http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1ff05a18/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html index bf6738e..a62d84e 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryCompactionRunnable.html @@ -74,569 +74,568 @@ <span class="sourceLineNo">066</span><a name="line.66"></a> <span class="sourceLineNo">067</span> private static final Logger LOG = LoggerFactory.getLogger(CompactingMemStore.class);<a name="line.67"></a> <span class="sourceLineNo">068</span> private HStore store;<a name="line.68"></a> -<span class="sourceLineNo">069</span> private RegionServicesForStores regionServices;<a name="line.69"></a> -<span class="sourceLineNo">070</span> private CompactionPipeline pipeline;<a name="line.70"></a> -<span class="sourceLineNo">071</span> protected MemStoreCompactor compactor;<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> private long inmemoryFlushSize; // the threshold on active size for in-memory flush<a name="line.73"></a> -<span class="sourceLineNo">074</span> private final AtomicBoolean inMemoryCompactionInProgress = new AtomicBoolean(false);<a name="line.74"></a> -<span class="sourceLineNo">075</span><a name="line.75"></a> -<span class="sourceLineNo">076</span> // inWalReplay is true while we are synchronously replaying the edits from WAL<a name="line.76"></a> -<span class="sourceLineNo">077</span> private boolean inWalReplay = false;<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span> @VisibleForTesting<a name="line.79"></a> -<span class="sourceLineNo">080</span> protected final AtomicBoolean allowCompaction = new AtomicBoolean(true);<a name="line.80"></a> -<span class="sourceLineNo">081</span> private boolean compositeSnapshot = true;<a name="line.81"></a> -<span class="sourceLineNo">082</span><a name="line.82"></a> -<span class="sourceLineNo">083</span> /**<a name="line.83"></a> -<span class="sourceLineNo">084</span> * Types of indexes (part of immutable segments) to be used after flattening,<a name="line.84"></a> -<span class="sourceLineNo">085</span> * compaction, or merge are applied.<a name="line.85"></a> -<span class="sourceLineNo">086</span> */<a name="line.86"></a> -<span class="sourceLineNo">087</span> public enum IndexType {<a name="line.87"></a> -<span class="sourceLineNo">088</span> CSLM_MAP, // ConcurrentSkipLisMap<a name="line.88"></a> -<span class="sourceLineNo">089</span> ARRAY_MAP, // CellArrayMap<a name="line.89"></a> -<span class="sourceLineNo">090</span> CHUNK_MAP // CellChunkMap<a name="line.90"></a> -<span class="sourceLineNo">091</span> }<a name="line.91"></a> -<span class="sourceLineNo">092</span><a name="line.92"></a> -<span class="sourceLineNo">093</span> private IndexType indexType = IndexType.ARRAY_MAP; // default implementation<a name="line.93"></a> -<span class="sourceLineNo">094</span><a name="line.94"></a> -<span class="sourceLineNo">095</span> public static final long DEEP_OVERHEAD = ClassSize.align( AbstractMemStore.DEEP_OVERHEAD<a name="line.95"></a> -<span class="sourceLineNo">096</span> + 7 * ClassSize.REFERENCE // Store, RegionServicesForStores, CompactionPipeline,<a name="line.96"></a> -<span class="sourceLineNo">097</span> // MemStoreCompactor, inMemoryCompactionInProgress,<a name="line.97"></a> -<span class="sourceLineNo">098</span> // allowCompaction, indexType<a name="line.98"></a> -<span class="sourceLineNo">099</span> + Bytes.SIZEOF_LONG // inmemoryFlushSize<a name="line.99"></a> -<span class="sourceLineNo">100</span> + 2 * Bytes.SIZEOF_BOOLEAN // compositeSnapshot and inWalReplay<a name="line.100"></a> -<span class="sourceLineNo">101</span> + 2 * ClassSize.ATOMIC_BOOLEAN// inMemoryCompactionInProgress and allowCompaction<a name="line.101"></a> -<span class="sourceLineNo">102</span> + CompactionPipeline.DEEP_OVERHEAD + MemStoreCompactor.DEEP_OVERHEAD);<a name="line.102"></a> -<span class="sourceLineNo">103</span><a name="line.103"></a> -<span class="sourceLineNo">104</span> public CompactingMemStore(Configuration conf, CellComparator c,<a name="line.104"></a> -<span class="sourceLineNo">105</span> HStore store, RegionServicesForStores regionServices,<a name="line.105"></a> -<span class="sourceLineNo">106</span> MemoryCompactionPolicy compactionPolicy) throws IOException {<a name="line.106"></a> -<span class="sourceLineNo">107</span> super(conf, c);<a name="line.107"></a> -<span class="sourceLineNo">108</span> this.store = store;<a name="line.108"></a> -<span class="sourceLineNo">109</span> this.regionServices = regionServices;<a name="line.109"></a> -<span class="sourceLineNo">110</span> this.pipeline = new