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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.wal;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.Closeable;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.IOException;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.net.ConnectException;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Iterator;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.List;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Map;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.Map.Entry;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.concurrent.ConcurrentHashMap;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.concurrent.ConcurrentMap;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.concurrent.atomic.AtomicBoolean;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.Abortable;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.regionserver.wal.FailedLogCloseException;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.regionserver.wal.WALClosedException;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.ipc.RemoteException;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.slf4j.Logger;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45">/**</span> |
| <span class="source-line-no">046</span><span id="line-46"> * Runs periodically to determine if the WAL should be rolled.</span> |
| <span class="source-line-no">047</span><span id="line-47"> * <p/></span> |
| <span class="source-line-no">048</span><span id="line-48"> * NOTE: This class extends Thread rather than Chore because the sleep time can be interrupted when</span> |
| <span class="source-line-no">049</span><span id="line-49"> * there is something to do, rather than the Chore sleep time which is invariant.</span> |
| <span class="source-line-no">050</span><span id="line-50"> * <p/></span> |
| <span class="source-line-no">051</span><span id="line-51"> * The {@link #scheduleFlush(String, List)} is abstract here, as sometimes we hold a region without</span> |
| <span class="source-line-no">052</span><span id="line-52"> * a region server but we still want to roll its WAL.</span> |
| <span class="source-line-no">053</span><span id="line-53"> * <p/></span> |
| <span class="source-line-no">054</span><span id="line-54"> * TODO: change to a pool of threads</span> |
| <span class="source-line-no">055</span><span id="line-55"> */</span> |
| <span class="source-line-no">056</span><span id="line-56">@InterfaceAudience.Private</span> |
| <span class="source-line-no">057</span><span id="line-57">public abstract class AbstractWALRoller<T extends Abortable> extends Thread implements Closeable {</span> |
| <span class="source-line-no">058</span><span id="line-58"> private static final Logger LOG = LoggerFactory.getLogger(AbstractWALRoller.class);</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> protected static final String WAL_ROLL_PERIOD_KEY = "hbase.regionserver.logroll.period";</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> /**</span> |
| <span class="source-line-no">063</span><span id="line-63"> * Configure for the timeout of log rolling retry.</span> |
| <span class="source-line-no">064</span><span id="line-64"> */</span> |
| <span class="source-line-no">065</span><span id="line-65"> public static final String WAL_ROLL_WAIT_TIMEOUT = "hbase.regionserver.logroll.wait.timeout.ms";</span> |
| <span class="source-line-no">066</span><span id="line-66"> public static final long DEFAULT_WAL_ROLL_WAIT_TIMEOUT = 30000;</span> |
| <span class="source-line-no">067</span><span id="line-67"></span> |
| <span class="source-line-no">068</span><span id="line-68"> /**</span> |
| <span class="source-line-no">069</span><span id="line-69"> * Configure for the max count of log rolling retry. The real retry count is also limited by the</span> |
| <span class="source-line-no">070</span><span id="line-70"> * timeout of log rolling via {@link #WAL_ROLL_WAIT_TIMEOUT}</span> |
| <span class="source-line-no">071</span><span id="line-71"> */</span> |
| <span class="source-line-no">072</span><span id="line-72"> protected static final String WAL_ROLL_RETRIES = "hbase.regionserver.logroll.retries";</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> protected final ConcurrentMap<WAL, RollController> wals = new ConcurrentHashMap<>();</span> |
| <span class="source-line-no">075</span><span id="line-75"> protected final T abortable;</span> |
| <span class="source-line-no">076</span><span id="line-76"> // Period to roll log.</span> |
| <span class="source-line-no">077</span><span id="line-77"> private final long rollPeriod;</span> |
| <span class="source-line-no">078</span><span id="line-78"> private final int threadWakeFrequency;</span> |
