http://git-wip-us.apache.org/repos/asf/hbase-site/blob/991224b9/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CellChunkImmutableSegment.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CellChunkImmutableSegment.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CellChunkImmutableSegment.html index 42ad63c..85d3a6a 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CellChunkImmutableSegment.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CellChunkImmutableSegment.html @@ -61,220 +61,262 @@ <span class="sourceLineNo">053</span> protected CellChunkImmutableSegment(CellComparator comparator, MemStoreSegmentsIterator iterator,<a name="line.53"></a> <span class="sourceLineNo">054</span> MemStoreLAB memStoreLAB, int numOfCells, MemStoreCompactionStrategy.Action action) {<a name="line.54"></a> <span class="sourceLineNo">055</span> super(null, comparator, memStoreLAB); // initialize the CellSet with NULL<a name="line.55"></a> -<span class="sourceLineNo">056</span> incSize(0, DEEP_OVERHEAD_CCM); // initiate the heapSize with the size of the segment metadata<a name="line.56"></a> -<span class="sourceLineNo">057</span> // build the new CellSet based on CellArrayMap and update the CellSet of the new Segment<a name="line.57"></a> -<span class="sourceLineNo">058</span> initializeCellSet(numOfCells, iterator, action);<a name="line.58"></a> -<span class="sourceLineNo">059</span> }<a name="line.59"></a> -<span class="sourceLineNo">060</span><a name="line.60"></a> -<span class="sourceLineNo">061</span> /**------------------------------------------------------------------------<a name="line.61"></a> -<span class="sourceLineNo">062</span> * C-tor to be used when new CellChunkImmutableSegment is built as a result of flattening<a name="line.62"></a> -<span class="sourceLineNo">063</span> * of CSLMImmutableSegment<a name="line.63"></a> -<span class="sourceLineNo">064</span> * The given iterator returns the Cells that "survived" the compaction.<a name="line.64"></a> -<span class="sourceLineNo">065</span> */<a name="line.65"></a> -<span class="sourceLineNo">066</span> protected CellChunkImmutableSegment(CSLMImmutableSegment segment,<a name="line.66"></a> -<span class="sourceLineNo">067</span> MemStoreSizing memstoreSizing, MemStoreCompactionStrategy.Action action) {<a name="line.67"></a> -<span class="sourceLineNo">068</span> super(segment); // initiailize the upper class<a name="line.68"></a> -<span class="sourceLineNo">069</span> incSize(0,-CSLMImmutableSegment.DEEP_OVERHEAD_CSLM + CellChunkImmutableSegment.DEEP_OVERHEAD_CCM);<a name="line.69"></a> -<span class="sourceLineNo">070</span> int numOfCells = segment.getCellsCount();<a name="line.70"></a> -<span class="sourceLineNo">071</span> // build the new CellSet based on CellChunkMap<a name="line.71"></a> -<span class="sourceLineNo">072</span> reinitializeCellSet(numOfCells, segment.getScanner(Long.MAX_VALUE), segment.getCellSet(),<a name="line.72"></a> -<span class="sourceLineNo">073</span> action);<a name="line.73"></a> -<span class="sourceLineNo">074</span> // arrange the meta-data size, decrease all meta-data sizes related to SkipList;<a name="line.74"></a> -<span class="sourceLineNo">075</span> // add sizes of CellChunkMap entry, decrease also Cell object sizes<a name="line.75"></a> -<span class="sourceLineNo">076</span> // (reinitializeCellSet doesn't take the care for the sizes)<a name="line.76"></a> -<span class="sourceLineNo">077</span> long newSegmentSizeDelta = numOfCells*(indexEntrySize()-ClassSize.CONCURRENT_SKIPLISTMAP_ENTRY);<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span> incSize(0, newSegmentSizeDelta);<a name="line.79"></a> -<span class="sourceLineNo">080</span> memstoreSizing.incMemStoreSize(0, newSegmentSizeDelta);<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> @Override<a name="line.83"></a> -<span class="sourceLineNo">084</span> protected long indexEntrySize() {<a name="line.84"></a> -<span class="sourceLineNo">085</span> return ((long) ClassSize.CELL_CHUNK_MAP_ENTRY - KeyValue.FIXED_OVERHEAD);<a name="line.85"></a> -<span class="sourceLineNo">086</span> }<a name="line.86"></a> -<span class="sourceLineNo">087</span><a name="line.87"></a> -<span class="sourceLineNo">088</span> @Override<a name="line.88"></a> -<span class="sourceLineNo">089</span> protected boolean canBeFlattened() {<a name="line.89"></a> -<span class="sourceLineNo">090</span> return false;<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 METHODS /////////////////////<a name="line.93"></a> -<span class="sourceLineNo">094</span> /*------------------------------------------------------------------------*/<a name="line.94"></a> -<span class="sourceLineNo">095</span> // Create CellSet based on CellChunkMap from compacting iterator<a name="line.95"></a> -<span class="sourceLineNo">096</span> private void initializeCellSet(int numOfCells, MemStoreSegmentsIterator iterator,<a name="line.96"></a> -<span class="sourceLineNo">097</span> MemStoreCompactionStrategy.Action action) {<a name="line.97"></a> -<span