CompactionPipeline(getRegionServices());<a name="line.110"></a> -<span class="sourceLineNo">111</span> this.compactor = createMemStoreCompactor(compactionPolicy);<a name="line.111"></a> -<span class="sourceLineNo">112</span> if (conf.getBoolean(MemStoreLAB.USEMSLAB_KEY, MemStoreLAB.USEMSLAB_DEFAULT)) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> // if user requested to work with MSLABs (whether on- or off-heap), then the<a name="line.113"></a> -<span class="sourceLineNo">114</span> // immutable segments are going to use CellChunkMap as their index<a name="line.114"></a> -<span class="sourceLineNo">115</span> indexType = IndexType.CHUNK_MAP;<a name="line.115"></a> -<span class="sourceLineNo">116</span> } else {<a name="line.116"></a> -<span class="sourceLineNo">117</span> indexType = IndexType.ARRAY_MAP;<a name="line.117"></a> -<span class="sourceLineNo">118</span> }<a name="line.118"></a> -<span class="sourceLineNo">119</span> // initialization of the flush size should happen after initialization of the index type<a name="line.119"></a> -<span class="sourceLineNo">120</span> // so do not transfer the following method<a name="line.120"></a> -<span class="sourceLineNo">121</span> initInmemoryFlushSize(conf);<a name="line.121"></a> -<span class="sourceLineNo">122</span> LOG.info("Store={}, in-memory flush size threshold={}, immutable segments index type={}, " +<a name="line.122"></a> -<span class="sourceLineNo">123</span> "compactor={}", this.store.getColumnFamilyName(),<a name="line.123"></a> -<span class="sourceLineNo">124</span> StringUtils.byteDesc(this.inmemoryFlushSize), this.indexType,<a name="line.124"></a> -<span class="sourceLineNo">125</span> (this.compactor == null? "NULL": this.compactor.toString()));<a name="line.125"></a> -<span class="sourceLineNo">126</span> }<a name="line.126"></a> -<span class="sourceLineNo">127</span><a name="line.127"></a> -<span class="sourceLineNo">128</span> @VisibleForTesting<a name="line.128"></a> -<span class="sourceLineNo">129</span> protected MemStoreCompactor createMemStoreCompactor(MemoryCompactionPolicy compactionPolicy)<a name="line.129"></a> -<span class="sourceLineNo">130</span> throws IllegalArgumentIOException {<a name="line.130"></a> -<span class="sourceLineNo">131</span> return new MemStoreCompactor(this, compactionPolicy);<a name="line.131"></a> -<span class="sourceLineNo">132</span> }<a name="line.132"></a> -<span class="sourceLineNo">133</span><a name="line.133"></a> -<span class="sourceLineNo">134</span> private void initInmemoryFlushSize(Configuration conf) {<a name="line.134"></a> -<span class="sourceLineNo">135</span> double factor = 0;<a name="line.135"></a> -<span class="sourceLineNo">136</span> long memstoreFlushSize = getRegionServices().getMemStoreFlushSize();<a name="line.136"></a> -<span class="sourceLineNo">137</span> int numStores = getRegionServices().getNumStores();<a name="line.137"></a> -<span class="sourceLineNo">138</span> if (numStores <= 1) {<a name="line.138"></a> -<span class="sourceLineNo">139</span> // Family number might also be zero in some of our unit test case<a name="line.139"></a> -<span class="sourceLineNo">140</span> numStores = 1;<a name="line.140"></a> -<span class="sourceLineNo">141</span> }<a name="line.141"></a> -<span class="sourceLineNo">142</span> factor = conf.getDouble(IN_MEMORY_FLUSH_THRESHOLD_FACTOR_KEY, 0.0);<a name="line.142"></a> -<span class="sourceLineNo">143</span> if(factor != 0.0) {<a name="line.143"></a> -<span class="sourceLineNo">144</span> // multiply by a factor (the same factor for all index types)<a name="line.144"></a> -<span class="sourceLineNo">145</span> inmemoryFlushSize = (long) (factor * memstoreFlushSize) / numStores;<a name="line.145"></a> -<span class="sourceLineNo">146</span> } else {<a name="line.146"></a> -<span class="sourceLineNo">147</span> inmemoryFlushSize = IN_MEMORY_FLUSH_MULTIPLIER *<a name="line.147"></a> -<span class="sourceLineNo">148</span> conf.getLong(MemStoreLAB.CHUNK_SIZE_KEY, MemStoreLAB.CHUNK_SIZE_DEFAULT);<a name="line.148"></a> -<span class="sourceLineNo">149</span> inmemoryFlushSize -= ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.149"></a> -<span class="sourceLineNo">150</span> }<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> /**<a name="line.153"></a> -<span class="sourceLineNo">154</span> * @return Total memory occupied by this MemStore. This won't include any size occupied by the<a name="line.154"></a> -<span class="sourceLineNo">155</span> * snapshot. We assume the snapshot will get cleared soon. This is not thread safe and<a name="line.155"></a> -<span class="sourceLineNo">156</span> * the memstore may be changed while computing its size. It is the responsibility of the<a name="line.156"></a> -<span class="sourceLineNo">157</span> * caller to make sure this doesn't happen.