| <span class="source-line-no">079</span><span id="line-79"> // The interval to check low replication on hlog's pipeline</span> |
| <span class="source-line-no">080</span><span id="line-80"> private final long checkLowReplicationInterval;</span> |
| <span class="source-line-no">081</span><span id="line-81"> // Wait period for roll log</span> |
| <span class="source-line-no">082</span><span id="line-82"> private final long rollWaitTimeout;</span> |
| <span class="source-line-no">083</span><span id="line-83"> // Max retry for roll log</span> |
| <span class="source-line-no">084</span><span id="line-84"> private final int maxRollRetry;</span> |
| <span class="source-line-no">085</span><span id="line-85"></span> |
| <span class="source-line-no">086</span><span id="line-86"> private volatile boolean running = true;</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> public void addWAL(WAL wal) {</span> |
| <span class="source-line-no">089</span><span id="line-89"> // check without lock first</span> |
| <span class="source-line-no">090</span><span id="line-90"> if (wals.containsKey(wal)) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> return;</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> // this is to avoid race between addWAL and requestRollAll.</span> |
| <span class="source-line-no">094</span><span id="line-94"> synchronized (this) {</span> |
| <span class="source-line-no">095</span><span id="line-95"> if (wals.putIfAbsent(wal, new RollController(wal)) == null) {</span> |
| <span class="source-line-no">096</span><span id="line-96"> wal.registerWALActionsListener(new WALActionsListener() {</span> |
| <span class="source-line-no">097</span><span id="line-97"> @Override</span> |
| <span class="source-line-no">098</span><span id="line-98"> public void logRollRequested(WALActionsListener.RollRequestReason reason) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> // TODO logs will contend with each other here, replace with e.g. DelayedQueue</span> |
| <span class="source-line-no">100</span><span id="line-100"> synchronized (AbstractWALRoller.this) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> RollController controller = wals.computeIfAbsent(wal, rc -> new RollController(wal));</span> |
| <span class="source-line-no">102</span><span id="line-102"> controller.requestRoll();</span> |
| <span class="source-line-no">103</span><span id="line-103"> AbstractWALRoller.this.notifyAll();</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> @Override</span> |
| <span class="source-line-no">108</span><span id="line-108"> public void postLogArchive(Path oldPath, Path newPath) throws IOException {</span> |
| <span class="source-line-no">109</span><span id="line-109"> afterWALArchive(oldPath, newPath);</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"> });</span> |
| <span class="source-line-no">112</span><span id="line-112"> }</span> |
| <span class="source-line-no">113</span><span id="line-113"> }</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> public void requestRollAll() {</span> |
| <span class="source-line-no">117</span><span id="line-117"> synchronized (this) {</span> |
| <span class="source-line-no">118</span><span id="line-118"> for (RollController controller : wals.values()) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> controller.requestRoll();</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"> notifyAll();</span> |
| <span class="source-line-no">122</span><span id="line-122"> }</span> |
| <span class="source-line-no">123</span><span id="line-123"> }</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> protected AbstractWALRoller(String name, Configuration conf, T abortable) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> super(name);</span> |
| <span class="source-line-no">127</span><span id="line-127"> this.abortable = abortable;</span> |
| <span class="source-line-no">128</span><span id="line-128"> this.rollPeriod = conf.getLong(WAL_ROLL_PERIOD_KEY, 3600000);</span> |
| <span class="source-line-no">129</span><span id="line-129"> this.threadWakeFrequency = conf.getInt(HConstants.THREAD_WAKE_FREQUENCY, 10 * 1000);</span> |
| <span class="source-line-no">130</span><span id="line-130"> this.checkLowReplicationInterval =</span> |
| <span class="source-line-no">131</span><span id="line-131"> conf.getLong("hbase.regionserver.hlog.check.lowreplication.interval", 30 * 1000);</span> |
| <span class="source-line-no">132</span><span id="line-132"> this.rollWaitTimeout = conf.getLong(WAL_ROLL_WAIT_TIMEOUT, DEFAULT_WAL_ROLL_WAIT_TIMEOUT);</span> |
| <span class="source-line-no">133</span><span id="line-133"> // retry rolling does not have to be the default behavior, so the default value is 0 here</span> |
