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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.mob;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.InterruptedIOException;<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.Date;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.HashSet;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Set;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.function.Consumer;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.conf.Configuration;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.fs.Path;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ExtendedCell;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HConstants;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.TableName;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.monitoring.MonitoredTask;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.FlushLifeCycleTracker;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.HMobStore;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.HStore;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.regionserver.InternalScanner;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.regionserver.MemStoreSnapshot;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.regionserver.ScannerContext;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.regionserver.StoreFileWriter;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.regionserver.throttle.ThroughputControlUtil;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.regionserver.throttle.ThroughputController;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.util.StringUtils;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.slf4j.Logger;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.slf4j.LoggerFactory;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableSetMultimap;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span>/**<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * An implementation of the StoreFlusher. It extends the DefaultStoreFlusher. If the store is not a<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * mob store, the flusher flushes the MemStore the same with DefaultStoreFlusher, If the store is a<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * mob store, the flusher flushes the MemStore into two places. One is the store files of HBase, the<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * other is the mob files.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * <ol><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * <li>Cells that are not PUT type or have the delete mark will be directly flushed to HBase.</li><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * <li>If the size of a cell value is larger than a threshold, it'll be flushed to a mob file,<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * another cell with the path of this file will be flushed to HBase.</li><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * <li>If the size of a cell value is smaller than or equal with a threshold, it'll be flushed to<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * HBase directly.</li><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * </ol><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 DefaultMobStoreFlusher extends DefaultStoreFlusher {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> private static final Logger LOG = LoggerFactory.getLogger(DefaultMobStoreFlusher.class);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private final Object flushLock = new Object();<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> private long mobCellValueSizeThreshold = 0;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private Path targetPath;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> private HMobStore mobStore;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> // MOB file reference set<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> static ThreadLocal<Set<String>> mobRefSet = new ThreadLocal<Set<String>>() {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> @Override<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> protected Set<String> initialValue() {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> return new HashSet<String>();<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> };<a name="line.80"></a> |
| <span class="sourceLineNo">081</span><a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public DefaultMobStoreFlusher(Configuration conf, HStore store) throws IOException {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> super(conf, store);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> if (!(store instanceof HMobStore)) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> throw new IllegalArgumentException("The store " + store + " is not a HMobStore");<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> mobCellValueSizeThreshold = store.getColumnFamilyDescriptor().getMobThreshold();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> this.targetPath =<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> MobUtils.getMobFamilyPath(conf, store.getTableName(), store.getColumnFamilyName());<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (!this.store.getFileSystem().exists(targetPath)) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> this.store.getFileSystem().mkdirs(targetPath);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> this.mobStore = (HMobStore) store;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> /**<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * Flushes the snapshot of the MemStore. If this store is not a mob store, flush the cells in the<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * snapshot to store files of HBase. If the store is a mob one, the flusher flushes the MemStore<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * into two places. One is the store files of HBase, the other is the mob files.<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * <ol><a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * <li>Cells that are not PUT type or have the delete mark will be directly flushed to HBase.</li><a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * <li>If the size of a cell value is larger than a threshold, it'll be flushed to a mob file,<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * another cell with the path of this file will be flushed to HBase.</li><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * <li>If the size of a cell value is smaller than or equal with a threshold, it'll be flushed to<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * HBase directly.</li><a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * </ol><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> */<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> @Override<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> public List<Path> flushSnapshot(MemStoreSnapshot snapshot, long cacheFlushId,<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> MonitoredTask status, ThroughputController throughputController, FlushLifeCycleTracker tracker,<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> Consumer<Path> writerCreationTracker) throws IOException {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> ArrayList<Path> result = new ArrayList<>();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> long cellsCount = snapshot.getCellsCount();<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> if (cellsCount == 0) return result; // don't flush if there are no entries<a name="line.114"></a> |
| <span class="sourceLineNo">115</span><a name="line.115"></a> |
| <span class="sourceLineNo">116</span> // Use a store scanner to find which rows to flush.<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> InternalScanner scanner = createScanner(snapshot.getScanners(), tracker);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> StoreFileWriter writer;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> try {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> // TODO: We can fail in the below block before we complete adding this flush to<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> // list of store files. Add cleanup of anything put on filesystem if we fail.<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> synchronized (flushLock) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> status.setStatus("Flushing " + store + ": creating writer");<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // Write the map out to the disk<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> writer = createWriter(snapshot, true, writerCreationTracker);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> IOException e = null;<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> try {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // It's a mob store, flush the cells in a mob way. This is the difference of flushing<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // between a normal and a mob store.<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> performMobFlush(snapshot, cacheFlushId, scanner, writer, status, throughputController,<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> writerCreationTracker);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> } catch (IOException ioe) {<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> e = ioe;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // throw the exception out<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> throw ioe;<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> } finally {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> if (e != null) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> writer.close();<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> } else {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> finalizeWriter(writer, cacheFlushId, status);<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> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> } finally {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> scanner.close();<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> LOG.info("Mob store is flushed, sequenceid=" + cacheFlushId + ", memsize="<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> + StringUtils.TraditionalBinaryPrefix.long2String(snapshot.getDataSize(), "", 1)<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> + ", hasBloomFilter=" + writer.hasGeneralBloom() + ", into tmp file " + writer.getPath());<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> result.add(writer.getPath());<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> return result;<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span><a name="line.153"></a> |
| <span class="sourceLineNo">154</span> /**<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> * Flushes the cells in the mob store.<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> * <ol><a name="line.156"></a> |
| <span class="sourceLineNo">157</span> * In the mob store, the cells with PUT type might have or have no mob tags.<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> * <li>If a cell does not have a mob tag, flushing the cell to different files depends on the<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> * value length. If the length is larger than a threshold, it's flushed to a mob file and the mob<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> * file is flushed to a store file in HBase. Otherwise, directly flush the cell to a store file in<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> * HBase.</li><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> * <li>If a cell have a mob tag, its value is a mob file name, directly flush it to a store file<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> * in HBase.</li><a name="line.163"></a> |
| <span class="sourceLineNo">164</span> * </ol><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> * @param snapshot Memstore snapshot.<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> * @param cacheFlushId Log cache flush sequence number.<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> * @param scanner The scanner of memstore snapshot.<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> * @param writer The store file writer.<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> * @param status Task that represents the flush operation and may be updated with<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> * status.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> * @param throughputController A controller to avoid flush too fast.<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> */<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> protected void performMobFlush(MemStoreSnapshot snapshot, long cacheFlushId,<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> InternalScanner scanner, StoreFileWriter writer, MonitoredTask status,<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> ThroughputController throughputController, Consumer<Path> writerCreationTracker)<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> throws IOException {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> StoreFileWriter mobFileWriter = null;<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> int compactionKVMax =<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> conf.getInt(HConstants.COMPACTION_KV_MAX, HConstants.COMPACTION_KV_MAX_DEFAULT);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> long mobCount = 0;<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> long mobSize = 0;<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> long time = snapshot.getTimeRangeTracker().getMax();<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> mobFileWriter = mobStore.getStoreEngine().requireWritingToTmpDirFirst()<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> ? mobStore.createWriterInTmp(new Date(time), snapshot.getCellsCount(),<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> store.getColumnFamilyDescriptor().getCompressionType(), store.getRegionInfo().getStartKey(),<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> false)<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> : mobStore.createWriter(new Date(time), snapshot.getCellsCount(),<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> store.getColumnFamilyDescriptor().getCompressionType(), store.getRegionInfo().getStartKey(),<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> false, writerCreationTracker);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> // the target path is {tableName}/.mob/{cfName}/mobFiles<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // the relative path is mobFiles<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> byte[] fileName = Bytes.toBytes(mobFileWriter.getPath().getName());<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> ScannerContext scannerContext =<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> ScannerContext.newBuilder().setBatchLimit(compactionKVMax).build();<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> List<ExtendedCell> cells = new ArrayList<>();<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> boolean hasMore;<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> String flushName = ThroughputControlUtil.getNameForThrottling(store, "flush");<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> boolean control =<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> throughputController != null && !store.getRegionInfo().getTable().isSystemTable();<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> if (control) {<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> throughputController.start(flushName);<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> }<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> IOException ioe = null;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> // Clear all past MOB references<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> mobRefSet.get().clear();<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> try {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> do {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> hasMore = scanner.next((List) cells, scannerContext);<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> if (!cells.isEmpty()) {<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> for (ExtendedCell c : cells) {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> // If we know that this KV is going to be included always, then let us<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> // set its memstoreTS to 0. This will help us save space when writing to<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // disk.