<a name="line.157"></a> -<span class="sourceLineNo">158</span> */<a name="line.158"></a> -<span class="sourceLineNo">159</span> @Override<a name="line.159"></a> -<span class="sourceLineNo">160</span> public MemStoreSize size() {<a name="line.160"></a> -<span class="sourceLineNo">161</span> MemStoreSizing memstoreSizing = new NonThreadSafeMemStoreSizing();<a name="line.161"></a> -<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(getActive().getMemStoreSize());<a name="line.162"></a> -<span class="sourceLineNo">163</span> for (Segment item : pipeline.getSegments()) {<a name="line.163"></a> -<span class="sourceLineNo">164</span> memstoreSizing.incMemStoreSize(item.getMemStoreSize());<a name="line.164"></a> -<span class="sourceLineNo">165</span> }<a name="line.165"></a> -<span class="sourceLineNo">166</span> return memstoreSizing.getMemStoreSize();<a name="line.166"></a> -<span class="sourceLineNo">167</span> }<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> * This method is called before the flush is executed.<a name="line.170"></a> -<span class="sourceLineNo">171</span> * @return an estimation (lower bound) of the unflushed sequence id in memstore after the flush<a name="line.171"></a> -<span class="sourceLineNo">172</span> * is executed. if memstore will be cleared returns {@code HConstants.NO_SEQNUM}.<a name="line.172"></a> -<span class="sourceLineNo">173</span> */<a name="line.173"></a> -<span class="sourceLineNo">174</span> @Override<a name="line.174"></a> -<span class="sourceLineNo">175</span> public long preFlushSeqIDEstimation() {<a name="line.175"></a> -<span class="sourceLineNo">176</span> if(compositeSnapshot) {<a name="line.176"></a> -<span class="sourceLineNo">177</span> return HConstants.NO_SEQNUM;<a name="line.177"></a> -<span class="sourceLineNo">178</span> }<a name="line.178"></a> -<span class="sourceLineNo">179</span> Segment segment = getLastSegment();<a name="line.179"></a> -<span class="sourceLineNo">180</span> if(segment == null) {<a name="line.180"></a> -<span class="sourceLineNo">181</span> return HConstants.NO_SEQNUM;<a name="line.181"></a> -<span class="sourceLineNo">182</span> }<a name="line.182"></a> -<span class="sourceLineNo">183</span> return segment.getMinSequenceId();<a name="line.183"></a> -<span class="sourceLineNo">184</span> }<a name="line.184"></a> -<span class="sourceLineNo">185</span><a name="line.185"></a> -<span class="sourceLineNo">186</span> @Override<a name="line.186"></a> -<span class="sourceLineNo">187</span> public boolean isSloppy() {<a name="line.187"></a> -<span class="sourceLineNo">188</span> return true;<a name="line.188"></a> -<span class="sourceLineNo">189</span> }<a name="line.189"></a> -<span class="sourceLineNo">190</span><a name="line.190"></a> -<span class="sourceLineNo">191</span> /**<a name="line.191"></a> -<span class="sourceLineNo">192</span> * Push the current active memstore segment into the pipeline<a name="line.192"></a> -<span class="sourceLineNo">193</span> * and create a snapshot of the tail of current compaction pipeline<a name="line.193"></a> -<span class="sourceLineNo">194</span> * Snapshot must be cleared by call to {@link #clearSnapshot}.<a name="line.194"></a> -<span class="sourceLineNo">195</span> * {@link #clearSnapshot(long)}.<a name="line.195"></a> -<span class="sourceLineNo">196</span> * @return {@link MemStoreSnapshot}<a name="line.196"></a> -<span class="sourceLineNo">197</span> */<a name="line.197"></a> -<span class="sourceLineNo">198</span> @Override<a name="line.198"></a> -<span class="sourceLineNo">199</span> public MemStoreSnapshot snapshot() {<a name="line.199"></a> -<span class="sourceLineNo">200</span> // If snapshot currently has entries, then flusher failed or didn't call<a name="line.200"></a> -<span class="sourceLineNo">201</span> // cleanup. Log a warning.