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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 static org.apache.hadoop.hbase.regionserver.StoreFileWriter.shouldEnableHistoricalCompactionFiles;</span> |
| <span class="source-line-no">021</span><span id="line-21"></span> |
| <span class="source-line-no">022</span><span id="line-22">import edu.umd.cs.findbugs.annotations.Nullable;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.IOException;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.ArrayList;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Collection;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.Comparator;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.Iterator;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.List;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.Optional;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.stream.Collectors;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.CellComparator;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.KeyValue;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.regionserver.compactions.CompactionConfiguration;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.Logger;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableCollection;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hbase.thirdparty.com.google.common.collect.Iterables;</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44">/**</span> |
| <span class="source-line-no">045</span><span id="line-45"> * Default implementation of StoreFileManager. Not thread-safe.</span> |
| <span class="source-line-no">046</span><span id="line-46"> */</span> |
| <span class="source-line-no">047</span><span id="line-47">@InterfaceAudience.Private</span> |
| <span class="source-line-no">048</span><span id="line-48">class DefaultStoreFileManager implements StoreFileManager {</span> |
| <span class="source-line-no">049</span><span id="line-49"> private static final Logger LOG = LoggerFactory.getLogger(DefaultStoreFileManager.class);</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> private final CellComparator cellComparator;</span> |
| <span class="source-line-no">052</span><span id="line-52"> private final CompactionConfiguration comConf;</span> |
| <span class="source-line-no">053</span><span id="line-53"> private final int blockingFileCount;</span> |
| <span class="source-line-no">054</span><span id="line-54"> private final Comparator<HStoreFile> storeFileComparator;</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> static class StoreFileList {</span> |
| <span class="source-line-no">057</span><span id="line-57"> /**</span> |
| <span class="source-line-no">058</span><span id="line-58"> * List of store files inside this store. This is an immutable list that is atomically replaced</span> |
| <span class="source-line-no">059</span><span id="line-59"> * when its contents change.</span> |
| <span class="source-line-no">060</span><span id="line-60"> */</span> |
| <span class="source-line-no">061</span><span id="line-61"> final ImmutableList<HStoreFile> all;</span> |
| <span class="source-line-no">062</span><span id="line-62"> /**</span> |
| <span class="source-line-no">063</span><span id="line-63"> * List of store files that include the latest cells inside this store. This is an immutable</span> |
| <span class="source-line-no">064</span><span id="line-64"> * list that is atomically replaced when its contents change.</span> |
| <span class="source-line-no">065</span><span id="line-65"> */</span> |
| <span class="source-line-no">066</span><span id="line-66"> @Nullable</span> |
| <span class="source-line-no">067</span><span id="line-67"> final ImmutableList<HStoreFile> live;</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> StoreFileList(ImmutableList<HStoreFile> storeFiles, ImmutableList<HStoreFile> liveStoreFiles) {</span> |
| <span class="source-line-no">070</span><span id="line-70"> this.all = storeFiles;</span> |
| <span class="source-line-no">071</span><span id="line-71"> this.live = liveStoreFiles;</span> |
| <span class="source-line-no">072</span><span id="line-72"> }</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> private volatile StoreFileList storeFiles;</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> /**</span> |