class="sourceLineNo">098</span><a name="line.98"></a> -<span class="sourceLineNo">099</span> // calculate how many chunks we will need for index<a name="line.99"></a> -<span class="sourceLineNo">100</span> int chunkSize = ChunkCreator.getInstance().getChunkSize();<a name="line.100"></a> -<span class="sourceLineNo">101</span> int numOfCellsInChunk = CellChunkMap.NUM_OF_CELL_REPS_IN_CHUNK;<a name="line.101"></a> -<span class="sourceLineNo">102</span> int numberOfChunks = calculateNumberOfChunks(numOfCells, numOfCellsInChunk);<a name="line.102"></a> -<span class="sourceLineNo">103</span> int numOfCellsAfterCompaction = 0;<a name="line.103"></a> -<span class="sourceLineNo">104</span> int currentChunkIdx = 0;<a name="line.104"></a> -<span class="sourceLineNo">105</span> int offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.105"></a> -<span class="sourceLineNo">106</span> int numUniqueKeys=0;<a name="line.106"></a> -<span class="sourceLineNo">107</span> Cell prev = null;<a name="line.107"></a> -<span class="sourceLineNo">108</span> // all index Chunks are allocated from ChunkCreator<a name="line.108"></a> -<span class="sourceLineNo">109</span> Chunk[] chunks = new Chunk[numberOfChunks];<a name="line.109"></a> -<span class="sourceLineNo">110</span> for (int i=0; i < numberOfChunks; i++) {<a name="line.110"></a> -<span class="sourceLineNo">111</span> chunks[i] = this.getMemStoreLAB().getNewExternalChunk();<a name="line.111"></a> -<span class="sourceLineNo">112</span> }<a name="line.112"></a> -<span class="sourceLineNo">113</span> while (iterator.hasNext()) { // the iterator hides the elimination logic for compaction<a name="line.113"></a> -<span class="sourceLineNo">114</span> boolean alreadyCopied = false;<a name="line.114"></a> -<span class="sourceLineNo">115</span> Cell c = iterator.next();<a name="line.115"></a> -<span class="sourceLineNo">116</span> numOfCellsAfterCompaction++;<a name="line.116"></a> -<span class="sourceLineNo">117</span> assert(c instanceof ExtendedCell);<a name="line.117"></a> -<span class="sourceLineNo">118</span> if (((ExtendedCell)c).getChunkId() == ExtendedCell.CELL_NOT_BASED_ON_CHUNK) {<a name="line.118"></a> -<span class="sourceLineNo">119</span> // CellChunkMap assumes all cells are allocated on MSLAB.<a name="line.119"></a> -<span class="sourceLineNo">120</span> // Therefore, cells which are not allocated on MSLAB initially,<a name="line.120"></a> -<span class="sourceLineNo">121</span> // are copied into MSLAB here.<a name="line.121"></a> -<span class="sourceLineNo">122</span> c = copyCellIntoMSLAB(c);<a name="line.122"></a> -<span class="sourceLineNo">123</span> alreadyCopied = true;<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span> if (offsetInCurentChunk + ClassSize.CELL_CHUNK_MAP_ENTRY > chunkSize) {<a name="line.125"></a> -<span class="sourceLineNo">126</span> currentChunkIdx++; // continue to the next index chunk<a name="line.126"></a> -<span class="sourceLineNo">127</span> offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.127"></a> -<span class="sourceLineNo">128</span> }<a name="line.128"></a> -<span class="sourceLineNo">129</span> if (action == MemStoreCompactionStrategy.Action.COMPACT && !alreadyCopied) {<a name="line.129"></a> -<span class="sourceLineNo">130</span> // for compaction copy cell to the new segment (MSLAB copy)<a name="line.130"></a> -<span class="sourceLineNo">131</span> c = maybeCloneWithAllocator(c, false);<a name="line.131"></a> -<span class="sourceLineNo">132</span> }<a name="line.132"></a> -<span class="sourceLineNo">133</span> offsetInCurentChunk = // add the Cell reference to the index chunk<a name="line.133"></a> -<span class="sourceLineNo">134</span> createCellReference((ByteBufferKeyValue)c, chunks[currentChunkIdx].getData(),<a name="line.134"></a> -<span class="sourceLineNo">135</span> offsetInCurentChunk);<a name="line.135"></a> -<span class="sourceLineNo">136</span> // the sizes still need to be updated in the new segment<a name="line.136"></a> -<span class="sourceLineNo">137</span> // second parameter true, because in compaction/merge the addition of the cell to new segment<a name="line.137"></a> -<span class="sourceLineNo">138</span> // is always successful<a name="line.138"></a> -<span class="sourceLineNo">139</span> updateMetaInfo(c, true, null); // updates the size per cell<a name="line.139"></a> -<span class="sourceLineNo">140</span> if(action == MemStoreCompactionStrategy.Action.MERGE_COUNT_UNIQUE_KEYS) {<a name="line.140"></a> -<span class="sourceLineNo">141</span> //counting number of unique keys<a name="line.141"></a> -<span class="sourceLineNo">142</span> if (prev != null) {<a name="line.142"></a> -<span class="sourceLineNo">143</span> if (!CellUtil.matchingRowColumnBytes(prev, c)) {<a name="line.143"></a> -<span class="sourceLineNo">144</span> numUniqueKeys++;<a name="line.144"></a> -<span class="sourceLineNo">145</span> }<a name="line.145"></a> -<span class="sourceLineNo">146</span> } else {<a name="line.146"></a> -<span class="sourceLineNo">147</span> numUniqueKeys++;<a name="line.147"></a> -<span