmpty()) {<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> return false;<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> }<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span><a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> // Coprocessor hook.<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> coprocessorHost.preWALWrite(entry.getRegionInfo(), entry.getKey(), entry.getEdit());<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span> if (!listeners.isEmpty()) {<a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> for (WALActionsListener i : listeners) {<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> i.visitLogEntryBeforeWrite(entry.getKey(), entry.getEdit());<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> }<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> }<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> doAppend(writer, entry);<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> assert highestUnsyncedTxid < entry.getTxid();<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> highestUnsyncedTxid = entry.getTxid();<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> if (entry.isCloseRegion()) {<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> // let's clean all the records of this region<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> sequenceIdAccounting.onRegionClose(encodedRegionName);<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> } else {<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> sequenceIdAccounting.update(encodedRegionName, entry.getFamilyNames(), regionSequenceId,<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> entry.isInMemStore());<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> }<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> coprocessorHost.postWALWrite(entry.getRegionInfo(), entry.getKey(), entry.getEdit());<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> // Update metrics.<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> postAppend(entry, EnvironmentEdgeManager.currentTime() - start);<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> numEntries.incrementAndGet();<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> return true;<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> }<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span><a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span> private long postAppend(final Entry e, final long elapsedTime) throws IOException {<a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> long len = 0;<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> if (!listeners.isEmpty()) {<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> for (Cell cell : e.getEdit().getCells()) {<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> len += PrivateCellUtil.estimatedSerializedSizeOf(cell);<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> }<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> for (WALActionsListener listener : listeners) {<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> listener.postAppend(len, elapsedTime, e.getKey(), e.getEdit());<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> }<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> }<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> return len;<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> }<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span><a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> protected final void postSync(long timeInNanos, int handlerSyncs) {<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> if (timeInNanos > this.slowSyncNs) {<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> String msg = new StringBuilder().append("Slow sync cost: ")<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> .append(TimeUnit.NANOSECONDS.toMillis(timeInNanos))<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> .append(" ms, current pipeline: ")<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> .append(Arrays.toString(getPipeline())).toString();<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> TraceUtil.addTimelineAnnotation(msg);<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span> LOG.info(msg);<a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> if (timeInNanos > this.rollOnSyncNs) {<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> // A single sync took too long.<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> // Elsewhere in checkSlowSync, called from checkLogRoll, we will look at cumulative<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> // effects. Here we have a single data point that indicates we should take immediate<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> // action, so do so.<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> LOG.warn("Requesting log roll because we exceeded slow sync threshold; time=" +<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> TimeUnit.NANOSECONDS.toMillis(timeInNanos) + " ms, threshold=" +<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> TimeUnit.NANOSECONDS.toMillis(rollOnSyncNs) + " ms, current pipeline: " +<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> Arrays.toString(getPipeline()));<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> requestLogRoll(SLOW_SYNC);<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> }<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> slowSyncCount.incrementAndGet(); // it's fine to unconditionally increment this<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> }<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> if (!listeners.isEmpty()) {<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> for (WALActionsListener listener : listeners) {<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> listener.postSync(timeInNanos, handlerSyncs);<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> }<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> }<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> }<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span><a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> protected