| <span class="source-line-no">078</span><span id="line-78"> * List of compacted files inside this store that needs to be excluded in reads because further</span> |
| <span class="source-line-no">079</span><span id="line-79"> * new reads will be using only the newly created files out of compaction. These compacted files</span> |
| <span class="source-line-no">080</span><span id="line-80"> * will be deleted/cleared once all the existing readers on these compacted files are done.</span> |
| <span class="source-line-no">081</span><span id="line-81"> */</span> |
| <span class="source-line-no">082</span><span id="line-82"> private volatile ImmutableList<HStoreFile> compactedfiles = ImmutableList.of();</span> |
| <span class="source-line-no">083</span><span id="line-83"> private final boolean enableLiveFileTracking;</span> |
| <span class="source-line-no">084</span><span id="line-84"></span> |
| <span class="source-line-no">085</span><span id="line-85"> public DefaultStoreFileManager(CellComparator cellComparator,</span> |
| <span class="source-line-no">086</span><span id="line-86"> Comparator<HStoreFile> storeFileComparator, Configuration conf,</span> |
| <span class="source-line-no">087</span><span id="line-87"> CompactionConfiguration comConf) {</span> |
| <span class="source-line-no">088</span><span id="line-88"> this.cellComparator = cellComparator;</span> |
| <span class="source-line-no">089</span><span id="line-89"> this.storeFileComparator = storeFileComparator;</span> |
| <span class="source-line-no">090</span><span id="line-90"> this.comConf = comConf;</span> |
| <span class="source-line-no">091</span><span id="line-91"> blockingFileCount =</span> |
| <span class="source-line-no">092</span><span id="line-92"> conf.getInt(HStore.BLOCKING_STOREFILES_KEY, HStore.DEFAULT_BLOCKING_STOREFILE_COUNT);</span> |
| <span class="source-line-no">093</span><span id="line-93"> enableLiveFileTracking = shouldEnableHistoricalCompactionFiles(conf);</span> |
| <span class="source-line-no">094</span><span id="line-94"> storeFiles =</span> |
| <span class="source-line-no">095</span><span id="line-95"> new StoreFileList(ImmutableList.of(), enableLiveFileTracking ? ImmutableList.of() : null);</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> private List<HStoreFile> getLiveFiles(Collection<HStoreFile> storeFiles) throws IOException {</span> |
| <span class="source-line-no">099</span><span id="line-99"> List<HStoreFile> liveFiles = new ArrayList<>(storeFiles.size());</span> |
| <span class="source-line-no">100</span><span id="line-100"> for (HStoreFile file : storeFiles) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> file.initReader();</span> |
| <span class="source-line-no">102</span><span id="line-102"> if (!file.isHistorical()) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> liveFiles.add(file);</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"> return liveFiles;</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> @Override</span> |
| <span class="source-line-no">110</span><span id="line-110"> public void loadFiles(List<HStoreFile> storeFiles) throws IOException {</span> |
| <span class="source-line-no">111</span><span id="line-111"> this.storeFiles = new StoreFileList(ImmutableList.sortedCopyOf(storeFileComparator, storeFiles),</span> |
| <span class="source-line-no">112</span><span id="line-112"> enableLiveFileTracking</span> |
| <span class="source-line-no">113</span><span id="line-113"> ? ImmutableList.sortedCopyOf(storeFileComparator, getLiveFiles(storeFiles))</span> |
| <span class="source-line-no">114</span><span id="line-114"> : null);</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"></span> |
| <span class="source-line-no">117</span><span id="line-117"> @Override</span> |
| <span class="source-line-no">118</span><span id="line-118"> public final Collection<HStoreFile> getStoreFiles() {</span> |
| <span class="source-line-no">119</span><span id="line-119"> return storeFiles.all;</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> @Override</span> |
| <span class="source-line-no">123</span><span id="line-123"> public Collection<HStoreFile> getCompactedfiles() {</span> |
| <span class="source-line-no">124</span><span id="line-124"> return compactedfiles;</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</span> |
| <span class="source-line-no">126</span><span id="line-126"></span> |
| <span class="source-line-no">127</span><span id="line-127"> @Override</span> |