<a name="line.201"></a> -<span class="sourceLineNo">202</span> if (!this.snapshot.isEmpty()) {<a name="line.202"></a> -<span class="sourceLineNo">203</span> LOG.warn("Snapshot called again without clearing previous. " +<a name="line.203"></a> -<span class="sourceLineNo">204</span> "Doing nothing. Another ongoing flush or did we fail last attempt?");<a name="line.204"></a> -<span class="sourceLineNo">205</span> } else {<a name="line.205"></a> -<span class="sourceLineNo">206</span> LOG.debug("FLUSHING TO DISK {}, store={}",<a name="line.206"></a> -<span class="sourceLineNo">207</span> getRegionServices().getRegionInfo().getEncodedName(), getFamilyName());<a name="line.207"></a> -<span class="sourceLineNo">208</span> stopCompaction();<a name="line.208"></a> -<span class="sourceLineNo">209</span> // region level lock ensures pushing active to pipeline is done in isolation<a name="line.209"></a> -<span class="sourceLineNo">210</span> // no concurrent update operations trying to flush the active segment<a name="line.210"></a> -<span class="sourceLineNo">211</span> pushActiveToPipeline(getActive());<a name="line.211"></a> -<span class="sourceLineNo">212</span> snapshotId = EnvironmentEdgeManager.currentTime();<a name="line.212"></a> -<span class="sourceLineNo">213</span> // in both cases whatever is pushed to snapshot is cleared from the pipeline<a name="line.213"></a> -<span class="sourceLineNo">214</span> if (compositeSnapshot) {<a name="line.214"></a> -<span class="sourceLineNo">215</span> pushPipelineToSnapshot();<a name="line.215"></a> -<span class="sourceLineNo">216</span> } else {<a name="line.216"></a> -<span class="sourceLineNo">217</span> pushTailToSnapshot();<a name="line.217"></a> -<span class="sourceLineNo">218</span> }<a name="line.218"></a> -<span class="sourceLineNo">219</span> compactor.resetStats();<a name="line.219"></a> -<span class="sourceLineNo">220</span> }<a name="line.220"></a> -<span class="sourceLineNo">221</span> return new MemStoreSnapshot(snapshotId, this.snapshot);<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<a name="line.224"></a> -<span class="sourceLineNo">225</span> public MemStoreSize getFlushableSize() {<a name="line.225"></a> -<span class="sourceLineNo">226</span> MemStoreSize mss = getSnapshotSize();<a name="line.226"></a> -<span class="sourceLineNo">227</span> if (mss.getDataSize() == 0) {<a name="line.227"></a> -<span class="sourceLineNo">228</span> // if snapshot is empty the tail of the pipeline (or everything in the memstore) is flushed<a name="line.228"></a> -<span class="sourceLineNo">229</span> if (compositeSnapshot) {<a name="line.229"></a> -<span class="sourceLineNo">230</span> MemStoreSizing memStoreSizing = new NonThreadSafeMemStoreSizing(pipeline.getPipelineSize());<a name="line.230"></a> -<span class="sourceLineNo">231</span> MutableSegment currActive = getActive();<a name="line.231"></a> -<span class="sourceLineNo">232</span> if(!currActive.isEmpty()) {<a name="line.232"></a> -<span class="sourceLineNo">233</span> memStoreSizing.incMemStoreSize(currActive.getMemStoreSize());<a name="line.233"></a> -<span class="sourceLineNo">234</span> }<a name="line.234"></a> -<span class="sourceLineNo">235</span> mss = memStoreSizing.getMemStoreSize();<a name="line.235"></a> -<span class="sourceLineNo">236</span> } else {<a name="line.236"></a> -<span class="sourceLineNo">237</span> mss = pipeline.getTailSize();<a name="line.237"></a> -<span class="sourceLineNo">238</span> }<a name="line.238"></a> -<span class="sourceLineNo">239</span> }<a name="line.239"></a> -<span class="sourceLineNo">240</span> return mss.getDataSize() > 0? mss: getActive().getMemStoreSize();<a name="line.240"></a> -<span class="sourceLineNo">241</span> }<a name="line.241"></a> +<span class="sourceLineNo">069</span> private CompactionPipeline pipeline;<a name="line.69"></a> +<span class="sourceLineNo">070</span> protected MemStoreCompactor compactor;<a name="line.70"></a> +<span class="sourceLineNo">071</span><a name="line.71"></a> +<span class="sourceLineNo">072</span> private long inmemoryFlushSize; // the threshold on active size for in-memory flush<a name="line.72"></a> +<span class="sourceLineNo">073</span> private final AtomicBoolean inMemoryCompactionInProgress = new AtomicBoolean(false);<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> // inWalReplay is true while we are synchronously replaying the edits from WAL<a name="line.75"></a> +<span class="sourceLineNo">076</span> private boolean inWalReplay = false;<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> @VisibleForTesting<a name="line.78"></a> +<span class="sourceLineNo">079</span> protected final AtomicBoolean allowCompaction = new AtomicBoolean(true);<a name="line.79"></a> +<span class="sourceLineNo">080</span> private boolean compositeSnapshot = true;<a name="line.80"></a> +<span class="sourceLineNo">081</span><a name="line.81"></a> +<span class="sourceLineNo">082</span> /**<a name="line.82"></a> +<span class="sourceLineNo">083</span> * Types of indexes (part of immutable segments) to be used after flattening,<a name="line.83"></a> +<span class="sourceLineNo">084</span> * compaction, or merge are applied.