final long stampSequenceIdAndPublishToRingBuffer(RegionInfo hri, WALKeyImpl key,<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> WALEdit edits, boolean inMemstore, RingBuffer<RingBufferTruck> ringBuffer)<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> throws IOException {<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> if (this.closed) {<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> throw new IOException(<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> "Cannot append; log is closed, regionName = " + hri.getRegionNameAsString());<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> }<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> MutableLong txidHolder = new MutableLong();<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> MultiVersionConcurrencyControl.WriteEntry we = key.getMvcc().begin(() -> {<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> txidHolder.setValue(ringBuffer.next());<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> });<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> long txid = txidHolder.longValue();<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> ServerCall<?> rpcCall = RpcServer.getCurrentCall().filter(c -> c instanceof ServerCall)<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> .filter(c -> c.getCellScanner() != null).map(c -> (ServerCall) c).orElse(null);<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> try (TraceScope scope = TraceUtil.createTrace(implClassName + ".append")) {<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> FSWALEntry entry = new FSWALEntry(txid, key, edits, hri, inMemstore, rpcCall);<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> entry.stampRegionSequenceId(we);<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> ringBuffer.get(txid).load(entry);<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span> } finally {<a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> ringBuffer.publish(txid);<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> }<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> return txid;<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> }<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span><a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> @Override<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> public String toString() {<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> return implClassName + " " + walFilePrefix + ":" + walFileSuffix + "(num " + filenum + ")";<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> }<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span><a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> /**<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> * if the given {@code path} is being written currently, then return its length.<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> * <p><a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> * This is used by replication to prevent replicating unacked log entries. See<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> * https://issues.apache.org/jira/browse/HBASE-14004 for more details.<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> */<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span> @Override<a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> public OptionalLong getLogFileSizeIfBeingWritten(Path path) {<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> rollWriterLock.lock();<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> try {<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> Path currentPath = getOldPath();<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> if (path.equals(currentPath)) {<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> W writer = this.writer;<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span> return writer != null ? OptionalLong.of(writer.getSyncedLength()) : OptionalLong.empty();<a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> } else {<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span> return OptionalLong.empty();<a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span> }<a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span> } finally {<a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> rollWriterLock.unlock();<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> }<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> }<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span><a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> @Override<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> public long appendData(RegionInfo info, WALKeyImpl key, WALEdit edits) throws IOException {<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span> return append(info, key, edits, true);<a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span> }<a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span><a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> @Override<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> public long appendMarker(RegionInfo info, WALKeyImpl key, WALEdit edits)<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span> throws IOException {<a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> return append(info, key, edits, false);<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> }<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span><a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> /**<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> * Append a set of edits to the WAL.<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span> * <p/><a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> * The WAL is not flushed/sync'd after this transaction completes BUT on return this edit must<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span> * have its region edit/sequence id assigned else it messes up our unification of mvcc and<a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> * sequenceid. On return <code>key</code> will have the region edit/sequence id filled in.