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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Arrays;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Collection;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Collections;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Comparator;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.HashMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Iterator;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.Optional;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.TreeMap;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.conf.Configuration;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.Cell;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.CellComparator;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.HConstants;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.regionserver.compactions.StripeCompactionPolicy;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.ConcatenatedLists;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.util.StringUtils.TraditionalBinaryPrefix;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.slf4j.Logger;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.slf4j.LoggerFactory;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableCollection;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span>/**<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * Stripe implementation of StoreFileManager.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * Not thread safe - relies on external locking (in HStore). Collections that this class<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * returns are immutable or unique to the call, so they should be safe.<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * Stripe store splits the key space of the region into non-overlapping stripes, as well as<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * some recent files that have all the keys (level 0). Each stripe contains a set of files.<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * When L0 is compacted, it's split into the files corresponding to existing stripe boundaries,<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * that can thus be added to stripes.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * When scan or get happens, it only has to read the files from the corresponding stripes.<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * See StripeCompationPolicy on how the stripes are determined; this class doesn't care.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> *<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * This class should work together with StripeCompactionPolicy and StripeCompactor.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * With regard to how they work, we make at least the following (reasonable) assumptions:<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * - Compaction produces one file per new stripe (if any); that is easy to change.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * - Compaction has one contiguous set of stripes both in and out, except if L0 is involved.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> */<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>@InterfaceAudience.Private<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>public class StripeStoreFileManager<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> implements StoreFileManager, StripeCompactionPolicy.StripeInformationProvider {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> private static final Logger LOG = LoggerFactory.getLogger(StripeStoreFileManager.class);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> /**<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * The file metadata fields that contain the stripe information.<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public static final byte[] STRIPE_START_KEY = Bytes.toBytes("STRIPE_START_KEY");<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public static final byte[] STRIPE_END_KEY = Bytes.toBytes("STRIPE_END_KEY");<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private final static Bytes.RowEndKeyComparator MAP_COMPARATOR = new Bytes.RowEndKeyComparator();<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> /**<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * The key value used for range boundary, indicating that the boundary is open (i.e. +-inf).<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> */<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public final static byte[] OPEN_KEY = HConstants.EMPTY_BYTE_ARRAY;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> final static byte[] INVALID_KEY = null;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> /**<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * The state class. Used solely to replace results atomically during<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * compactions and avoid complicated error handling.<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> */<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> private static class State {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> /**<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * The end rows of each stripe. The last stripe end is always open-ended, so it's not stored<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * here. It is invariant that the start row of the stripe is the end row of the previous one<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * (and is an open boundary for the first one).<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> */<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> public byte[][] stripeEndRows = new byte[0][];<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> /**<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * Files by stripe. Each element of the list corresponds to stripeEndRow element with the<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * same index, except the last one. Inside each list, the files are in reverse order by<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * seqNum. Note that the length of this is one higher than that of stripeEndKeys.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public ArrayList<ImmutableList<HStoreFile>> stripeFiles = new ArrayList<>();<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> /** Level 0. The files are in reverse order by seqNum. */<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> public ImmutableList<HStoreFile> level0Files = ImmutableList.of();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span><a name="line.105"></a> |
| <span class="sourceLineNo">106</span> /** Cached list of all files in the structure, to return from some calls */<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> public ImmutableList<HStoreFile> allFilesCached = ImmutableList.of();<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> private ImmutableList<HStoreFile> allCompactedFilesCached = ImmutableList.of();<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> private State state = null;<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> /** Cached file metadata (or overrides as the case may be) */<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> private HashMap<HStoreFile, byte[]> fileStarts = new HashMap<>();<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> private HashMap<HStoreFile, byte[]> fileEnds = new HashMap<>();<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> /** Normally invalid key is null, but in the map null is the result for "no key"; so use<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * the following constant value in these maps instead. Note that this is a constant and<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * we use it to compare by reference when we read from the map. */<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> private static final byte[] INVALID_KEY_IN_MAP = new byte[0];<a name="line.118"></a> |
| <span class="sourceLineNo">119</span><a name="line.119"></a> |
| <span class="sourceLineNo">120</span> private final CellComparator cellComparator;<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> private StripeStoreConfig config;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> private final int blockingFileCount;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> public StripeStoreFileManager(<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> CellComparator kvComparator, Configuration conf, StripeStoreConfig config) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> this.cellComparator = kvComparator;<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> this.config = config;<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> this.blockingFileCount = conf.getInt(<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> HStore.BLOCKING_STOREFILES_KEY, HStore.DEFAULT_BLOCKING_STOREFILE_COUNT);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> @Override<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> public void loadFiles(List<HStoreFile> storeFiles) {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> loadUnclassifiedStoreFiles(storeFiles);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> @Override<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> public Collection<HStoreFile> getStorefiles() {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> return state.allFilesCached;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span><a name="line.142"></a> |
| <span class="sourceLineNo">143</span> @Override<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> public Collection<HStoreFile> getCompactedfiles() {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> return state.allCompactedFilesCached;<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> @Override<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> public int getCompactedFilesCount() {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> return state.allCompactedFilesCached.size();<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> }<a name="line.151"></a> |
| <span class="sourceLineNo">152</span><a name="line.152"></a> |
| <span class="sourceLineNo">153</span> @Override<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> public void insertNewFiles(Collection<HStoreFile> sfs) throws IOException {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> CompactionOrFlushMergeCopy cmc = new CompactionOrFlushMergeCopy(true);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // Passing null does not cause NPE??<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> cmc.mergeResults(null, sfs);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> debugDumpState("Added new files");<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span><a name="line.160"></a> |
| <span class="sourceLineNo">161</span> @Override<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> public ImmutableCollection<HStoreFile> clearFiles() {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> ImmutableCollection<HStoreFile> result = state.allFilesCached;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> this.state = new State();<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> this.fileStarts.clear();<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> this.fileEnds.clear();<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> return result;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span><a name="line.169"></a> |
| <span class="sourceLineNo">170</span> @Override<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> public ImmutableCollection<HStoreFile> clearCompactedFiles() {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> ImmutableCollection<HStoreFile> result = state.allCompactedFilesCached;<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> this.state = new State();<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> return result;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span><a name="line.176"></a> |
| <span class="sourceLineNo">177</span> @Override<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> public int getStorefileCount() {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> return state.allFilesCached.size();<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span><a name="line.181"></a> |
| <span class="sourceLineNo">182</span> /** See {@link StoreFileManager#getCandidateFilesForRowKeyBefore(KeyValue)}<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> * for details on this methods. */<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> @Override<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> public Iterator<HStoreFile> getCandidateFilesForRowKeyBefore(final KeyValue targetKey) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> KeyBeforeConcatenatedLists result = new KeyBeforeConcatenatedLists();<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> // Order matters for this call.<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> result.addSublist(state.level0Files);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> if (!state.stripeFiles.isEmpty()) {<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> int lastStripeIndex = findStripeForRow(CellUtil.cloneRow(targetKey), false);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> for (int stripeIndex = lastStripeIndex; stripeIndex >= 0; --stripeIndex) {<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> result.addSublist(state.stripeFiles.get(stripeIndex));<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> return result.iterator();<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> }<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> /** See {@link StoreFileManager#getCandidateFilesForRowKeyBefore(KeyValue)} and<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> * {@link StoreFileManager#updateCandidateFilesForRowKeyBefore(Iterator, KeyValue, Cell)}<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * for details on this methods. */<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> @Override<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> public Iterator<HStoreFile> updateCandidateFilesForRowKeyBefore(<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> Iterator<HStoreFile> candidateFiles, final KeyValue targetKey, final Cell candidate) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> KeyBeforeConcatenatedLists.Iterator original =<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> (KeyBeforeConcatenatedLists.Iterator)candidateFiles;<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> assert original != null;<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> ArrayList<List<HStoreFile>> components = original.getComponents();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> for (int firstIrrelevant = 0; firstIrrelevant < components.size(); ++firstIrrelevant) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> HStoreFile sf = components.get(firstIrrelevant).get(0);<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> byte[] endKey = endOf(sf);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> // Entries are ordered as such: L0, then stripes in reverse order. We never remove<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> // level 0; we remove the stripe, and all subsequent ones, as soon as we find the<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // first one that cannot possibly have better candidates.<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> if (!isInvalid(endKey) && !isOpen(endKey)<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> && (nonOpenRowCompare(targetKey, endKey) >= 0)) {<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> original.removeComponents(firstIrrelevant);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> break;<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> return original;<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> }<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> /**<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> * Override of getSplitPoint that determines the split point as the boundary between two<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> * stripes, unless it causes significant imbalance between split sides' sizes. In that<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> * case, the split boundary will be chosen from the middle of one of the stripes to<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> * minimize imbalance.<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> * @return The split point, or null if no split is possible.<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> */<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> @Override<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> public Optional<byte[]> getSplitPoint() throws IOException {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> if (this.getStorefileCount() == 0) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> return Optional.empty();<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> if (state.stripeFiles.size() <= 1) {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> return getSplitPointFromAllFiles();<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> int leftIndex = -1, rightIndex = state.stripeFiles.size();<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> long leftSize = 0, rightSize = 0;<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> long lastLeftSize = 0, lastRightSize = 0;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> while (rightIndex - 1 != leftIndex) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> if (leftSize >= rightSize) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> --rightIndex;<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> lastRightSize = getStripeFilesSize(rightIndex);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> rightSize += lastRightSize;<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> } else {<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> ++leftIndex;<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> lastLeftSize = getStripeFilesSize(leftIndex);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> leftSize += lastLeftSize;<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> if (leftSize == 0 || rightSize == 0) {<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> String errMsg = String.format("Cannot split on a boundary - left index %d size %d, "<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> + "right index %d size %d", leftIndex, leftSize, rightIndex, rightSize);<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> debugDumpState(errMsg);<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> LOG.warn(errMsg);<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> return getSplitPointFromAllFiles();<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> }<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> double ratio = (double)rightSize / leftSize;<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> if (ratio < 1) {<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> ratio = 1 / ratio;<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> }<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> if (config.getMaxSplitImbalance() > ratio) {<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> return Optional.of(state.stripeEndRows[leftIndex]);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // If the difference between the sides is too large, we could get the proportional key on<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // the a stripe to equalize the difference, but there's no proportional key method at the<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> // moment, and it's not extremely important.<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> // See if we can achieve better ratio if we split the bigger side in half.<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> boolean isRightLarger = rightSize >= leftSize;<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> double newRatio = isRightLarger<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> ? getMidStripeSplitRatio(leftSize, rightSize, lastRightSize)<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> : getMidStripeSplitRatio(rightSize, leftSize, lastLeftSize);<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> if (newRatio < 1) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> newRatio = 1 / newRatio;<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> if (newRatio >= ratio) {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> return Optional.of(state.stripeEndRows[leftIndex]);<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> }<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> LOG.debug("Splitting the stripe - ratio w/o split " + ratio + ", ratio with split "<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> + newRatio + " configured ratio " + config.getMaxSplitImbalance());<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> // OK, we may get better ratio, get it.<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> return StoreUtils.getSplitPoint(state.stripeFiles.get(isRightLarger ? rightIndex : leftIndex),<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> cellComparator);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> private Optional<byte[]> getSplitPointFromAllFiles() throws IOException {<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> ConcatenatedLists<HStoreFile> sfs = new ConcatenatedLists<>();<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> sfs.addSublist(state.level0Files);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> sfs.addAllSublists(state.stripeFiles);<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> return StoreUtils.getSplitPoint(sfs, cellComparator);<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span><a name="line.294"></a> |
| <span class="sourceLineNo">295</span> private double getMidStripeSplitRatio(long smallerSize, long largerSize, long lastLargerSize) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> return (double)(largerSize - lastLargerSize / 2f) / (smallerSize + lastLargerSize / 2f);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> }<a name="line.297"></a> |
| <span class="sourceLineNo">298</span><a name="line.298"></a> |
| <span class="sourceLineNo">299</span> @Override<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> public Collection<HStoreFile> getFilesForScan(byte[] startRow, boolean includeStartRow,<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> byte[] stopRow, boolean includeStopRow) {<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> if (state.stripeFiles.isEmpty()) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> return state.level0Files; // There's just L0.<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> }<a name="line.304"></a> |
| <span class="sourceLineNo">305</span><a name="line.305"></a> |
| <span class="sourceLineNo">306</span> int firstStripe = findStripeForRow(startRow, true);<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> int lastStripe = findStripeForRow(stopRow, false);<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> assert firstStripe <= lastStripe;<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> if (firstStripe == lastStripe && state.level0Files.isEmpty()) {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> return state.stripeFiles.get(firstStripe); // There's just one stripe we need.<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> }<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> if (firstStripe == 0 && lastStripe == (state.stripeFiles.size() - 1)) {<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> return state.allFilesCached; // We need to read all files.<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span><a name="line.315"></a> |
| <span class="sourceLineNo">316</span> ConcatenatedLists<HStoreFile> result = new ConcatenatedLists<>();<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> result.addAllSublists(state.stripeFiles.subList(firstStripe, lastStripe + 1));<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> result.addSublist(state.level0Files);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> return result;<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> }<a name="line.320"></a> |
| <span class="sourceLineNo">321</span><a name="line.321"></a> |
| <span class="sourceLineNo">322</span> @Override<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> public void addCompactionResults(<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> Collection<HStoreFile> compactedFiles, Collection<HStoreFile> results) throws IOException {<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> // See class comment for the assumptions we make here.<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> LOG.debug("Attempting to merge compaction results: " + compactedFiles.size()<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> + " files replaced by " + results.size());<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> // In order to be able to fail in the middle of the operation, we'll operate on lazy<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> // copies and apply the result at the end.<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> CompactionOrFlushMergeCopy cmc = new CompactionOrFlushMergeCopy(false);<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> cmc.mergeResults(compactedFiles, results);<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> markCompactedAway(compactedFiles);<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> debugDumpState("Merged compaction results");<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> }<a name="line.334"></a> |
| <span class="sourceLineNo">335</span><a name="line.335"></a> |
| <span class="sourceLineNo">336</span> // Mark the files as compactedAway once the storefiles and compactedfiles list is finalised<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> // Let a background thread close the actual reader on these compacted files and also<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> // ensure to evict the blocks from block cache so that they are no longer in<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> // cache<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> private void markCompactedAway(Collection<HStoreFile> compactedFiles) {<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> for (HStoreFile file : compactedFiles) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> file.markCompactedAway();<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> }<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<a name="line.344"></a> |
| <span class="sourceLineNo">345</span><a name="line.345"></a> |
| <span class="sourceLineNo">346</span> @Override<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> public void removeCompactedFiles(Collection<HStoreFile> compactedFiles) throws IOException {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> // See class comment for the assumptions we make here.<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> LOG.debug("Attempting to delete compaction results: " + compactedFiles.size());<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> // In order to be able to fail in the middle of the operation, we'll operate on lazy<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> // copies and apply the result at the end.<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> CompactionOrFlushMergeCopy cmc = new CompactionOrFlushMergeCopy(false);<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> cmc.deleteResults(compactedFiles);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> debugDumpState("Deleted compaction results");<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> }<a name="line.355"></a> |
| <span class="sourceLineNo">356</span><a name="line.356"></a> |
| <span class="sourceLineNo">357</span> @Override<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> public int getStoreCompactionPriority() {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> // If there's only L0, do what the default store does.<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> // If we are in critical priority, do the same - we don't want to trump all stores all<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> // the time due to how many files we have.<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> int fc = getStorefileCount();<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> if (state.stripeFiles.isEmpty() || (this.blockingFileCount <= fc)) {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> return this.blockingFileCount - fc;<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> }<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> // If we are in good shape, we don't want to be trumped by all other stores due to how<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> // many files we have, so do an approximate mapping to normal priority range; L0 counts<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> // for all stripes.<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> int l0 = state.level0Files.size(), sc = state.stripeFiles.size();<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> int priority = (int)Math.ceil(((double)(this.blockingFileCount - fc + l0) / sc) - l0);<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> return (priority <= HStore.PRIORITY_USER) ? (HStore.PRIORITY_USER + 1) : priority;<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span><a name="line.373"></a> |
| <span class="sourceLineNo">374</span> /**<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> * Gets the total size of all files in the stripe.<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> * @param stripeIndex Stripe index.<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> * @return Size.<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> */<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> private long getStripeFilesSize(int stripeIndex) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> long result = 0;<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> for (HStoreFile sf : state.stripeFiles.get(stripeIndex)) {<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> result += sf.getReader().length();<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span> return result;<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> }<a name="line.385"></a> |
| <span class="sourceLineNo">386</span><a name="line.386"></a> |
| <span class="sourceLineNo">387</span> /**<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> * Loads initial store files that were picked up from some physical location pertaining to<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> * this store (presumably). Unlike adding files after compaction, assumes empty initial<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> * sets, and is forgiving with regard to stripe constraints - at worst, many/all files will<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> * go to level 0.<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> * @param storeFiles Store files to add.<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> */<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> private void loadUnclassifiedStoreFiles(List<HStoreFile> storeFiles) {<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> LOG.debug("Attempting to load " + storeFiles.size() + " store files.");<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> TreeMap<byte[], ArrayList<HStoreFile>> candidateStripes = new TreeMap<>(MAP_COMPARATOR);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> ArrayList<HStoreFile> level0Files = new ArrayList<>();<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> // Separate the files into tentative stripes; then validate. Currently, we rely on metadata.<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> // If needed, we could dynamically determine the stripes in future.<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> for (HStoreFile sf : storeFiles) {<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> byte[] startRow = startOf(sf), endRow = endOf(sf);<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> // Validate the range and put the files into place.<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> if (isInvalid(startRow) || isInvalid(endRow)) {<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> insertFileIntoStripe(level0Files, sf); // No metadata - goes to L0.<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> ensureLevel0Metadata(sf);<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> } else if (!isOpen(startRow) && !isOpen(endRow) &&<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> nonOpenRowCompare(startRow, endRow) >= 0) {<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> LOG.error("Unexpected metadata - start row [" + Bytes.toString(startRow) + "], end row ["<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> + Bytes.toString(endRow) + "] in file [" + sf.getPath() + "], pushing to L0");<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> insertFileIntoStripe(level0Files, sf); // Bad metadata - goes to L0 also.<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> ensureLevel0Metadata(sf);<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> } else {<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> ArrayList<HStoreFile> stripe = candidateStripes.get(endRow);<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> if (stripe == null) {<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> stripe = new ArrayList<>();<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> candidateStripes.put(endRow, stripe);<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> }<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> insertFileIntoStripe(stripe, sf);<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> }<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> // Possible improvement - for variable-count stripes, if all the files are in L0, we can<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> // instead create single, open-ended stripe with all files.<a name="line.422"></a> |
| <span class="sourceLineNo">423</span><a name="line.423"></a> |
| <span class="sourceLineNo">424</span> boolean hasOverlaps = false;<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> byte[] expectedStartRow = null; // first stripe can start wherever<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> Iterator<Map.Entry<byte[], ArrayList<HStoreFile>>> entryIter =<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> candidateStripes.entrySet().iterator();<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> while (entryIter.hasNext()) {<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> Map.Entry<byte[], ArrayList<HStoreFile>> entry = entryIter.next();<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> ArrayList<HStoreFile> files = entry.getValue();<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> // Validate the file start rows, and remove the bad ones to level 0.<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> for (int i = 0; i < files.size(); ++i) {<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> HStoreFile sf = files.get(i);<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> byte[] startRow = startOf(sf);<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> if (expectedStartRow == null) {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> expectedStartRow = startRow; // ensure that first stripe is still consistent<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> } else if (!rowEquals(expectedStartRow, startRow)) {<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> hasOverlaps = true;<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> LOG.warn("Store file doesn't fit into the tentative stripes - expected to start at ["<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> + Bytes.toString(expectedStartRow) + "], but starts at [" + Bytes.toString(startRow)<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> + "], to L0 it goes");<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> HStoreFile badSf = files.remove(i);<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> insertFileIntoStripe(level0Files, badSf);<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> ensureLevel0Metadata(badSf);<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> --i;<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> }<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> }<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> // Check if any files from the candidate stripe are valid. If so, add a stripe.<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> byte[] endRow = entry.getKey();<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> if (!files.isEmpty()) {<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> expectedStartRow = endRow; // Next stripe must start exactly at that key.<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> } else {<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> entryIter.remove();<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> }<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> }<a name="line.455"></a> |
| <span class="sourceLineNo">456</span><a name="line.456"></a> |
| <span class="sourceLineNo">457</span> // In the end, there must be open ends on two sides. If not, and there were no errors i.e.<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> // files are consistent, they might be coming from a split. We will treat the boundaries<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> // as open keys anyway, and log the message.<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> // If there were errors, we'll play it safe and dump everything into L0.<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> if (!candidateStripes.isEmpty()) {<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> HStoreFile firstFile = candidateStripes.firstEntry().getValue().get(0);<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> boolean isOpen = isOpen(startOf(firstFile)) && isOpen(candidateStripes.lastKey());<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> if (!isOpen) {<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> LOG.warn("The range of the loaded files does not cover full key space: from ["<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> + Bytes.toString(startOf(firstFile)) + "], to ["<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> + Bytes.toString(candidateStripes.lastKey()) + "]");<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> if (!hasOverlaps) {<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> ensureEdgeStripeMetadata(candidateStripes.firstEntry().getValue(), true);<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> ensureEdgeStripeMetadata(candidateStripes.lastEntry().getValue(), false);<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> } else {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> LOG.warn("Inconsistent files, everything goes to L0.");<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> for (ArrayList<HStoreFile> files : candidateStripes.values()) {<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> for (HStoreFile sf : files) {<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> insertFileIntoStripe(level0Files, sf);<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> ensureLevel0Metadata(sf);<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> }<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> }<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> candidateStripes.clear();<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> }<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> }<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> }<a name="line.482"></a> |
| <span class="sourceLineNo">483</span><a name="line.483"></a> |
| <span class="sourceLineNo">484</span> // Copy the results into the fields.<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> State state = new State();<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> state.level0Files = ImmutableList.copyOf(level0Files);<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> state.stripeFiles = new ArrayList<>(candidateStripes.size());<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> state.stripeEndRows = new byte[Math.max(0, candidateStripes.size() - 1)][];<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> ArrayList<HStoreFile> newAllFiles = new ArrayList<>(level0Files);<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> int i = candidateStripes.size() - 1;<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> for (Map.Entry<byte[], ArrayList<HStoreFile>> entry : candidateStripes.entrySet()) {<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> state.stripeFiles.add(ImmutableList.copyOf(entry.getValue()));<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> newAllFiles.addAll(entry.getValue());<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> if (i > 0) {<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> state.stripeEndRows[state.stripeFiles.size() - 1] = entry.getKey();<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> }<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> --i;<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> }<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> state.allFilesCached = ImmutableList.copyOf(newAllFiles);<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> this.state = state;<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> debugDumpState("Files loaded");<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> }<a name="line.502"></a> |
| <span class="sourceLineNo">503</span><a name="line.503"></a> |
| <span class="sourceLineNo">504</span> private void ensureEdgeStripeMetadata(ArrayList<HStoreFile> stripe, boolean isFirst) {<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> HashMap<HStoreFile, byte[]> targetMap = isFirst ? fileStarts : fileEnds;<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> for (HStoreFile sf : stripe) {<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> targetMap.put(sf, OPEN_KEY);<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> }<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> }<a name="line.509"></a> |
| <span class="sourceLineNo">510</span><a name="line.510"></a> |
| <span class="sourceLineNo">511</span> private void ensureLevel0Metadata(HStoreFile sf) {<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> if (!isInvalid(startOf(sf))) this.fileStarts.put(sf, INVALID_KEY_IN_MAP);<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> if (!isInvalid(endOf(sf))) this.fileEnds.put(sf, INVALID_KEY_IN_MAP);<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> }<a name="line.514"></a> |
| <span class="sourceLineNo">515</span><a name="line.515"></a> |
| <span class="sourceLineNo">516</span> private void debugDumpState(String string) {<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> if (!LOG.isDebugEnabled()) return;<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> StringBuilder sb = new StringBuilder();<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> sb.append("\n" + string + "; current stripe state is as such:");<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> sb.append("\n level 0 with ")<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> .append(state.level0Files.size())<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> .append(<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> " files: "<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> + TraditionalBinaryPrefix.long2String(<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> StripeCompactionPolicy.getTotalFileSize(state.level0Files), "", 1) + ";");<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> for (int i = 0; i < state.stripeFiles.size(); ++i) {<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> String endRow = (i == state.stripeEndRows.length)<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> ? "(end)" : "[" + Bytes.toString(state.stripeEndRows[i]) + "]";<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> sb.append("\n stripe ending in ")<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> .append(endRow)<a name="line.530"></a> |
| <span class="sourceLineNo">531</span> .append(" with ")<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> .append(state.stripeFiles.get(i).size())<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> .append(<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> " files: "<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> + TraditionalBinaryPrefix.long2String(<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> StripeCompactionPolicy.getTotalFileSize(state.stripeFiles.get(i)), "", 1) + ";");<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> }<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> sb.append("\n").append(state.stripeFiles.size()).append(" stripes total.");<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> sb.append("\n").append(getStorefileCount()).append(" files total.");<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> LOG.debug(sb.toString());<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> }<a name="line.541"></a> |
| <span class="sourceLineNo">542</span><a name="line.542"></a> |
| <span class="sourceLineNo">543</span> /**<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> * Checks whether the key indicates an open interval boundary (i.e. infinity).<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> */<a name="line.545"></a> |
| <span class="sourceLineNo">546</span> private static final boolean isOpen(byte[] key) {<a name="line.546"></a> |
| <span class="sourceLineNo">547</span> return key != null && key.length == 0;<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> }<a name="line.548"></a> |
| <span class="sourceLineNo">549</span><a name="line.549"></a> |
| <span class="sourceLineNo">550</span> private static final boolean isOpen(Cell key) {<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> return key != null && key.getRowLength() == 0;<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> }<a name="line.552"></a> |
| <span class="sourceLineNo">553</span><a name="line.553"></a> |
| <span class="sourceLineNo">554</span> /**<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> * Checks whether the key is invalid (e.g. from an L0 file, or non-stripe-compacted files).<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> */<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> private static final boolean isInvalid(byte[] key) {<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> // No need to use Arrays.equals because INVALID_KEY is null<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> return key == INVALID_KEY;<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> }<a name="line.560"></a> |
| <span class="sourceLineNo">561</span><a name="line.561"></a> |
| <span class="sourceLineNo">562</span> /**<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> * Compare two keys for equality.<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> */<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> private final boolean rowEquals(byte[] k1, byte[] k2) {<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> return Bytes.equals(k1, 0, k1.length, k2, 0, k2.length);<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> }<a name="line.567"></a> |
| <span class="sourceLineNo">568</span><a name="line.568"></a> |
| <span class="sourceLineNo">569</span> /**<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> * Compare two keys. Keys must not be open (isOpen(row) == false).<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> */<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> private final int nonOpenRowCompare(byte[] k1, byte[] k2) {<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> assert !isOpen(k1) && !isOpen(k2);<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> return Bytes.compareTo(k1, k2);<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> }<a name="line.575"></a> |
| <span class="sourceLineNo">576</span><a name="line.576"></a> |
| <span class="sourceLineNo">577</span> private final int nonOpenRowCompare(Cell k1, byte[] k2) {<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> assert !isOpen(k1) && !isOpen(k2);<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> return cellComparator.compareRows(k1, k2, 0, k2.length);<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> }<a name="line.580"></a> |
| <span class="sourceLineNo">581</span><a name="line.581"></a> |
| <span class="sourceLineNo">582</span> /**<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> * Finds the stripe index by end row.<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> */<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> private final int findStripeIndexByEndRow(byte[] endRow) {<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> assert !isInvalid(endRow);<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> if (isOpen(endRow)) return state.stripeEndRows.length;<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> return Arrays.binarySearch(state.stripeEndRows, endRow, Bytes.BYTES_COMPARATOR);<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> }<a name="line.589"></a> |
| <span class="sourceLineNo">590</span><a name="line.590"></a> |
| <span class="sourceLineNo">591</span> /**<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> * Finds the stripe index for the stripe containing a row provided externally for get/scan.<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> */<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> private final int findStripeForRow(byte[] row, boolean isStart) {<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> if (isStart && Arrays.equals(row, HConstants.EMPTY_START_ROW)) return 0;<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> if (!isStart && Arrays.equals(row, HConstants.EMPTY_END_ROW)) {<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> return state.stripeFiles.size() - 1;<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> }<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> // If there's an exact match below, a stripe ends at "row". Stripe right boundary is<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> // exclusive, so that means the row is in the next stripe; thus, we need to add one to index.<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> // If there's no match, the return value of binarySearch is (-(insertion point) - 1), where<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> // insertion point is the index of the next greater element, or list size if none. The<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> // insertion point happens to be exactly what we need, so we need to add one to the result.<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> return Math.abs(Arrays.binarySearch(state.stripeEndRows, row, Bytes.BYTES_COMPARATOR) + 1);<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> }<a name="line.605"></a> |
| <span class="sourceLineNo">606</span><a name="line.606"></a> |
| <span class="sourceLineNo">607</span> @Override<a name="line.607"></a> |
| <span class="sourceLineNo">608</span> public final byte[] getStartRow(int stripeIndex) {<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> return (stripeIndex == 0 ? OPEN_KEY : state.stripeEndRows[stripeIndex - 1]);<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> }<a name="line.610"></a> |
| <span class="sourceLineNo">611</span><a name="line.611"></a> |
| <span class="sourceLineNo">612</span> @Override<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> public final byte[] getEndRow(int stripeIndex) {<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> return (stripeIndex == state.stripeEndRows.length<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> ? OPEN_KEY : state.stripeEndRows[stripeIndex]);<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> }<a name="line.616"></a> |
| <span class="sourceLineNo">617</span><a name="line.617"></a> |
| <span class="sourceLineNo">618</span><a name="line.618"></a> |
| <span class="sourceLineNo">619</span> private byte[] startOf(HStoreFile sf) {<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> byte[] result = fileStarts.get(sf);<a name="line.620"></a> |
| <span class="sourceLineNo">621</span><a name="line.621"></a> |
| <span class="sourceLineNo">622</span> // result and INVALID_KEY_IN_MAP are compared _only_ by reference on purpose here as the latter<a name="line.622"></a> |
| <span class="sourceLineNo">623</span> // serves only as a marker and is not to be confused with other empty byte arrays.<a name="line.623"></a> |
| <span class="sourceLineNo">624</span> // See Javadoc of INVALID_KEY_IN_MAP for more information<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> return (result == null)<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> ? sf.getMetadataValue(STRIPE_START_KEY)<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> : result == INVALID_KEY_IN_MAP ? INVALID_KEY : result;<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> }<a name="line.628"></a> |
| <span class="sourceLineNo">629</span><a name="line.629"></a> |
| <span class="sourceLineNo">630</span> private byte[] endOf(HStoreFile sf) {<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> byte[] result = fileEnds.get(sf);<a name="line.631"></a> |
| <span class="sourceLineNo">632</span><a name="line.632"></a> |
| <span class="sourceLineNo">633</span> // result and INVALID_KEY_IN_MAP are compared _only_ by reference on purpose here as the latter<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> // serves only as a marker and is not to be confused with other empty byte arrays.<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> // See Javadoc of INVALID_KEY_IN_MAP for more information<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> return (result == null)<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> ? sf.getMetadataValue(STRIPE_END_KEY)<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> : result == INVALID_KEY_IN_MAP ? INVALID_KEY : result;<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> }<a name="line.639"></a> |
| <span class="sourceLineNo">640</span><a name="line.640"></a> |
| <span class="sourceLineNo">641</span> /**<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> * Inserts a file in the correct place (by seqnum) in a stripe copy.<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> * @param stripe Stripe copy to insert into.<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> * @param sf File to insert.<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> */<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> private static void insertFileIntoStripe(ArrayList<HStoreFile> stripe, HStoreFile sf) {<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> // The only operation for which sorting of the files matters is KeyBefore. Therefore,<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> // we will store the file in reverse order by seqNum from the outset.<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> for (int insertBefore = 0; ; ++insertBefore) {<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> if (insertBefore == stripe.size()<a name="line.650"></a> |
| <span class="sourceLineNo">651</span> || (StoreFileComparators.SEQ_ID.compare(sf, stripe.get(insertBefore)) >= 0)) {<a name="line.651"></a> |
| <span class="sourceLineNo">652</span> stripe.add(insertBefore, sf);<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> break;<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> }<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> }<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> }<a name="line.656"></a> |
| <span class="sourceLineNo">657</span><a name="line.657"></a> |
| <span class="sourceLineNo">658</span> /**<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> * An extension of ConcatenatedLists that has several peculiar properties.<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> * First, one can cut the tail of the logical list by removing last several sub-lists.<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> * Second, items can be removed thru iterator.<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> * Third, if the sub-lists are immutable, they are replaced with mutable copies when needed.<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> * On average KeyBefore operation will contain half the stripes as potential candidates,<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> * but will quickly cut down on them as it finds something in the more likely ones; thus,<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> * the above allow us to avoid unnecessary copying of a bunch of lists.<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> */<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> private static class KeyBeforeConcatenatedLists extends ConcatenatedLists<HStoreFile> {<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> @Override<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> public java.util.Iterator<HStoreFile> iterator() {<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> return new Iterator();<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> }<a name="line.671"></a> |
| <span class="sourceLineNo">672</span><a name="line.672"></a> |
| <span class="sourceLineNo">673</span> public class Iterator extends ConcatenatedLists<HStoreFile>.Iterator {<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> public ArrayList<List<HStoreFile>> getComponents() {<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> return components;<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> }<a name="line.676"></a> |
| <span class="sourceLineNo">677</span><a name="line.677"></a> |
| <span class="sourceLineNo">678</span> public void removeComponents(int startIndex) {<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> List<List<HStoreFile>> subList = components.subList(startIndex, components.size());<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> for (List<HStoreFile> entry : subList) {<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> size -= entry.size();<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> }<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> assert size >= 0;<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> subList.clear();<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> }<a name="line.685"></a> |
| <span class="sourceLineNo">686</span><a name="line.686"></a> |
| <span class="sourceLineNo">687</span> @Override<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> public void remove() {<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> if (!this.nextWasCalled) {<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> throw new IllegalStateException("No element to remove");<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> }<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> this.nextWasCalled = false;<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> List<HStoreFile> src = components.get(currentComponent);<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> if (src instanceof ImmutableList<?>) {<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> src = new ArrayList<>(src);<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> components.set(currentComponent, src);<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> }<a name="line.697"></a> |