class="sourceLineNo">148</span> }<a name="line.148"></a> -<span class="sourceLineNo">149</span> }<a name="line.149"></a> -<span class="sourceLineNo">150</span> prev = c;<a name="line.150"></a> +<span class="sourceLineNo">056</span> long indexOverhead = DEEP_OVERHEAD_CCM;<a name="line.56"></a> +<span class="sourceLineNo">057</span> // memStoreLAB cannot be null in this class<a name="line.57"></a> +<span class="sourceLineNo">058</span> boolean onHeap = getMemStoreLAB().isOnHeap();<a name="line.58"></a> +<span class="sourceLineNo">059</span> // initiate the heapSize with the size of the segment metadata<a name="line.59"></a> +<span class="sourceLineNo">060</span> if(onHeap) {<a name="line.60"></a> +<span class="sourceLineNo">061</span> incSize(0, indexOverhead, 0);<a name="line.61"></a> +<span class="sourceLineNo">062</span> } else {<a name="line.62"></a> +<span class="sourceLineNo">063</span> incSize(0, 0, indexOverhead);<a name="line.63"></a> +<span class="sourceLineNo">064</span> }<a name="line.64"></a> +<span class="sourceLineNo">065</span> // build the new CellSet based on CellArrayMap and update the CellSet of the new Segment<a name="line.65"></a> +<span class="sourceLineNo">066</span> initializeCellSet(numOfCells, iterator, action);<a name="line.66"></a> +<span class="sourceLineNo">067</span> }<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span> /**------------------------------------------------------------------------<a name="line.69"></a> +<span class="sourceLineNo">070</span> * C-tor to be used when new CellChunkImmutableSegment is built as a result of flattening<a name="line.70"></a> +<span class="sourceLineNo">071</span> * of CSLMImmutableSegment<a name="line.71"></a> +<span class="sourceLineNo">072</span> * The given iterator returns the Cells that "survived" the compaction.<a name="line.72"></a> +<span class="sourceLineNo">073</span> */<a name="line.73"></a> +<span class="sourceLineNo">074</span> protected CellChunkImmutableSegment(CSLMImmutableSegment segment,<a name="line.74"></a> +<span class="sourceLineNo">075</span> MemStoreSizing memstoreSizing, MemStoreCompactionStrategy.Action action) {<a name="line.75"></a> +<span class="sourceLineNo">076</span> super(segment); // initiailize the upper class<a name="line.76"></a> +<span class="sourceLineNo">077</span> long indexOverhead = -CSLMImmutableSegment.DEEP_OVERHEAD_CSLM + DEEP_OVERHEAD_CCM;<a name="line.77"></a> +<span class="sourceLineNo">078</span> // memStoreLAB cannot be null in this class<a name="line.78"></a> +<span class="sourceLineNo">079</span> boolean onHeap = getMemStoreLAB().isOnHeap();<a name="line.79"></a> +<span class="sourceLineNo">080</span> // initiate the heapSize with the size of the segment metadata<a name="line.80"></a> +<span class="sourceLineNo">081</span> if(onHeap) {<a name="line.81"></a> +<span class="sourceLineNo">082</span> incSize(0, indexOverhead, 0);<a name="line.82"></a> +<span class="sourceLineNo">083</span> } else {<a name="line.83"></a> +<span class="sourceLineNo">084</span> incSize(0, -CSLMImmutableSegment.DEEP_OVERHEAD_CSLM, DEEP_OVERHEAD_CCM);<a name="line.84"></a> +<span class="sourceLineNo">085</span> }<a name="line.85"></a> +<span class="sourceLineNo">086</span> int numOfCells = segment.getCellsCount();<a name="line.86"></a> +<span class="sourceLineNo">087</span> // build the new CellSet based on CellChunkMap<a name="line.87"></a> +<span class="sourceLineNo">088</span> reinitializeCellSet(numOfCells, segment.getScanner(Long.MAX_VALUE), segment.getCellSet(),<a name="line.88"></a> +<span class="sourceLineNo">089</span> action);<a name="line.89"></a> +<span class="sourceLineNo">090</span> // arrange the meta-data size, decrease all meta-data sizes related to SkipList;<a name="line.90"></a> +<span class="sourceLineNo">091</span> // add sizes of CellChunkMap entry, decrease also Cell object sizes<a name="line.91"></a> +<span class="sourceLineNo">092</span> // (reinitializeCellSet doesn't take the care for the sizes)<a name="line.92"></a> +<span class="sourceLineNo">093</span> long newSegmentSizeDelta = numOfCells*(indexEntrySize()-ClassSize.CONCURRENT_SKIPLISTMAP_ENTRY);<a name="line.93"></a> +<span class="sourceLineNo">094</span> if(onHeap) {<a name="line.94"></a> +<span class="sourceLineNo">095</span> incSize(0, newSegmentSizeDelta, 0);<a name="line.95"></a> +<span class="sourceLineNo">096</span> memstoreSizing.incMemStoreSize(0, newSegmentSizeDelta, 0);<a name="line.96"></a> +<span class="sourceLineNo">097</span> } else {<a name="line.97"></a> +<span class="sourceLineNo">098</span> incSize(0, 0, newSegmentSizeDelta);<a name="line.98"></a> +<span class="sourceLineNo">099</span> memstoreSizing.incMemStoreSize(0, 0, newSegmentSizeDelta);<a name="line.99"></a> +<span class="sourceLineNo">100</span><a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span> }<a name="line.102"></a> +<span class="sourceLineNo">103</span><a name="line.103"></a> +<span class="sourceLineNo">104</span> @Override<a name="line.104"></a> +<span class="sourceLineNo">105</span> protected