| <span class="source-line-no">134</span><span id="line-134"> this.maxRollRetry = conf.getInt(WAL_ROLL_RETRIES, 0);</span> |
| <span class="source-line-no">135</span><span id="line-135"> }</span> |
| <span class="source-line-no">136</span><span id="line-136"></span> |
| <span class="source-line-no">137</span><span id="line-137"> /**</span> |
| <span class="source-line-no">138</span><span id="line-138"> * we need to check low replication in period, see HBASE-18132</span> |
| <span class="source-line-no">139</span><span id="line-139"> */</span> |
| <span class="source-line-no">140</span><span id="line-140"> private void checkLowReplication(long now) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> try {</span> |
| <span class="source-line-no">142</span><span id="line-142"> for (Entry<WAL, RollController> entry : wals.entrySet()) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> WAL wal = entry.getKey();</span> |
| <span class="source-line-no">144</span><span id="line-144"> boolean needRollAlready = entry.getValue().needsRoll(now);</span> |
| <span class="source-line-no">145</span><span id="line-145"> if (needRollAlready || !(wal instanceof AbstractFSWAL)) {</span> |
| <span class="source-line-no">146</span><span id="line-146"> continue;</span> |
| <span class="source-line-no">147</span><span id="line-147"> }</span> |
| <span class="source-line-no">148</span><span id="line-148"> ((AbstractFSWAL<?>) wal).checkLogLowReplication(checkLowReplicationInterval);</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</span> |
| <span class="source-line-no">150</span><span id="line-150"> } catch (Throwable e) {</span> |
| <span class="source-line-no">151</span><span id="line-151"> LOG.warn("Failed checking low replication", e);</span> |
| <span class="source-line-no">152</span><span id="line-152"> }</span> |
| <span class="source-line-no">153</span><span id="line-153"> }</span> |
| <span class="source-line-no">154</span><span id="line-154"></span> |
| <span class="source-line-no">155</span><span id="line-155"> private void abort(String reason, Throwable cause) {</span> |
| <span class="source-line-no">156</span><span id="line-156"> // close all WALs before calling abort on RS.</span> |
| <span class="source-line-no">157</span><span id="line-157"> // This is because AsyncFSWAL replies on us for rolling a new writer to make progress, and if we</span> |
| <span class="source-line-no">158</span><span id="line-158"> // failed, AsyncFSWAL may be stuck, so we need to close it to let the upper layer know that it</span> |
| <span class="source-line-no">159</span><span id="line-159"> // is already broken.</span> |
| <span class="source-line-no">160</span><span id="line-160"> for (WAL wal : wals.keySet()) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> // shutdown rather than close here since we are going to abort the RS and the wals need to be</span> |
| <span class="source-line-no">162</span><span id="line-162"> // split when recovery</span> |
| <span class="source-line-no">163</span><span id="line-163"> try {</span> |
| <span class="source-line-no">164</span><span id="line-164"> wal.shutdown();</span> |
| <span class="source-line-no">165</span><span id="line-165"> } catch (IOException e) {</span> |
| <span class="source-line-no">166</span><span id="line-166"> LOG.warn("Failed to shutdown wal", e);</span> |
| <span class="source-line-no">167</span><span id="line-167"> }</span> |
| <span class="source-line-no">168</span><span id="line-168"> }</span> |
| <span class="source-line-no">169</span><span id="line-169"> abortable.abort(reason, cause);</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171"></span> |
| <span class="source-line-no">172</span><span id="line-172"> @Override</span> |
| <span class="source-line-no">173</span><span id="line-173"> public void run() {</span> |
| <span class="source-line-no">174</span><span id="line-174"> while (running) {</span> |
| <span class="source-line-no">175</span><span id="line-175"> long now = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">176</span><span id="line-176"> checkLowReplication(now);</span> |
| <span class="source-line-no">177</span><span id="line-177"> synchronized (this) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> if (wals.values().stream().noneMatch(rc -> rc.needsRoll(now))) {</span> |
| <span class="source-line-no">179</span><span id="line-179"> try {</span> |
| <span class="source-line-no">180</span><span id="line-180"> wait(this.threadWakeFrequency);</span> |
| <span class="source-line-no">181</span><span id="line-181"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">182</span><span id="line-182"> // restore the interrupt state</span> |