<a name="line.84"></a> +<span class="sourceLineNo">085</span> */<a name="line.85"></a> +<span class="sourceLineNo">086</span> public enum IndexType {<a name="line.86"></a> +<span class="sourceLineNo">087</span> CSLM_MAP, // ConcurrentSkipLisMap<a name="line.87"></a> +<span class="sourceLineNo">088</span> ARRAY_MAP, // CellArrayMap<a name="line.88"></a> +<span class="sourceLineNo">089</span> CHUNK_MAP // CellChunkMap<a name="line.89"></a> +<span class="sourceLineNo">090</span> }<a name="line.90"></a> +<span class="sourceLineNo">091</span><a name="line.91"></a> +<span class="sourceLineNo">092</span> private IndexType indexType = IndexType.ARRAY_MAP; // default implementation<a name="line.92"></a> +<span class="sourceLineNo">093</span><a name="line.93"></a> +<span class="sourceLineNo">094</span> public static final long DEEP_OVERHEAD = ClassSize.align( AbstractMemStore.DEEP_OVERHEAD<a name="line.94"></a> +<span class="sourceLineNo">095</span> + 6 * ClassSize.REFERENCE // Store, CompactionPipeline,<a name="line.95"></a> +<span class="sourceLineNo">096</span> // MemStoreCompactor, inMemoryCompactionInProgress,<a name="line.96"></a> +<span class="sourceLineNo">097</span> // allowCompaction, indexType<a name="line.97"></a> +<span class="sourceLineNo">098</span> + Bytes.SIZEOF_LONG // inmemoryFlushSize<a name="line.98"></a> +<span class="sourceLineNo">099</span> + 2 * Bytes.SIZEOF_BOOLEAN // compositeSnapshot and inWalReplay<a name="line.99"></a> +<span class="sourceLineNo">100</span> + 2 * ClassSize.ATOMIC_BOOLEAN// inMemoryCompactionInProgress and allowCompaction<a name="line.100"></a> +<span class="sourceLineNo">101</span> + CompactionPipeline.DEEP_OVERHEAD + MemStoreCompactor.DEEP_OVERHEAD);<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> public CompactingMemStore(Configuration conf, CellComparator c,<a name="line.103"></a> +<span class="sourceLineNo">104</span> HStore store, RegionServicesForStores regionServices,<a name="line.104"></a> +<span class="sourceLineNo">105</span> MemoryCompactionPolicy compactionPolicy) throws IOException {<a name="line.105"></a> +<span class="sourceLineNo">106</span> super(conf, c, regionServices);<a name="line.106"></a> +<span class="sourceLineNo">107</span> this.store = store;<a name="line.107"></a> +<span class="sourceLineNo">108</span> this.regionServices = regionServices;<a name="line.108"></a> +<span class="sourceLineNo">109</span> this.pipeline = new CompactionPipeline(getRegionServices());<a name="line.109"></a> +<span class="sourceLineNo">110</span> this.compactor = createMemStoreCompactor(compactionPolicy);<a name="line.110"></a> +<span class="sourceLineNo">111</span> if (conf.getBoolean(MemStoreLAB.USEMSLAB_KEY, MemStoreLAB.USEMSLAB_DEFAULT)) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> // if user requested to work with MSLABs (whether on- or off-heap), then the<a name="line.112"></a> +<span class="sourceLineNo">113</span> // immutable segments are going to use CellChunkMap as their index<a name="line.113"></a> +<span class="sourceLineNo">114</span> indexType = IndexType.CHUNK_MAP;<a name="line.114"></a> +<span class="sourceLineNo">115</span> } else {<a name="line.115"></a> +<span class="sourceLineNo">116</span> indexType = IndexType.ARRAY_MAP;<a name="line.116"></a> +<span class="sourceLineNo">117</span> }<a name="line.117"></a> +<span class="sourceLineNo">118</span> // initialization of the flush size should happen after initialization of the index type<a name="line.118"></a> +<span class="sourceLineNo">119</span> // so do not transfer the following method<a name="line.119"></a> +<span class="sourceLineNo">120</span> initInmemoryFlushSize(conf);<a name="line.120"></a> +<span class="sourceLineNo">121</span> LOG.info("Store={}, in-memory flush size threshold={}, immutable segments index type={}, " +<a name="line.121"></a> +<span class="sourceLineNo">122</span> "compactor={}", this.store.getColumnFamilyName(),<a name="line.122"></a> +<span class="sourceLineNo">123</span> StringUtils.byteDesc(this.inmemoryFlushSize), this.indexType,<a name="line.123"></a> +<span class="sourceLineNo">124</span> (this.compactor == null? "NULL": this.compactor.toString()));<a name="line.124"></a> +<span class="sourceLineNo">125</span> }<a name="line.125"></a> +<span class="sourceLineNo">126</span><a name="line.126"></a> +<span class="sourceLineNo">127</span> @VisibleForTesting<a name="line.127"></a> +<span class="sourceLineNo">128</span> protected MemStoreCompactor createMemStoreCompactor(MemoryCompactionPolicy compactionPolicy)<a name="line.128"></a> +<span