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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 java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.ArrayList;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Arrays;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Collection;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.Collections;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Comparator;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.util.HashMap;</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.Map;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.Optional;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.TreeMap;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.CellComparator;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.CellUtil;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.KeyValue;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.regionserver.compactions.StripeCompactionPolicy;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.util.ConcatenatedLists;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.slf4j.Logger;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableCollection;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49">/**</span> |
| <span class="source-line-no">050</span><span id="line-50"> * Stripe implementation of {@link StoreFileManager}. Not thread safe - relies on external locking</span> |
| <span class="source-line-no">051</span><span id="line-51"> * (in HStore). Collections that this class returns are immutable or unique to the call, so they</span> |
| <span class="source-line-no">052</span><span id="line-52"> * should be safe. Stripe store splits the key space of the region into non-overlapping stripes, as</span> |
| <span class="source-line-no">053</span><span id="line-53"> * well as some recent files that have all the keys (level 0). Each stripe contains a set of files.</span> |
| <span class="source-line-no">054</span><span id="line-54"> * When L0 is compacted, it's split into the files corresponding to existing stripe boundaries, that</span> |
| <span class="source-line-no">055</span><span id="line-55"> * can thus be added to stripes. When scan or get happens, it only has to read the files from the</span> |
| <span class="source-line-no">056</span><span id="line-56"> * corresponding stripes. See {@link StripeCompactionPolicy} on how the stripes are determined; this</span> |
| <span class="source-line-no">057</span><span id="line-57"> * class doesn't care. This class should work together with {@link StripeCompactionPolicy} and</span> |
| <span class="source-line-no">058</span><span id="line-58"> * {@link org.apache.hadoop.hbase.regionserver.compactions.StripeCompactor}. With regard to how they</span> |
| <span class="source-line-no">059</span><span id="line-59"> * work, we make at least the following (reasonable) assumptions: - Compaction produces one file per</span> |
| <span class="source-line-no">060</span><span id="line-60"> * new stripe (if any); that is easy to change. - Compaction has one contiguous set of stripes both</span> |
| <span class="source-line-no">061</span><span id="line-61"> * in and out, except if L0 is involved.</span> |
| <span class="source-line-no">062</span><span id="line-62"> */</span> |
| <span class="source-line-no">063</span><span id="line-63">@InterfaceAudience.Private</span> |
| <span class="source-line-no">064</span><span id="line-64">public class StripeStoreFileManager</span> |
| <span class="source-line-no">065</span><span id="line-65"> implements StoreFileManager, StripeCompactionPolicy.StripeInformationProvider {</span> |
| <span class="source-line-no">066</span><span id="line-66"> private static final Logger LOG = LoggerFactory.getLogger(StripeStoreFileManager.class);</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"> * The file metadata fields that contain the stripe information.</span> |
| <span class="source-line-no">070</span><span id="line-70"> */</span> |
| <span class="source-line-no">071</span><span id="line-71"> public static final byte[] STRIPE_START_KEY = Bytes.toBytes("STRIPE_START_KEY");</span> |
| <span class="source-line-no">072</span><span id="line-72"> public static final byte[] STRIPE_END_KEY = Bytes.toBytes("STRIPE_END_KEY");</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> private final static Bytes.RowEndKeyComparator MAP_COMPARATOR = new Bytes.RowEndKeyComparator();</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> /**</span> |
| <span class="source-line-no">077</span><span id="line-77"> * The key value used for range boundary, indicating that the boundary is open (i.e. +-inf).</span> |
| <span class="source-line-no">078</span><span id="line-78"> */</span> |
| <span class="source-line-no">079</span><span id="line-79"> public final static byte[] OPEN_KEY = HConstants.EMPTY_BYTE_ARRAY;</span> |
| <span class="source-line-no">080</span><span id="line-80"> final static byte[] INVALID_KEY = null;</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> /**</span> |
| <span class="source-line-no">083</span><span id="line-83"> * The state class. Used solely to replace results atomically during compactions and avoid</span> |
| <span class="source-line-no">084</span><span id="line-84"> * complicated error handling.</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 static class State {</span> |
| <span class="source-line-no">087</span><span id="line-87"> /**</span> |
| <span class="source-line-no">088</span><span id="line-88"> * The end rows of each stripe. The last stripe end is always open-ended, so it's not stored</span> |
| <span class="source-line-no">089</span><span id="line-89"> * here. It is invariant that the start row of the stripe is the end row of the previous one</span> |
| <span class="source-line-no">090</span><span id="line-90"> * (and is an open boundary for the first one).</span> |
| <span class="source-line-no">091</span><span id="line-91"> */</span> |
| <span class="source-line-no">092</span><span id="line-92"> public byte[][] stripeEndRows = new byte[0][];</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> /**</span> |
| <span class="source-line-no">095</span><span id="line-95"> * Files by stripe. Each element of the list corresponds to stripeEndRow element with the same</span> |
| <span class="source-line-no">096</span><span id="line-96"> * index, except the last one. Inside each list, the files are in reverse order by seqNum. Note</span> |
| <span class="source-line-no">097</span><span id="line-97"> * that the length of this is one higher than that of stripeEndKeys.</span> |
| <span class="source-line-no">098</span><span id="line-98"> */</span> |
| <span class="source-line-no">099</span><span id="line-99"> public ArrayList<ImmutableList<HStoreFile>> stripeFiles = new ArrayList<>();</span> |
| <span class="source-line-no">100</span><span id="line-100"> /** Level 0. The files are in reverse order by seqNum. */</span> |
| <span class="source-line-no">101</span><span id="line-101"> public ImmutableList<HStoreFile> level0Files = ImmutableList.of();</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> /** Cached list of all files in the structure, to return from some calls */</span> |
| <span class="source-line-no">104</span><span id="line-104"> public ImmutableList<HStoreFile> allFilesCached = ImmutableList.of();</span> |
| <span class="source-line-no">105</span><span id="line-105"> private ImmutableList<HStoreFile> allCompactedFilesCached = ImmutableList.of();</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> private State state = null;</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> /** Cached file metadata (or overrides as the case may be) */</span> |
| <span class="source-line-no">111</span><span id="line-111"> private HashMap<HStoreFile, byte[]> fileStarts = new HashMap<>();</span> |
| <span class="source-line-no">112</span><span id="line-112"> private HashMap<HStoreFile, byte[]> fileEnds = new HashMap<>();</span> |
| <span class="source-line-no">113</span><span id="line-113"> /**</span> |
| <span class="source-line-no">114</span><span id="line-114"> * Normally invalid key is null, but in the map null is the result for "no key"; so use the</span> |
| <span class="source-line-no">115</span><span id="line-115"> * following constant value in these maps instead. Note that this is a constant and we use it to</span> |
| <span class="source-line-no">116</span><span id="line-116"> * compare by reference when we read from the map.</span> |
| <span class="source-line-no">117</span><span id="line-117"> */</span> |
| <span class="source-line-no">118</span><span id="line-118"> private static final byte[] INVALID_KEY_IN_MAP = new byte[0];</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> private final CellComparator cellComparator;</span> |
| <span class="source-line-no">121</span><span id="line-121"> private StripeStoreConfig config;</span> |
| <span class="source-line-no">122</span><span id="line-122"></span> |
| <span class="source-line-no">123</span><span id="line-123"> private final int blockingFileCount;</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> public StripeStoreFileManager(CellComparator kvComparator, Configuration conf,</span> |
| <span class="source-line-no">126</span><span id="line-126"> StripeStoreConfig config) {</span> |
| <span class="source-line-no">127</span><span id="line-127"> this.cellComparator = kvComparator;</span> |
| <span class="source-line-no">128</span><span id="line-128"> this.config = config;</span> |
| <span class="source-line-no">129</span><span id="line-129"> this.blockingFileCount =</span> |
| <span class="source-line-no">130</span><span id="line-130"> conf.getInt(HStore.BLOCKING_STOREFILES_KEY, HStore.DEFAULT_BLOCKING_STOREFILE_COUNT);</span> |
| <span class="source-line-no">131</span><span id="line-131"> }</span> |
| <span class="source-line-no">132</span><span id="line-132"></span> |
| <span class="source-line-no">133</span><span id="line-133"> @Override</span> |
| <span class="source-line-no">134</span><span id="line-134"> public void loadFiles(List<HStoreFile> storeFiles) {</span> |
| <span class="source-line-no">135</span><span id="line-135"> loadUnclassifiedStoreFiles(storeFiles);</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"> @Override</span> |
| <span class="source-line-no">139</span><span id="line-139"> public Collection<HStoreFile> getStoreFiles() {</span> |
| <span class="source-line-no">140</span><span id="line-140"> return state.allFilesCached;</span> |
| <span class="source-line-no">141</span><span id="line-141"> }</span> |
| <span class="source-line-no">142</span><span id="line-142"></span> |
| <span class="source-line-no">143</span><span id="line-143"> @Override</span> |
| <span class="source-line-no">144</span><span id="line-144"> public Collection<HStoreFile> getCompactedfiles() {</span> |
| <span class="source-line-no">145</span><span id="line-145"> return state.allCompactedFilesCached;</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> @Override</span> |
| <span class="source-line-no">149</span><span id="line-149"> public int getCompactedFilesCount() {</span> |
| <span class="source-line-no">150</span><span id="line-150"> return state.allCompactedFilesCached.size();</span> |
| <span class="source-line-no">151</span><span id="line-151"> }</span> |
| <span class="source-line-no">152</span><span id="line-152"></span> |
| <span class="source-line-no">153</span><span id="line-153"> @Override</span> |
| <span class="source-line-no">154</span><span id="line-154"> public void insertNewFiles(Collection<HStoreFile> sfs) {</span> |
| <span class="source-line-no">155</span><span id="line-155"> CompactionOrFlushMergeCopy cmc = new CompactionOrFlushMergeCopy(true);</span> |
| <span class="source-line-no">156</span><span id="line-156"> cmc.mergeResults(Collections.emptyList(), sfs);</span> |
| <span class="source-line-no">157</span><span id="line-157"> debugDumpState("Added new files");</span> |
| <span class="source-line-no">158</span><span id="line-158"> }</span> |
| <span class="source-line-no">159</span><span id="line-159"></span> |
| <span class="source-line-no">160</span><span id="line-160"> @Override</span> |
| <span class="source-line-no">161</span><span id="line-161"> public ImmutableCollection<HStoreFile> clearFiles() {</span> |
| <span class="source-line-no">162</span><span id="line-162"> ImmutableCollection<HStoreFile> result = state.allFilesCached;</span> |
| <span class="source-line-no">163</span><span id="line-163"> this.state = new State();</span> |
| <span class="source-line-no">164</span><span id="line-164"> this.fileStarts.clear();</span> |
| <span class="source-line-no">165</span><span id="line-165"> this.fileEnds.clear();</span> |
| <span class="source-line-no">166</span><span id="line-166"> return result;</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"> @Override</span> |
| <span class="source-line-no">170</span><span id="line-170"> public ImmutableCollection<HStoreFile> clearCompactedFiles() {</span> |
| <span class="source-line-no">171</span><span id="line-171"> ImmutableCollection<HStoreFile> result = state.allCompactedFilesCached;</span> |
| <span class="source-line-no">172</span><span id="line-172"> this.state = new State();</span> |
| <span class="source-line-no">173</span><span id="line-173"> return result;</span> |
| <span class="source-line-no">174</span><span id="line-174"> }</span> |
| <span class="source-line-no">175</span><span id="line-175"></span> |
| <span class="source-line-no">176</span><span id="line-176"> @Override</span> |
| <span class="source-line-no">177</span><span id="line-177"> public int getStorefileCount() {</span> |
| <span class="source-line-no">178</span><span id="line-178"> return state.allFilesCached.size();</span> |
| <span class="source-line-no">179</span><span id="line-179"> }</span> |
| <span class="source-line-no">180</span><span id="line-180"></span> |
| <span class="source-line-no">181</span><span id="line-181"> /**</span> |
| <span class="source-line-no">182</span><span id="line-182"> * See {@link StoreFileManager#getCandidateFilesForRowKeyBefore(KeyValue)} for details on this</span> |
| <span class="source-line-no">183</span><span id="line-183"> * methods.</span> |
| <span class="source-line-no">184</span><span id="line-184"> */</span> |
| <span class="source-line-no">185</span><span id="line-185"> @Override</span> |
| <span class="source-line-no">186</span><span id="line-186"> public Iterator<HStoreFile> getCandidateFilesForRowKeyBefore(final KeyValue targetKey) {</span> |
| <span class="source-line-no">187</span><span id="line-187"> KeyBeforeConcatenatedLists result = new KeyBeforeConcatenatedLists();</span> |
| <span class="source-line-no">188</span><span id="line-188"> // Order matters for this call.</span> |
| <span class="source-line-no">189</span><span id="line-189"> result.addSublist(state.level0Files);</span> |
| <span class="source-line-no">190</span><span id="line-190"> if (!state.stripeFiles.isEmpty()) {</span> |
| <span class="source-line-no">191</span><span id="line-191"> int lastStripeIndex = findStripeForRow(CellUtil.cloneRow(targetKey), false);</span> |
| <span class="source-line-no">192</span><span id="line-192"> for (int stripeIndex = lastStripeIndex; stripeIndex >= 0; --stripeIndex) {</span> |
| <span class="source-line-no">193</span><span id="line-193"> result.addSublist(state.stripeFiles.get(stripeIndex));</span> |
| <span class="source-line-no">194</span><span id="line-194"> }</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"> return result.iterator();</span> |
| <span class="source-line-no">197</span><span id="line-197"> }</span> |
| <span class="source-line-no">198</span><span id="line-198"></span> |
| <span class="source-line-no">199</span><span id="line-199"> /**</span> |
| <span class="source-line-no">200</span><span id="line-200"> * See {@link StoreFileManager#getCandidateFilesForRowKeyBefore(KeyValue)} and</span> |
| <span class="source-line-no">201</span><span id="line-201"> * {@link StoreFileManager#updateCandidateFilesForRowKeyBefore(Iterator, KeyValue, Cell)} for</span> |
| <span class="source-line-no">202</span><span id="line-202"> * details on this methods.</span> |
| <span class="source-line-no">203</span><span id="line-203"> */</span> |
| <span class="source-line-no">204</span><span id="line-204"> @Override</span> |
| <span class="source-line-no">205</span><span id="line-205"> public Iterator<HStoreFile> updateCandidateFilesForRowKeyBefore(</span> |
| <span class="source-line-no">206</span><span id="line-206"> Iterator<HStoreFile> candidateFiles, final KeyValue targetKey, final Cell candidate) {</span> |
| <span class="source-line-no">207</span><span id="line-207"> KeyBeforeConcatenatedLists.Iterator original =</span> |
| <span class="source-line-no">208</span><span id="line-208"> (KeyBeforeConcatenatedLists.Iterator) candidateFiles;</span> |
| <span class="source-line-no">209</span><span id="line-209"> assert original != null;</span> |
| <span class="source-line-no">210</span><span id="line-210"> ArrayList<List<HStoreFile>> components = original.getComponents();</span> |
| <span class="source-line-no">211</span><span id="line-211"> for (int firstIrrelevant = 0; firstIrrelevant < components.size(); ++firstIrrelevant) {</span> |
| <span class="source-line-no">212</span><span id="line-212"> HStoreFile sf = components.get(firstIrrelevant).get(0);</span> |
| <span class="source-line-no">213</span><span id="line-213"> byte[] endKey = endOf(sf);</span> |
| <span class="source-line-no">214</span><span id="line-214"> // Entries are ordered as such: L0, then stripes in reverse order. We never remove</span> |
| <span class="source-line-no">215</span><span id="line-215"> // level 0; we remove the stripe, and all subsequent ones, as soon as we find the</span> |
| <span class="source-line-no">216</span><span id="line-216"> // first one that cannot possibly have better candidates.</span> |
| <span class="source-line-no">217</span><span id="line-217"> if (!isInvalid(endKey) && !isOpen(endKey) && (nonOpenRowCompare(targetKey, endKey) >= 0)) {</span> |
| <span class="source-line-no">218</span><span id="line-218"> original.removeComponents(firstIrrelevant);</span> |
| <span class="source-line-no">219</span><span id="line-219"> break;</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> }</span> |
| <span class="source-line-no">222</span><span id="line-222"> return original;</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"></span> |
| <span class="source-line-no">225</span><span id="line-225"> /**</span> |
| <span class="source-line-no">226</span><span id="line-226"> * Override of getSplitPoint that determines the split point as the boundary between two stripes,</span> |
| <span class="source-line-no">227</span><span id="line-227"> * unless it causes significant imbalance between split sides' sizes. In that case, the split</span> |
| <span class="source-line-no">228</span><span id="line-228"> * boundary will be chosen from the middle of one of the stripes to minimize imbalance.</span> |
| <span class="source-line-no">229</span><span id="line-229"> * @return The split point, or null if no split is possible.</span> |
| <span class="source-line-no">230</span><span id="line-230"> */</span> |
| <span class="source-line-no">231</span><span id="line-231"> @Override</span> |
| <span class="source-line-no">232</span><span id="line-232"> public Optional<byte[]> getSplitPoint() throws IOException {</span> |
| <span class="source-line-no">233</span><span id="line-233"> if (this.getStorefileCount() == 0) {</span> |
| <span class="source-line-no">234</span><span id="line-234"> return Optional.empty();</span> |
| <span class="source-line-no">235</span><span id="line-235"> }</span> |
| <span class="source-line-no">236</span><span id="line-236"> if (state.stripeFiles.size() <= 1) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> return getSplitPointFromAllFiles();</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239"> int leftIndex = -1, rightIndex = state.stripeFiles.size();</span> |
| <span class="source-line-no">240</span><span id="line-240"> long leftSize = 0, rightSize = 0;</span> |
| <span class="source-line-no">241</span><span id="line-241"> long lastLeftSize = 0, lastRightSize = 0;</span> |
| <span class="source-line-no">242</span><span id="line-242"> while (rightIndex - 1 != leftIndex) {</span> |
| <span class="source-line-no">243</span><span id="line-243"> if (leftSize >= rightSize) {</span> |
| <span class="source-line-no">244</span><span id="line-244"> --rightIndex;</span> |
| <span class="source-line-no">245</span><span id="line-245"> lastRightSize = getStripeFilesSize(rightIndex);</span> |
| <span class="source-line-no">246</span><span id="line-246"> rightSize += lastRightSize;</span> |
| <span class="source-line-no">247</span><span id="line-247"> } else {</span> |
| <span class="source-line-no">248</span><span id="line-248"> ++leftIndex;</span> |
| <span class="source-line-no">249</span><span id="line-249"> lastLeftSize = getStripeFilesSize(leftIndex);</span> |
| <span class="source-line-no">250</span><span id="line-250"> leftSize += lastLeftSize;</span> |
| <span class="source-line-no">251</span><span id="line-251"> }</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"> if (leftSize == 0 || rightSize == 0) {</span> |
| <span class="source-line-no">254</span><span id="line-254"> String errMsg = String.format(</span> |
| <span class="source-line-no">255</span><span id="line-255"> "Cannot split on a boundary - left index %d size %d, " + "right index %d size %d",</span> |
| <span class="source-line-no">256</span><span id="line-256"> leftIndex, leftSize, rightIndex, rightSize);</span> |
| <span class="source-line-no">257</span><span id="line-257"> debugDumpState(errMsg);</span> |
| <span class="source-line-no">258</span><span id="line-258"> LOG.warn(errMsg);</span> |
| <span class="source-line-no">259</span><span id="line-259"> return getSplitPointFromAllFiles();</span> |
| <span class="source-line-no">260</span><span id="line-260"> }</span> |
| <span class="source-line-no">261</span><span id="line-261"> double ratio = (double) rightSize / leftSize;</span> |
| <span class="source-line-no">262</span><span id="line-262"> if (ratio < 1) {</span> |
| <span class="source-line-no">263</span><span id="line-263"> ratio = 1 / ratio;</span> |
| <span class="source-line-no">264</span><span id="line-264"> }</span> |
| <span class="source-line-no">265</span><span id="line-265"> if (config.getMaxSplitImbalance() > ratio) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> return Optional.of(state.stripeEndRows[leftIndex]);</span> |
| <span class="source-line-no">267</span><span id="line-267"> }</span> |
| <span class="source-line-no">268</span><span id="line-268"></span> |
| <span class="source-line-no">269</span><span id="line-269"> // If the difference between the sides is too large, we could get the proportional key on</span> |
| <span class="source-line-no">270</span><span id="line-270"> // the a stripe to equalize the difference, but there's no proportional key method at the</span> |
| <span class="source-line-no">271</span><span id="line-271"> // moment, and it's not extremely important.</span> |
| <span class="source-line-no">272</span><span id="line-272"> // See if we can achieve better ratio if we split the bigger side in half.</span> |
| <span class="source-line-no">273</span><span id="line-273"> boolean isRightLarger = rightSize >= leftSize;</span> |
| <span class="source-line-no">274</span><span id="line-274"> double newRatio = isRightLarger</span> |
| <span class="source-line-no">275</span><span id="line-275"> ? getMidStripeSplitRatio(leftSize, rightSize, lastRightSize)</span> |
| <span class="source-line-no">276</span><span id="line-276"> : getMidStripeSplitRatio(rightSize, leftSize, lastLeftSize);</span> |
| <span class="source-line-no">277</span><span id="line-277"> if (newRatio < 1) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> newRatio = 1 / newRatio;</span> |
| <span class="source-line-no">279</span><span id="line-279"> }</span> |
| <span class="source-line-no">280</span><span id="line-280"> if (newRatio >= ratio) {</span> |
| <span class="source-line-no">281</span><span id="line-281"> return Optional.of(state.stripeEndRows[leftIndex]);</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283"> LOG.debug("Splitting the stripe - ratio w/o split " + ratio + ", ratio with split " + newRatio</span> |
| <span class="source-line-no">284</span><span id="line-284"> + " configured ratio " + config.getMaxSplitImbalance());</span> |
| <span class="source-line-no">285</span><span id="line-285"> // OK, we may get better ratio, get it.</span> |
| <span class="source-line-no">286</span><span id="line-286"> return StoreUtils.getSplitPoint(state.stripeFiles.get(isRightLarger ? rightIndex : leftIndex),</span> |
| <span class="source-line-no">287</span><span id="line-287"> cellComparator);</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"></span> |
| <span class="source-line-no">290</span><span id="line-290"> private Optional<byte[]> getSplitPointFromAllFiles() throws IOException {</span> |
| <span class="source-line-no">291</span><span id="line-291"> ConcatenatedLists<HStoreFile> sfs = new ConcatenatedLists<>();</span> |
| <span class="source-line-no">292</span><span id="line-292"> sfs.addSublist(state.level0Files);</span> |
| <span class="source-line-no">293</span><span id="line-293"> sfs.addAllSublists(state.stripeFiles);</span> |
| <span class="source-line-no">294</span><span id="line-294"> return StoreUtils.getSplitPoint(sfs, cellComparator);</span> |
| <span class="source-line-no">295</span><span id="line-295"> }</span> |
| <span class="source-line-no">296</span><span id="line-296"></span> |
| <span class="source-line-no">297</span><span id="line-297"> private double getMidStripeSplitRatio(long smallerSize, long largerSize, long lastLargerSize) {</span> |
| <span class="source-line-no">298</span><span id="line-298"> return (double) (largerSize - lastLargerSize / 2f) / (smallerSize + lastLargerSize / 2f);</span> |
| <span class="source-line-no">299</span><span id="line-299"> }</span> |
| <span class="source-line-no">300</span><span id="line-300"></span> |
| <span class="source-line-no">301</span><span id="line-301"> @Override</span> |
| <span class="source-line-no">302</span><span id="line-302"> public Collection<HStoreFile> getFilesForScan(byte[] startRow, boolean includeStartRow,</span> |
| <span class="source-line-no">303</span><span id="line-303"> byte[] stopRow, boolean includeStopRow, boolean onlyLatestVersion) {</span> |
| <span class="source-line-no">304</span><span id="line-304"> if (state.stripeFiles.isEmpty()) {</span> |
| <span class="source-line-no">305</span><span id="line-305"> return state.level0Files; // There's just L0.</span> |
| <span class="source-line-no">306</span><span id="line-306"> }</span> |
| <span class="source-line-no">307</span><span id="line-307"></span> |
| <span class="source-line-no">308</span><span id="line-308"> int firstStripe = findStripeForRow(startRow, true);</span> |
| <span class="source-line-no">309</span><span id="line-309"> int lastStripe = findStripeForRow(stopRow, false);</span> |
| <span class="source-line-no">310</span><span id="line-310"> assert firstStripe <= lastStripe;</span> |
| <span class="source-line-no">311</span><span id="line-311"> if (firstStripe == lastStripe && state.level0Files.isEmpty()) {</span> |
| <span class="source-line-no">312</span><span id="line-312"> return state.stripeFiles.get(firstStripe); // There's just one stripe we need.</span> |
| <span class="source-line-no">313</span><span id="line-313"> }</span> |
| <span class="source-line-no">314</span><span id="line-314"> if (firstStripe == 0 && lastStripe == (state.stripeFiles.size() - 1)) {</span> |
| <span class="source-line-no">315</span><span id="line-315"> return state.allFilesCached; // We need to read all files.</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"> ConcatenatedLists<HStoreFile> result = new ConcatenatedLists<>();</span> |
| <span class="source-line-no">319</span><span id="line-319"> result.addAllSublists(state.stripeFiles.subList(firstStripe, lastStripe + 1));</span> |
| <span class="source-line-no">320</span><span id="line-320"> result.addSublist(state.level0Files);</span> |
| <span class="source-line-no">321</span><span id="line-321"> return result;</span> |
| <span class="source-line-no">322</span><span id="line-322"> }</span> |
| <span class="source-line-no">323</span><span id="line-323"></span> |
| <span class="source-line-no">324</span><span id="line-324"> @Override</span> |
| <span class="source-line-no">325</span><span id="line-325"> public void addCompactionResults(Collection<HStoreFile> compactedFiles,</span> |
| <span class="source-line-no">326</span><span id="line-326"> Collection<HStoreFile> results) {</span> |
| <span class="source-line-no">327</span><span id="line-327"> // See class comment for the assumptions we make here.</span> |
| <span class="source-line-no">328</span><span id="line-328"> LOG.debug("Attempting to merge compaction results: " + compactedFiles.size()</span> |
| <span class="source-line-no">329</span><span id="line-329"> + " files replaced by " + results.size());</span> |
| <span class="source-line-no">330</span><span id="line-330"> // In order to be able to fail in the middle of the operation, we'll operate on lazy</span> |
| <span class="source-line-no">331</span><span id="line-331"> // copies and apply the result at the end.</span> |
| <span class="source-line-no">332</span><span id="line-332"> CompactionOrFlushMergeCopy cmc = new CompactionOrFlushMergeCopy(false);</span> |
| <span class="source-line-no">333</span><span id="line-333"> cmc.mergeResults(compactedFiles, results);</span> |
| <span class="source-line-no">334</span><span id="line-334"> markCompactedAway(compactedFiles);</span> |
| <span class="source-line-no">335</span><span id="line-335"> debugDumpState("Merged compaction results");</span> |
| <span class="source-line-no">336</span><span id="line-336"> }</span> |
| <span class="source-line-no">337</span><span id="line-337"></span> |
| <span class="source-line-no">338</span><span id="line-338"> // Mark the files as compactedAway once the storefiles and compactedfiles list is finalised</span> |
| <span class="source-line-no">339</span><span id="line-339"> // Let a background thread close the actual reader on these compacted files and also</span> |
| <span class="source-line-no">340</span><span id="line-340"> // ensure to evict the blocks from block cache so that they are no longer in</span> |
| <span class="source-line-no">341</span><span id="line-341"> // cache</span> |
| <span class="source-line-no">342</span><span id="line-342"> private void markCompactedAway(Collection<HStoreFile> compactedFiles) {</span> |
| <span class="source-line-no">343</span><span id="line-343"> for (HStoreFile file : compactedFiles) {</span> |
| <span class="source-line-no">344</span><span id="line-344"> file.markCompactedAway();</span> |
| <span class="source-line-no">345</span><span id="line-345"> }</span> |
| <span class="source-line-no">346</span><span id="line-346"> }</span> |
| <span class="source-line-no">347</span><span id="line-347"></span> |
| <span class="source-line-no">348</span><span id="line-348"> @Override</span> |
| <span class="source-line-no">349</span><span id="line-349"> public void removeCompactedFiles(Collection<HStoreFile> compactedFiles) {</span> |
| <span class="source-line-no">350</span><span id="line-350"> // See class comment for the assumptions we make here.</span> |
| <span class="source-line-no">351</span><span id="line-351"> LOG.debug("Attempting to delete compaction results: " + compactedFiles.size());</span> |
| <span class="source-line-no">352</span><span id="line-352"> // In order to be able to fail in the middle of the operation, we'll operate on lazy</span> |
| <span class="source-line-no">353</span><span id="line-353"> // copies and apply the result at the end.</span> |
| <span class="source-line-no">354</span><span id="line-354"> CompactionOrFlushMergeCopy cmc = new CompactionOrFlushMergeCopy(false);</span> |
| <span class="source-line-no">355</span><span id="line-355"> cmc.deleteResults(compactedFiles);</span> |
| <span class="source-line-no">356</span><span id="line-356"> debugDumpState("Deleted compaction results");</span> |
| <span class="source-line-no">357</span><span id="line-357"> }</span> |
| <span class="source-line-no">358</span><span id="line-358"></span> |
| <span class="source-line-no">359</span><span id="line-359"> @Override</span> |
| <span class="source-line-no">360</span><span id="line-360"> public int getStoreCompactionPriority() {</span> |
| <span class="source-line-no">361</span><span id="line-361"> // If there's only L0, do what the default store does.</span> |
| <span class="source-line-no">362</span><span id="line-362"> // If we are in critical priority, do the same - we don't want to trump all stores all</span> |
| <span class="source-line-no">363</span><span id="line-363"> // the time due to how many files we have.</span> |
| <span class="source-line-no">364</span><span id="line-364"> int fc = getStorefileCount();</span> |
| <span class="source-line-no">365</span><span id="line-365"> if (state.stripeFiles.isEmpty() || (this.blockingFileCount <= fc)) {</span> |
| <span class="source-line-no">366</span><span id="line-366"> return this.blockingFileCount - fc;</span> |
| <span class="source-line-no">367</span><span id="line-367"> }</span> |
| <span class="source-line-no">368</span><span id="line-368"> // If we are in good shape, we don't want to be trumped by all other stores due to how</span> |
| <span class="source-line-no">369</span><span id="line-369"> // many files we have, so do an approximate mapping to normal priority range; L0 counts</span> |
| <span class="source-line-no">370</span><span id="line-370"> // for all stripes.</span> |
| <span class="source-line-no">371</span><span id="line-371"> int l0 = state.level0Files.size(), sc = state.stripeFiles.size();</span> |
| <span class="source-line-no">372</span><span id="line-372"> int priority = (int) Math.ceil(((double) (this.blockingFileCount - fc + l0) / sc) - l0);</span> |
| <span class="source-line-no">373</span><span id="line-373"> return (priority <= HStore.PRIORITY_USER) ? (HStore.PRIORITY_USER + 1) : priority;</span> |
| <span class="source-line-no">374</span><span id="line-374"> }</span> |
| <span class="source-line-no">375</span><span id="line-375"></span> |
| <span class="source-line-no">376</span><span id="line-376"> /**</span> |
| <span class="source-line-no">377</span><span id="line-377"> * Gets the total size of all files in the stripe.</span> |
| <span class="source-line-no">378</span><span id="line-378"> * @param stripeIndex Stripe index.</span> |
| <span class="source-line-no">379</span><span id="line-379"> * @return Size.</span> |
| <span class="source-line-no">380</span><span id="line-380"> */</span> |
| <span class="source-line-no">381</span><span id="line-381"> private long getStripeFilesSize(int stripeIndex) {</span> |
| <span class="source-line-no">382</span><span id="line-382"> long result = 0;</span> |
| <span class="source-line-no">383</span><span id="line-383"> for (HStoreFile sf : state.stripeFiles.get(stripeIndex)) {</span> |
| <span class="source-line-no">384</span><span id="line-384"> result += sf.getReader().length();</span> |
| <span class="source-line-no">385</span><span id="line-385"> }</span> |
| <span class="source-line-no">386</span><span id="line-386"> return result;</span> |
| <span class="source-line-no">387</span><span id="line-387"> }</span> |
| <span class="source-line-no">388</span><span id="line-388"></span> |
| <span class="source-line-no">389</span><span id="line-389"> /**</span> |
| <span class="source-line-no">390</span><span id="line-390"> * Loads initial store files that were picked up from some physical location pertaining to this</span> |
| <span class="source-line-no">391</span><span id="line-391"> * store (presumably). Unlike adding files after compaction, assumes empty initial sets, and is</span> |
| <span class="source-line-no">392</span><span id="line-392"> * forgiving with regard to stripe constraints - at worst, many/all files will go to level 0.</span> |
| <span class="source-line-no">393</span><span id="line-393"> * @param storeFiles Store files to add.</span> |
| <span class="source-line-no">394</span><span id="line-394"> */</span> |
| <span class="source-line-no">395</span><span id="line-395"> private void loadUnclassifiedStoreFiles(List<HStoreFile> storeFiles) {</span> |
| <span class="source-line-no">396</span><span id="line-396"> LOG.debug("Attempting to load " + storeFiles.size() + " store files.");</span> |
| <span class="source-line-no">397</span><span id="line-397"> TreeMap<byte[], ArrayList<HStoreFile>> candidateStripes = new TreeMap<>(MAP_COMPARATOR);</span> |
| <span class="source-line-no">398</span><span id="line-398"> ArrayList<HStoreFile> level0Files = new ArrayList<>();</span> |
| <span class="source-line-no">399</span><span id="line-399"> // Separate the files into tentative stripes; then validate. Currently, we rely on metadata.</span> |
| <span class="source-line-no">400</span><span id="line-400"> // If needed, we could dynamically determine the stripes in future.</span> |
| <span class="source-line-no">401</span><span id="line-401"> for (HStoreFile sf : storeFiles) {</span> |
| <span class="source-line-no">402</span><span id="line-402"> byte[] startRow = startOf(sf), endRow = endOf(sf);</span> |
| <span class="source-line-no">403</span><span id="line-403"> // Validate the range and put the files into place.</span> |
| <span class="source-line-no">404</span><span id="line-404"> if (isInvalid(startRow) || isInvalid(endRow)) {</span> |
| <span class="source-line-no">405</span><span id="line-405"> insertFileIntoStripe(level0Files, sf); // No metadata - goes to L0.</span> |
| <span class="source-line-no">406</span><span id="line-406"> ensureLevel0Metadata(sf);</span> |
| <span class="source-line-no">407</span><span id="line-407"> } else if (!isOpen(startRow) && !isOpen(endRow) && nonOpenRowCompare(startRow, endRow) >= 0) {</span> |
| <span class="source-line-no">408</span><span id="line-408"> LOG.error("Unexpected metadata - start row [" + Bytes.toString(startRow) + "], end row ["</span> |
| <span class="source-line-no">409</span><span id="line-409"> + Bytes.toString(endRow) + "] in file [" + sf.getPath() + "], pushing to L0");</span> |
| <span class="source-line-no">410</span><span id="line-410"> insertFileIntoStripe(level0Files, sf); // Bad metadata - goes to L0 also.</span> |
| <span class="source-line-no">411</span><span id="line-411"> ensureLevel0Metadata(sf);</span> |
| <span class="source-line-no">412</span><span id="line-412"> } else {</span> |
| <span class="source-line-no">413</span><span id="line-413"> ArrayList<HStoreFile> stripe = candidateStripes.get(endRow);</span> |
| <span class="source-line-no">414</span><span id="line-414"> if (stripe == null) {</span> |
| <span class="source-line-no">415</span><span id="line-415"> stripe = new ArrayList<>();</span> |
| <span class="source-line-no">416</span><span id="line-416"> candidateStripes.put(endRow, stripe);</span> |
| <span class="source-line-no">417</span><span id="line-417"> }</span> |
| <span class="source-line-no">418</span><span id="line-418"> insertFileIntoStripe(stripe, sf);</span> |
| <span class="source-line-no">419</span><span id="line-419"> }</span> |
| <span class="source-line-no">420</span><span id="line-420"> }</span> |
| <span class="source-line-no">421</span><span id="line-421"> // Possible improvement - for variable-count stripes, if all the files are in L0, we can</span> |
| <span class="source-line-no">422</span><span id="line-422"> // instead create single, open-ended stripe with all files.</span> |
| <span class="source-line-no">423</span><span id="line-423"></span> |
| <span class="source-line-no">424</span><span id="line-424"> boolean hasOverlaps = false;</span> |
| <span class="source-line-no">425</span><span id="line-425"> byte[] expectedStartRow = null; // first stripe can start wherever</span> |
| <span class="source-line-no">426</span><span id="line-426"> Iterator<Map.Entry<byte[], ArrayList<HStoreFile>>> entryIter =</span> |
| <span class="source-line-no">427</span><span id="line-427"> candidateStripes.entrySet().iterator();</span> |
| <span class="source-line-no">428</span><span id="line-428"> while (entryIter.hasNext()) {</span> |
| <span class="source-line-no">429</span><span id="line-429"> Map.Entry<byte[], ArrayList<HStoreFile>> entry = entryIter.next();</span> |
| <span class="source-line-no">430</span><span id="line-430"> ArrayList<HStoreFile> files = entry.getValue();</span> |
| <span class="source-line-no">431</span><span id="line-431"> // Validate the file start rows, and remove the bad ones to level 0.</span> |
| <span class="source-line-no">432</span><span id="line-432"> for (int i = 0; i < files.size(); ++i) {</span> |
| <span class="source-line-no">433</span><span id="line-433"> HStoreFile sf = files.get(i);</span> |
| <span class="source-line-no">434</span><span id="line-434"> byte[] startRow = startOf(sf);</span> |
| <span class="source-line-no">435</span><span id="line-435"> if (expectedStartRow == null) {</span> |
| <span class="source-line-no">436</span><span id="line-436"> expectedStartRow = startRow; // ensure that first stripe is still consistent</span> |
| <span class="source-line-no">437</span><span id="line-437"> } else if (!rowEquals(expectedStartRow, startRow)) {</span> |
| <span class="source-line-no">438</span><span id="line-438"> hasOverlaps = true;</span> |
| <span class="source-line-no">439</span><span id="line-439"> LOG.warn("Store file doesn't fit into the tentative stripes - expected to start at ["</span> |
| <span class="source-line-no">440</span><span id="line-440"> + Bytes.toString(expectedStartRow) + "], but starts at [" + Bytes.toString(startRow)</span> |
| <span class="source-line-no">441</span><span id="line-441"> + "], to L0 it goes");</span> |
| <span class="source-line-no">442</span><span id="line-442"> HStoreFile badSf = files.remove(i);</span> |
| <span class="source-line-no">443</span><span id="line-443"> insertFileIntoStripe(level0Files, badSf);</span> |
| <span class="source-line-no">444</span><span id="line-444"> ensureLevel0Metadata(badSf);</span> |
| <span class="source-line-no">445</span><span id="line-445"> --i;</span> |
| <span class="source-line-no">446</span><span id="line-446"> }</span> |
| <span class="source-line-no">447</span><span id="line-447"> }</span> |
| <span class="source-line-no">448</span><span id="line-448"> // Check if any files from the candidate stripe are valid. If so, add a stripe.</span> |
| <span class="source-line-no">449</span><span id="line-449"> byte[] endRow = entry.getKey();</span> |
| <span class="source-line-no">450</span><span id="line-450"> if (!files.isEmpty()) {</span> |
| <span class="source-line-no">451</span><span id="line-451"> expectedStartRow = endRow; // Next stripe must start exactly at that key.</span> |
| <span class="source-line-no">452</span><span id="line-452"> } else {</span> |
| <span class="source-line-no">453</span><span id="line-453"> entryIter.remove();</span> |
| <span class="source-line-no">454</span><span id="line-454"> }</span> |
| <span class="source-line-no">455</span><span id="line-455"> }</span> |
| <span class="source-line-no">456</span><span id="line-456"></span> |
| <span class="source-line-no">457</span><span id="line-457"> // In the end, there must be open ends on two sides. If not, and there were no errors i.e.</span> |
| <span class="source-line-no">458</span><span id="line-458"> // files are consistent, they might be coming from a split. We will treat the boundaries</span> |
| <span class="source-line-no">459</span><span id="line-459"> // as open keys anyway, and log the message.</span> |
| <span class="source-line-no">460</span><span id="line-460"> // If there were errors, we'll play it safe and dump everything into L0.</span> |
| <span class="source-line-no">461</span><span id="line-461"> if (!candidateStripes.isEmpty()) {</span> |
| <span class="source-line-no">462</span><span id="line-462"> HStoreFile firstFile = candidateStripes.firstEntry().getValue().get(0);</span> |
| <span class="source-line-no">463</span><span id="line-463"> boolean isOpen = isOpen(startOf(firstFile)) && isOpen(candidateStripes.lastKey());</span> |
| <span class="source-line-no">464</span><span id="line-464"> if (!isOpen) {</span> |
| <span class="source-line-no">465</span><span id="line-465"> LOG.warn("The range of the loaded files does not cover full key space: from ["</span> |
| <span class="source-line-no">466</span><span id="line-466"> + Bytes.toString(startOf(firstFile)) + "], to ["</span> |
| <span class="source-line-no">467</span><span id="line-467"> + Bytes.toString(candidateStripes.lastKey()) + "]");</span> |
| <span class="source-line-no">468</span><span id="line-468"> if (!hasOverlaps) {</span> |
| <span class="source-line-no">469</span><span id="line-469"> ensureEdgeStripeMetadata(candidateStripes.firstEntry().getValue(), true);</span> |
| <span class="source-line-no">470</span><span id="line-470"> ensureEdgeStripeMetadata(candidateStripes.lastEntry().getValue(), false);</span> |
| <span class="source-line-no">471</span><span id="line-471"> } else {</span> |
| <span class="source-line-no">472</span><span id="line-472"> LOG.warn("Inconsistent files, everything goes to L0.");</span> |
| <span class="source-line-no">473</span><span id="line-473"> for (ArrayList<HStoreFile> files : candidateStripes.values()) {</span> |
| <span class="source-line-no">474</span><span id="line-474"> for (HStoreFile sf : files) {</span> |
| <span class="source-line-no">475</span><span id="line-475"> insertFileIntoStripe(level0Files, sf);</span> |
| <span class="source-line-no">476</span><span id="line-476"> ensureLevel0Metadata(sf);</span> |
| <span class="source-line-no">477</span><span id="line-477"> }</span> |
| <span class="source-line-no">478</span><span id="line-478"> }</span> |
| <span class="source-line-no">479</span><span id="line-479"> candidateStripes.clear();</span> |
| <span class="source-line-no">480</span><span id="line-480"> }</span> |
| <span class="source-line-no">481</span><span id="line-481"> }</span> |
| <span class="source-line-no">482</span><span id="line-482"> }</span> |
| <span class="source-line-no">483</span><span id="line-483"></span> |
| <span class="source-line-no">484</span><span id="line-484"> // Copy the results into the fields.</span> |
| <span class="source-line-no">485</span><span id="line-485"> State state = new State();</span> |
| <span class="source-line-no">486</span><span id="line-486"> state.level0Files = ImmutableList.copyOf(level0Files);</span> |
| <span class="source-line-no">487</span><span id="line-487"> state.stripeFiles = new ArrayList<>(candidateStripes.size());</span> |
| <span class="source-line-no">488</span><span id="line-488"> state.stripeEndRows = new byte[Math.max(0, candidateStripes.size() - 1)][];</span> |
| <span class="source-line-no">489</span><span id="line-489"> ArrayList<HStoreFile> newAllFiles = new ArrayList<>(level0Files);</span> |
| <span class="source-line-no">490</span><span id="line-490"> int i = candidateStripes.size() - 1;</span> |
| <span class="source-line-no">491</span><span id="line-491"> for (Map.Entry<byte[], ArrayList<HStoreFile>> entry : candidateStripes.entrySet()) {</span> |
| <span class="source-line-no">492</span><span id="line-492"> state.stripeFiles.add(ImmutableList.copyOf(entry.getValue()));</span> |
| <span class="source-line-no">493</span><span id="line-493"> newAllFiles.addAll(entry.getValue());</span> |
| <span class="source-line-no">494</span><span id="line-494"> if (i > 0) {</span> |
| <span class="source-line-no">495</span><span id="line-495"> state.stripeEndRows[state.stripeFiles.size() - 1] = entry.getKey();</span> |
| <span class="source-line-no">496</span><span id="line-496"> }</span> |
| <span class="source-line-no">497</span><span id="line-497"> --i;</span> |
| <span class="source-line-no">498</span><span id="line-498"> }</span> |
| <span class="source-line-no">499</span><span id="line-499"> state.allFilesCached = ImmutableList.copyOf(newAllFiles);</span> |
| <span class="source-line-no">500</span><span id="line-500"> this.state = state;</span> |
| <span class="source-line-no">501</span><span id="line-501"> debugDumpState("Files loaded");</span> |
| <span class="source-line-no">502</span><span id="line-502"> }</span> |
| <span class="source-line-no">503</span><span id="line-503"></span> |
| <span class="source-line-no">504</span><span id="line-504"> private void ensureEdgeStripeMetadata(ArrayList<HStoreFile> stripe, boolean isFirst) {</span> |
| <span class="source-line-no">505</span><span id="line-505"> HashMap<HStoreFile, byte[]> targetMap = isFirst ? fileStarts : fileEnds;</span> |
| <span class="source-line-no">506</span><span id="line-506"> for (HStoreFile sf : stripe) {</span> |
| <span class="source-line-no">507</span><span id="line-507"> targetMap.put(sf, OPEN_KEY);</span> |
| <span class="source-line-no">508</span><span id="line-508"> }</span> |
| <span class="source-line-no">509</span><span id="line-509"> }</span> |
| <span class="source-line-no">510</span><span id="line-510"></span> |
| <span class="source-line-no">511</span><span id="line-511"> private void ensureLevel0Metadata(HStoreFile sf) {</span> |
| <span class="source-line-no">512</span><span id="line-512"> if (!isInvalid(startOf(sf))) this.fileStarts.put(sf, INVALID_KEY_IN_MAP);</span> |
| <span class="source-line-no">513</span><span id="line-513"> if (!isInvalid(endOf(sf))) this.fileEnds.put(sf, INVALID_KEY_IN_MAP);</span> |
| <span class="source-line-no">514</span><span id="line-514"> }</span> |
| <span class="source-line-no">515</span><span id="line-515"></span> |
| <span class="source-line-no">516</span><span id="line-516"> private void debugDumpState(String string) {</span> |
| <span class="source-line-no">517</span><span id="line-517"> if (!LOG.isDebugEnabled()) return;</span> |
| <span class="source-line-no">518</span><span id="line-518"> StringBuilder sb = new StringBuilder();</span> |
| <span class="source-line-no">519</span><span id="line-519"> sb.append("\n" + string + "; current stripe state is as such:");</span> |
| <span class="source-line-no">520</span><span id="line-520"> sb.append("\n level 0 with ").append(state.level0Files.size())</span> |
| <span class="source-line-no">521</span><span id="line-521"> .append(" files: " + TraditionalBinaryPrefix</span> |
| <span class="source-line-no">522</span><span id="line-522"> .long2String(StripeCompactionPolicy.getTotalFileSize(state.level0Files), "", 1) + ";");</span> |
| <span class="source-line-no">523</span><span id="line-523"> for (int i = 0; i < state.stripeFiles.size(); ++i) {</span> |
| <span class="source-line-no">524</span><span id="line-524"> String endRow = (i == state.stripeEndRows.length)</span> |
| <span class="source-line-no">525</span><span id="line-525"> ? "(end)"</span> |
| <span class="source-line-no">526</span><span id="line-526"> : "[" + Bytes.toString(state.stripeEndRows[i]) + "]";</span> |
| <span class="source-line-no">527</span><span id="line-527"> sb.append("\n stripe ending in ").append(endRow).append(" with ")</span> |
| <span class="source-line-no">528</span><span id="line-528"> .append(state.stripeFiles.get(i).size())</span> |
| <span class="source-line-no">529</span><span id="line-529"> .append(" files: " + TraditionalBinaryPrefix.long2String(</span> |
| <span class="source-line-no">530</span><span id="line-530"> StripeCompactionPolicy.getTotalFileSize(state.stripeFiles.get(i)), "", 1) + ";");</span> |
| <span class="source-line-no">531</span><span id="line-531"> }</span> |
| <span class="source-line-no">532</span><span id="line-532"> sb.append("\n").append(state.stripeFiles.size()).append(" stripes total.");</span> |
| <span class="source-line-no">533</span><span id="line-533"> sb.append("\n").append(getStorefileCount()).append(" files total.");</span> |
| <span class="source-line-no">534</span><span id="line-534"> LOG.debug(sb.toString());</span> |
| <span class="source-line-no">535</span><span id="line-535"> }</span> |
| <span class="source-line-no">536</span><span id="line-536"></span> |
| <span class="source-line-no">537</span><span id="line-537"> /**</span> |
| <span class="source-line-no">538</span><span id="line-538"> * Checks whether the key indicates an open interval boundary (i.e. infinity).</span> |
| <span class="source-line-no">539</span><span id="line-539"> */</span> |
| <span class="source-line-no">540</span><span id="line-540"> private static final boolean isOpen(byte[] key) {</span> |
| <span class="source-line-no">541</span><span id="line-541"> return key != null && key.length == 0;</span> |
| <span class="source-line-no">542</span><span id="line-542"> }</span> |
| <span class="source-line-no">543</span><span id="line-543"></span> |
| <span class="source-line-no">544</span><span id="line-544"> private static final boolean isOpen(Cell key) {</span> |
| <span class="source-line-no">545</span><span id="line-545"> return key != null && key.getRowLength() == 0;</span> |
| <span class="source-line-no">546</span><span id="line-546"> }</span> |
| <span class="source-line-no">547</span><span id="line-547"></span> |
| <span class="source-line-no">548</span><span id="line-548"> /**</span> |
| <span class="source-line-no">549</span><span id="line-549"> * Checks whether the key is invalid (e.g. from an L0 file, or non-stripe-compacted files).</span> |
| <span class="source-line-no">550</span><span id="line-550"> */</span> |
| <span class="source-line-no">551</span><span id="line-551"> private static final boolean isInvalid(byte[] key) {</span> |
| <span class="source-line-no">552</span><span id="line-552"> // No need to use Arrays.equals because INVALID_KEY is null</span> |
| <span class="source-line-no">553</span><span id="line-553"> return key == INVALID_KEY;</span> |
| <span class="source-line-no">554</span><span id="line-554"> }</span> |
| <span class="source-line-no">555</span><span id="line-555"></span> |
| <span class="source-line-no">556</span><span id="line-556"> /**</span> |
| <span class="source-line-no">557</span><span id="line-557"> * Compare two keys for equality.</span> |
| <span class="source-line-no">558</span><span id="line-558"> */</span> |
| <span class="source-line-no">559</span><span id="line-559"> private final boolean rowEquals(byte[] k1, byte[] k2) {</span> |
| <span class="source-line-no">560</span><span id="line-560"> return Bytes.equals(k1, 0, k1.length, k2, 0, k2.length);</span> |
| <span class="source-line-no">561</span><span id="line-561"> }</span> |
| <span class="source-line-no">562</span><span id="line-562"></span> |
| <span class="source-line-no">563</span><span id="line-563"> /**</span> |
| <span class="source-line-no">564</span><span id="line-564"> * Compare two keys. Keys must not be open (isOpen(row) == false).</span> |
| <span class="source-line-no">565</span><span id="line-565"> */</span> |
| <span class="source-line-no">566</span><span id="line-566"> private final int nonOpenRowCompare(byte[] k1, byte[] k2) {</span> |
| <span class="source-line-no">567</span><span id="line-567"> assert !isOpen(k1) && !isOpen(k2);</span> |
| <span class="source-line-no">568</span><span id="line-568"> return Bytes.compareTo(k1, k2);</span> |
| <span class="source-line-no">569</span><span id="line-569"> }</span> |
| <span class="source-line-no">570</span><span id="line-570"></span> |
| <span class="source-line-no">571</span><span id="line-571"> private final int nonOpenRowCompare(Cell k1, byte[] k2) {</span> |
| <span class="source-line-no">572</span><span id="line-572"> assert !isOpen(k1) && !isOpen(k2);</span> |
| <span class="source-line-no">573</span><span id="line-573"> return cellComparator.compareRows(k1, k2, 0, k2.length);</span> |
| <span class="source-line-no">574</span><span id="line-574"> }</span> |
| <span class="source-line-no">575</span><span id="line-575"></span> |
| <span class="source-line-no">576</span><span id="line-576"> /**</span> |
| <span class="source-line-no">577</span><span id="line-577"> * Finds the stripe index by end row.</span> |
| <span class="source-line-no">578</span><span id="line-578"> */</span> |
| <span class="source-line-no">579</span><span id="line-579"> private final int findStripeIndexByEndRow(byte[] endRow) {</span> |
| <span class="source-line-no">580</span><span id="line-580"> assert !isInvalid(endRow);</span> |
| <span class="source-line-no">581</span><span id="line-581"> if (isOpen(endRow)) return state.stripeEndRows.length;</span> |
| <span class="source-line-no">582</span><span id="line-582"> return Arrays.binarySearch(state.stripeEndRows, endRow, Bytes.BYTES_COMPARATOR);</span> |
| <span class="source-line-no">583</span><span id="line-583"> }</span> |
| <span class="source-line-no">584</span><span id="line-584"></span> |
| <span class="source-line-no">585</span><span id="line-585"> /**</span> |
| <span class="source-line-no">586</span><span id="line-586"> * Finds the stripe index for the stripe containing a row provided externally for get/scan.</span> |
| <span class="source-line-no">587</span><span id="line-587"> */</span> |
| <span class="source-line-no">588</span><span id="line-588"> private final int findStripeForRow(byte[] row, boolean isStart) {</span> |
| <span class="source-line-no">589</span><span id="line-589"> if (isStart && Arrays.equals(row, HConstants.EMPTY_START_ROW)) return 0;</span> |
| <span class="source-line-no">590</span><span id="line-590"> if (!isStart && Arrays.equals(row, HConstants.EMPTY_END_ROW)) {</span> |
| <span class="source-line-no">591</span><span id="line-591"> return state.stripeFiles.size() - 1;</span> |
| <span class="source-line-no">592</span><span id="line-592"> }</span> |
| <span class="source-line-no">593</span><span id="line-593"> // If there's an exact match below, a stripe ends at "row". Stripe right boundary is</span> |
| <span class="source-line-no">594</span><span id="line-594"> // exclusive, so that means the row is in the next stripe; thus, we need to add one to index.</span> |
| <span class="source-line-no">595</span><span id="line-595"> // If there's no match, the return value of binarySearch is (-(insertion point) - 1), where</span> |
| <span class="source-line-no">596</span><span id="line-596"> // insertion point is the index of the next greater element, or list size if none. The</span> |
| <span class="source-line-no">597</span><span id="line-597"> // insertion point happens to be exactly what we need, so we need to add one to the result.</span> |
| <span class="source-line-no">598</span><span id="line-598"> return Math.abs(Arrays.binarySearch(state.stripeEndRows, row, Bytes.BYTES_COMPARATOR) + 1);</span> |
| <span class="source-line-no">599</span><span id="line-599"> }</span> |
| <span class="source-line-no">600</span><span id="line-600"></span> |
| <span class="source-line-no">601</span><span id="line-601"> @Override</span> |
| <span class="source-line-no">602</span><span id="line-602"> public final byte[] getStartRow(int stripeIndex) {</span> |
| <span class="source-line-no">603</span><span id="line-603"> return (stripeIndex == 0 ? OPEN_KEY : state.stripeEndRows[stripeIndex - 1]);</span> |
| <span class="source-line-no">604</span><span id="line-604"> }</span> |
| <span class="source-line-no">605</span><span id="line-605"></span> |
| <span class="source-line-no">606</span><span id="line-606"> @Override</span> |
| <span class="source-line-no">607</span><span id="line-607"> public final byte[] getEndRow(int stripeIndex) {</span> |
| <span class="source-line-no">608</span><span id="line-608"> return (stripeIndex == state.stripeEndRows.length</span> |
| <span class="source-line-no">609</span><span id="line-609"> ? OPEN_KEY</span> |
| <span class="source-line-no">610</span><span id="line-610"> : state.stripeEndRows[stripeIndex]);</span> |
| <span class="source-line-no">611</span><span id="line-611"> }</span> |
| <span class="source-line-no">612</span><span id="line-612"></span> |
| <span class="source-line-no">613</span><span id="line-613"> private byte[] startOf(HStoreFile sf) {</span> |
| <span class="source-line-no">614</span><span id="line-614"> byte[] result = fileStarts.get(sf);</span> |
| <span class="source-line-no">615</span><span id="line-615"></span> |
| <span class="source-line-no">616</span><span id="line-616"> // result and INVALID_KEY_IN_MAP are compared _only_ by reference on purpose here as the latter</span> |
| <span class="source-line-no">617</span><span id="line-617"> // serves only as a marker and is not to be confused with other empty byte arrays.</span> |
| <span class="source-line-no">618</span><span id="line-618"> // See Javadoc of INVALID_KEY_IN_MAP for more information</span> |
| <span class="source-line-no">619</span><span id="line-619"> return (result == null) ? sf.getMetadataValue(STRIPE_START_KEY)</span> |
| <span class="source-line-no">620</span><span id="line-620"> : result == INVALID_KEY_IN_MAP ? INVALID_KEY</span> |
| <span class="source-line-no">621</span><span id="line-621"> : result;</span> |
| <span class="source-line-no">622</span><span id="line-622"> }</span> |
| <span class="source-line-no">623</span><span id="line-623"></span> |
| <span class="source-line-no">624</span><span id="line-624"> private byte[] endOf(HStoreFile sf) {</span> |
| <span class="source-line-no">625</span><span id="line-625"> byte[] result = fileEnds.get(sf);</span> |
| <span class="source-line-no">626</span><span id="line-626"></span> |
| <span class="source-line-no">627</span><span id="line-627"> // result and INVALID_KEY_IN_MAP are compared _only_ by reference on purpose here as the latter</span> |
| <span class="source-line-no">628</span><span id="line-628"> // serves only as a marker and is not to be confused with other empty byte arrays.</span> |
| <span class="source-line-no">629</span><span id="line-629"> // See Javadoc of INVALID_KEY_IN_MAP for more information</span> |
| <span class="source-line-no">630</span><span id="line-630"> return (result == null) ? sf.getMetadataValue(STRIPE_END_KEY)</span> |
| <span class="source-line-no">631</span><span id="line-631"> : result == INVALID_KEY_IN_MAP ? INVALID_KEY</span> |
| <span class="source-line-no">632</span><span id="line-632"> : result;</span> |
| <span class="source-line-no">633</span><span id="line-633"> }</span> |
| <span class="source-line-no">634</span><span id="line-634"></span> |
| <span class="source-line-no">635</span><span id="line-635"> /**</span> |
| <span class="source-line-no">636</span><span id="line-636"> * Inserts a file in the correct place (by seqnum) in a stripe copy.</span> |
| <span class="source-line-no">637</span><span id="line-637"> * @param stripe Stripe copy to insert into.</span> |
| <span class="source-line-no">638</span><span id="line-638"> * @param sf File to insert.</span> |
| <span class="source-line-no">639</span><span id="line-639"> */</span> |
| <span class="source-line-no">640</span><span id="line-640"> private static void insertFileIntoStripe(ArrayList<HStoreFile> stripe, HStoreFile sf) {</span> |
| <span class="source-line-no">641</span><span id="line-641"> // The only operation for which sorting of the files matters is KeyBefore. Therefore,</span> |
| <span class="source-line-no">642</span><span id="line-642"> // we will store the file in reverse order by seqNum from the outset.</span> |
| <span class="source-line-no">643</span><span id="line-643"> for (int insertBefore = 0;; ++insertBefore) {</span> |
| <span class="source-line-no">644</span><span id="line-644"> if (</span> |
| <span class="source-line-no">645</span><span id="line-645"> insertBefore == stripe.size()</span> |
| <span class="source-line-no">646</span><span id="line-646"> || (StoreFileComparators.SEQ_ID.compare(sf, stripe.get(insertBefore)) >= 0)</span> |
| <span class="source-line-no">647</span><span id="line-647"> ) {</span> |
| <span class="source-line-no">648</span><span id="line-648"> stripe.add(insertBefore, sf);</span> |
| <span class="source-line-no">649</span><span id="line-649"> break;</span> |
| <span class="source-line-no">650</span><span id="line-650"> }</span> |
| <span class="source-line-no">651</span><span id="line-651"> }</span> |
| <span class="source-line-no">652</span><span id="line-652"> }</span> |
| <span class="source-line-no">653</span><span id="line-653"></span> |
| <span class="source-line-no">654</span><span id="line-654"> /**</span> |
| <span class="source-line-no">655</span><span id="line-655"> * An extension of ConcatenatedLists that has several peculiar properties. First, one can cut the</span> |
| <span class="source-line-no">656</span><span id="line-656"> * tail of the logical list by removing last several sub-lists. Second, items can be removed thru</span> |
| <span class="source-line-no">657</span><span id="line-657"> * iterator. Third, if the sub-lists are immutable, they are replaced with mutable copies when</span> |
| <span class="source-line-no">658</span><span id="line-658"> * needed. On average KeyBefore operation will contain half the stripes as potential candidates,</span> |
| <span class="source-line-no">659</span><span id="line-659"> * but will quickly cut down on them as it finds something in the more likely ones; thus, the</span> |
| <span class="source-line-no">660</span><span id="line-660"> * above allow us to avoid unnecessary copying of a bunch of lists.</span> |
| <span class="source-line-no">661</span><span id="line-661"> */</span> |
| <span class="source-line-no">662</span><span id="line-662"> private static class KeyBeforeConcatenatedLists extends ConcatenatedLists<HStoreFile> {</span> |
| <span class="source-line-no">663</span><span id="line-663"> @Override</span> |
| <span class="source-line-no">664</span><span id="line-664"> public java.util.Iterator<HStoreFile> iterator() {</span> |
| <span class="source-line-no">665</span><span id="line-665"> return new Iterator();</span> |
| <span class="source-line-no">666</span><span id="line-666"> }</span> |
| <span class="source-line-no">667</span><span id="line-667"></span> |
| <span class="source-line-no">668</span><span id="line-668"> public class Iterator extends ConcatenatedLists<HStoreFile>.Iterator {</span> |
| <span class="source-line-no">669</span><span id="line-669"> public ArrayList<List<HStoreFile>> getComponents() {</span> |
| <span class="source-line-no">670</span><span id="line-670"> return components;</span> |
| <span class="source-line-no">671</span><span id="line-671"> }</span> |
| <span class="source-line-no">672</span><span id="line-672"></span> |
| <span class="source-line-no">673</span><span id="line-673"> public void removeComponents(int startIndex) {</span> |
| <span class="source-line-no">674</span><span id="line-674"> List<List<HStoreFile>> subList = components.subList(startIndex, components.size());</span> |
| <span class="source-line-no">675</span><span id="line-675"> for (List<HStoreFile> entry : subList) {</span> |
| <span class="source-line-no">676</span><span id="line-676"> size -= entry.size();</span> |
| <span class="source-line-no">677</span><span id="line-677"> }</span> |
| <span class="source-line-no">678</span><span id="line-678"> assert size >= 0;</span> |
| <span class="source-line-no">679</span><span id="line-679"> subList.clear();</span> |
| <span class="source-line-no">680</span><span id="line-680"> }</span> |
| <span class="source-line-no">681</span><span id="line-681"></span> |
| <span class="source-line-no">682</span><span id="line-682"> @Override</span> |
| <span class="source-line-no">683</span><span id="line-683"> public void remove() {</span> |
| <span class="source-line-no">684</span><span id="line-684"> if (!this.nextWasCalled) {</span> |
| <span class="source-line-no">685</span><span id="line-685"> throw new IllegalStateException("No element to remove");</span> |
| <span class="source-line-no">686</span><span id="line-686"> }</span> |
| <span class="source-line-no">687</span><span id="line-687"> this.nextWasCalled = false;</span> |
| <span class="source-line-no">688</span><span id="line-688"> List<HStoreFile> src = components.get(currentComponent);</span> |
| <span class="source-line-no">689</span><span id="line-689"> if (src instanceof ImmutableList<?>) {</span> |
| <span class="source-line-no">690</span><span id="line-690"> src = new ArrayList<>(src);</span> |
| <span class="source-line-no">691</span><span id="line-691"> components.set(currentComponent, src);</span> |
| <span class="source-line-no">692</span><span id="line-692"> }</span> |
