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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><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver.wal;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><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.util.ArrayList;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.NavigableMap;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.function.Function;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.fs.FileSystem;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.fs.Path;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.Cell;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.regionserver.MultiVersionConcurrencyControl;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.wal.WAL;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.wal.WALKeyImpl;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.slf4j.Logger;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.slf4j.LoggerFactory;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.protobuf.TextFormat;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span>/**<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * Helper methods to ease Region Server integration with the Write Ahead Log (WAL).<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * Note that methods in this class specifically should not require access to anything<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * other than the API found in {@link WAL}. For internal use only.<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> */<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>@InterfaceAudience.Private<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>public class WALUtil {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private static final Logger LOG = LoggerFactory.getLogger(WALUtil.class);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> public static final String WAL_BLOCK_SIZE = "hbase.regionserver.hlog.blocksize";<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private WALUtil() {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> // Shut down construction of this class.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> }<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> * Write the marker that a compaction has succeeded and is about to be committed. This provides<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * info to the HMaster to allow it to recover the compaction if this regionserver dies in the<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * middle. It also prevents the compaction from finishing if this regionserver has already lost<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * its lease on the log.<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> * <p/><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * This write is for internal use only. Not for external client consumption.<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * @param mvcc Used by WAL to get sequence Id for the waledit.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> */<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> public static WALKeyImpl writeCompactionMarker(WAL wal,<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> NavigableMap<byte[], Integer> replicationScope, RegionInfo hri, final CompactionDescriptor c,<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> MultiVersionConcurrencyControl mvcc) throws IOException {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> WALKeyImpl walKey =<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> writeMarker(wal, replicationScope, hri, WALEdit.createCompaction(hri, c), mvcc, null);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> if (LOG.isTraceEnabled()) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> LOG.trace("Appended compaction marker " + TextFormat.shortDebugString(c));<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> return walKey;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> }<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> /**<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * Write a flush marker indicating a start / abort or a complete of a region flush<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * <p/><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * This write is for internal use only. Not for external client consumption.<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> */<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> public static WALKeyImpl writeFlushMarker(WAL wal, NavigableMap<byte[], Integer> replicationScope,<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> RegionInfo hri, final FlushDescriptor f, boolean sync, MultiVersionConcurrencyControl mvcc)<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> throws IOException {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> WALKeyImpl walKey = doFullMarkerAppendTransaction(wal, replicationScope, hri,<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> WALEdit.createFlushWALEdit(hri, f), mvcc, null, sync);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> if (LOG.isTraceEnabled()) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> LOG.trace("Appended flush marker " + TextFormat.shortDebugString(f));<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> return walKey;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> /**<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * Write a region open marker indicating that the region is opened. This write is for internal use<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * only. Not for external client consumption.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public static WALKeyImpl writeRegionEventMarker(WAL wal,<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> NavigableMap<byte[], Integer> replicationScope, RegionInfo hri, RegionEventDescriptor r,<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> MultiVersionConcurrencyControl mvcc) throws IOException {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> WALKeyImpl walKey =<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> writeMarker(wal, replicationScope, hri, WALEdit.createRegionEventWALEdit(hri, r), mvcc, null);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> if (LOG.isTraceEnabled()) {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> LOG.trace("Appended region event marker " + TextFormat.shortDebugString(r));<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> return walKey;<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> * Write a log marker that a bulk load has succeeded and is about to be committed.<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * This write is for internal use only. Not for external client consumption.<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * @param wal The log to write into.<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * @param replicationScope The replication scope of the families in the HRegion<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * @param hri A description of the region in the table that we are bulk loading into.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * @param desc A protocol buffers based description of the client's bulk loading request<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * @return walKey with sequenceid filled out for this bulk load marker<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> * @throws IOException We will throw an IOException if we can not append to the HLog.