<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> if (<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> c.getValueLength() <= mobCellValueSizeThreshold || MobUtils.isMobReferenceCell(c)<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> || c.getTypeByte() != KeyValue.Type.Put.getCode()<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> ) {<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> writer.append(c);<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> } else {<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // append the original keyValue in the mob file.<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> mobFileWriter.append(c);<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> mobSize += c.getValueLength();<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> mobCount++;<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // append the tags to the KeyValue.<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> // The key is same, the value is the filename of the mob file<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> ExtendedCell reference =<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> MobUtils.createMobRefCell(c, fileName, this.mobStore.getRefCellTags());<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> writer.append(reference);<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> if (control) {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> throughputController.control(flushName, c.getSerializedSize());<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> }<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> cells.clear();<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> } while (hasMore);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> } catch (InterruptedException e) {<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> ioe =<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> new InterruptedIOException("Interrupted while control throughput of flushing " + flushName);<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> throw ioe;<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> } catch (IOException e) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> ioe = e;<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> throw e;<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> } finally {<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> if (control) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> throughputController.finish(flushName);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> }<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> if (ioe != null) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> mobFileWriter.close();<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><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> if (mobCount > 0) {<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> // commit the mob file from temp folder to target folder.<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> // If the mob file is committed successfully but the store file is not,<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> // the committed mob file will be handled by the sweep tool as an unused<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> // file.<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> status.setStatus("Flushing mob file " + store + ": appending metadata");<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> mobFileWriter.appendMetadata(cacheFlushId, false, mobCount);<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> status.setStatus("Flushing mob file " + store + ": closing flushed file");<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> mobFileWriter.close();<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> mobStore.commitFile(mobFileWriter.getPath(), targetPath);<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> LOG.debug("Flush store file: {}, store: {}", writer.getPath(), getStoreInfo());<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> mobStore.updateMobFlushCount();<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> mobStore.updateMobFlushedCellsCount(mobCount);<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> mobStore.updateMobFlushedCellsSize(mobSize);<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // Add mob reference to store file metadata<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> mobRefSet.get().add(mobFileWriter.getPath().getName());<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> } else {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> try {<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> status.setStatus("Flushing mob file " + store + ": no mob cells, closing flushed file");<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> mobFileWriter.close();<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> // If the mob file is empty, delete it instead of committing.<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> store.getFileSystem().delete(mobFileWriter.getPath(), true);<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> } catch (IOException e) {<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> LOG.error("Failed to delete the temp mob file", e);<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> }<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> }<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span><a name="line.280"></a> |
| <span class="sourceLineNo">281</span> @Override<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> protected void finalizeWriter(StoreFileWriter writer, long cacheFlushSeqNum, MonitoredTask status)<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> throws IOException {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> // Write out the log sequence number that corresponds to this output<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> // hfile. Also write current time in metadata as minFlushTime.<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // The hfile is current up to and including cacheFlushSeqNum.<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> status.setStatus("Flushing " + store + ": appending metadata");<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> writer.appendMetadata(cacheFlushSeqNum, false);<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> writer.appendMobMetadata(ImmutableSetMultimap.<TableName, String> builder()<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> .putAll(store.getTableName(), mobRefSet.get()).build());<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> status.setStatus("Flushing " + store + ": closing flushed file");<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> writer.close();<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 String getStoreInfo() {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> return String.format("[table=%s family=%s region=%s]", store.getTableName().getNameAsString(),<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> store.getColumnFamilyName(), store.getRegionInfo().getEncodedName());<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> }<a name="line.298"></a> |
| <span class="sourceLineNo">299</span>}<a name="line.299"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