long indexEntryOnHeapSize(boolean onHeap) {<a name="line.105"></a> +<span class="sourceLineNo">106</span> if(onHeap) {<a name="line.106"></a> +<span class="sourceLineNo">107</span> return indexEntrySize();<a name="line.107"></a> +<span class="sourceLineNo">108</span> }<a name="line.108"></a> +<span class="sourceLineNo">109</span> // else the index is allocated off-heap<a name="line.109"></a> +<span class="sourceLineNo">110</span> return 0;<a name="line.110"></a> +<span class="sourceLineNo">111</span> }<a name="line.111"></a> +<span class="sourceLineNo">112</span><a name="line.112"></a> +<span class="sourceLineNo">113</span> @Override<a name="line.113"></a> +<span class="sourceLineNo">114</span> protected long indexEntryOffHeapSize(boolean offHeap) {<a name="line.114"></a> +<span class="sourceLineNo">115</span> if(offHeap) {<a name="line.115"></a> +<span class="sourceLineNo">116</span> return indexEntrySize();<a name="line.116"></a> +<span class="sourceLineNo">117</span> }<a name="line.117"></a> +<span class="sourceLineNo">118</span> // else the index is allocated on-heap<a name="line.118"></a> +<span class="sourceLineNo">119</span> return 0;<a name="line.119"></a> +<span class="sourceLineNo">120</span> }<a name="line.120"></a> +<span class="sourceLineNo">121</span><a name="line.121"></a> +<span class="sourceLineNo">122</span> @Override<a name="line.122"></a> +<span class="sourceLineNo">123</span> protected long indexEntrySize() {<a name="line.123"></a> +<span class="sourceLineNo">124</span> return ((long) ClassSize.CELL_CHUNK_MAP_ENTRY - KeyValue.FIXED_OVERHEAD);<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> @Override<a name="line.127"></a> +<span class="sourceLineNo">128</span> protected boolean canBeFlattened() {<a name="line.128"></a> +<span class="sourceLineNo">129</span> return false;<a name="line.129"></a> +<span class="sourceLineNo">130</span> }<a name="line.130"></a> +<span class="sourceLineNo">131</span><a name="line.131"></a> +<span class="sourceLineNo">132</span> ///////////////////// PRIVATE METHODS /////////////////////<a name="line.132"></a> +<span class="sourceLineNo">133</span> /*------------------------------------------------------------------------*/<a name="line.133"></a> +<span class="sourceLineNo">134</span> // Create CellSet based on CellChunkMap from compacting iterator<a name="line.134"></a> +<span class="sourceLineNo">135</span> private void initializeCellSet(int numOfCells, MemStoreSegmentsIterator iterator,<a name="line.135"></a> +<span class="sourceLineNo">136</span> MemStoreCompactionStrategy.Action action) {<a name="line.136"></a> +<span class="sourceLineNo">137</span><a name="line.137"></a> +<span class="sourceLineNo">138</span> // calculate how many chunks we will need for index<a name="line.138"></a> +<span class="sourceLineNo">139</span> int chunkSize = ChunkCreator.getInstance().getChunkSize();<a name="line.139"></a> +<span class="sourceLineNo">140</span> int numOfCellsInChunk = CellChunkMap.NUM_OF_CELL_REPS_IN_CHUNK;<a name="line.140"></a> +<span class="sourceLineNo">141</span> int numberOfChunks = calculateNumberOfChunks(numOfCells, numOfCellsInChunk);<a name="line.141"></a> +<span class="sourceLineNo">142</span> int numOfCellsAfterCompaction = 0;<a name="line.142"></a> +<span class="sourceLineNo">143</span> int currentChunkIdx = 0;<a name="line.143"></a> +<span class="sourceLineNo">144</span> int offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.144"></a> +<span class="sourceLineNo">145</span> int numUniqueKeys=0;<a name="line.145"></a> +<span class="sourceLineNo">146</span> Cell prev = null;<a name="line.146"></a> +<span class="sourceLineNo">147</span> // all index Chunks are allocated from ChunkCreator<a name="line.147"></a> +<span class="sourceLineNo">148</span> Chunk[] chunks = new Chunk[numberOfChunks];<a name="line.148"></a> +<span class="sourceLineNo">149</span> for (int i=0; i < numberOfChunks; i++) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> chunks[i] = this.getMemStoreLAB().getNewExternalChunk();<a name="line.150"></a> <span class="sourceLineNo">151</span> }<a name="line.151"></a> -<span class="sourceLineNo">152</span> if(action == MemStoreCompactionStrategy.Action.COMPACT) {<a name="line.152"></a> -<span class="sourceLineNo">153</span> numUniqueKeys = numOfCells;<a name="line.153"></a> -<span class="sourceLineNo">154</span> } else if(action != MemStoreCompactionStrategy.Action.MERGE_COUNT_UNIQUE_KEYS) {<a name="line.154"></a> -<span class="sourceLineNo">155</span> numUniqueKeys = CellSet.UNKNOWN_NUM_UNIQUES;<a name="line.155"></a> -<span class="sourceLineNo">156</span> }<a name="line.156"></a> -<span class="sourceLineNo">157</span> // build the immutable CellSet<a name="line.157"></a> -<span class="sourceLineNo">158</span> CellChunkMap ccm =<a name="line.158"></a> -<span class="sourceLineNo">159</span> new CellChunkMap(getComparator(), chunks, 0, numOfCellsAfterCompaction, false);<a name="line.159"></a> -<span class="sourceLineNo">160</span> this.setCellSet(null, new