class="sourceLineNo">129</span> throws IllegalArgumentIOException {<a name="line.129"></a> +<span class="sourceLineNo">130</span> return new MemStoreCompactor(this, compactionPolicy);<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> private void initInmemoryFlushSize(Configuration conf) {<a name="line.133"></a> +<span class="sourceLineNo">134</span> double factor = 0;<a name="line.134"></a> +<span class="sourceLineNo">135</span> long memstoreFlushSize = getRegionServices().getMemStoreFlushSize();<a name="line.135"></a> +<span class="sourceLineNo">136</span> int numStores = getRegionServices().getNumStores();<a name="line.136"></a> +<span class="sourceLineNo">137</span> if (numStores <= 1) {<a name="line.137"></a> +<span class="sourceLineNo">138</span> // Family number might also be zero in some of our unit test case<a name="line.138"></a> +<span class="sourceLineNo">139</span> numStores = 1;<a name="line.139"></a> +<span class="sourceLineNo">140</span> }<a name="line.140"></a> +<span class="sourceLineNo">141</span> factor = conf.getDouble(IN_MEMORY_FLUSH_THRESHOLD_FACTOR_KEY, 0.0);<a name="line.141"></a> +<span class="sourceLineNo">142</span> if(factor != 0.0) {<a name="line.142"></a> +<span class="sourceLineNo">143</span> // multiply by a factor (the same factor for all index types)<a name="line.143"></a> +<span class="sourceLineNo">144</span> inmemoryFlushSize = (long) (factor * memstoreFlushSize) / numStores;<a name="line.144"></a> +<span class="sourceLineNo">145</span> } else {<a name="line.145"></a> +<span class="sourceLineNo">146</span> inmemoryFlushSize = IN_MEMORY_FLUSH_MULTIPLIER *<a name="line.146"></a> +<span class="sourceLineNo">147</span> conf.getLong(MemStoreLAB.CHUNK_SIZE_KEY, MemStoreLAB.CHUNK_SIZE_DEFAULT);<a name="line.147"></a> +<span class="sourceLineNo">148</span> inmemoryFlushSize -= ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.148"></a> +<span class="sourceLineNo">149</span> }<a name="line.149"></a> +<span class="sourceLineNo">150</span> }<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> * @return Total memory occupied by this MemStore. This won't include any size occupied by the<a name="line.153"></a> +<span class="sourceLineNo">154</span> * snapshot. We assume the snapshot will get cleared soon. This is not thread safe and<a name="line.154"></a> +<span class="sourceLineNo">155</span> * the memstore may be changed while computing its size. It is the responsibility of the<a name="line.155"></a> +<span class="sourceLineNo">156</span> * caller to make sure this doesn't happen.<a name="line.156"></a> +<span class="sourceLineNo">157</span> */<a name="line.157"></a> +<span class="sourceLineNo">158</span> @Override<a name="line.158"></a> +<span class="sourceLineNo">159</span> public MemStoreSize size() {<a name="line.159"></a> +<span class="sourceLineNo">160</span> MemStoreSizing memstoreSizing = new NonThreadSafeMemStoreSizing();<a name="line.160"></a> +<span class="sourceLineNo">161</span> memstoreSizing.incMemStoreSize(getActive().getMemStoreSize());<a name="line.161"></a> +<span class="sourceLineNo">162</span> for (Segment item : pipeline.getSegments()) {<a name="line.162"></a> +<span class="sourceLineNo">163</span> memstoreSizing.incMemStoreSize(item.getMemStoreSize());<a name="line.163"></a> +<span class="sourceLineNo">164</span> }<a name="line.164"></a> +<span class="sourceLineNo">165</span> return memstoreSizing.getMemStoreSize();<a name="line.165"></a> +<span class="sourceLineNo">166</span> }<a name="line.166"></a> +<span class="sourceLineNo">167</span><a name="line.167"></a> +<span class="sourceLineNo">168</span> /**<a name="line.168"></a> +<span class="sourceLineNo">169</span> * This method is called before the flush is executed.<a name="line.169"></a> +<span class="sourceLineNo">170</span> * @return an estimation (lower bound) of the unflushed sequence id in memstore after the flush<a name="line.170"></a> +<span class="sourceLineNo">171</span> * is executed. if memstore will be cleared returns {@code HConstants.NO_SEQNUM}.