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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.wal;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.Closeable;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.net.ConnectException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Iterator;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.List;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Map;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Map.Entry;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.concurrent.ConcurrentMap;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.conf.Configuration;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.fs.Path;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.Abortable;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HConstants;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.wal.FailedLogCloseException;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.wal.WALClosedException;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.slf4j.Logger;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.slf4j.LoggerFactory;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span>/**<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * Runs periodically to determine if the WAL should be rolled.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * <p/><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * NOTE: This class extends Thread rather than Chore because the sleep time can be interrupted when<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * there is something to do, rather than the Chore sleep time which is invariant.<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * <p/><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * The {@link #scheduleFlush(String, List)} is abstract here, as sometimes we hold a region without<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * a region server but we still want to roll its WAL.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * <p/><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * TODO: change to a pool of threads<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> */<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>@InterfaceAudience.Private<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>public abstract class AbstractWALRoller<T extends Abortable> extends Thread implements Closeable {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private static final Logger LOG = LoggerFactory.getLogger(AbstractWALRoller.class);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> protected static final String WAL_ROLL_PERIOD_KEY = "hbase.regionserver.logroll.period";<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> /**<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * Configure for the timeout of log rolling retry.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> public static final String WAL_ROLL_WAIT_TIMEOUT = "hbase.regionserver.logroll.wait.timeout.ms";<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> public static final long DEFAULT_WAL_ROLL_WAIT_TIMEOUT = 30000;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> /**<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * Configure for the max count of log rolling retry. The real retry count is also limited by the<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * timeout of log rolling via {@link #WAL_ROLL_WAIT_TIMEOUT}<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> */<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> protected static final String WAL_ROLL_RETRIES = "hbase.regionserver.logroll.retries";<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> protected final ConcurrentMap<WAL, RollController> wals = new ConcurrentHashMap<>();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> protected final T abortable;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> // Period to roll log.<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private final long rollPeriod;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> private final int threadWakeFrequency;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> // The interval to check low replication on hlog's pipeline<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> private final long checkLowReplicationInterval;<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> // Wait period for roll log<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private final long rollWaitTimeout;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> // Max retry for roll log<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> private final int maxRollRetry;<a name="line.84"></a> |
| <span class="sourceLineNo">085</span><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> private volatile boolean running = true;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> public void addWAL(WAL wal) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> // check without lock first<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (wals.containsKey(wal)) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> return;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // this is to avoid race between addWAL and requestRollAll.<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> synchronized (this) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> if (wals.putIfAbsent(wal, new RollController(wal)) == null) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> wal.registerWALActionsListener(new WALActionsListener() {<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> @Override<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public void logRollRequested(WALActionsListener.RollRequestReason reason) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> // TODO logs will contend with each other here, replace with e.g. DelayedQueue<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> synchronized (AbstractWALRoller.this) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> RollController controller = wals.computeIfAbsent(wal, rc -> new RollController(wal));<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> controller.requestRoll();<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> AbstractWALRoller.this.notifyAll();<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> @Override<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public void postLogArchive(Path oldPath, Path newPath) throws IOException {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> afterWALArchive(oldPath, newPath);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> });<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> }<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> public void requestRollAll() {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> synchronized (this) {<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> for (RollController controller : wals.values()) {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> controller.requestRoll();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> notifyAll();<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> protected AbstractWALRoller(String name, Configuration conf, T abortable) {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> super(name);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> this.abortable = abortable;<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> this.rollPeriod = conf.getLong(WAL_ROLL_PERIOD_KEY, 3600000);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> this.threadWakeFrequency = conf.getInt(HConstants.THREAD_WAKE_FREQUENCY, 10 * 1000);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> this.checkLowReplicationInterval =<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> conf.getLong("hbase.regionserver.hlog.check.lowreplication.interval", 30 * 1000);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> this.rollWaitTimeout = conf.getLong(WAL_ROLL_WAIT_TIMEOUT, DEFAULT_WAL_ROLL_WAIT_TIMEOUT);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> // retry rolling does not have to be the default behavior, so the default value is 0 here<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> this.maxRollRetry = conf.getInt(WAL_ROLL_RETRIES, 0);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span><a name="line.136"></a> |