| <span class="source-line-no">693</span><span id="line-693"> src.remove(indexWithinComponent);</span> |
| <span class="source-line-no">694</span><span id="line-694"> --size;</span> |
| <span class="source-line-no">695</span><span id="line-695"> --indexWithinComponent;</span> |
| <span class="source-line-no">696</span><span id="line-696"> if (src.isEmpty()) {</span> |
| <span class="source-line-no">697</span><span id="line-697"> components.remove(currentComponent); // indexWithinComponent is already -1 here.</span> |
| <span class="source-line-no">698</span><span id="line-698"> }</span> |
| <span class="source-line-no">699</span><span id="line-699"> }</span> |
| <span class="source-line-no">700</span><span id="line-700"> }</span> |
| <span class="source-line-no">701</span><span id="line-701"> }</span> |
| <span class="source-line-no">702</span><span id="line-702"></span> |
| <span class="source-line-no">703</span><span id="line-703"> /**</span> |
| <span class="source-line-no">704</span><span id="line-704"> * Non-static helper class for merging compaction or flush results. Since we want to merge them</span> |
| <span class="source-line-no">705</span><span id="line-705"> * atomically (more or less), it operates on lazy copies, then creates a new state object and puts</span> |
| <span class="source-line-no">706</span><span id="line-706"> * it in place.</span> |
| <span class="source-line-no">707</span><span id="line-707"> */</span> |
| <span class="source-line-no">708</span><span id="line-708"> private class CompactionOrFlushMergeCopy {</span> |
| <span class="source-line-no">709</span><span id="line-709"> private ArrayList<List<HStoreFile>> stripeFiles = null;</span> |
| <span class="source-line-no">710</span><span id="line-710"> private ArrayList<HStoreFile> level0Files = null;</span> |
| <span class="source-line-no">711</span><span id="line-711"> private ArrayList<byte[]> stripeEndRows = null;</span> |
| <span class="source-line-no">712</span><span id="line-712"></span> |
| <span class="source-line-no">713</span><span id="line-713"> private Collection<HStoreFile> compactedFiles = null;</span> |
| <span class="source-line-no">714</span><span id="line-714"> private Collection<HStoreFile> results = null;</span> |
| <span class="source-line-no">715</span><span id="line-715"></span> |
| <span class="source-line-no">716</span><span id="line-716"> private List<HStoreFile> l0Results = new ArrayList<>();</span> |
| <span class="source-line-no">717</span><span id="line-717"> private final boolean isFlush;</span> |
| <span class="source-line-no">718</span><span id="line-718"></span> |
| <span class="source-line-no">719</span><span id="line-719"> public CompactionOrFlushMergeCopy(boolean isFlush) {</span> |
| <span class="source-line-no">720</span><span id="line-720"> // Create a lazy mutable copy (other fields are so lazy they start out as nulls).</span> |
| <span class="source-line-no">721</span><span id="line-721"> this.stripeFiles = new ArrayList<>(StripeStoreFileManager.this.state.stripeFiles);</span> |
| <span class="source-line-no">722</span><span id="line-722"> this.isFlush = isFlush;</span> |
| <span class="source-line-no">723</span><span id="line-723"> }</span> |
| <span class="source-line-no">724</span><span id="line-724"></span> |
| <span class="source-line-no">725</span><span id="line-725"> private void mergeResults(Collection<HStoreFile> compactedFiles,</span> |
| <span class="source-line-no">726</span><span id="line-726"> Collection<HStoreFile> results) {</span> |
| <span class="source-line-no">727</span><span id="line-727"> assert this.compactedFiles == null && this.results == null;</span> |
| <span class="source-line-no">728</span><span id="line-728"> this.compactedFiles = compactedFiles;</span> |
| <span class="source-line-no">729</span><span id="line-729"> this.results = results;</span> |
| <span class="source-line-no">730</span><span id="line-730"> // Do logical processing.</span> |
| <span class="source-line-no">731</span><span id="line-731"> if (!isFlush) {</span> |
| <span class="source-line-no">732</span><span id="line-732"> removeCompactedFiles();</span> |
| <span class="source-line-no">733</span><span id="line-733"> }</span> |
| <span class="source-line-no">734</span><span id="line-734"> TreeMap<byte[], HStoreFile> newStripes = processResults();</span> |
| <span class="source-line-no">735</span><span id="line-735"> if (newStripes != null) {</span> |
| <span class="source-line-no">736</span><span id="line-736"> processNewCandidateStripes(newStripes);</span> |
| <span class="source-line-no">737</span><span id="line-737"> }</span> |
| <span class="source-line-no">738</span><span id="line-738"> // Create new state and update parent.</span> |
| <span class="source-line-no">739</span><span id="line-739"> State state = createNewState(false);</span> |
| <span class="source-line-no">740</span><span id="line-740"> StripeStoreFileManager.this.state = state;</span> |
| <span class="source-line-no">741</span><span id="line-741"> updateMetadataMaps();</span> |
| <span class="source-line-no">742</span><span id="line-742"> }</span> |
| <span class="source-line-no">743</span><span id="line-743"></span> |
| <span class="source-line-no">744</span><span id="line-744"> private void deleteResults(Collection<HStoreFile> compactedFiles) {</span> |
| <span class="source-line-no">745</span><span id="line-745"> this.compactedFiles = compactedFiles;</span> |
| <span class="source-line-no">746</span><span id="line-746"> // Create new state and update parent.</span> |
| <span class="source-line-no">747</span><span id="line-747"> State state = createNewState(true);</span> |
| <span class="source-line-no">748</span><span id="line-748"> StripeStoreFileManager.this.state = state;</span> |
| <span class="source-line-no">749</span><span id="line-749"> updateMetadataMaps();</span> |
| <span class="source-line-no">750</span><span id="line-750"> }</span> |
| <span class="source-line-no">751</span><span id="line-751"></span> |
| <span class="source-line-no">752</span><span id="line-752"> private State createNewState(boolean delCompactedFiles) {</span> |
| <span class="source-line-no">753</span><span id="line-753"> State oldState = StripeStoreFileManager.this.state;</span> |
| <span class="source-line-no">754</span><span id="line-754"> // Stripe count should be the same unless the end rows changed.</span> |
| <span class="source-line-no">755</span><span id="line-755"> assert oldState.stripeFiles.size() == this.stripeFiles.size() || this.stripeEndRows != null;</span> |
| <span class="source-line-no">756</span><span id="line-756"> State newState = new State();</span> |
| <span class="source-line-no">757</span><span id="line-757"> newState.level0Files =</span> |
| <span class="source-line-no">758</span><span id="line-758"> (this.level0Files == null) ? oldState.level0Files : ImmutableList.copyOf(this.level0Files);</span> |
| <span class="source-line-no">759</span><span id="line-759"> newState.stripeEndRows = (this.stripeEndRows == null)</span> |
| <span class="source-line-no">760</span><span id="line-760"> ? oldState.stripeEndRows</span> |
| <span class="source-line-no">761</span><span id="line-761"> : this.stripeEndRows.toArray(new byte[this.stripeEndRows.size()][]);</span> |
| <span class="source-line-no">762</span><span id="line-762"> newState.stripeFiles = new ArrayList<>(this.stripeFiles.size());</span> |
| <span class="source-line-no">763</span><span id="line-763"> for (List<HStoreFile> newStripe : this.stripeFiles) {</span> |
| <span class="source-line-no">764</span><span id="line-764"> newState.stripeFiles.add(newStripe instanceof ImmutableList<?></span> |
| <span class="source-line-no">765</span><span id="line-765"> ? (ImmutableList<HStoreFile>) newStripe</span> |
| <span class="source-line-no">766</span><span id="line-766"> : ImmutableList.copyOf(newStripe));</span> |
| <span class="source-line-no">767</span><span id="line-767"> }</span> |
| <span class="source-line-no">768</span><span id="line-768"></span> |
| <span class="source-line-no">769</span><span id="line-769"> List<HStoreFile> newAllFiles = new ArrayList<>(oldState.allFilesCached);</span> |
| <span class="source-line-no">770</span><span id="line-770"> List<HStoreFile> newAllCompactedFiles = new ArrayList<>(oldState.allCompactedFilesCached);</span> |
| <span class="source-line-no">771</span><span id="line-771"> if (!isFlush) {</span> |
| <span class="source-line-no">772</span><span id="line-772"> newAllFiles.removeAll(compactedFiles);</span> |
| <span class="source-line-no">773</span><span id="line-773"> if (delCompactedFiles) {</span> |
| <span class="source-line-no">774</span><span id="line-774"> newAllCompactedFiles.removeAll(compactedFiles);</span> |
| <span class="source-line-no">775</span><span id="line-775"> } else {</span> |
| <span class="source-line-no">776</span><span id="line-776"> newAllCompactedFiles.addAll(compactedFiles);</span> |
| <span class="source-line-no">777</span><span id="line-777"> }</span> |
| <span class="source-line-no">778</span><span id="line-778"> }</span> |
| <span class="source-line-no">779</span><span id="line-779"> if (results != null) {</span> |
| <span class="source-line-no">780</span><span id="line-780"> newAllFiles.addAll(results);</span> |
| <span class="source-line-no">781</span><span id="line-781"> }</span> |
| <span class="source-line-no">782</span><span id="line-782"> newState.allFilesCached = ImmutableList.copyOf(newAllFiles);</span> |
| <span class="source-line-no">783</span><span id="line-783"> newState.allCompactedFilesCached = ImmutableList.copyOf(newAllCompactedFiles);</span> |
| <span class="source-line-no">784</span><span id="line-784"> return newState;</span> |
| <span class="source-line-no">785</span><span id="line-785"> }</span> |
| <span class="source-line-no">786</span><span id="line-786"></span> |
| <span class="source-line-no">787</span><span id="line-787"> private void updateMetadataMaps() {</span> |
| <span class="source-line-no">788</span><span id="line-788"> StripeStoreFileManager parent = StripeStoreFileManager.this;</span> |
| <span class="source-line-no">789</span><span id="line-789"> if (!isFlush) {</span> |
| <span class="source-line-no">790</span><span id="line-790"> for (HStoreFile sf : this.compactedFiles) {</span> |
| <span class="source-line-no">791</span><span id="line-791"> parent.fileStarts.remove(sf);</span> |
| <span class="source-line-no">792</span><span id="line-792"> parent.fileEnds.remove(sf);</span> |
| <span class="source-line-no">793</span><span id="line-793"> }</span> |
| <span class="source-line-no">794</span><span id="line-794"> }</span> |
| <span class="source-line-no">795</span><span id="line-795"> if (this.l0Results != null) {</span> |
| <span class="source-line-no">796</span><span id="line-796"> for (HStoreFile sf : this.l0Results) {</span> |
| <span class="source-line-no">797</span><span id="line-797"> parent.ensureLevel0Metadata(sf);</span> |
| <span class="source-line-no">798</span><span id="line-798"> }</span> |
| <span class="source-line-no">799</span><span id="line-799"> }</span> |
| <span class="source-line-no">800</span><span id="line-800"> }</span> |
| <span class="source-line-no">801</span><span id="line-801"></span> |
| <span class="source-line-no">802</span><span id="line-802"> /**</span> |
| <span class="source-line-no">803</span><span id="line-803"> * @param index Index of the stripe we need.</span> |
| <span class="source-line-no">804</span><span id="line-804"> * @return A lazy stripe copy from current stripes.</span> |
| <span class="source-line-no">805</span><span id="line-805"> */</span> |
| <span class="source-line-no">806</span><span id="line-806"> private final ArrayList<HStoreFile> getStripeCopy(int index) {</span> |
| <span class="source-line-no">807</span><span id="line-807"> List<HStoreFile> stripeCopy = this.stripeFiles.get(index);</span> |
| <span class="source-line-no">808</span><span id="line-808"> ArrayList<HStoreFile> result = null;</span> |
| <span class="source-line-no">809</span><span id="line-809"> if (stripeCopy instanceof ImmutableList<?>) {</span> |
| <span class="source-line-no">810</span><span id="line-810"> result = new ArrayList<>(stripeCopy);</span> |
| <span class="source-line-no">811</span><span id="line-811"> this.stripeFiles.set(index, result);</span> |
| <span class="source-line-no">812</span><span id="line-812"> } else {</span> |
| <span class="source-line-no">813</span><span id="line-813"> result = (ArrayList<HStoreFile>) stripeCopy;</span> |
| <span class="source-line-no">814</span><span id="line-814"> }</span> |
| <span class="source-line-no">815</span><span id="line-815"> return result;</span> |
| <span class="source-line-no">816</span><span id="line-816"> }</span> |
| <span class="source-line-no">817</span><span id="line-817"></span> |
| <span class="source-line-no">818</span><span id="line-818"> /** Returns A lazy L0 copy from current state. */</span> |
| <span class="source-line-no">819</span><span id="line-819"> private final ArrayList<HStoreFile> getLevel0Copy() {</span> |
| <span class="source-line-no">820</span><span id="line-820"> if (this.level0Files == null) {</span> |
| <span class="source-line-no">821</span><span id="line-821"> this.level0Files = new ArrayList<>(StripeStoreFileManager.this.state.level0Files);</span> |
| <span class="source-line-no">822</span><span id="line-822"> }</span> |
| <span class="source-line-no">823</span><span id="line-823"> return this.level0Files;</span> |
| <span class="source-line-no">824</span><span id="line-824"> }</span> |
| <span class="source-line-no">825</span><span id="line-825"></span> |
| <span class="source-line-no">826</span><span id="line-826"> /**</span> |