| <span class="source-line-no">183</span><span id="line-183"> Thread.currentThread().interrupt();</span> |
| <span class="source-line-no">184</span><span id="line-184"> }</span> |
| <span class="source-line-no">185</span><span id="line-185"> // goto the beginning to check whether again whether we should fall through to roll</span> |
| <span class="source-line-no">186</span><span id="line-186"> // several WALs, and also check whether we should quit.</span> |
| <span class="source-line-no">187</span><span id="line-187"> continue;</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"> }</span> |
| <span class="source-line-no">190</span><span id="line-190"> try {</span> |
| <span class="source-line-no">191</span><span id="line-191"> for (Iterator<Entry<WAL, RollController>> iter = wals.entrySet().iterator(); iter</span> |
| <span class="source-line-no">192</span><span id="line-192"> .hasNext();) {</span> |
| <span class="source-line-no">193</span><span id="line-193"> Entry<WAL, RollController> entry = iter.next();</span> |
| <span class="source-line-no">194</span><span id="line-194"> WAL wal = entry.getKey();</span> |
| <span class="source-line-no">195</span><span id="line-195"> RollController controller = entry.getValue();</span> |
| <span class="source-line-no">196</span><span id="line-196"> if (controller.isRollRequested()) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> // WAL roll requested, fall through</span> |
| <span class="source-line-no">198</span><span id="line-198"> LOG.debug("WAL {} roll requested", wal);</span> |
| <span class="source-line-no">199</span><span id="line-199"> } else if (controller.needsPeriodicRoll(now)) {</span> |
| <span class="source-line-no">200</span><span id="line-200"> // Time for periodic roll, fall through</span> |
| <span class="source-line-no">201</span><span id="line-201"> LOG.debug("WAL {} roll period {} ms elapsed", wal, this.rollPeriod);</span> |
| <span class="source-line-no">202</span><span id="line-202"> } else {</span> |
| <span class="source-line-no">203</span><span id="line-203"> continue;</span> |
| <span class="source-line-no">204</span><span id="line-204"> }</span> |
| <span class="source-line-no">205</span><span id="line-205"> Map<byte[], List<byte[]>> regionsToFlush = null;</span> |
| <span class="source-line-no">206</span><span id="line-206"> int nAttempts = 0;</span> |
| <span class="source-line-no">207</span><span id="line-207"> long startWaiting = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">208</span><span id="line-208"> do {</span> |
| <span class="source-line-no">209</span><span id="line-209"> try {</span> |
| <span class="source-line-no">210</span><span id="line-210"> // Force the roll if the logroll.period is elapsed or if a roll was requested.</span> |
| <span class="source-line-no">211</span><span id="line-211"> // The returned value is an collection of actual region and family names.</span> |
| <span class="source-line-no">212</span><span id="line-212"> regionsToFlush = controller.rollWal(EnvironmentEdgeManager.currentTime());</span> |
| <span class="source-line-no">213</span><span id="line-213"> break;</span> |
| <span class="source-line-no">214</span><span id="line-214"> } catch (IOException ioe) {</span> |
| <span class="source-line-no">215</span><span id="line-215"> if (ioe instanceof WALClosedException) {</span> |
| <span class="source-line-no">216</span><span id="line-216"> LOG.warn("WAL has been closed. Skipping rolling of writer and just remove it", ioe);</span> |
| <span class="source-line-no">217</span><span id="line-217"> iter.remove();</span> |
| <span class="source-line-no">218</span><span id="line-218"> break;</span> |
| <span class="source-line-no">219</span><span id="line-219"> }</span> |
| <span class="source-line-no">220</span><span id="line-220"> long waitingTime = EnvironmentEdgeManager.currentTime() - startWaiting;</span> |
| <span class="source-line-no">221</span><span id="line-221"> if (waitingTime < rollWaitTimeout && nAttempts < maxRollRetry) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> nAttempts++;</span> |
| <span class="source-line-no">223</span><span id="line-223"> LOG.warn("Retry to roll log, nAttempts={}, waiting time={}ms, sleeping 1s to retry,"</span> |
| <span class="source-line-no">224</span><span id="line-224"> + " last exception", nAttempts, waitingTime, ioe);</span> |
| <span class="source-line-no">225</span><span id="line-225"> sleep(1000);</span> |
| <span class="source-line-no">226</span><span id="line-226"> } else {</span> |
| <span class="source-line-no">227</span><span id="line-227"> LOG.error("Roll wal failed and waiting timeout, will not retry", ioe);</span> |
| <span class="source-line-no">228</span><span id="line-228"> throw ioe;</span> |