<a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> * <p/><a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span> * NOTE: This append, at a time that is usually after this call returns, starts an mvcc<a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> * transaction by calling 'begin' wherein which we assign this update a sequenceid. At assignment<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> * time, we stamp all the passed in Cells inside WALEdit with their sequenceId. You must<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span> * 'complete' the transaction this mvcc transaction by calling<a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> * MultiVersionConcurrencyControl#complete(...) or a variant otherwise mvcc will get stuck. Do it<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> * in the finally of a try/finally block within which this append lives and any subsequent<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> * operations like sync or update of memstore, etc. Get the WriteEntry to pass mvcc out of the<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> * passed in WALKey <code>walKey</code> parameter. Be warned that the WriteEntry is not<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> * immediately available on return from this method. It WILL be available subsequent to a sync of<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> * this append; otherwise, you will just have to wait on the WriteEntry to get filled in.<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> * @param info the regioninfo associated with append<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> * @param key Modified by this call; we add to it this edits region edit/sequence id.<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> * @param edits Edits to append. MAY CONTAIN NO EDITS for case where we want to get an edit<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span> * sequence id that is after all currently appended edits.<a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> * @param inMemstore Always true except for case where we are writing a region event meta<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> * marker edit, for example, a compaction completion record into the WAL or noting a<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span> * Region Open event. In these cases the entry is just so we can finish an unfinished<a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> * compaction after a crash when the new Server reads the WAL on recovery, etc. These<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> * transition event 'Markers' do not go via the memstore. When memstore is false,<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> * we presume a Marker event edit.<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> * @return Returns a 'transaction id' and <code>key</code> will have the region edit/sequence id<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> * in it.<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> */<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> protected abstract long append(RegionInfo info, WALKeyImpl key, WALEdit edits, boolean inMemstore)<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> throws IOException;<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span><a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> protected abstract void doAppend(W writer, FSWALEntry entry) throws IOException;<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span><a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span> protected abstract W createWriterInstance(Path path)<a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span> throws IOException, CommonFSUtils.StreamLacksCapabilityException;<a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span><a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> /**<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> * Notice that you need to clear the {@link #rollRequested} flag in this method, as the new writer<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> * will begin to work before returning from this method. If we clear the flag after returning from<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> * this call, we may miss a roll request. The implementation class should choose a proper place to<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span> * clear the {@link #rollRequested} flag so we do not miss a roll request, typically before you<a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> * start writing to the new writer.<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span> */<a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> protected abstract void doReplaceWriter(Path oldPath, Path newPath, W nextWriter)<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span> throws IOException;<a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span><a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> protected abstract void doShutdown() throws IOException;<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span><a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> protected abstract boolean doCheckLogLowReplication();<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span><a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> /**<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> * @return true if we exceeded the slow sync roll threshold over the last check<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> * interval<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span> */<a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span> protected boolean doCheckSlowSync() {<a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span> boolean result = false;<a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> long now = EnvironmentEdgeManager.currentTime();<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span> long elapsedTime = now - lastTimeCheckSlowSync;<a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span> if (elapsedTime >= slowSyncCheckInterval) {<a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> if (slowSyncCount.get() >= slowSyncRollThreshold) {<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> if (elapsedTime >= (2 * slowSyncCheckInterval)) {<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> // If two or more slowSyncCheckInterval have elapsed this is a corner case<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> // where a train of slow syncs almost triggered us but then there was a long<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> // interval from then until the one more that pushed us over. If so, we<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span> // should do nothing and let the count reset.