<a name="line.171"></a> +<span class="sourceLineNo">172</span> */<a name="line.172"></a> +<span class="sourceLineNo">173</span> @Override<a name="line.173"></a> +<span class="sourceLineNo">174</span> public long preFlushSeqIDEstimation() {<a name="line.174"></a> +<span class="sourceLineNo">175</span> if(compositeSnapshot) {<a name="line.175"></a> +<span class="sourceLineNo">176</span> return HConstants.NO_SEQNUM;<a name="line.176"></a> +<span class="sourceLineNo">177</span> }<a name="line.177"></a> +<span class="sourceLineNo">178</span> Segment segment = getLastSegment();<a name="line.178"></a> +<span class="sourceLineNo">179</span> if(segment == null) {<a name="line.179"></a> +<span class="sourceLineNo">180</span> return HConstants.NO_SEQNUM;<a name="line.180"></a> +<span class="sourceLineNo">181</span> }<a name="line.181"></a> +<span class="sourceLineNo">182</span> return segment.getMinSequenceId();<a name="line.182"></a> +<span class="sourceLineNo">183</span> }<a name="line.183"></a> +<span class="sourceLineNo">184</span><a name="line.184"></a> +<span class="sourceLineNo">185</span> @Override<a name="line.185"></a> +<span class="sourceLineNo">186</span> public boolean isSloppy() {<a name="line.186"></a> +<span class="sourceLineNo">187</span> return true;<a name="line.187"></a> +<span class="sourceLineNo">188</span> }<a name="line.188"></a> +<span class="sourceLineNo">189</span><a name="line.189"></a> +<span class="sourceLineNo">190</span> /**<a name="line.190"></a> +<span class="sourceLineNo">191</span> * Push the current active memstore segment into the pipeline<a name="line.191"></a> +<span class="sourceLineNo">192</span> * and create a snapshot of the tail of current compaction pipeline<a name="line.192"></a> +<span class="sourceLineNo">193</span> * Snapshot must be cleared by call to {@link #clearSnapshot}.<a name="line.193"></a> +<span class="sourceLineNo">194</span> * {@link #clearSnapshot(long)}.<a name="line.194"></a> +<span class="sourceLineNo">195</span> * @return {@link MemStoreSnapshot}<a name="line.195"></a> +<span class="sourceLineNo">196</span> */<a name="line.196"></a> +<span class="sourceLineNo">197</span> @Override<a name="line.197"></a> +<span class="sourceLineNo">198</span> public MemStoreSnapshot snapshot() {<a name="line.198"></a> +<span class="sourceLineNo">199</span> // If snapshot currently has entries, then flusher failed or didn't call<a name="line.199"></a> +<span class="sourceLineNo">200</span> // cleanup. 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Another ongoing flush or did we fail last attempt?");<a name="line.203"></a> +<span class="sourceLineNo">204</span> } else {<a name="line.204"></a> +<span class="sourceLineNo">205</span> LOG.debug("FLUSHING TO DISK {}, store={}",<a name="line.205"></a> +<span class="sourceLineNo">206</span> getRegionServices().getRegionInfo().getEncodedName(), getFamilyName());<a name="line.206"></a> +<span class="sourceLineNo">207</span> stopCompaction();<a name="line.207"></a> +<span class="sourceLineNo">208</span> // region level lock ensures pushing active to pipeline is done in isolation<a name="line.208"></a> +<span class="sourceLineNo">209</span> // no concurrent update operations trying to flush the active segment<a name="line.209"></a> +<span class="sourceLineNo">210</span> pushActiveToPipeline(getActive());<a name="line.210"></a> +<span class="sourceLineNo">211</span> snapshotId = EnvironmentEdgeManager.currentTime();<a name="line.211"></a> +<span class="sourceLineNo">212</span> // in both cases whatever is pushed to snapshot is cleared from the pipeline<a name="line.212"></a> +<span class="sourceLineNo">213</span> if (compositeSnapshot) {<a name="line.213"></a> +<span class="sourceLineNo">214</span> pushPipelineToSnapshot();<a name="line.214"></a> +<span class="sourceLineNo">215</span> } else {<a name="line.215"></a> +<span class="sourceLineNo">216</span> pushTailToSnapshot();<a name="line.216"></a> +<span class="sourceLineNo">217</span> }<a name="line.217"></a> +<span class="sourceLineNo">218</span> compactor.resetStats();<a name="line.218"></a> +<span class="sourceLineNo">219</span> }<a name="line.219"></a> +<span class="sourceLineNo">220</span> return new MemStoreSnapshot(snapshotId, this.snapshot);<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> @Override<a name="line.223"></a> +<span class="sourceLineNo">224</span> public MemStoreSize getFlushableSize() {<a name="line.224"></a> +<span class="sourceLineNo">225</span> MemStoreSize mss = getSnapshotSize();<a name="line.225"></a> +<span class="sourceLineNo">226</span> if (mss.getDataSize() == 0) {<a name="line.226"></a> +<span class="sourceLineNo">227</span> // if snapshot is empty the tail of the pipeline (or everything in the memstore) is flushed<a name="line.227"></a> +<span class="sourceLineNo">228</span> if (compositeSnapshot) {<a name="line.228"></a> +<span class="sourceLineNo">229</span> MemStoreSizing memStoreSizing = new NonThreadSafeMemStoreSizing(pipeline.getPipelineSize());<a name="line.229"></a> +<span class="sourceLineNo">230</span> MutableSegment currActive = getActive();<a name="line.230"></a> +<span class="sourceLineNo">231</span> if(!currActive.isEmpty()) {<a name="line.231"></a> +<span class="sourceLineNo">232</span> memStoreSizing.incMemStoreSize(currActive.getMemStoreSize());<a name="line.232"></a> +<span class="sourceLineNo">233</span> 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class="sourceLineNo">600</span> * @param cell Find the row that comes after this one. 