CellSet(ccm, numUniqueKeys)); // update the CellSet of this Segment<a name="line.160"></a> -<span class="sourceLineNo">161</span> }<a name="line.161"></a> -<span class="sourceLineNo">162</span><a name="line.162"></a> -<span class="sourceLineNo">163</span> /*------------------------------------------------------------------------*/<a name="line.163"></a> -<span class="sourceLineNo">164</span> // Create CellSet based on CellChunkMap from current ConcurrentSkipListMap based CellSet<a name="line.164"></a> -<span class="sourceLineNo">165</span> // (without compacting iterator)<a name="line.165"></a> -<span class="sourceLineNo">166</span> // This is a service for not-flat immutable segments<a name="line.166"></a> -<span class="sourceLineNo">167</span> private void reinitializeCellSet(<a name="line.167"></a> -<span class="sourceLineNo">168</span> int numOfCells, KeyValueScanner segmentScanner, CellSet oldCellSet,<a name="line.168"></a> -<span class="sourceLineNo">169</span> MemStoreCompactionStrategy.Action action) {<a name="line.169"></a> -<span class="sourceLineNo">170</span> Cell curCell;<a name="line.170"></a> -<span class="sourceLineNo">171</span> // calculate how many chunks we will need for metadata<a name="line.171"></a> -<span class="sourceLineNo">172</span> int chunkSize = ChunkCreator.getInstance().getChunkSize();<a name="line.172"></a> -<span class="sourceLineNo">173</span> int numOfCellsInChunk = CellChunkMap.NUM_OF_CELL_REPS_IN_CHUNK;<a name="line.173"></a> -<span class="sourceLineNo">174</span> int numberOfChunks = calculateNumberOfChunks(numOfCells, numOfCellsInChunk);<a name="line.174"></a> -<span class="sourceLineNo">175</span> // all index Chunks are allocated from ChunkCreator<a name="line.175"></a> -<span class="sourceLineNo">176</span> Chunk[] chunks = new Chunk[numberOfChunks];<a name="line.176"></a> -<span class="sourceLineNo">177</span> for (int i=0; i < numberOfChunks; i++) {<a name="line.177"></a> -<span class="sourceLineNo">178</span> chunks[i] = this.getMemStoreLAB().getNewExternalChunk();<a name="line.178"></a> -<span class="sourceLineNo">179</span> }<a name="line.179"></a> -<span class="sourceLineNo">180</span><a name="line.180"></a> -<span class="sourceLineNo">181</span> int currentChunkIdx = 0;<a name="line.181"></a> -<span class="sourceLineNo">182</span> int offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.182"></a> -<span class="sourceLineNo">183</span><a name="line.183"></a> -<span class="sourceLineNo">184</span> int numUniqueKeys=0;<a name="line.184"></a> -<span class="sourceLineNo">185</span> Cell prev = null;<a name="line.185"></a> -<span class="sourceLineNo">186</span> try {<a name="line.186"></a> -<span class="sourceLineNo">187</span> while ((curCell = segmentScanner.next()) != null) {<a name="line.187"></a> -<span class="sourceLineNo">188</span> assert(curCell instanceof ExtendedCell);<a name="line.188"></a> -<span class="sourceLineNo">189</span> if (((ExtendedCell)curCell).getChunkId() == ExtendedCell.CELL_NOT_BASED_ON_CHUNK) {<a name="line.189"></a> -<span class="sourceLineNo">190</span> // CellChunkMap assumes all cells are allocated on MSLAB.<a name="line.190"></a> -<span class="sourceLineNo">191</span> // Therefore, cells which are not allocated on MSLAB initially,<a name="line.191"></a> -<span class="sourceLineNo">192</span> // are copied into MSLAB here.<a name="line.192"></a> -<span class="sourceLineNo">193</span> curCell = copyCellIntoMSLAB(curCell);<a name="line.193"></a> -<span class="sourceLineNo">194</span> }<a name="line.194"></a> -<span class="sourceLineNo">195</span> if (offsetInCurentChunk + ClassSize.CELL_CHUNK_MAP_ENTRY > chunkSize) {<a name="line.195"></a> -<span class="sourceLineNo">196</span> // continue to the next metadata chunk<a name="line.196"></a> -<span class="sourceLineNo">197</span> currentChunkIdx++;<a name="line.197"></a> -<span class="sourceLineNo">198</span> offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.198"></a> -<span class="sourceLineNo">199</span> }<a name="line.199"></a> -<span class="sourceLineNo">200</span> offsetInCurentChunk =<a name="line.200"></a> -<span class="sourceLineNo">201</span> createCellReference((ByteBufferKeyValue) curCell, chunks[currentChunkIdx].getData(),<a name="line.201"></a> -<span class="sourceLineNo">202</span> offsetInCurentChunk);<a name="line.202"></a> -<span class="sourceLineNo">203</span> if(action == MemStoreCompactionStrategy.Action.FLATTEN_COUNT_UNIQUE_KEYS) {<a name="line.203"></a> -<span class="sourceLineNo">204</span> //counting number of unique keys<a name="line.204"></a> -<span class="sourceLineNo">205</span> if (prev != null) {<a name="line.205"></a> -<span class="sourceLineNo">206</span> if (!CellUtil.matchingRowColumn(prev, curCell)) {<a name="line.206"></a> -<span class="sourceLineNo">207</span> numUniqueKeys++;<a name="line.207"></a> -<span class="sourceLineNo">208</span> }<a name="line.208"></a> -<span class="sourceLineNo">209</span> } else {<a name="line.209"></a> -<span class="sourceLineNo">210</span> numUniqueKeys++;<a name="line.210"></a> -<span