| <span class="sourceLineNo">698</span> src.remove(indexWithinComponent);<a name="line.698"></a> |
| <span class="sourceLineNo">699</span> --size;<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> --indexWithinComponent;<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> if (src.isEmpty()) {<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> components.remove(currentComponent); // indexWithinComponent is already -1 here.<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> }<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> }<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> }<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> }<a name="line.706"></a> |
| <span class="sourceLineNo">707</span><a name="line.707"></a> |
| <span class="sourceLineNo">708</span> /**<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> * Non-static helper class for merging compaction or flush results.<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> * Since we want to merge them atomically (more or less), it operates on lazy copies,<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> * then creates a new state object and puts it in place.<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> */<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> private class CompactionOrFlushMergeCopy {<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> private ArrayList<List<HStoreFile>> stripeFiles = null;<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> private ArrayList<HStoreFile> level0Files = null;<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> private ArrayList<byte[]> stripeEndRows = null;<a name="line.716"></a> |
| <span class="sourceLineNo">717</span><a name="line.717"></a> |
| <span class="sourceLineNo">718</span> private Collection<HStoreFile> compactedFiles = null;<a name="line.718"></a> |
| <span class="sourceLineNo">719</span> private Collection<HStoreFile> results = null;<a name="line.719"></a> |
| <span class="sourceLineNo">720</span><a name="line.720"></a> |
| <span class="sourceLineNo">721</span> private List<HStoreFile> l0Results = new ArrayList<>();<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> private final boolean isFlush;<a name="line.722"></a> |
| <span class="sourceLineNo">723</span><a name="line.723"></a> |
| <span class="sourceLineNo">724</span> public CompactionOrFlushMergeCopy(boolean isFlush) {<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> // Create a lazy mutable copy (other fields are so lazy they start out as nulls).<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> this.stripeFiles = new ArrayList<>(StripeStoreFileManager.this.state.stripeFiles);<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> this.isFlush = isFlush;<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> }<a name="line.728"></a> |
| <span class="sourceLineNo">729</span><a name="line.729"></a> |
| <span class="sourceLineNo">730</span> private void mergeResults(Collection<HStoreFile> compactedFiles, Collection<HStoreFile> results)<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> throws IOException {<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> assert this.compactedFiles == null && this.results == null;<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> this.compactedFiles = compactedFiles;<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> this.results = results;<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> // Do logical processing.<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> if (!isFlush) removeCompactedFiles();<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> TreeMap<byte[], HStoreFile> newStripes = processResults();<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> if (newStripes != null) {<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> processNewCandidateStripes(newStripes);<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> }<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> // Create new state and update parent.<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> State state = createNewState(false);<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> StripeStoreFileManager.this.state = state;<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> updateMetadataMaps();<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> }<a name="line.745"></a> |
| <span class="sourceLineNo">746</span><a name="line.746"></a> |
| <span class="sourceLineNo">747</span> private void deleteResults(Collection<HStoreFile> compactedFiles) throws IOException {<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> this.compactedFiles = compactedFiles;<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> // Create new state and update parent.<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> State state = createNewState(true);<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> StripeStoreFileManager.this.state = state;<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> updateMetadataMaps();<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> }<a name="line.753"></a> |
| <span class="sourceLineNo">754</span><a name="line.754"></a> |
| <span class="sourceLineNo">755</span> private State createNewState(boolean delCompactedFiles) {<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> State oldState = StripeStoreFileManager.this.state;<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> // Stripe count should be the same unless the end rows changed.<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> assert oldState.stripeFiles.size() == this.stripeFiles.size() || this.stripeEndRows != null;<a name="line.758"></a> |
| <span class="sourceLineNo">759</span> State newState = new State();<a name="line.759"></a> |
| <span class="sourceLineNo">760</span> newState.level0Files = (this.level0Files == null) ? oldState.level0Files<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> : ImmutableList.copyOf(this.level0Files);<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> newState.stripeEndRows = (this.stripeEndRows == null) ? oldState.stripeEndRows<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> : this.stripeEndRows.toArray(new byte[this.stripeEndRows.size()][]);<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> newState.stripeFiles = new ArrayList<>(this.stripeFiles.size());<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> for (List<HStoreFile> newStripe : this.stripeFiles) {<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> newState.stripeFiles.add(newStripe instanceof ImmutableList<?><a name="line.766"></a> |
| <span class="sourceLineNo">767</span> ? (ImmutableList<HStoreFile>)newStripe : ImmutableList.copyOf(newStripe));<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> }<a name="line.768"></a> |
| <span class="sourceLineNo">769</span><a name="line.769"></a> |
| <span class="sourceLineNo">770</span> List<HStoreFile> newAllFiles = new ArrayList<>(oldState.allFilesCached);<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> List<HStoreFile> newAllCompactedFiles = new ArrayList<>(oldState.allCompactedFilesCached);<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> if (!isFlush) {<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> newAllFiles.removeAll(compactedFiles);<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> if (delCompactedFiles) {<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> newAllCompactedFiles.removeAll(compactedFiles);<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> } else {<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> newAllCompactedFiles.addAll(compactedFiles);<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> }<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> }<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> if (results != null) {<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> newAllFiles.addAll(results);<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> }<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> newState.allFilesCached = ImmutableList.copyOf(newAllFiles);<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> newState.allCompactedFilesCached = ImmutableList.copyOf(newAllCompactedFiles);<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> return newState;<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> }<a name="line.786"></a> |
| <span class="sourceLineNo">787</span><a name="line.787"></a> |
| <span class="sourceLineNo">788</span> private void updateMetadataMaps() {<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> StripeStoreFileManager parent = StripeStoreFileManager.this;<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> if (!isFlush) {<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> for (HStoreFile sf : this.compactedFiles) {<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> parent.fileStarts.remove(sf);<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> parent.fileEnds.remove(sf);<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> }<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> }<a name="line.795"></a> |
| <span class="sourceLineNo">796</span> if (this.l0Results != null) {<a name="line.796"></a> |
| <span class="sourceLineNo">797</span> for (HStoreFile sf : this.l0Results) {<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> parent.ensureLevel0Metadata(sf);<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> }<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> }<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> }<a name="line.801"></a> |
| <span class="sourceLineNo">802</span><a name="line.802"></a> |
| <span class="sourceLineNo">803</span> /**<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> * @param index Index of the stripe we need.<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> * @return A lazy stripe copy from current stripes.<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> */<a name="line.806"></a> |
| <span class="sourceLineNo">807</span> private final ArrayList<HStoreFile> getStripeCopy(int index) {<a name="line.807"></a> |
| <span class="sourceLineNo">808</span> List<HStoreFile> stripeCopy = this.stripeFiles.get(index);<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> ArrayList<HStoreFile> result = null;<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> if (stripeCopy instanceof ImmutableList<?>) {<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> result = new ArrayList<>(stripeCopy);<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> this.stripeFiles.set(index, result);<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> } else {<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> result = (ArrayList<HStoreFile>)stripeCopy;<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> }<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> return result;<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> }<a name="line.817"></a> |
| <span class="sourceLineNo">818</span><a name="line.818"></a> |
| <span class="sourceLineNo">819</span> /**<a name="line.819"></a> |
| <span class="sourceLineNo">820</span> * @return A lazy L0 copy from current state.<a name="line.820"></a> |
| <span class="sourceLineNo">821</span> */<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> private final ArrayList<HStoreFile> getLevel0Copy() {<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> if (this.level0Files == null) {<a name="line.823"></a> |
| <span class="sourceLineNo">824</span> this.level0Files = new ArrayList<>(StripeStoreFileManager.this.state.level0Files);<a name="line.824"></a> |