<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> */<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> public static WALKeyImpl writeBulkLoadMarkerAndSync(final WAL wal,<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> final NavigableMap<byte[], Integer> replicationScope, final RegionInfo hri,<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> final WALProtos.BulkLoadDescriptor desc, final MultiVersionConcurrencyControl mvcc)<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> throws IOException {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> WALKeyImpl walKey = writeMarker(wal, replicationScope, hri,<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> WALEdit.createBulkLoadEvent(hri, desc), mvcc, null);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (LOG.isTraceEnabled()) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> LOG.trace("Appended Bulk Load marker " + TextFormat.shortDebugString(desc));<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> return walKey;<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> private static WALKeyImpl writeMarker(final WAL wal,<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> final NavigableMap<byte[], Integer> replicationScope, final RegionInfo hri, final WALEdit edit,<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> final MultiVersionConcurrencyControl mvcc, final Map<String, byte[]> extendedAttributes)<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> throws IOException {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // If sync == true in below, then timeout is not used; safe to pass UNSPECIFIED_TIMEOUT<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> return doFullMarkerAppendTransaction(wal, replicationScope, hri, edit, mvcc, extendedAttributes,<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> true);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> /**<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> * A 'full' WAL transaction involves starting an mvcc transaction followed by an append, an<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * optional sync, and then a call to complete the mvcc transaction. This method does it all. Good<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> * for case of adding a single edit or marker to the WAL.<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> * <p/><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> * This write is for internal use only. Not for external client consumption.<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * @return WALKeyImpl that was added to the WAL.<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> */<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> private static WALKeyImpl doFullMarkerAppendTransaction(final WAL wal,<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> final NavigableMap<byte[], Integer> replicationScope, final RegionInfo hri, final WALEdit edit,<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> final MultiVersionConcurrencyControl mvcc,<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> final Map<String, byte[]> extendedAttributes, final boolean sync) throws IOException {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // TODO: Pass in current time to use?<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> WALKeyImpl walKey = new WALKeyImpl(hri.getEncodedNameAsBytes(), hri.getTable(),<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> System.currentTimeMillis(), mvcc, replicationScope, extendedAttributes);<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> long trx = MultiVersionConcurrencyControl.NONE;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> try {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> trx = wal.appendMarker(hri, walKey, edit);<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> if (sync) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> wal.sync(trx);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> // Call complete only here because these are markers only. They are not for clients to read.<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> mvcc.complete(walKey.getWriteEntry());<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> } catch (IOException ioe) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (walKey.getWriteEntry() != null) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> mvcc.complete(walKey.getWriteEntry());<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> }<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> throw ioe;<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return walKey;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<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> * Blocksize returned here is 2x the default HDFS blocksize unless explicitly set in<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> * Configuration. Works in tandem with hbase.regionserver.logroll.multiplier. See comment in<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> * AbstractFSWAL in Constructor where we set blocksize and logrollsize for why.<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> * @return Blocksize to use writing WALs.<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> */<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> public static long getWALBlockSize(Configuration conf, FileSystem fs, Path dir)<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> throws IOException {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> return getWALBlockSize(conf, fs, dir, false);<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<a name="line.185"></a> |
| <span class="sourceLineNo">186</span><a name="line.186"></a> |
| <span class="sourceLineNo">187</span> /**<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> * Public because of FSHLog. Should be package-private<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> * @param isRecoverEdits the created writer is for recovered edits or WAL.<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * For recovered edits, it is true and for WAL it is false.<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> */<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> public static long getWALBlockSize(Configuration conf, FileSystem fs, Path dir,<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> boolean isRecoverEdits) throws IOException {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> long defaultBlockSize = CommonFSUtils.getDefaultBlockSize(fs, dir) * 2;<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> if (isRecoverEdits) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> return conf.getLong("hbase.regionserver.recoverededits.blocksize", defaultBlockSize);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> return conf.getLong(WAL_BLOCK_SIZE, defaultBlockSize);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> public static void filterCells(WALEdit edit, Function<Cell, Cell> mapper) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> ArrayList<Cell> cells = edit.getCells();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> int size = cells.size();<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> int newSize = 0;<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> for (int i = 0; i < size; i++) {<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> Cell cell = mapper.apply(cells.get(i));<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> if (cell != null) {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> cells.set(newSize, cell);<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> newSize++;<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> for (int i = size - 1; i >= newSize; i--) {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> cells.remove(i);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> if (newSize < size / 2) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> cells.trimToSize();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span>}<a name="line.219"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |