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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.regionserver;</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 com.google.errorprone.annotations.RestrictedApi;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.List;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.ScheduledChore;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.Server;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.Stoppable;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.executor.EventType;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.slf4j.Logger;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">029</span><span id="line-29"></span> |
| <span class="source-line-no">030</span><span id="line-30">/**</span> |
| <span class="source-line-no">031</span><span id="line-31"> * A chore service that periodically cleans up the compacted files when there are no active readers</span> |
| <span class="source-line-no">032</span><span id="line-32"> * using those compacted files and also helps in clearing the block cache of these compacted file</span> |
| <span class="source-line-no">033</span><span id="line-33"> * entries.</span> |
| <span class="source-line-no">034</span><span id="line-34"> */</span> |
| <span class="source-line-no">035</span><span id="line-35">@InterfaceAudience.Private</span> |
| <span class="source-line-no">036</span><span id="line-36">public class CompactedHFilesDischarger extends ScheduledChore {</span> |
| <span class="source-line-no">037</span><span id="line-37"> private static final Logger LOG = LoggerFactory.getLogger(CompactedHFilesDischarger.class);</span> |
| <span class="source-line-no">038</span><span id="line-38"> private RegionServerServices regionServerServices;</span> |
| <span class="source-line-no">039</span><span id="line-39"> // Default is to use executor</span> |
| <span class="source-line-no">040</span><span id="line-40"> private boolean useExecutor = true;</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42"> /**</span> |
| <span class="source-line-no">043</span><span id="line-43"> * @param period the period of time to sleep between each run</span> |
| <span class="source-line-no">044</span><span id="line-44"> * @param stopper the stopper</span> |
| <span class="source-line-no">045</span><span id="line-45"> * @param regionServerServices the region server that starts this chore</span> |
| <span class="source-line-no">046</span><span id="line-46"> */</span> |
| <span class="source-line-no">047</span><span id="line-47"> public CompactedHFilesDischarger(final int period, final Stoppable stopper,</span> |
| <span class="source-line-no">048</span><span id="line-48"> final RegionServerServices regionServerServices) {</span> |
| <span class="source-line-no">049</span><span id="line-49"> // Need to add the config classes</span> |
| <span class="source-line-no">050</span><span id="line-50"> super("CompactedHFilesCleaner", stopper, period);</span> |
| <span class="source-line-no">051</span><span id="line-51"> this.regionServerServices = regionServerServices;</span> |
| <span class="source-line-no">052</span><span id="line-52"> }</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> /**</span> |
| <span class="source-line-no">055</span><span id="line-55"> * @param period the period of time to sleep between each run</span> |
| <span class="source-line-no">056</span><span id="line-56"> * @param stopper the stopper</span> |
| <span class="source-line-no">057</span><span id="line-57"> * @param regionServerServices the region server that starts this chore</span> |
| <span class="source-line-no">058</span><span id="line-58"> * @param useExecutor true if to use the region server's executor service, false</span> |
| <span class="source-line-no">059</span><span id="line-59"> * otherwise</span> |
| <span class="source-line-no">060</span><span id="line-60"> */</span> |
| <span class="source-line-no">061</span><span id="line-61"> public CompactedHFilesDischarger(final int period, final Stoppable stopper,</span> |
| <span class="source-line-no">062</span><span id="line-62"> final RegionServerServices regionServerServices, boolean useExecutor) {</span> |
| <span class="source-line-no">063</span><span id="line-63"> // Need to add the config classes</span> |
| <span class="source-line-no">064</span><span id="line-64"> this(period, stopper, regionServerServices);</span> |
| <span class="source-line-no">065</span><span id="line-65"> this.useExecutor = useExecutor;</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</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"> * CompactedHFilesDischarger runs asynchronously by default using the hosting RegionServer's</span> |
| <span class="source-line-no">070</span><span id="line-70"> * Executor. In tests it can be useful to force a synchronous cleanup. Use this method to set</span> |