| <span class="source-line-no">128</span><span id="line-128"> public void insertNewFiles(Collection<HStoreFile> sfs) throws IOException {</span> |
| <span class="source-line-no">129</span><span id="line-129"> storeFiles = new StoreFileList(</span> |
| <span class="source-line-no">130</span><span id="line-130"> ImmutableList.sortedCopyOf(storeFileComparator, Iterables.concat(storeFiles.all, sfs)),</span> |
| <span class="source-line-no">131</span><span id="line-131"> enableLiveFileTracking</span> |
| <span class="source-line-no">132</span><span id="line-132"> ? ImmutableList.sortedCopyOf(storeFileComparator,</span> |
| <span class="source-line-no">133</span><span id="line-133"> Iterables.concat(storeFiles.live, getLiveFiles(sfs)))</span> |
| <span class="source-line-no">134</span><span id="line-134"> : null);</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"> @Override</span> |
| <span class="source-line-no">138</span><span id="line-138"> public ImmutableCollection<HStoreFile> clearFiles() {</span> |
| <span class="source-line-no">139</span><span id="line-139"> ImmutableList<HStoreFile> result = storeFiles.all;</span> |
| <span class="source-line-no">140</span><span id="line-140"> storeFiles =</span> |
| <span class="source-line-no">141</span><span id="line-141"> new StoreFileList(ImmutableList.of(), enableLiveFileTracking ? ImmutableList.of() : null);</span> |
| <span class="source-line-no">142</span><span id="line-142"> return result;</span> |
| <span class="source-line-no">143</span><span id="line-143"> }</span> |
| <span class="source-line-no">144</span><span id="line-144"></span> |
| <span class="source-line-no">145</span><span id="line-145"> @Override</span> |
| <span class="source-line-no">146</span><span id="line-146"> public Collection<HStoreFile> clearCompactedFiles() {</span> |
| <span class="source-line-no">147</span><span id="line-147"> List<HStoreFile> result = compactedfiles;</span> |
| <span class="source-line-no">148</span><span id="line-148"> compactedfiles = ImmutableList.of();</span> |
| <span class="source-line-no">149</span><span id="line-149"> return result;</span> |
| <span class="source-line-no">150</span><span id="line-150"> }</span> |
| <span class="source-line-no">151</span><span id="line-151"></span> |
| <span class="source-line-no">152</span><span id="line-152"> @Override</span> |
| <span class="source-line-no">153</span><span id="line-153"> public final int getStorefileCount() {</span> |
| <span class="source-line-no">154</span><span id="line-154"> return storeFiles.all.size();</span> |
| <span class="source-line-no">155</span><span id="line-155"> }</span> |
| <span class="source-line-no">156</span><span id="line-156"></span> |
| <span class="source-line-no">157</span><span id="line-157"> @Override</span> |
| <span class="source-line-no">158</span><span id="line-158"> public final int getCompactedFilesCount() {</span> |
| <span class="source-line-no">159</span><span id="line-159"> return compactedfiles.size();</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"></span> |
| <span class="source-line-no">162</span><span id="line-162"> @Override</span> |
| <span class="source-line-no">163</span><span id="line-163"> public void addCompactionResults(Collection<HStoreFile> newCompactedfiles,</span> |
| <span class="source-line-no">164</span><span id="line-164"> Collection<HStoreFile> results) throws IOException {</span> |
| <span class="source-line-no">165</span><span id="line-165"> ImmutableList<HStoreFile> liveStoreFiles = null;</span> |
| <span class="source-line-no">166</span><span id="line-166"> if (enableLiveFileTracking) {</span> |
| <span class="source-line-no">167</span><span id="line-167"> liveStoreFiles = ImmutableList.sortedCopyOf(storeFileComparator,</span> |
| <span class="source-line-no">168</span><span id="line-168"> Iterables.concat(Iterables.filter(storeFiles.live, sf -> !newCompactedfiles.contains(sf)),</span> |
| <span class="source-line-no">169</span><span id="line-169"> getLiveFiles(results)));</span> |
| <span class="source-line-no">170</span><span id="line-170"> }</span> |
| <span class="source-line-no">171</span><span id="line-171"> storeFiles =</span> |
| <span class="source-line-no">172</span><span id="line-172"> new StoreFileList(</span> |
| <span class="source-line-no">173</span><span id="line-173"> ImmutableList</span> |