| <span class="source-line-no">827</span><span id="line-827"> * Process new files, and add them either to the structure of existing stripes, or to the list</span> |
| <span class="source-line-no">828</span><span id="line-828"> * of new candidate stripes.</span> |
| <span class="source-line-no">829</span><span id="line-829"> * @return New candidate stripes.</span> |
| <span class="source-line-no">830</span><span id="line-830"> */</span> |
| <span class="source-line-no">831</span><span id="line-831"> private TreeMap<byte[], HStoreFile> processResults() {</span> |
| <span class="source-line-no">832</span><span id="line-832"> TreeMap<byte[], HStoreFile> newStripes = null;</span> |
| <span class="source-line-no">833</span><span id="line-833"> for (HStoreFile sf : this.results) {</span> |
| <span class="source-line-no">834</span><span id="line-834"> byte[] startRow = startOf(sf), endRow = endOf(sf);</span> |
| <span class="source-line-no">835</span><span id="line-835"> if (isInvalid(endRow) || isInvalid(startRow)) {</span> |
| <span class="source-line-no">836</span><span id="line-836"> if (!isFlush) {</span> |
| <span class="source-line-no">837</span><span id="line-837"> LOG.warn("The newly compacted file doesn't have stripes set: " + sf.getPath());</span> |
| <span class="source-line-no">838</span><span id="line-838"> }</span> |
| <span class="source-line-no">839</span><span id="line-839"> insertFileIntoStripe(getLevel0Copy(), sf);</span> |
| <span class="source-line-no">840</span><span id="line-840"> this.l0Results.add(sf);</span> |
| <span class="source-line-no">841</span><span id="line-841"> continue;</span> |
| <span class="source-line-no">842</span><span id="line-842"> }</span> |
| <span class="source-line-no">843</span><span id="line-843"> if (!this.stripeFiles.isEmpty()) {</span> |
| <span class="source-line-no">844</span><span id="line-844"> int stripeIndex = findStripeIndexByEndRow(endRow);</span> |
| <span class="source-line-no">845</span><span id="line-845"> if ((stripeIndex >= 0) && rowEquals(getStartRow(stripeIndex), startRow)) {</span> |
| <span class="source-line-no">846</span><span id="line-846"> // Simple/common case - add file to an existing stripe.</span> |
| <span class="source-line-no">847</span><span id="line-847"> insertFileIntoStripe(getStripeCopy(stripeIndex), sf);</span> |
| <span class="source-line-no">848</span><span id="line-848"> continue;</span> |
| <span class="source-line-no">849</span><span id="line-849"> }</span> |
| <span class="source-line-no">850</span><span id="line-850"> }</span> |
| <span class="source-line-no">851</span><span id="line-851"></span> |
| <span class="source-line-no">852</span><span id="line-852"> // Make a new candidate stripe.</span> |
| <span class="source-line-no">853</span><span id="line-853"> if (newStripes == null) {</span> |
| <span class="source-line-no">854</span><span id="line-854"> newStripes = new TreeMap<>(MAP_COMPARATOR);</span> |
| <span class="source-line-no">855</span><span id="line-855"> }</span> |
| <span class="source-line-no">856</span><span id="line-856"> HStoreFile oldSf = newStripes.put(endRow, sf);</span> |
| <span class="source-line-no">857</span><span id="line-857"> if (oldSf != null) {</span> |
| <span class="source-line-no">858</span><span id="line-858"> throw new IllegalStateException(</span> |
| <span class="source-line-no">859</span><span id="line-859"> "Compactor has produced multiple files for the stripe ending in ["</span> |
| <span class="source-line-no">860</span><span id="line-860"> + Bytes.toString(endRow) + "], found " + sf.getPath() + " and " + oldSf.getPath());</span> |
| <span class="source-line-no">861</span><span id="line-861"> }</span> |
| <span class="source-line-no">862</span><span id="line-862"> }</span> |
| <span class="source-line-no">863</span><span id="line-863"> return newStripes;</span> |
| <span class="source-line-no">864</span><span id="line-864"> }</span> |
| <span class="source-line-no">865</span><span id="line-865"></span> |
| <span class="source-line-no">866</span><span id="line-866"> /**</span> |
| <span class="source-line-no">867</span><span id="line-867"> * Remove compacted files.</span> |
| <span class="source-line-no">868</span><span id="line-868"> */</span> |
| <span class="source-line-no">869</span><span id="line-869"> private void removeCompactedFiles() {</span> |
| <span class="source-line-no">870</span><span id="line-870"> for (HStoreFile oldFile : this.compactedFiles) {</span> |
| <span class="source-line-no">871</span><span id="line-871"> byte[] oldEndRow = endOf(oldFile);</span> |
| <span class="source-line-no">872</span><span id="line-872"> List<HStoreFile> source = null;</span> |
| <span class="source-line-no">873</span><span id="line-873"> if (isInvalid(oldEndRow)) {</span> |
| <span class="source-line-no">874</span><span id="line-874"> source = getLevel0Copy();</span> |
| <span class="source-line-no">875</span><span id="line-875"> } else {</span> |
| <span class="source-line-no">876</span><span id="line-876"> int stripeIndex = findStripeIndexByEndRow(oldEndRow);</span> |
| <span class="source-line-no">877</span><span id="line-877"> if (stripeIndex < 0) {</span> |
| <span class="source-line-no">878</span><span id="line-878"> throw new IllegalStateException(</span> |
| <span class="source-line-no">879</span><span id="line-879"> "An allegedly compacted file [" + oldFile + "] does not belong"</span> |
| <span class="source-line-no">880</span><span id="line-880"> + " to a known stripe (end row - [" + Bytes.toString(oldEndRow) + "])");</span> |
| <span class="source-line-no">881</span><span id="line-881"> }</span> |
| <span class="source-line-no">882</span><span id="line-882"> source = getStripeCopy(stripeIndex);</span> |
| <span class="source-line-no">883</span><span id="line-883"> }</span> |
| <span class="source-line-no">884</span><span id="line-884"> if (!source.remove(oldFile)) {</span> |
| <span class="source-line-no">885</span><span id="line-885"> LOG.warn("An allegedly compacted file [{}] was not found", oldFile);</span> |
| <span class="source-line-no">886</span><span id="line-886"> }</span> |
| <span class="source-line-no">887</span><span id="line-887"> }</span> |
| <span class="source-line-no">888</span><span id="line-888"> }</span> |
| <span class="source-line-no">889</span><span id="line-889"></span> |
| <span class="source-line-no">890</span><span id="line-890"> /**</span> |
| <span class="source-line-no">891</span><span id="line-891"> * See {@link #addCompactionResults(Collection, Collection)} - updates the stripe list with new</span> |
| <span class="source-line-no">892</span><span id="line-892"> * candidate stripes/removes old stripes; produces new set of stripe end rows.</span> |
| <span class="source-line-no">893</span><span id="line-893"> * @param newStripes New stripes - files by end row.</span> |
| <span class="source-line-no">894</span><span id="line-894"> */</span> |
| <span class="source-line-no">895</span><span id="line-895"> private void processNewCandidateStripes(TreeMap<byte[], HStoreFile> newStripes) {</span> |
| <span class="source-line-no">896</span><span id="line-896"> // Validate that the removed and added aggregate ranges still make for a full key space.</span> |
| <span class="source-line-no">897</span><span id="line-897"> boolean hasStripes = !this.stripeFiles.isEmpty();</span> |
| <span class="source-line-no">898</span><span id="line-898"> this.stripeEndRows =</span> |
| <span class="source-line-no">899</span><span id="line-899"> new ArrayList<>(Arrays.asList(StripeStoreFileManager.this.state.stripeEndRows));</span> |
| <span class="source-line-no">900</span><span id="line-900"> int removeFrom = 0;</span> |
| <span class="source-line-no">901</span><span id="line-901"> byte[] firstStartRow = startOf(newStripes.firstEntry().getValue());</span> |
| <span class="source-line-no">902</span><span id="line-902"> byte[] lastEndRow = newStripes.lastKey();</span> |
| <span class="source-line-no">903</span><span id="line-903"> if (!hasStripes && (!isOpen(firstStartRow) || !isOpen(lastEndRow))) {</span> |
| <span class="source-line-no">904</span><span id="line-904"> throw new IllegalStateException("Newly created stripes do not cover the entire key space.");</span> |
| <span class="source-line-no">905</span><span id="line-905"> }</span> |
| <span class="source-line-no">906</span><span id="line-906"></span> |
| <span class="source-line-no">907</span><span id="line-907"> boolean canAddNewStripes = true;</span> |
| <span class="source-line-no">908</span><span id="line-908"> Collection<HStoreFile> filesForL0 = null;</span> |
| <span class="source-line-no">909</span><span id="line-909"> if (hasStripes) {</span> |
| <span class="source-line-no">910</span><span id="line-910"> // Determine which stripes will need to be removed because they conflict with new stripes.</span> |
| <span class="source-line-no">911</span><span id="line-911"> // The new boundaries should match old stripe boundaries, so we should get exact matches.</span> |
| <span class="source-line-no">912</span><span id="line-912"> if (isOpen(firstStartRow)) {</span> |
| <span class="source-line-no">913</span><span id="line-913"> removeFrom = 0;</span> |
| <span class="source-line-no">914</span><span id="line-914"> } else {</span> |
| <span class="source-line-no">915</span><span id="line-915"> removeFrom = findStripeIndexByEndRow(firstStartRow);</span> |
| <span class="source-line-no">916</span><span id="line-916"> if (removeFrom < 0) {</span> |
| <span class="source-line-no">917</span><span id="line-917"> throw new IllegalStateException("Compaction is trying to add a bad range.");</span> |
| <span class="source-line-no">918</span><span id="line-918"> }</span> |
| <span class="source-line-no">919</span><span id="line-919"> ++removeFrom;</span> |
| <span class="source-line-no">920</span><span id="line-920"> }</span> |
| <span class="source-line-no">921</span><span id="line-921"> int removeTo = findStripeIndexByEndRow(lastEndRow);</span> |
| <span class="source-line-no">922</span><span id="line-922"> if (removeTo < 0) {</span> |
| <span class="source-line-no">923</span><span id="line-923"> throw new IllegalStateException("Compaction is trying to add a bad range.");</span> |
| <span class="source-line-no">924</span><span id="line-924"> }</span> |
| <span class="source-line-no">925</span><span id="line-925"> // See if there are files in the stripes we are trying to replace.</span> |
| <span class="source-line-no">926</span><span id="line-926"> ArrayList<HStoreFile> conflictingFiles = new ArrayList<>();</span> |
| <span class="source-line-no">927</span><span id="line-927"> for (int removeIndex = removeTo; removeIndex >= removeFrom; --removeIndex) {</span> |
| <span class="source-line-no">928</span><span id="line-928"> conflictingFiles.addAll(this.stripeFiles.get(removeIndex));</span> |
| <span class="source-line-no">929</span><span id="line-929"> }</span> |
| <span class="source-line-no">930</span><span id="line-930"> if (!conflictingFiles.isEmpty()) {</span> |
| <span class="source-line-no">931</span><span id="line-931"> // This can be caused by two things - concurrent flush into stripes, or a bug.</span> |
| <span class="source-line-no">932</span><span id="line-932"> // Unfortunately, we cannot tell them apart without looking at timing or something</span> |
| <span class="source-line-no">933</span><span id="line-933"> // like that. We will assume we are dealing with a flush and dump it into L0.</span> |
| <span class="source-line-no">934</span><span id="line-934"> if (isFlush) {</span> |
| <span class="source-line-no">935</span><span id="line-935"> long newSize = StripeCompactionPolicy.getTotalFileSize(newStripes.values());</span> |
| <span class="source-line-no">936</span><span id="line-936"> LOG.warn("Stripes were created by a flush, but results of size " + newSize</span> |
| <span class="source-line-no">937</span><span id="line-937"> + " cannot be added because the stripes have changed");</span> |
| <span class="source-line-no">938</span><span id="line-938"> canAddNewStripes = false;</span> |
| <span class="source-line-no">939</span><span id="line-939"> filesForL0 = newStripes.values();</span> |
| <span class="source-line-no">940</span><span id="line-940"> } else {</span> |
| <span class="source-line-no">941</span><span id="line-941"> long oldSize = StripeCompactionPolicy.getTotalFileSize(conflictingFiles);</span> |
| <span class="source-line-no">942</span><span id="line-942"> LOG.info(conflictingFiles.size() + " conflicting files (likely created by a flush) "</span> |
| <span class="source-line-no">943</span><span id="line-943"> + " of size " + oldSize + " are moved to L0 due to concurrent stripe change");</span> |
| <span class="source-line-no">944</span><span id="line-944"> filesForL0 = conflictingFiles;</span> |
| <span class="source-line-no">945</span><span id="line-945"> }</span> |
| <span class="source-line-no">946</span><span id="line-946"> if (filesForL0 != null) {</span> |
| <span class="source-line-no">947</span><span id="line-947"> for (HStoreFile sf : filesForL0) {</span> |
| <span class="source-line-no">948</span><span id="line-948"> insertFileIntoStripe(getLevel0Copy(), sf);</span> |
| <span class="source-line-no">949</span><span id="line-949"> }</span> |
| <span class="source-line-no">950</span><span id="line-950"> l0Results.addAll(filesForL0);</span> |
| <span class="source-line-no">951</span><span id="line-951"> }</span> |
| <span class="source-line-no">952</span><span id="line-952"> }</span> |
| <span class="source-line-no">953</span><span id="line-953"></span> |
| <span class="source-line-no">954</span><span id="line-954"> if (canAddNewStripes) {</span> |
| <span class="source-line-no">955</span><span id="line-955"> // Remove old empty stripes.</span> |
| <span class="source-line-no">956</span><span id="line-956"> int originalCount = this.stripeFiles.size();</span> |