<a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span> if (LOG.isDebugEnabled()) {<a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> LOG.debug("checkSlowSync triggered but we decided to ignore it; " +<a name="line.1200"></a> |
| <span class="sourceLineNo">1201</span> "count=" + slowSyncCount.get() + ", threshold=" + slowSyncRollThreshold +<a name="line.1201"></a> |
| <span class="sourceLineNo">1202</span> ", elapsedTime=" + elapsedTime + " ms, slowSyncCheckInterval=" +<a name="line.1202"></a> |
| <span class="sourceLineNo">1203</span> slowSyncCheckInterval + " ms");<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span> }<a name="line.1204"></a> |
| <span class="sourceLineNo">1205</span> // Fall through to count reset below<a name="line.1205"></a> |
| <span class="sourceLineNo">1206</span> } else {<a name="line.1206"></a> |
| <span class="sourceLineNo">1207</span> LOG.warn("Requesting log roll because we exceeded slow sync threshold; count=" +<a name="line.1207"></a> |
| <span class="sourceLineNo">1208</span> slowSyncCount.get() + ", threshold=" + slowSyncRollThreshold +<a name="line.1208"></a> |
| <span class="sourceLineNo">1209</span> ", current pipeline: " + Arrays.toString(getPipeline()));<a name="line.1209"></a> |
| <span class="sourceLineNo">1210</span> result = true;<a name="line.1210"></a> |
| <span class="sourceLineNo">1211</span> }<a name="line.1211"></a> |
| <span class="sourceLineNo">1212</span> }<a name="line.1212"></a> |
| <span class="sourceLineNo">1213</span> lastTimeCheckSlowSync = now;<a name="line.1213"></a> |
| <span class="sourceLineNo">1214</span> slowSyncCount.set(0);<a name="line.1214"></a> |
| <span class="sourceLineNo">1215</span> }<a name="line.1215"></a> |
| <span class="sourceLineNo">1216</span> return result;<a name="line.1216"></a> |
| <span class="sourceLineNo">1217</span> }<a name="line.1217"></a> |
| <span class="sourceLineNo">1218</span><a name="line.1218"></a> |
| <span class="sourceLineNo">1219</span> public void checkLogLowReplication(long checkInterval) {<a name="line.1219"></a> |
| <span class="sourceLineNo">1220</span> long now = EnvironmentEdgeManager.currentTime();<a name="line.1220"></a> |
| <span class="sourceLineNo">1221</span> if (now - lastTimeCheckLowReplication < checkInterval) {<a name="line.1221"></a> |
| <span class="sourceLineNo">1222</span> return;<a name="line.1222"></a> |
| <span class="sourceLineNo">1223</span> }<a name="line.1223"></a> |
| <span class="sourceLineNo">1224</span> // Will return immediately if we are in the middle of a WAL log roll currently.<a name="line.1224"></a> |
| <span class="sourceLineNo">1225</span> if (!rollWriterLock.tryLock()) {<a name="line.1225"></a> |
| <span class="sourceLineNo">1226</span> return;<a name="line.1226"></a> |
| <span class="sourceLineNo">1227</span> }<a name="line.1227"></a> |
| <span class="sourceLineNo">1228</span> try {<a name="line.1228"></a> |
| <span class="sourceLineNo">1229</span> lastTimeCheckLowReplication = now;<a name="line.1229"></a> |
| <span class="sourceLineNo">1230</span> if (doCheckLogLowReplication()) {<a name="line.1230"></a> |
| <span class="sourceLineNo">1231</span> requestLogRoll(LOW_REPLICATION);<a name="line.1231"></a> |
| <span class="sourceLineNo">1232</span> }<a name="line.1232"></a> |
| <span class="sourceLineNo">1233</span> } finally {<a name="line.1233"></a> |
| <span class="sourceLineNo">1234</span> rollWriterLock.unlock();<a name="line.1234"></a> |
| <span class="sourceLineNo">1235</span> }<a name="line.1235"></a> |
| <span class="sourceLineNo">1236</span> }<a name="line.1236"></a> |
| <span class="sourceLineNo">1237</span><a name="line.1237"></a> |
| <span class="sourceLineNo">1238</span> /**<a name="line.1238"></a> |
| <span class="sourceLineNo">1239</span> * This method gets the pipeline for the current WAL.<a name="line.1239"></a> |
| <span class="sourceLineNo">1240</span> */<a name="line.1240"></a> |
| <span class="sourceLineNo">1241</span> @VisibleForTesting<a name="line.1241"></a> |
| <span class="sourceLineNo">1242</span> abstract DatanodeInfo[] getPipeline();<a name="line.1242"></a> |
| <span class="sourceLineNo">1243</span><a name="line.1243"></a> |
| <span class="sourceLineNo">1244</span> /**<a name="line.1244"></a> |
| <span class="sourceLineNo">1245</span> * This method gets the datanode replication count for the current WAL.<a name="line.1245"></a> |
| <span class="sourceLineNo">1246</span> */<a name="line.1246"></a> |
| <span class="sourceLineNo">1247</span> @VisibleForTesting<a name="line.1247"></a> |
| <span class="sourceLineNo">1248</span> abstract int getLogReplication();<a name="line.1248"></a> |
| <span class="sourceLineNo">1249</span><a name="line.1249"></a> |
| <span class="sourceLineNo">1250</span> private static void split(final Configuration conf, final Path p) throws IOException {<a name="line.1250"></a> |
| <span class="sourceLineNo">1251</span> FileSystem fs = CommonFSUtils.getWALFileSystem(conf);<a name="line.1251"></a> |
| <span class="sourceLineNo">1252</span> if (!fs.exists(p)) {<a name="line.1252"></a> |
| <span class="sourceLineNo">1253</span> throw new FileNotFoundException(p.toString());<a name="line.1253"></a> |
| <span class="sourceLineNo">1254</span> }<a name="line.1254"></a> |