class="sourceLineNo">211</span> }<a name="line.211"></a> -<span class="sourceLineNo">212</span> }<a name="line.212"></a> -<span class="sourceLineNo">213</span> prev = curCell;<a name="line.213"></a> -<span class="sourceLineNo">214</span> }<a name="line.214"></a> -<span class="sourceLineNo">215</span> if(action != MemStoreCompactionStrategy.Action.FLATTEN_COUNT_UNIQUE_KEYS) {<a name="line.215"></a> -<span class="sourceLineNo">216</span> numUniqueKeys = CellSet.UNKNOWN_NUM_UNIQUES;<a name="line.216"></a> -<span class="sourceLineNo">217</span> }<a name="line.217"></a> -<span class="sourceLineNo">218</span> } catch (IOException ie) {<a name="line.218"></a> -<span class="sourceLineNo">219</span> throw new IllegalStateException(ie);<a name="line.219"></a> -<span class="sourceLineNo">220</span> } finally {<a name="line.220"></a> -<span class="sourceLineNo">221</span> segmentScanner.close();<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> CellChunkMap ccm = new CellChunkMap(getComparator(), chunks, 0, numOfCells, false);<a name="line.224"></a> -<span class="sourceLineNo">225</span> // update the CellSet of this Segment<a name="line.225"></a> -<span class="sourceLineNo">226</span> this.setCellSet(oldCellSet, new CellSet(ccm, numUniqueKeys));<a name="line.226"></a> -<span class="sourceLineNo">227</span> }<a name="line.227"></a> -<span class="sourceLineNo">228</span><a name="line.228"></a> -<span class="sourceLineNo">229</span> /*------------------------------------------------------------------------*/<a name="line.229"></a> -<span class="sourceLineNo">230</span> // for a given cell, write the cell representation on the index chunk<a name="line.230"></a> -<span class="sourceLineNo">231</span> private int createCellReference(ByteBufferKeyValue cell, ByteBuffer idxBuffer, int idxOffset) {<a name="line.231"></a> -<span class="sourceLineNo">232</span> int offset = idxOffset;<a name="line.232"></a> -<span class="sourceLineNo">233</span> int dataChunkID = cell.getChunkId();<a name="line.233"></a> -<span class="sourceLineNo">234</span><a name="line.234"></a> -<span class="sourceLineNo">235</span> offset = ByteBufferUtils.putInt(idxBuffer, offset, dataChunkID); // write data chunk id<a name="line.235"></a> -<span class="sourceLineNo">236</span> offset = ByteBufferUtils.putInt(idxBuffer, offset, cell.getOffset()); // offset<a name="line.236"></a> -<span class="sourceLineNo">237</span> offset = ByteBufferUtils.putInt(idxBuffer, offset, KeyValueUtil.length(cell)); // length<a name="line.237"></a> -<span class="sourceLineNo">238</span> offset = ByteBufferUtils.putLong(idxBuffer, offset, cell.getSequenceId()); // seqId<a name="line.238"></a> -<span class="sourceLineNo">239</span><a name="line.239"></a> -<span class="sourceLineNo">240</span> return offset;<a name="line.240"></a> -<span class="sourceLineNo">241</span> }<a name="line.241"></a> -<span class="sourceLineNo">242</span><a name="line.242"></a> -<span class="sourceLineNo">243</span> private int calculateNumberOfChunks(int numOfCells, int numOfCellsInChunk) {<a name="line.243"></a> -<span class="sourceLineNo">244</span> int numberOfChunks = numOfCells/numOfCellsInChunk;<a name="line.244"></a> -<span class="sourceLineNo">245</span> if(numOfCells%numOfCellsInChunk!=0) { // if cells cannot be divided evenly between chunks<a name="line.245"></a> -<span class="sourceLineNo">246</span> numberOfChunks++; // add one additional chunk<a name="line.246"></a> -<span class="sourceLineNo">247</span> }<a name="line.247"></a> -<span class="sourceLineNo">248</span> return numberOfChunks;<a name="line.248"></a> -<span class="sourceLineNo">249</span> }<a name="line.249"></a> -<span class="sourceLineNo">250</span><a name="line.250"></a> -<span class="sourceLineNo">251</span> private Cell copyCellIntoMSLAB(Cell cell) {<a name="line.251"></a> -<span class="sourceLineNo">252</span> // Take care for a special case when a cell is copied from on-heap to (probably off-heap) MSLAB.<a name="line.252"></a> -<span class="sourceLineNo">253</span> // The cell allocated as an on-heap JVM object (byte array) occupies slightly different<a name="line.253"></a> -<span class="sourceLineNo">254</span> // amount of memory, than when the cell serialized and allocated on the MSLAB.<a name="line.254"></a> -<span class="sourceLineNo">255</span> // Here, we update the heap size of the new segment only for the difference between object and<a name="line.255"></a> -<span class="sourceLineNo">256</span> // serialized size. This is a decrease of the size as serialized cell is a bit smaller.<a name="line.256"></a> -<span class="sourceLineNo">257</span> // The actual size of the cell is not added yet, and will be added (only in compaction)<a name="line.257"></a> -<span class="sourceLineNo">258</span> // in initializeCellSet#updateMetaInfo().