| <span class="source-line-no">229</span><span id="line-229"> }</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"> } while (EnvironmentEdgeManager.currentTime() - startWaiting < rollWaitTimeout);</span> |
| <span class="source-line-no">232</span><span id="line-232"> if (regionsToFlush != null) {</span> |
| <span class="source-line-no">233</span><span id="line-233"> for (Map.Entry<byte[], List<byte[]>> r : regionsToFlush.entrySet()) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> scheduleFlush(Bytes.toString(r.getKey()), r.getValue());</span> |
| <span class="source-line-no">235</span><span id="line-235"> }</span> |
| <span class="source-line-no">236</span><span id="line-236"> }</span> |
| <span class="source-line-no">237</span><span id="line-237"> }</span> |
| <span class="source-line-no">238</span><span id="line-238"> } catch (FailedLogCloseException | ConnectException e) {</span> |
| <span class="source-line-no">239</span><span id="line-239"> abort("Failed log close in log roller", e);</span> |
| <span class="source-line-no">240</span><span id="line-240"> } catch (IOException ex) {</span> |
| <span class="source-line-no">241</span><span id="line-241"> // Abort if we get here. We probably won't recover an IOE. HBASE-1132</span> |
| <span class="source-line-no">242</span><span id="line-242"> abort("IOE in log roller",</span> |
| <span class="source-line-no">243</span><span id="line-243"> ex instanceof RemoteException ? ((RemoteException) ex).unwrapRemoteException() : ex);</span> |
| <span class="source-line-no">244</span><span id="line-244"> } catch (Exception ex) {</span> |
| <span class="source-line-no">245</span><span id="line-245"> LOG.error("Log rolling failed", ex);</span> |
| <span class="source-line-no">246</span><span id="line-246"> abort("Log rolling failed", ex);</span> |
| <span class="source-line-no">247</span><span id="line-247"> }</span> |
| <span class="source-line-no">248</span><span id="line-248"> }</span> |
| <span class="source-line-no">249</span><span id="line-249"> LOG.info("LogRoller exiting.");</span> |
| <span class="source-line-no">250</span><span id="line-250"> }</span> |
| <span class="source-line-no">251</span><span id="line-251"></span> |
| <span class="source-line-no">252</span><span id="line-252"> protected void afterWALArchive(Path oldPath, Path newPath) {</span> |
| <span class="source-line-no">253</span><span id="line-253"> }</span> |
| <span class="source-line-no">254</span><span id="line-254"></span> |
| <span class="source-line-no">255</span><span id="line-255"> /**</span> |
| <span class="source-line-no">256</span><span id="line-256"> * @param encodedRegionName Encoded name of region to flush.</span> |
| <span class="source-line-no">257</span><span id="line-257"> * @param families stores of region to flush.</span> |
| <span class="source-line-no">258</span><span id="line-258"> */</span> |
| <span class="source-line-no">259</span><span id="line-259"> protected abstract void scheduleFlush(String encodedRegionName, List<byte[]> families);</span> |
| <span class="source-line-no">260</span><span id="line-260"></span> |
| <span class="source-line-no">261</span><span id="line-261"> private boolean isWaiting() {</span> |
| <span class="source-line-no">262</span><span id="line-262"> Thread.State state = getState();</span> |
| <span class="source-line-no">263</span><span id="line-263"> return state == Thread.State.WAITING || state == Thread.State.TIMED_WAITING;</span> |
| <span class="source-line-no">264</span><span id="line-264"> }</span> |
| <span class="source-line-no">265</span><span id="line-265"></span> |
| <span class="source-line-no">266</span><span id="line-266"> /** Returns true if all WAL roll finished */</span> |
| <span class="source-line-no">267</span><span id="line-267"> public boolean walRollFinished() {</span> |
| <span class="source-line-no">268</span><span id="line-268"> // TODO add a status field of roll in RollController</span> |
| <span class="source-line-no">269</span><span id="line-269"> return wals.values().stream()</span> |
| <span class="source-line-no">270</span><span id="line-270"> .noneMatch(rc -> rc.needsRoll(EnvironmentEdgeManager.currentTime())) && isWaiting();</span> |
| <span class="source-line-no">271</span><span id="line-271"> }</span> |
| <span class="source-line-no">272</span><span id="line-272"></span> |
| <span class="source-line-no">273</span><span id="line-273"> /**</span> |
| <span class="source-line-no">274</span><span id="line-274"> * Wait until all wals have been rolled after calling {@link #requestRollAll()}.</span> |
| <span class="source-line-no">275</span><span id="line-275"> */</span> |