| <span class="sourceLineNo">1255</span> if (!fs.getFileStatus(p).isDirectory()) {<a name="line.1255"></a> |
| <span class="sourceLineNo">1256</span> throw new IOException(p + " is not a directory");<a name="line.1256"></a> |
| <span class="sourceLineNo">1257</span> }<a name="line.1257"></a> |
| <span class="sourceLineNo">1258</span><a name="line.1258"></a> |
| <span class="sourceLineNo">1259</span> final Path baseDir = CommonFSUtils.getWALRootDir(conf);<a name="line.1259"></a> |
| <span class="sourceLineNo">1260</span> Path archiveDir = new Path(baseDir, HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.1260"></a> |
| <span class="sourceLineNo">1261</span> if (conf.getBoolean(AbstractFSWALProvider.SEPARATE_OLDLOGDIR,<a name="line.1261"></a> |
| <span class="sourceLineNo">1262</span> AbstractFSWALProvider.DEFAULT_SEPARATE_OLDLOGDIR)) {<a name="line.1262"></a> |
| <span class="sourceLineNo">1263</span> archiveDir = new Path(archiveDir, p.getName());<a name="line.1263"></a> |
| <span class="sourceLineNo">1264</span> }<a name="line.1264"></a> |
| <span class="sourceLineNo">1265</span> WALSplitter.split(baseDir, p, archiveDir, fs, conf, WALFactory.getInstance(conf));<a name="line.1265"></a> |
| <span class="sourceLineNo">1266</span> }<a name="line.1266"></a> |
| <span class="sourceLineNo">1267</span><a name="line.1267"></a> |
| <span class="sourceLineNo">1268</span> private static void usage() {<a name="line.1268"></a> |
| <span class="sourceLineNo">1269</span> System.err.println("Usage: AbstractFSWAL <ARGS>");<a name="line.1269"></a> |
| <span class="sourceLineNo">1270</span> System.err.println("Arguments:");<a name="line.1270"></a> |
| <span class="sourceLineNo">1271</span> System.err.println(" --dump Dump textual representation of passed one or more files");<a name="line.1271"></a> |
| <span class="sourceLineNo">1272</span> System.err.println(" For example: " +<a name="line.1272"></a> |
| <span class="sourceLineNo">1273</span> "AbstractFSWAL --dump hdfs://example.com:9000/hbase/WALs/MACHINE/LOGFILE");<a name="line.1273"></a> |
| <span class="sourceLineNo">1274</span> System.err.println(" --split Split the passed directory of WAL logs");<a name="line.1274"></a> |
| <span class="sourceLineNo">1275</span> System.err.println(<a name="line.1275"></a> |
| <span class="sourceLineNo">1276</span> " For example: AbstractFSWAL --split hdfs://example.com:9000/hbase/WALs/DIR");<a name="line.1276"></a> |
| <span class="sourceLineNo">1277</span> }<a name="line.1277"></a> |
| <span class="sourceLineNo">1278</span><a name="line.1278"></a> |
| <span class="sourceLineNo">1279</span> /**<a name="line.1279"></a> |
| <span class="sourceLineNo">1280</span> * Pass one or more log file names and it will either dump out a text version on<a name="line.1280"></a> |
| <span class="sourceLineNo">1281</span> * <code>stdout</code> or split the specified log files.<a name="line.1281"></a> |
| <span class="sourceLineNo">1282</span> */<a name="line.1282"></a> |
| <span class="sourceLineNo">1283</span> public static void main(String[] args) throws IOException {<a name="line.1283"></a> |
| <span class="sourceLineNo">1284</span> if (args.length < 2) {<a name="line.1284"></a> |
| <span class="sourceLineNo">1285</span> usage();<a name="line.1285"></a> |
| <span class="sourceLineNo">1286</span> System.exit(-1);<a name="line.1286"></a> |
| <span class="sourceLineNo">1287</span> }<a name="line.1287"></a> |
| <span class="sourceLineNo">1288</span> // either dump using the WALPrettyPrinter or split, depending on args<a name="line.1288"></a> |
| <span class="sourceLineNo">1289</span> if (args[0].compareTo("--dump") == 0) {<a name="line.1289"></a> |
| <span class="sourceLineNo">1290</span> WALPrettyPrinter.run(Arrays.copyOfRange(args, 1, args.length));<a name="line.1290"></a> |
| <span class="sourceLineNo">1291</span> } else if (args[0].compareTo("--perf") == 0) {<a name="line.1291"></a> |
| <span class="sourceLineNo">1292</span> LOG.error(HBaseMarkers.FATAL, "Please use the WALPerformanceEvaluation tool instead. i.e.:");<a name="line.1292"></a> |
| <span class="sourceLineNo">1293</span> LOG.error(HBaseMarkers.FATAL,<a name="line.1293"></a> |
| <span class="sourceLineNo">1294</span> "\thbase org.apache.hadoop.hbase.wal.WALPerformanceEvaluation --iterations " + args[1]);<a name="line.1294"></a> |
| <span class="sourceLineNo">1295</span> System.exit(-1);<a name="line.1295"></a> |
| <span class="sourceLineNo">1296</span> } else if (args[0].compareTo("--split") == 0) {<a name="line.1296"></a> |
| <span class="sourceLineNo">1297</span> Configuration conf = HBaseConfiguration.create();<a name="line.1297"></a> |
| <span class="sourceLineNo">1298</span> for (int i = 1; i < args.length; i++) {<a name="line.1298"></a> |
| <span class="sourceLineNo">1299</span> try {<a name="line.1299"></a> |
| <span class="sourceLineNo">1300</span> Path logPath = new Path(args[i]);<a name="line.1300"></a> |
| <span class="sourceLineNo">1301</span> CommonFSUtils.setFsDefault(conf, logPath);<a name="line.1301"></a> |
| <span class="sourceLineNo">1302</span> split(conf, logPath);<a name="line.1302"></a> |
| <span class="sourceLineNo">1303</span> } catch (IOException t) {<a name="line.1303"></a> |
| <span class="sourceLineNo">1304</span> t.printStackTrace(System.err);<a name="line.1304"></a> |
| <span class="sourceLineNo">1305</span> System.exit(-1);<a name="line.1305"></a> |
| <span class="sourceLineNo">1306</span> }<a name="line.1306"></a> |
| <span class="sourceLineNo">1307</span> }<a name="line.1307"></a> |
| <span class="sourceLineNo">1308</span> } else {<a name="line.1308"></a> |
| <span class="sourceLineNo">1309</span> usage();<a name="line.1309"></a> |
| <span class="sourceLineNo">1310</span> System.exit(-1);<a name="line.1310"></a> |
| <span class="sourceLineNo">1311</span> }<a name="line.1311"></a> |
| <span class="sourceLineNo">1312</span> }<a name="line.1312"></a> |
| <span class="sourceLineNo">1313</span>}<a name="line.1313"></a> |
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