<a name="line.258"></a> -<span class="sourceLineNo">259</span> long oldHeapSize = heapSizeChange(cell, true);<a name="line.259"></a> -<span class="sourceLineNo">260</span> long oldCellSize = getCellLength(cell);<a name="line.260"></a> -<span class="sourceLineNo">261</span> cell = maybeCloneWithAllocator(cell, true);<a name="line.261"></a> -<span class="sourceLineNo">262</span> long newHeapSize = heapSizeChange(cell, true);<a name="line.262"></a> -<span class="sourceLineNo">263</span> long newCellSize = getCellLength(cell);<a name="line.263"></a> -<span class="sourceLineNo">264</span> long heapOverhead = newHeapSize - oldHeapSize;<a name="line.264"></a> -<span class="sourceLineNo">265</span> //TODO: maybe need to update the dataSize of the region<a name="line.265"></a> -<span class="sourceLineNo">266</span> incSize(newCellSize - oldCellSize, heapOverhead);<a name="line.266"></a> -<span class="sourceLineNo">267</span> return cell;<a name="line.267"></a> -<span class="sourceLineNo">268</span> }<a name="line.268"></a> -<span class="sourceLineNo">269</span>}<a name="line.269"></a> +<span class="sourceLineNo">152</span> while (iterator.hasNext()) { // the iterator hides the elimination logic for compaction<a name="line.152"></a> +<span class="sourceLineNo">153</span> boolean alreadyCopied = false;<a name="line.153"></a> +<span class="sourceLineNo">154</span> Cell c = iterator.next();<a name="line.154"></a> +<span class="sourceLineNo">155</span> numOfCellsAfterCompaction++;<a name="line.155"></a> +<span class="sourceLineNo">156</span> assert(c instanceof ExtendedCell);<a name="line.156"></a> +<span class="sourceLineNo">157</span> if (((ExtendedCell)c).getChunkId() == ExtendedCell.CELL_NOT_BASED_ON_CHUNK) {<a name="line.157"></a> +<span class="sourceLineNo">158</span> // CellChunkMap assumes all cells are allocated on MSLAB.<a name="line.158"></a> +<span class="sourceLineNo">159</span> // Therefore, cells which are not allocated on MSLAB initially,<a name="line.159"></a> +<span class="sourceLineNo">160</span> // are copied into MSLAB here.<a name="line.160"></a> +<span class="sourceLineNo">161</span> c = copyCellIntoMSLAB(c);<a name="line.161"></a> +<span class="sourceLineNo">162</span> alreadyCopied = true;<a name="line.162"></a> +<span class="sourceLineNo">163</span> }<a name="line.163"></a> +<span class="sourceLineNo">164</span> if (offsetInCurentChunk + ClassSize.CELL_CHUNK_MAP_ENTRY > chunkSize) {<a name="line.164"></a> +<span class="sourceLineNo">165</span> currentChunkIdx++; // continue to the next index chunk<a name="line.165"></a> +<span class="sourceLineNo">166</span> offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> if (action == MemStoreCompactionStrategy.Action.COMPACT && !alreadyCopied) {<a name="line.168"></a> +<span class="sourceLineNo">169</span> // for compaction copy cell to the new segment (MSLAB copy)<a name="line.169"></a> +<span class="sourceLineNo">170</span> c = maybeCloneWithAllocator(c, false);<a name="line.170"></a> +<span class="sourceLineNo">171</span> }<a name="line.171"></a> +<span class="sourceLineNo">172</span> offsetInCurentChunk = // add the Cell reference to the index chunk<a name="line.172"></a> +<span class="sourceLineNo">173</span> createCellReference((ByteBufferKeyValue)c, chunks[currentChunkIdx].getData(),<a name="line.173"></a> +<span class="sourceLineNo">174</span> offsetInCurentChunk);<a name="line.174"></a> +<span class="sourceLineNo">175</span> // the sizes still need to be updated in the new segment<a name="line.175"></a> +<span class="sourceLineNo">176</span> // second parameter true, because in compaction/merge the addition of the cell to new segment<a name="line.176"></a> +<span class="sourceLineNo">177</span> // is always successful<a name="line.177"></a> +<span class="sourceLineNo">178</span> updateMetaInfo(c, true, null); // updates the size per cell<a name="line.178"></a> +<span class="sourceLineNo">179</span> if(action == MemStoreCompactionStrategy.Action.MERGE_COUNT_UNIQUE_KEYS) {<a name="line.179"></a> +<span class="sourceLineNo">180</span> //counting number of unique keys<a name="line.180"></a> +<span class="sourceLineNo">181</span> if (prev != null) {<a name="line.181"></a> +<span class="sourceLineNo">182</span> if (!CellUtil.matchingRowColumnBytes(prev, c)) {<a name="line.182"></a> +<span class="sourceLineNo">183</span> numUniqueKeys++;<a name="line.183"></a> +<span class="sourceLineNo">184</span> }<a name="line.184"></a> +<span class="sourceLineNo">185</span> } else {<a name="line.185"></a> +<span class="sourceLineNo">186</span> numUniqueKeys++;<a name="line.186"></a> +<span class="sourceLineNo">187</span> }<a name="line.187"></a> +<span class="sourceLineNo">188</span> }<a name="line.188"></a> +<span class="sourceLineNo">189</span> prev = c;<a name="line.189"></a> +<span class="sourceLineNo">190</span> }<a name="line.190"></a> +<span class="sourceLineNo">191</span> if(action == MemStoreCompactionStrategy.Action.COMPACT) {<a name="line.191"></a> +<span class="sourceLineNo">192</span> numUniqueKeys = numOfCells;<a name="line.192"></a> +<span class="sourceLineNo">193</span> } else if(action != MemStoreCompactionStrategy.Action.MERGE_COUNT_UNIQUE_KEYS) {<a name="line.193"></a> +<span class="sourceLineNo">194</span> numUniqueKeys = CellSet.UNKNOWN_NUM_UNIQUES;<a