| <span class="source-line-no">174</span><span id="line-174"> .sortedCopyOf(storeFileComparator,</span> |
| <span class="source-line-no">175</span><span id="line-175"> Iterables.concat(</span> |
| <span class="source-line-no">176</span><span id="line-176"> Iterables.filter(storeFiles.all, sf -> !newCompactedfiles.contains(sf)), results)),</span> |
| <span class="source-line-no">177</span><span id="line-177"> liveStoreFiles);</span> |
| <span class="source-line-no">178</span><span id="line-178"> // Mark the files as compactedAway once the storefiles and compactedfiles list is finalized</span> |
| <span class="source-line-no">179</span><span id="line-179"> // Let a background thread close the actual reader on these compacted files and also</span> |
| <span class="source-line-no">180</span><span id="line-180"> // ensure to evict the blocks from block cache so that they are no longer in</span> |
| <span class="source-line-no">181</span><span id="line-181"> // cache</span> |
| <span class="source-line-no">182</span><span id="line-182"> newCompactedfiles.forEach(HStoreFile::markCompactedAway);</span> |
| <span class="source-line-no">183</span><span id="line-183"> compactedfiles = ImmutableList.sortedCopyOf(storeFileComparator,</span> |
| <span class="source-line-no">184</span><span id="line-184"> Iterables.concat(compactedfiles, newCompactedfiles));</span> |
| <span class="source-line-no">185</span><span id="line-185"> }</span> |
| <span class="source-line-no">186</span><span id="line-186"></span> |
| <span class="source-line-no">187</span><span id="line-187"> @Override</span> |
| <span class="source-line-no">188</span><span id="line-188"> public void removeCompactedFiles(Collection<HStoreFile> removedCompactedfiles) {</span> |
| <span class="source-line-no">189</span><span id="line-189"> compactedfiles = compactedfiles.stream().filter(sf -> !removedCompactedfiles.contains(sf))</span> |
| <span class="source-line-no">190</span><span id="line-190"> .sorted(storeFileComparator).collect(ImmutableList.toImmutableList());</span> |
| <span class="source-line-no">191</span><span id="line-191"> }</span> |
| <span class="source-line-no">192</span><span id="line-192"></span> |
| <span class="source-line-no">193</span><span id="line-193"> @Override</span> |
| <span class="source-line-no">194</span><span id="line-194"> public final Iterator<HStoreFile> getCandidateFilesForRowKeyBefore(KeyValue targetKey) {</span> |
| <span class="source-line-no">195</span><span id="line-195"> return storeFiles.all.reverse().iterator();</span> |
| <span class="source-line-no">196</span><span id="line-196"> }</span> |
| <span class="source-line-no">197</span><span id="line-197"></span> |
| <span class="source-line-no">198</span><span id="line-198"> @Override</span> |
| <span class="source-line-no">199</span><span id="line-199"> public Iterator<HStoreFile> updateCandidateFilesForRowKeyBefore(</span> |
| <span class="source-line-no">200</span><span id="line-200"> Iterator<HStoreFile> candidateFiles, KeyValue targetKey, Cell candidate) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> // Default store has nothing useful to do here.</span> |
| <span class="source-line-no">202</span><span id="line-202"> // TODO: move this comment when implementing Level:</span> |
| <span class="source-line-no">203</span><span id="line-203"> // Level store can trim the list by range, removing all the files which cannot have</span> |
| <span class="source-line-no">204</span><span id="line-204"> // any useful candidates less than "candidate".</span> |
| <span class="source-line-no">205</span><span id="line-205"> return candidateFiles;</span> |
| <span class="source-line-no">206</span><span id="line-206"> }</span> |
| <span class="source-line-no">207</span><span id="line-207"></span> |
| <span class="source-line-no">208</span><span id="line-208"> @Override</span> |
| <span class="source-line-no">209</span><span id="line-209"> public final Optional<byte[]> getSplitPoint() throws IOException {</span> |
| <span class="source-line-no">210</span><span id="line-210"> return StoreUtils.getSplitPoint(storeFiles.all, cellComparator);</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"></span> |
| <span class="source-line-no">213</span><span id="line-213"> @Override</span> |