| <span class="sourceLineNo">137</span> /**<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * we need to check low replication in period, see HBASE-18132<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> */<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> private void checkLowReplication(long now) {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> try {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> for (Entry<WAL, RollController> entry : wals.entrySet()) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> WAL wal = entry.getKey();<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> boolean needRollAlready = entry.getValue().needsRoll(now);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (needRollAlready || !(wal instanceof AbstractFSWAL)) {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> continue;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> ((AbstractFSWAL<?>) wal).checkLogLowReplication(checkLowReplicationInterval);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> } catch (Throwable e) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> LOG.warn("Failed checking low replication", e);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> private void abort(String reason, Throwable cause) {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // close all WALs before calling abort on RS.<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> // This is because AsyncFSWAL replies on us for rolling a new writer to make progress, and if we<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> // failed, AsyncFSWAL may be stuck, so we need to close it to let the upper layer know that it<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> // is already broken.<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> for (WAL wal : wals.keySet()) {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> // shutdown rather than close here since we are going to abort the RS and the wals need to be<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> // split when recovery<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> try {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> wal.shutdown();<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> } catch (IOException e) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> LOG.warn("Failed to shutdown wal", e);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> abortable.abort(reason, cause);<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> @Override<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> public void run() {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> while (running) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> long now = EnvironmentEdgeManager.currentTime();<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> checkLowReplication(now);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> synchronized (this) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> if (wals.values().stream().noneMatch(rc -> rc.needsRoll(now))) {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> try {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> wait(this.threadWakeFrequency);<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> } catch (InterruptedException e) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> // restore the interrupt state<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> Thread.currentThread().interrupt();<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> // goto the beginning to check whether again whether we should fall through to roll<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // several WALs, and also check whether we should quit.<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> continue;<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> }<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> try {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> for (Iterator<Entry<WAL, RollController>> iter = wals.entrySet().iterator(); iter<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> .hasNext();) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> Entry<WAL, RollController> entry = iter.next();<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> WAL wal = entry.getKey();<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> RollController controller = entry.getValue();<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> if (controller.isRollRequested()) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> // WAL roll requested, fall through<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> LOG.debug("WAL {} roll requested", wal);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> } else if (controller.needsPeriodicRoll(now)) {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> // Time for periodic roll, fall through<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> LOG.debug("WAL {} roll period {} ms elapsed", wal, this.rollPeriod);<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> } else {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> continue;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> }<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> Map<byte[], List<byte[]>> regionsToFlush = null;<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> int nAttempts = 0;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> long startWaiting = EnvironmentEdgeManager.currentTime();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> do {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> try {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> // Force the roll if the logroll.period is elapsed or if a roll was requested.<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> // The returned value is an collection of actual region and family names.