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"true" : "false");<a name="line.625"></a> -<span class="sourceLineNo">626</span> msg += " inMemoryCompactionInProgress is "+ (inMemoryCompactionInProgress.get() ? 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class="sourceLineNo">261</span> @Override<a name="line.261"></a> +<span class="sourceLineNo">262</span> protected long heapSize() {<a name="line.262"></a> +<span class="sourceLineNo">263</span> // Need to consider heapOverhead of all segments in pipeline and active<a name="line.263"></a> +<span class="sourceLineNo">264</span> long h = getActive().getHeapSize();<a name="line.264"></a> +<span class="sourceLineNo">265</span> for (Segment segment : this.pipeline.getSegments()) {<a name="line.265"></a> +<span class="sourceLineNo">266</span> h += segment.getHeapSize();<a name="line.266"></a> +<span class="sourceLineNo">267</span> }<a name="line.267"></a> +<span class="sourceLineNo">268</span> return h;<a name="line.268"></a> +<span class="sourceLineNo">269</span> }<a name="line.269"></a> +<span class="sourceLineNo">270</span><a name="line.270"></a> +<span class="sourceLineNo">271</span> @Override<a name="line.271"></a> +<span class="sourceLineNo">272</span> public void updateLowestUnflushedSequenceIdInWAL(boolean onlyIfGreater) {<a name="line.272"></a> +<span class="sourceLineNo">273</span> long minSequenceId = pipeline.getMinSequenceId();<a name="line.273"></a> +<span class="sourceLineNo">274</span> if(minSequenceId != Long.MAX_VALUE) {<a name="line.274"></a> +<span class="sourceLineNo">275</span> byte[] encodedRegionName = getRegionServices().getRegionInfo().getEncodedNameAsBytes();<a name="line.275"></a> +<span class="sourceLineNo">276</span> byte[] familyName = getFamilyNameInBytes();<a name="line.276"></a> +<span class="sourceLineNo">277</span> WAL WAL = getRegionServices().getWAL();<a name="line.277"></a> +<span class="sourceLineNo">278</span> if (WAL != null) {<a name="line.278"></a> +<span class="sourceLineNo">279</span> WAL.updateStore(encodedRegionName, familyName, minSequenceId, onlyIfGreater);<a name="line.279"></a> +<span class="sourceLineNo">280</span> }<a name="line.280"></a> +<span class="sourceLineNo">281</span> }<a 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class="sourceLineNo">294</span> * This message intends to inform the MemStore that the replaying edits from WAL<a name="line.294"></a> +<span class="sourceLineNo">295</span> * are done<a name="line.295"></a> +<span class="sourceLineNo">296</span> */<a name="line.296"></a> +<span class="sourceLineNo">297</span> @Override<a name="line.297"></a> +<span class="sourceLineNo">298</span> public void stopReplayingFromWAL() {<a name="line.298"></a> +<span class="sourceLineNo">299</span> inWalReplay = false;<a name="line.299"></a> +<span class="sourceLineNo">300</span> }<a name="line.300"></a> +<span class="sourceLineNo">301</span><a name="line.301"></a> +<span class="sourceLineNo">302</span> /**<a name="line.302"></a> +<span class="sourceLineNo">303</span> * Issue any synchronization and test needed before applying the update<a name="line.303"></a> +<span class="sourceLineNo">304</span> * For compacting memstore this means checking the update can increase the size without<a name="line.304"></a> 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swapCompactedSegments(VersionedSegmentsList versionedList, ImmutableSegment result,<a name="line.348"></a> +<span class="sourceLineNo">349</span> boolean merge) {<a name="line.349"></a> +<span class="sourceLineNo">350</span> // last true stands for updating the region size<a name="line.350"></a> +<span class="sourceLineNo">351</span> return pipeline.swap(versionedList, result, !merge, true);<a name="line.351"></a> +<span class="sourceLineNo">352</span> }<a name="line.352"></a> +<span class="sourceLineNo">353</span><a name="line.353"></a> +<span class="sourceLineNo">354</span> /**<a name="line.354"></a> +<span class="sourceLineNo">355</span> * @param requesterVersion The caller must hold the VersionedList of the pipeline<a name="line.355"></a> +<span class="sourceLineNo">356</span> * with version taken earlier. 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