| <span class="sourceLineNo">825</span> }<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> return this.level0Files;<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> }<a name="line.827"></a> |
| <span class="sourceLineNo">828</span><a name="line.828"></a> |
| <span class="sourceLineNo">829</span> /**<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> * Process new files, and add them either to the structure of existing stripes,<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> * or to the list of new candidate stripes.<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> * @return New candidate stripes.<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> */<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> private TreeMap<byte[], HStoreFile> processResults() throws IOException {<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> TreeMap<byte[], HStoreFile> newStripes = null;<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> for (HStoreFile sf : this.results) {<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> byte[] startRow = startOf(sf), endRow = endOf(sf);<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> if (isInvalid(endRow) || isInvalid(startRow)) {<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> if (!isFlush) {<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> LOG.warn("The newly compacted file doesn't have stripes set: " + sf.getPath());<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> }<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> insertFileIntoStripe(getLevel0Copy(), sf);<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> this.l0Results.add(sf);<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> continue;<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> }<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> if (!this.stripeFiles.isEmpty()) {<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> int stripeIndex = findStripeIndexByEndRow(endRow);<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> if ((stripeIndex >= 0) && rowEquals(getStartRow(stripeIndex), startRow)) {<a name="line.848"></a> |
| <span class="sourceLineNo">849</span> // Simple/common case - add file to an existing stripe.<a name="line.849"></a> |
| <span class="sourceLineNo">850</span> insertFileIntoStripe(getStripeCopy(stripeIndex), sf);<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> continue;<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> }<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> }<a name="line.853"></a> |
| <span class="sourceLineNo">854</span><a name="line.854"></a> |
| <span class="sourceLineNo">855</span> // Make a new candidate stripe.<a name="line.855"></a> |
| <span class="sourceLineNo">856</span> if (newStripes == null) {<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> newStripes = new TreeMap<>(MAP_COMPARATOR);<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> }<a name="line.858"></a> |
| <span class="sourceLineNo">859</span> HStoreFile oldSf = newStripes.put(endRow, sf);<a name="line.859"></a> |
| <span class="sourceLineNo">860</span> if (oldSf != null) {<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> throw new IOException("Compactor has produced multiple files for the stripe ending in ["<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> + Bytes.toString(endRow) + "], found " + sf.getPath() + " and " + oldSf.getPath());<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> }<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> }<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> return newStripes;<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> }<a name="line.866"></a> |
| <span class="sourceLineNo">867</span><a name="line.867"></a> |
| <span class="sourceLineNo">868</span> /**<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> * Remove compacted files.<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> */<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> private void removeCompactedFiles() throws IOException {<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> for (HStoreFile oldFile : this.compactedFiles) {<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> byte[] oldEndRow = endOf(oldFile);<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> List<HStoreFile> source = null;<a name="line.874"></a> |
| <span class="sourceLineNo">875</span> if (isInvalid(oldEndRow)) {<a name="line.875"></a> |
| <span class="sourceLineNo">876</span> source = getLevel0Copy();<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> } else {<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> int stripeIndex = findStripeIndexByEndRow(oldEndRow);<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> if (stripeIndex < 0) {<a name="line.879"></a> |
| <span class="sourceLineNo">880</span> throw new IOException("An allegedly compacted file [" + oldFile + "] does not belong"<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> + " to a known stripe (end row - [" + Bytes.toString(oldEndRow) + "])");<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> }<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> source = getStripeCopy(stripeIndex);<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> }<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> if (!source.remove(oldFile)) {<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> throw new IOException("An allegedly compacted file [" + oldFile + "] was not found");<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> }<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> }<a name="line.888"></a> |
| <span class="sourceLineNo">889</span> }<a name="line.889"></a> |
| <span class="sourceLineNo">890</span><a name="line.890"></a> |
| <span class="sourceLineNo">891</span> /**<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> * See {@link #addCompactionResults(Collection, Collection)} - updates the stripe list with<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> * new candidate stripes/removes old stripes; produces new set of stripe end rows.<a name="line.893"></a> |
| <span class="sourceLineNo">894</span> * @param newStripes New stripes - files by end row.<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> */<a name="line.895"></a> |
| <span class="sourceLineNo">896</span> private void processNewCandidateStripes(<a name="line.896"></a> |
| <span class="sourceLineNo">897</span> TreeMap<byte[], HStoreFile> newStripes) throws IOException {<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> // Validate that the removed and added aggregate ranges still make for a full key space.<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> boolean hasStripes = !this.stripeFiles.isEmpty();<a name="line.899"></a> |
| <span class="sourceLineNo">900</span> this.stripeEndRows = new ArrayList<>(Arrays.asList(StripeStoreFileManager.this.state.stripeEndRows));<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> int removeFrom = 0;<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> byte[] firstStartRow = startOf(newStripes.firstEntry().getValue());<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> byte[] lastEndRow = newStripes.lastKey();<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> if (!hasStripes && (!isOpen(firstStartRow) || !isOpen(lastEndRow))) {<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> throw new IOException("Newly created stripes do not cover the entire key space.");<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> }<a name="line.906"></a> |
| <span class="sourceLineNo">907</span><a name="line.907"></a> |
| <span class="sourceLineNo">908</span> boolean canAddNewStripes = true;<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> Collection<HStoreFile> filesForL0 = null;<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> if (hasStripes) {<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> // Determine which stripes will need to be removed because they conflict with new stripes.<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> // The new boundaries should match old stripe boundaries, so we should get exact matches.<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> if (isOpen(firstStartRow)) {<a name="line.913"></a> |
| <span class="sourceLineNo">914</span> removeFrom = 0;<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> } else {<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> removeFrom = findStripeIndexByEndRow(firstStartRow);<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> if (removeFrom < 0) throw new IOException("Compaction is trying to add a bad range.");<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> ++removeFrom;<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> }<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> int removeTo = findStripeIndexByEndRow(lastEndRow);<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> if (removeTo < 0) throw new IOException("Compaction is trying to add a bad range.");<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> // See if there are files in the stripes we are trying to replace.<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> ArrayList<HStoreFile> conflictingFiles = new ArrayList<>();<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> for (int removeIndex = removeTo; removeIndex >= removeFrom; --removeIndex) {<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> conflictingFiles.addAll(this.stripeFiles.get(removeIndex));<a name="line.925"></a> |
| <span class="sourceLineNo">926</span> }<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> if (!conflictingFiles.isEmpty()) {<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> // This can be caused by two things - concurrent flush into stripes, or a bug.<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> // Unfortunately, we cannot tell them apart without looking at timing or something<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> // like that. We will assume we are dealing with a flush and dump it into L0.<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> if (isFlush) {<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> long newSize = StripeCompactionPolicy.getTotalFileSize(newStripes.values());<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> LOG.warn("Stripes were created by a flush, but results of size " + newSize<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> + " cannot be added because the stripes have changed");<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> canAddNewStripes = false;<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> filesForL0 = newStripes.values();<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> } else {<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> long oldSize = StripeCompactionPolicy.getTotalFileSize(conflictingFiles);<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> LOG.info(conflictingFiles.size() + " conflicting files (likely created by a flush) "<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> + " of size " + oldSize + " are moved to L0 due to concurrent stripe change");<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> filesForL0 = conflictingFiles;<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> }<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> if (filesForL0 != null) {<a name="line.943"></a> |
| <span class="sourceLineNo">944</span> for (HStoreFile sf : filesForL0) {<a name="line.944"></a> |
| <span class="sourceLineNo">945</span> insertFileIntoStripe(getLevel0Copy(), sf);<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> }<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> l0Results.addAll(filesForL0);<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> }<a name="line.948"></a> |
| <span class="sourceLineNo">949</span> }<a name="line.949"></a> |
| <span class="sourceLineNo">950</span><a name="line.950"></a> |