<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> regionsToFlush = controller.rollWal(EnvironmentEdgeManager.currentTime());<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> break;<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> } catch (IOException ioe) {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> if (ioe instanceof WALClosedException) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> LOG.warn("WAL has been closed. Skipping rolling of writer and just remove it", ioe);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> iter.remove();<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> break;<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> long waitingTime = EnvironmentEdgeManager.currentTime() - startWaiting;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> if (waitingTime < rollWaitTimeout && nAttempts < maxRollRetry) {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> nAttempts++;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> LOG.warn("Retry to roll log, nAttempts={}, waiting time={}ms, sleeping 1s to retry,"<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> + " last exception", nAttempts, waitingTime, ioe);<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> sleep(1000);<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> } else {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> LOG.error("Roll wal failed and waiting timeout, will not retry", ioe);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> throw ioe;<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> }<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> } while (EnvironmentEdgeManager.currentTime() - startWaiting < rollWaitTimeout);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> if (regionsToFlush != null) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> for (Map.Entry<byte[], List<byte[]>> r : regionsToFlush.entrySet()) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> scheduleFlush(Bytes.toString(r.getKey()), r.getValue());<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> }<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> } catch (FailedLogCloseException | ConnectException e) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> abort("Failed log close in log roller", e);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> } catch (IOException ex) {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> // Abort if we get here. We probably won't recover an IOE. HBASE-1132<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> abort("IOE in log roller",<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> ex instanceof RemoteException ? ((RemoteException) ex).unwrapRemoteException() : ex);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> } catch (Exception ex) {<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> LOG.error("Log rolling failed", ex);<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> abort("Log rolling failed", ex);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> LOG.info("LogRoller exiting.");<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span><a name="line.251"></a> |
| <span class="sourceLineNo">252</span> protected void afterWALArchive(Path oldPath, Path newPath) {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span> /**<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * @param encodedRegionName Encoded name of region to flush.<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * @param families stores of region to flush.<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> */<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> protected abstract void scheduleFlush(String encodedRegionName, List<byte[]> families);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span><a name="line.260"></a> |
| <span class="sourceLineNo">261</span> private boolean isWaiting() {<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> Thread.State state = getState();<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> return state == Thread.State.WAITING || state == Thread.State.TIMED_WAITING;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span><a name="line.265"></a> |
| <span class="sourceLineNo">266</span> /** Returns true if all WAL roll finished */<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> public boolean walRollFinished() {<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // TODO add a status field of roll in RollController<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> return wals.values().stream()<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> .noneMatch(rc -> rc.needsRoll(EnvironmentEdgeManager.currentTime())) && isWaiting();<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> }<a name="line.271"></a> |
| <span class="sourceLineNo">272</span><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> /**<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * Wait until all wals have been rolled after calling {@link #requestRollAll()}.<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> */<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> public void waitUntilWalRollFinished() throws InterruptedException {<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> while (!walRollFinished()) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> Thread.sleep(100);<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> }<a name="line.280"></a> |
| <span class="sourceLineNo">281</span><a name="line.281"></a> |
| <span class="sourceLineNo">282</span> @Override<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> public void close() {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> running = false;<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> interrupt();<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> /**<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> * Independently control the roll of each wal. When use multiwal, can avoid all wal roll together.<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> * see HBASE-24665 for detail<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> */<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> protected class RollController {<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> private final WAL wal;<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> private final AtomicBoolean rollRequest;<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> private long lastRollTime;<a name="line.295"></a> |
| <span class="sourceLineNo">296</span><a name="line.296"></a> |
| <span class="sourceLineNo">297</span> RollController(WAL wal) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> this.wal = wal;<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> this.rollRequest = new AtomicBoolean(false);<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> this.lastRollTime = EnvironmentEdgeManager.currentTime();<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> }<a name="line.301"></a> |
| <span class="sourceLineNo">302</span><a name="line.302"></a> |
| <span class="sourceLineNo">303</span> public void requestRoll() {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> this.rollRequest.set(true);<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> public Map<byte[], List<byte[]>> rollWal(long now) throws IOException {<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> this.lastRollTime = now;<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> // reset the flag in front to avoid missing roll request before we return from rollWriter.<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> this.rollRequest.set(false);<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> return wal.rollWriter(true);<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> }<a name="line.312"></a> |
| <span class="sourceLineNo">313</span><a name="line.313"></a> |
| <span class="sourceLineNo">314</span> public boolean isRollRequested() {<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> return rollRequest.get();<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> }<a name="line.316"></a> |
| <span class="sourceLineNo">317</span><a name="line.317"></a> |
| <span class="sourceLineNo">318</span> public boolean needsPeriodicRoll(long now) {<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> return (now - this.lastRollTime) > rollPeriod;<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> public boolean needsRoll(long now) {<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> return isRollRequested() || needsPeriodicRoll(now);<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> }<a name="line.325"></a> |
| <span class="sourceLineNo">326</span>}<a name="line.326"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