| <span class="source-line-no">957</span><span id="line-957"> for (int removeIndex = removeTo; removeIndex >= removeFrom; --removeIndex) {</span> |
| <span class="source-line-no">958</span><span id="line-958"> if (removeIndex != originalCount - 1) {</span> |
| <span class="source-line-no">959</span><span id="line-959"> this.stripeEndRows.remove(removeIndex);</span> |
| <span class="source-line-no">960</span><span id="line-960"> }</span> |
| <span class="source-line-no">961</span><span id="line-961"> this.stripeFiles.remove(removeIndex);</span> |
| <span class="source-line-no">962</span><span id="line-962"> }</span> |
| <span class="source-line-no">963</span><span id="line-963"> }</span> |
| <span class="source-line-no">964</span><span id="line-964"> }</span> |
| <span class="source-line-no">965</span><span id="line-965"></span> |
| <span class="source-line-no">966</span><span id="line-966"> if (!canAddNewStripes) {</span> |
| <span class="source-line-no">967</span><span id="line-967"> return; // Files were already put into L0.</span> |
| <span class="source-line-no">968</span><span id="line-968"> }</span> |
| <span class="source-line-no">969</span><span id="line-969"></span> |
| <span class="source-line-no">970</span><span id="line-970"> // Now, insert new stripes. The total ranges match, so we can insert where we removed.</span> |
| <span class="source-line-no">971</span><span id="line-971"> byte[] previousEndRow = null;</span> |
| <span class="source-line-no">972</span><span id="line-972"> int insertAt = removeFrom;</span> |
| <span class="source-line-no">973</span><span id="line-973"> for (Map.Entry<byte[], HStoreFile> newStripe : newStripes.entrySet()) {</span> |
| <span class="source-line-no">974</span><span id="line-974"> if (previousEndRow != null) {</span> |
| <span class="source-line-no">975</span><span id="line-975"> // Validate that the ranges are contiguous.</span> |
| <span class="source-line-no">976</span><span id="line-976"> assert !isOpen(previousEndRow);</span> |
| <span class="source-line-no">977</span><span id="line-977"> byte[] startRow = startOf(newStripe.getValue());</span> |
| <span class="source-line-no">978</span><span id="line-978"> if (!rowEquals(previousEndRow, startRow)) {</span> |
| <span class="source-line-no">979</span><span id="line-979"> throw new IllegalStateException("The new stripes produced by "</span> |
| <span class="source-line-no">980</span><span id="line-980"> + (isFlush ? "flush" : "compaction") + " are not contiguous");</span> |
| <span class="source-line-no">981</span><span id="line-981"> }</span> |
| <span class="source-line-no">982</span><span id="line-982"> }</span> |
| <span class="source-line-no">983</span><span id="line-983"> // Add the new stripe.</span> |
| <span class="source-line-no">984</span><span id="line-984"> ArrayList<HStoreFile> tmp = new ArrayList<>();</span> |
| <span class="source-line-no">985</span><span id="line-985"> tmp.add(newStripe.getValue());</span> |
| <span class="source-line-no">986</span><span id="line-986"> stripeFiles.add(insertAt, tmp);</span> |
| <span class="source-line-no">987</span><span id="line-987"> previousEndRow = newStripe.getKey();</span> |
| <span class="source-line-no">988</span><span id="line-988"> if (!isOpen(previousEndRow)) {</span> |
| <span class="source-line-no">989</span><span id="line-989"> stripeEndRows.add(insertAt, previousEndRow);</span> |
| <span class="source-line-no">990</span><span id="line-990"> }</span> |
| <span class="source-line-no">991</span><span id="line-991"> ++insertAt;</span> |
| <span class="source-line-no">992</span><span id="line-992"> }</span> |
| <span class="source-line-no">993</span><span id="line-993"> }</span> |
| <span class="source-line-no">994</span><span id="line-994"> }</span> |
| <span class="source-line-no">995</span><span id="line-995"></span> |
| <span class="source-line-no">996</span><span id="line-996"> @Override</span> |
| <span class="source-line-no">997</span><span id="line-997"> public List<HStoreFile> getLevel0Files() {</span> |
| <span class="source-line-no">998</span><span id="line-998"> return this.state.level0Files;</span> |
| <span class="source-line-no">999</span><span id="line-999"> }</span> |
| <span class="source-line-no">1000</span><span id="line-1000"></span> |
| <span class="source-line-no">1001</span><span id="line-1001"> @Override</span> |
| <span class="source-line-no">1002</span><span id="line-1002"> public List<byte[]> getStripeBoundaries() {</span> |
| <span class="source-line-no">1003</span><span id="line-1003"> if (this.state.stripeFiles.isEmpty()) {</span> |
| <span class="source-line-no">1004</span><span id="line-1004"> return Collections.emptyList();</span> |
| <span class="source-line-no">1005</span><span id="line-1005"> }</span> |
| <span class="source-line-no">1006</span><span id="line-1006"> ArrayList<byte[]> result = new ArrayList<>(this.state.stripeEndRows.length + 2);</span> |
| <span class="source-line-no">1007</span><span id="line-1007"> result.add(OPEN_KEY);</span> |
| <span class="source-line-no">1008</span><span id="line-1008"> Collections.addAll(result, this.state.stripeEndRows);</span> |
| <span class="source-line-no">1009</span><span id="line-1009"> result.add(OPEN_KEY);</span> |
| <span class="source-line-no">1010</span><span id="line-1010"> return result;</span> |
| <span class="source-line-no">1011</span><span id="line-1011"> }</span> |
| <span class="source-line-no">1012</span><span id="line-1012"></span> |
| <span class="source-line-no">1013</span><span id="line-1013"> @Override</span> |
| <span class="source-line-no">1014</span><span id="line-1014"> public ArrayList<ImmutableList<HStoreFile>> getStripes() {</span> |
| <span class="source-line-no">1015</span><span id="line-1015"> return this.state.stripeFiles;</span> |
| <span class="source-line-no">1016</span><span id="line-1016"> }</span> |
| <span class="source-line-no">1017</span><span id="line-1017"></span> |
| <span class="source-line-no">1018</span><span id="line-1018"> @Override</span> |
| <span class="source-line-no">1019</span><span id="line-1019"> public int getStripeCount() {</span> |
| <span class="source-line-no">1020</span><span id="line-1020"> return this.state.stripeFiles.size();</span> |
| <span class="source-line-no">1021</span><span id="line-1021"> }</span> |
| <span class="source-line-no">1022</span><span id="line-1022"></span> |
| <span class="source-line-no">1023</span><span id="line-1023"> @Override</span> |
| <span class="source-line-no">1024</span><span id="line-1024"> public Collection<HStoreFile> getUnneededFiles(long maxTs, List<HStoreFile> filesCompacting) {</span> |
| <span class="source-line-no">1025</span><span id="line-1025"> // 1) We can never get rid of the last file which has the maximum seqid in a stripe.</span> |
| <span class="source-line-no">1026</span><span id="line-1026"> // 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">1027</span><span id="line-1027"> State state = this.state;</span> |
| <span class="source-line-no">1028</span><span id="line-1028"> Collection<HStoreFile> expiredStoreFiles = null;</span> |
| <span class="source-line-no">1029</span><span id="line-1029"> for (ImmutableList<HStoreFile> stripe : state.stripeFiles) {</span> |
| <span class="source-line-no">1030</span><span id="line-1030"> expiredStoreFiles = findExpiredFiles(stripe, maxTs, filesCompacting, expiredStoreFiles);</span> |
| <span class="source-line-no">1031</span><span id="line-1031"> }</span> |
| <span class="source-line-no">1032</span><span id="line-1032"> return findExpiredFiles(state.level0Files, maxTs, filesCompacting, expiredStoreFiles);</span> |
| <span class="source-line-no">1033</span><span id="line-1033"> }</span> |
| <span class="source-line-no">1034</span><span id="line-1034"></span> |
| <span class="source-line-no">1035</span><span id="line-1035"> private Collection<HStoreFile> findExpiredFiles(ImmutableList<HStoreFile> stripe, long maxTs,</span> |
| <span class="source-line-no">1036</span><span id="line-1036"> List<HStoreFile> filesCompacting, Collection<HStoreFile> expiredStoreFiles) {</span> |
| <span class="source-line-no">1037</span><span id="line-1037"> // Order by seqnum is reversed.</span> |
| <span class="source-line-no">1038</span><span id="line-1038"> for (int i = 1; i < stripe.size(); ++i) {</span> |
| <span class="source-line-no">1039</span><span id="line-1039"> HStoreFile sf = stripe.get(i);</span> |
| <span class="source-line-no">1040</span><span id="line-1040"> synchronized (sf) {</span> |
| <span class="source-line-no">1041</span><span id="line-1041"> long fileTs = sf.getReader().getMaxTimestamp();</span> |
| <span class="source-line-no">1042</span><span id="line-1042"> if (fileTs < maxTs && !filesCompacting.contains(sf)) {</span> |
| <span class="source-line-no">1043</span><span id="line-1043"> LOG.info("Found an expired store file: " + sf.getPath() + " whose maxTimestamp is "</span> |
| <span class="source-line-no">1044</span><span id="line-1044"> + fileTs + ", which is below " + maxTs);</span> |
| <span class="source-line-no">1045</span><span id="line-1045"> if (expiredStoreFiles == null) {</span> |
| <span class="source-line-no">1046</span><span id="line-1046"> expiredStoreFiles = new ArrayList<>();</span> |
| <span class="source-line-no">1047</span><span id="line-1047"> }</span> |
| <span class="source-line-no">1048</span><span id="line-1048"> expiredStoreFiles.add(sf);</span> |
| <span class="source-line-no">1049</span><span id="line-1049"> }</span> |
| <span class="source-line-no">1050</span><span id="line-1050"> }</span> |
| <span class="source-line-no">1051</span><span id="line-1051"> }</span> |
| <span class="source-line-no">1052</span><span id="line-1052"> return expiredStoreFiles;</span> |
| <span class="source-line-no">1053</span><span id="line-1053"> }</span> |
| <span class="source-line-no">1054</span><span id="line-1054"></span> |
| <span class="source-line-no">1055</span><span id="line-1055"> @Override</span> |
| <span class="source-line-no">1056</span><span id="line-1056"> public double getCompactionPressure() {</span> |
| <span class="source-line-no">1057</span><span id="line-1057"> State stateLocal = this.state;</span> |
| <span class="source-line-no">1058</span><span id="line-1058"> if (stateLocal.allFilesCached.size() > blockingFileCount) {</span> |
| <span class="source-line-no">1059</span><span id="line-1059"> // just a hit to tell others that we have reached the blocking file count.</span> |
| <span class="source-line-no">1060</span><span id="line-1060"> return 2.0;</span> |
| <span class="source-line-no">1061</span><span id="line-1061"> }</span> |
| <span class="source-line-no">1062</span><span id="line-1062"> if (stateLocal.stripeFiles.isEmpty()) {</span> |
| <span class="source-line-no">1063</span><span id="line-1063"> return 0.0;</span> |
| <span class="source-line-no">1064</span><span id="line-1064"> }</span> |
| <span class="source-line-no">1065</span><span id="line-1065"> int blockingFilePerStripe = blockingFileCount / stateLocal.stripeFiles.size();</span> |
| <span class="source-line-no">1066</span><span id="line-1066"> // do not calculate L0 separately because data will be moved to stripe quickly and in most cases</span> |
| <span class="source-line-no">1067</span><span id="line-1067"> // we flush data to stripe directly.</span> |
| <span class="source-line-no">1068</span><span id="line-1068"> int delta = stateLocal.level0Files.isEmpty() ? 0 : 1;</span> |
| <span class="source-line-no">1069</span><span id="line-1069"> double max = 0.0;</span> |
| <span class="source-line-no">1070</span><span id="line-1070"> for (ImmutableList<HStoreFile> stripeFile : stateLocal.stripeFiles) {</span> |
| <span class="source-line-no">1071</span><span id="line-1071"> int stripeFileCount = stripeFile.size();</span> |
| <span class="source-line-no">1072</span><span id="line-1072"> double normCount = (double) (stripeFileCount + delta - config.getStripeCompactMinFiles())</span> |
| <span class="source-line-no">1073</span><span id="line-1073"> / (blockingFilePerStripe - config.getStripeCompactMinFiles());</span> |
| <span class="source-line-no">1074</span><span id="line-1074"> if (normCount >= 1.0) {</span> |
| <span class="source-line-no">1075</span><span id="line-1075"> // This could happen if stripe is not split evenly. Do not return values that larger than</span> |
| <span class="source-line-no">1076</span><span id="line-1076"> // 1.0 because we have not reached the blocking file count actually.</span> |
| <span class="source-line-no">1077</span><span id="line-1077"> return 1.0;</span> |
| <span class="source-line-no">1078</span><span id="line-1078"> }</span> |
| <span class="source-line-no">1079</span><span id="line-1079"> if (normCount > max) {</span> |
| <span class="source-line-no">1080</span><span id="line-1080"> max = normCount;</span> |
| <span class="source-line-no">1081</span><span id="line-1081"> }</span> |
| <span class="source-line-no">1082</span><span id="line-1082"> }</span> |
| <span class="source-line-no">1083</span><span id="line-1083"> return max;</span> |
| <span class="source-line-no">1084</span><span id="line-1084"> }</span> |
| <span class="source-line-no">1085</span><span id="line-1085"></span> |
| <span class="source-line-no">1086</span><span id="line-1086"> @Override</span> |
| <span class="source-line-no">1087</span><span id="line-1087"> public Comparator<HStoreFile> getStoreFileComparator() {</span> |
| <span class="source-line-no">1088</span><span id="line-1088"> return StoreFileComparators.SEQ_ID;</span> |
| <span class="source-line-no">1089</span><span id="line-1089"> }</span> |
| <span class="source-line-no">1090</span><span id="line-1090">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