| <span class="source-line-no">071</span><span id="line-71"> * no-executor before you call run.</span> |
| <span class="source-line-no">072</span><span id="line-72"> * @return The old setting for <code>useExecutor</code></span> |
| <span class="source-line-no">073</span><span id="line-73"> */</span> |
| <span class="source-line-no">074</span><span id="line-74"> @RestrictedApi(explanation = "Should only be called in tests", link = "",</span> |
| <span class="source-line-no">075</span><span id="line-75"> allowedOnPath = ".*/src/test/.*")</span> |
| <span class="source-line-no">076</span><span id="line-76"> public boolean setUseExecutor(final boolean useExecutor) {</span> |
| <span class="source-line-no">077</span><span id="line-77"> boolean oldSetting = this.useExecutor;</span> |
| <span class="source-line-no">078</span><span id="line-78"> this.useExecutor = useExecutor;</span> |
| <span class="source-line-no">079</span><span id="line-79"> return oldSetting;</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> @Override</span> |
| <span class="source-line-no">083</span><span id="line-83"> public void chore() {</span> |
| <span class="source-line-no">084</span><span id="line-84"> // Noop if rss is null. This will never happen in a normal condition except for cases</span> |
| <span class="source-line-no">085</span><span id="line-85"> // when the test case is not spinning up a cluster</span> |
| <span class="source-line-no">086</span><span id="line-86"> if (regionServerServices == null) return;</span> |
| <span class="source-line-no">087</span><span id="line-87"> List<HRegion> onlineRegions = (List<HRegion>) regionServerServices.getRegions();</span> |
| <span class="source-line-no">088</span><span id="line-88"> if (onlineRegions == null) return;</span> |
| <span class="source-line-no">089</span><span id="line-89"> for (HRegion region : onlineRegions) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> if (LOG.isTraceEnabled()) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> LOG.trace("Started compacted hfiles cleaner on " + region.getRegionInfo());</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> for (HStore store : region.getStores()) {</span> |
| <span class="source-line-no">094</span><span id="line-94"> try {</span> |
| <span class="source-line-no">095</span><span id="line-95"> if (useExecutor && regionServerServices != null) {</span> |
| <span class="source-line-no">096</span><span id="line-96"> CompactedHFilesDischargeHandler handler = new CompactedHFilesDischargeHandler(</span> |
| <span class="source-line-no">097</span><span id="line-97"> (Server) regionServerServices, EventType.RS_COMPACTED_FILES_DISCHARGER, store);</span> |
| <span class="source-line-no">098</span><span id="line-98"> regionServerServices.getExecutorService().submit(handler);</span> |
| <span class="source-line-no">099</span><span id="line-99"> } else {</span> |
| <span class="source-line-no">100</span><span id="line-100"> // call synchronously if the RegionServerServices are not</span> |
| <span class="source-line-no">101</span><span id="line-101"> // available</span> |
| <span class="source-line-no">102</span><span id="line-102"> store.closeAndArchiveCompactedFiles();</span> |
| <span class="source-line-no">103</span><span id="line-103"> }</span> |
| <span class="source-line-no">104</span><span id="line-104"> if (LOG.isTraceEnabled()) {</span> |
| <span class="source-line-no">105</span><span id="line-105"> LOG.trace("Completed archiving the compacted files for the region "</span> |
| <span class="source-line-no">106</span><span id="line-106"> + region.getRegionInfo() + " under the store " + store.getColumnFamilyName());</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108"> } catch (Exception e) {</span> |
| <span class="source-line-no">109</span><span id="line-109"> LOG.error("Exception while trying to close and archive the compacted store "</span> |
| <span class="source-line-no">110</span><span id="line-110"> + "files of the store " + store.getColumnFamilyName() + " in the" + " region "</span> |
| <span class="source-line-no">111</span><span id="line-111"> + region.getRegionInfo(), e);</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"> if (LOG.isTraceEnabled()) {</span> |
| <span class="source-line-no">115</span><span id="line-115"> LOG</span> |
| <span class="source-line-no">116</span><span id="line-116"> .trace("Completed the compacted hfiles cleaner for the region " + region.getRegionInfo());</span> |
| <span class="source-line-no">117</span><span id="line-117"> }</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"> }</span> |
| <span class="source-line-no">120</span><span id="line-120">}</span> |
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| </pre> |
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