| <span class="source-line-no">276</span><span id="line-276"> public void waitUntilWalRollFinished() throws InterruptedException {</span> |
| <span class="source-line-no">277</span><span id="line-277"> while (!walRollFinished()) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> Thread.sleep(100);</span> |
| <span class="source-line-no">279</span><span id="line-279"> }</span> |
| <span class="source-line-no">280</span><span id="line-280"> }</span> |
| <span class="source-line-no">281</span><span id="line-281"></span> |
| <span class="source-line-no">282</span><span id="line-282"> @Override</span> |
| <span class="source-line-no">283</span><span id="line-283"> public void close() {</span> |
| <span class="source-line-no">284</span><span id="line-284"> running = false;</span> |
| <span class="source-line-no">285</span><span id="line-285"> interrupt();</span> |
| <span class="source-line-no">286</span><span id="line-286"> }</span> |
| <span class="source-line-no">287</span><span id="line-287"></span> |
| <span class="source-line-no">288</span><span id="line-288"> /**</span> |
| <span class="source-line-no">289</span><span id="line-289"> * Independently control the roll of each wal. When use multiwal, can avoid all wal roll together.</span> |
| <span class="source-line-no">290</span><span id="line-290"> * see HBASE-24665 for detail</span> |
| <span class="source-line-no">291</span><span id="line-291"> */</span> |
| <span class="source-line-no">292</span><span id="line-292"> protected class RollController {</span> |
| <span class="source-line-no">293</span><span id="line-293"> private final WAL wal;</span> |
| <span class="source-line-no">294</span><span id="line-294"> private final AtomicBoolean rollRequest;</span> |
| <span class="source-line-no">295</span><span id="line-295"> private long lastRollTime;</span> |
| <span class="source-line-no">296</span><span id="line-296"></span> |
| <span class="source-line-no">297</span><span id="line-297"> RollController(WAL wal) {</span> |
| <span class="source-line-no">298</span><span id="line-298"> this.wal = wal;</span> |
| <span class="source-line-no">299</span><span id="line-299"> this.rollRequest = new AtomicBoolean(false);</span> |
| <span class="source-line-no">300</span><span id="line-300"> this.lastRollTime = EnvironmentEdgeManager.currentTime();</span> |
| <span class="source-line-no">301</span><span id="line-301"> }</span> |
| <span class="source-line-no">302</span><span id="line-302"></span> |
| <span class="source-line-no">303</span><span id="line-303"> public void requestRoll() {</span> |
| <span class="source-line-no">304</span><span id="line-304"> this.rollRequest.set(true);</span> |
| <span class="source-line-no">305</span><span id="line-305"> }</span> |
| <span class="source-line-no">306</span><span id="line-306"></span> |
| <span class="source-line-no">307</span><span id="line-307"> public Map<byte[], List<byte[]>> rollWal(long now) throws IOException {</span> |
| <span class="source-line-no">308</span><span id="line-308"> this.lastRollTime = now;</span> |
| <span class="source-line-no">309</span><span id="line-309"> // reset the flag in front to avoid missing roll request before we return from rollWriter.</span> |
| <span class="source-line-no">310</span><span id="line-310"> this.rollRequest.set(false);</span> |
| <span class="source-line-no">311</span><span id="line-311"> return wal.rollWriter(true);</span> |
| <span class="source-line-no">312</span><span id="line-312"> }</span> |
| <span class="source-line-no">313</span><span id="line-313"></span> |
| <span class="source-line-no">314</span><span id="line-314"> public boolean isRollRequested() {</span> |
| <span class="source-line-no">315</span><span id="line-315"> return rollRequest.get();</span> |
| <span class="source-line-no">316</span><span id="line-316"> }</span> |
| <span class="source-line-no">317</span><span id="line-317"></span> |
| <span class="source-line-no">318</span><span id="line-318"> public boolean needsPeriodicRoll(long now) {</span> |
| <span class="source-line-no">319</span><span id="line-319"> return (now - this.lastRollTime) > rollPeriod;</span> |
| <span class="source-line-no">320</span><span id="line-320"> }</span> |
| <span class="source-line-no">321</span><span id="line-321"></span> |
| <span class="source-line-no">322</span><span id="line-322"> public boolean needsRoll(long now) {</span> |
| <span class="source-line-no">323</span><span id="line-323"> return isRollRequested() || needsPeriodicRoll(now);</span> |
| <span class="source-line-no">324</span><span id="line-324"> }</span> |
| <span class="source-line-no">325</span><span id="line-325"> }</span> |
| <span class="source-line-no">326</span><span id="line-326">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