| <span class="source-line-no">214</span><span id="line-214"> public Collection<HStoreFile> getFilesForScan(byte[] startRow, boolean includeStartRow,</span> |
| <span class="source-line-no">215</span><span id="line-215"> byte[] stopRow, boolean includeStopRow, boolean onlyLatestVersion) {</span> |
| <span class="source-line-no">216</span><span id="line-216"> if (onlyLatestVersion && enableLiveFileTracking) {</span> |
| <span class="source-line-no">217</span><span id="line-217"> return storeFiles.live;</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"> // We cannot provide any useful input and already have the files sorted by seqNum.</span> |
| <span class="source-line-no">220</span><span id="line-220"> return getStoreFiles();</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"></span> |
| <span class="source-line-no">223</span><span id="line-223"> @Override</span> |
| <span class="source-line-no">224</span><span id="line-224"> public int getStoreCompactionPriority() {</span> |
| <span class="source-line-no">225</span><span id="line-225"> int priority = blockingFileCount - storeFiles.all.size();</span> |
| <span class="source-line-no">226</span><span id="line-226"> return (priority == HStore.PRIORITY_USER) ? priority + 1 : priority;</span> |
| <span class="source-line-no">227</span><span id="line-227"> }</span> |
| <span class="source-line-no">228</span><span id="line-228"></span> |
| <span class="source-line-no">229</span><span id="line-229"> @Override</span> |
| <span class="source-line-no">230</span><span id="line-230"> public Collection<HStoreFile> getUnneededFiles(long maxTs, List<HStoreFile> filesCompacting) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> ImmutableList<HStoreFile> files = storeFiles.all;</span> |
| <span class="source-line-no">232</span><span id="line-232"> // 1) We can never get rid of the last file which has the maximum seqid.</span> |
| <span class="source-line-no">233</span><span id="line-233"> // 2) Files that are not the latest can't become one due to (1), so the rest are fair game.</span> |
| <span class="source-line-no">234</span><span id="line-234"> return files.stream().limit(Math.max(0, files.size() - 1)).filter(sf -> {</span> |
| <span class="source-line-no">235</span><span id="line-235"> long fileTs = sf.getReader().getMaxTimestamp();</span> |
| <span class="source-line-no">236</span><span id="line-236"> if (fileTs < maxTs && !filesCompacting.contains(sf)) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> LOG.info("Found an expired store file {} whose maxTimestamp is {}, which is below {}",</span> |
| <span class="source-line-no">238</span><span id="line-238"> sf.getPath(), fileTs, maxTs);</span> |
| <span class="source-line-no">239</span><span id="line-239"> return true;</span> |
| <span class="source-line-no">240</span><span id="line-240"> } else {</span> |
| <span class="source-line-no">241</span><span id="line-241"> return false;</span> |
| <span class="source-line-no">242</span><span id="line-242"> }</span> |
| <span class="source-line-no">243</span><span id="line-243"> }).collect(Collectors.toList());</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"></span> |
| <span class="source-line-no">246</span><span id="line-246"> @Override</span> |
| <span class="source-line-no">247</span><span id="line-247"> public double getCompactionPressure() {</span> |
| <span class="source-line-no">248</span><span id="line-248"> int storefileCount = getStorefileCount();</span> |
| <span class="source-line-no">249</span><span id="line-249"> int minFilesToCompact = comConf.getMinFilesToCompact();</span> |
| <span class="source-line-no">250</span><span id="line-250"> if (storefileCount <= minFilesToCompact) {</span> |
| <span class="source-line-no">251</span><span id="line-251"> return 0.0;</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"> return (double) (storefileCount - minFilesToCompact) / (blockingFileCount - minFilesToCompact);</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"> @Override</span> |
| <span class="source-line-no">257</span><span id="line-257"> public Comparator<HStoreFile> getStoreFileComparator() {</span> |
| <span class="source-line-no">258</span><span id="line-258"> return storeFileComparator;</span> |
| <span class="source-line-no">259</span><span id="line-259"> }</span> |
| <span class="source-line-no">260</span><span id="line-260">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