| <span class="sourceLineNo">951</span> if (canAddNewStripes) {<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> // Remove old empty stripes.<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> int originalCount = this.stripeFiles.size();<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> for (int removeIndex = removeTo; removeIndex >= removeFrom; --removeIndex) {<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> if (removeIndex != originalCount - 1) {<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> this.stripeEndRows.remove(removeIndex);<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> }<a name="line.957"></a> |
| <span class="sourceLineNo">958</span> this.stripeFiles.remove(removeIndex);<a name="line.958"></a> |
| <span class="sourceLineNo">959</span> }<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> }<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> }<a name="line.961"></a> |
| <span class="sourceLineNo">962</span><a name="line.962"></a> |
| <span class="sourceLineNo">963</span> if (!canAddNewStripes) return; // Files were already put into L0.<a name="line.963"></a> |
| <span class="sourceLineNo">964</span><a name="line.964"></a> |
| <span class="sourceLineNo">965</span> // Now, insert new stripes. The total ranges match, so we can insert where we removed.<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> byte[] previousEndRow = null;<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> int insertAt = removeFrom;<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> for (Map.Entry<byte[], HStoreFile> newStripe : newStripes.entrySet()) {<a name="line.968"></a> |
| <span class="sourceLineNo">969</span> if (previousEndRow != null) {<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> // Validate that the ranges are contiguous.<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> assert !isOpen(previousEndRow);<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> byte[] startRow = startOf(newStripe.getValue());<a name="line.972"></a> |
| <span class="sourceLineNo">973</span> if (!rowEquals(previousEndRow, startRow)) {<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> throw new IOException("The new stripes produced by "<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> + (isFlush ? "flush" : "compaction") + " are not contiguous");<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> }<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> }<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> // Add the new stripe.<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> ArrayList<HStoreFile> tmp = new ArrayList<>();<a name="line.979"></a> |
| <span class="sourceLineNo">980</span> tmp.add(newStripe.getValue());<a name="line.980"></a> |
| <span class="sourceLineNo">981</span> stripeFiles.add(insertAt, tmp);<a name="line.981"></a> |
| <span class="sourceLineNo">982</span> previousEndRow = newStripe.getKey();<a name="line.982"></a> |
| <span class="sourceLineNo">983</span> if (!isOpen(previousEndRow)) {<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> stripeEndRows.add(insertAt, previousEndRow);<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> }<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> ++insertAt;<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> }<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> }<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> }<a name="line.989"></a> |
| <span class="sourceLineNo">990</span><a name="line.990"></a> |
| <span class="sourceLineNo">991</span> @Override<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> public List<HStoreFile> getLevel0Files() {<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> return this.state.level0Files;<a name="line.993"></a> |
| <span class="sourceLineNo">994</span> }<a name="line.994"></a> |
| <span class="sourceLineNo">995</span><a name="line.995"></a> |
| <span class="sourceLineNo">996</span> @Override<a name="line.996"></a> |
| <span class="sourceLineNo">997</span> public List<byte[]> getStripeBoundaries() {<a name="line.997"></a> |
| <span class="sourceLineNo">998</span> if (this.state.stripeFiles.isEmpty()) {<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> return Collections.emptyList();<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> }<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> ArrayList<byte[]> result = new ArrayList<>(this.state.stripeEndRows.length + 2);<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> result.add(OPEN_KEY);<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> Collections.addAll(result, this.state.stripeEndRows);<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> result.add(OPEN_KEY);<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span> return result;<a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> }<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span><a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> @Override<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> public ArrayList<ImmutableList<HStoreFile>> getStripes() {<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> return this.state.stripeFiles;<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> }<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span><a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span> @Override<a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> public int getStripeCount() {<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> return this.state.stripeFiles.size();<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> }<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span><a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> @Override<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> public Collection<HStoreFile> getUnneededFiles(long maxTs, List<HStoreFile> filesCompacting) {<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> // 1) We can never get rid of the last file which has the maximum seqid in a stripe.<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span> // 2) Files that are not the latest can't become one due to (1), so the rest are fair game.<a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> State state = this.state;<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> Collection<HStoreFile> expiredStoreFiles = null;<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> for (ImmutableList<HStoreFile> stripe : state.stripeFiles) {<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> expiredStoreFiles = findExpiredFiles(stripe, maxTs, filesCompacting, expiredStoreFiles);<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> }<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> return findExpiredFiles(state.level0Files, maxTs, filesCompacting, expiredStoreFiles);<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> }<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span><a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> private Collection<HStoreFile> findExpiredFiles(ImmutableList<HStoreFile> stripe, long maxTs,<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> List<HStoreFile> filesCompacting, Collection<HStoreFile> expiredStoreFiles) {<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> // Order by seqnum is reversed.<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> for (int i = 1; i < stripe.size(); ++i) {<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> HStoreFile sf = stripe.get(i);<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span> synchronized (sf) {<a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> long fileTs = sf.getReader().getMaxTimestamp();<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> if (fileTs < maxTs && !filesCompacting.contains(sf)) {<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> LOG.info("Found an expired store file: " + sf.getPath() + " whose maxTimestamp is "<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> + fileTs + ", which is below " + maxTs);<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> if (expiredStoreFiles == null) {<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span> expiredStoreFiles = new ArrayList<>();<a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> }<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> expiredStoreFiles.add(sf);<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> }<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span> }<a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> }<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> return expiredStoreFiles;<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> }<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span><a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> @Override<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> public double getCompactionPressure() {<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> State stateLocal = this.state;<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span> if (stateLocal.allFilesCached.size() > blockingFileCount) {<a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> // just a hit to tell others that we have reached the blocking file count.<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> return 2.0;<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> }<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> if (stateLocal.stripeFiles.isEmpty()) {<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> return 0.0;<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> }<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> int blockingFilePerStripe = blockingFileCount / stateLocal.stripeFiles.size();<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span> // do not calculate L0 separately because data will be moved to stripe quickly and in most cases<a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> // we flush data to stripe directly.<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> int delta = stateLocal.level0Files.isEmpty() ? 0 : 1;<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> double max = 0.0;<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> for (ImmutableList<HStoreFile> stripeFile : stateLocal.stripeFiles) {<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> int stripeFileCount = stripeFile.size();<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> double normCount =<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> (double) (stripeFileCount + delta - config.getStripeCompactMinFiles())<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span> / (blockingFilePerStripe - config.getStripeCompactMinFiles());<a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> if (normCount >= 1.0) {<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> // This could happen if stripe is not split evenly. Do not return values that larger than<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> // 1.0 because we have not reached the blocking file count actually.<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> return 1.0;<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> }<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> if (normCount > max) {<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> max = normCount;<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span> }<a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> }<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> return max;<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> }<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span><a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> @Override<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> public Comparator<HStoreFile> getStoreFileComparator() {<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> return StoreFileComparators.SEQ_ID;<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span> }<a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span>}<a name="line.1086"></a> |
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| </div> |
| </body> |
| </html> |