name="line.194"></a> +<span class="sourceLineNo">195</span> }<a name="line.195"></a> +<span class="sourceLineNo">196</span> // build the immutable CellSet<a name="line.196"></a> +<span class="sourceLineNo">197</span> CellChunkMap ccm =<a name="line.197"></a> +<span class="sourceLineNo">198</span> new CellChunkMap(getComparator(), chunks, 0, numOfCellsAfterCompaction, false);<a name="line.198"></a> +<span class="sourceLineNo">199</span> this.setCellSet(null, new CellSet(ccm, numUniqueKeys)); // update the CellSet of this Segment<a name="line.199"></a> +<span class="sourceLineNo">200</span> }<a name="line.200"></a> +<span class="sourceLineNo">201</span><a name="line.201"></a> +<span class="sourceLineNo">202</span> /*------------------------------------------------------------------------*/<a name="line.202"></a> +<span class="sourceLineNo">203</span> // Create CellSet based on CellChunkMap from current ConcurrentSkipListMap based CellSet<a name="line.203"></a> +<span class="sourceLineNo">204</span> // (without compacting iterator)<a name="line.204"></a> +<span class="sourceLineNo">205</span> // This is a service for not-flat immutable segments<a name="line.205"></a> +<span class="sourceLineNo">206</span> private void reinitializeCellSet(<a name="line.206"></a> +<span class="sourceLineNo">207</span> int numOfCells, KeyValueScanner segmentScanner, CellSet oldCellSet,<a name="line.207"></a> +<span class="sourceLineNo">208</span> MemStoreCompactionStrategy.Action action) {<a name="line.208"></a> +<span class="sourceLineNo">209</span> Cell curCell;<a name="line.209"></a> +<span class="sourceLineNo">210</span> // calculate how many chunks we will need for metadata<a name="line.210"></a> +<span class="sourceLineNo">211</span> int chunkSize = ChunkCreator.getInstance().getChunkSize();<a name="line.211"></a> +<span class="sourceLineNo">212</span> int numOfCellsInChunk = CellChunkMap.NUM_OF_CELL_REPS_IN_CHUNK;<a name="line.212"></a> +<span class="sourceLineNo">213</span> int numberOfChunks = calculateNumberOfChunks(numOfCells, numOfCellsInChunk);<a name="line.213"></a> +<span class="sourceLineNo">214</span> // all index Chunks are allocated from ChunkCreator<a name="line.214"></a> +<span class="sourceLineNo">215</span> Chunk[] chunks = new Chunk[numberOfChunks];<a name="line.215"></a> +<span class="sourceLineNo">216</span> for (int i=0; i < numberOfChunks; i++) {<a name="line.216"></a> +<span class="sourceLineNo">217</span> chunks[i] = this.getMemStoreLAB().getNewExternalChunk();<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> int currentChunkIdx = 0;<a name="line.220"></a> +<span class="sourceLineNo">221</span> int offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.221"></a> +<span class="sourceLineNo">222</span><a name="line.222"></a> +<span class="sourceLineNo">223</span> int numUniqueKeys=0;<a name="line.223"></a> +<span class="sourceLineNo">224</span> Cell prev = null;<a name="line.224"></a> +<span class="sourceLineNo">225</span> try {<a name="line.225"></a> +<span class="sourceLineNo">226</span> while ((curCell = segmentScanner.next()) != null) {<a name="line.226"></a> +<span class="sourceLineNo">227</span> assert(curCell instanceof ExtendedCell);<a name="line.227"></a> +<span class="sourceLineNo">228</span> if (((ExtendedCell)curCell).getChunkId() == ExtendedCell.CELL_NOT_BASED_ON_CHUNK) {<a name="line.228"></a> +<span class="sourceLineNo">229</span> // CellChunkMap assumes all cells are allocated on MSLAB.<a name="line.229"></a> +<span class="sourceLineNo">230</span> // Therefore, cells which are not allocated on MSLAB initially,<a name="line.230"></a> +<span class="sourceLineNo">231</span> // are copied into MSLAB here.<a name="line.231"></a> +<span class="sourceLineNo">232</span> curCell = copyCellIntoMSLAB(curCell);<a name="line.232"></a> +<span class="sourceLineNo">233</span> }<a name="line.233"></a> +<span class="sourceLineNo">234</span> if (offsetInCurentChunk + ClassSize.CELL_CHUNK_MAP_ENTRY > chunkSize) {<a name="line.234"></a> +<span class="sourceLineNo">235</span> // continue to the next metadata chunk<a name="line.235"></a> +<span class="sourceLineNo">236</span> currentChunkIdx++;<a name="line.236"></a> +<span class="sourceLineNo">237</span> offsetInCurentChunk = ChunkCreator.SIZEOF_CHUNK_HEADER;<a name="line.237"></a> +<span class="sourceLineNo">238</span> }<a name="line.238"></a> +<span class="sourceLineNo">239</span> offsetInCurentChunk =<a name="line.239"></a> +<span class="sourceLineNo">240</span> createCellReference((ByteBufferKeyValue) curCell, chunks[currentChunkIdx].getData(),<a name="line.240"></a> +<span class="sourceLineNo">241</span> offsetInCurentChunk);<a name="line.241"></a> +<span class="sourceLineNo">242</span> if(action == MemStoreCompactionStrategy.Action.FLATTEN_COUNT_UNIQUE_KEYS) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> //counting number of unique keys<a name="line.243"></a> +<span class="sourceLineNo">244</span> if (prev != null) {<a name="line.244"></a> +<span class="sourceLineNo">245</span> if (!CellUtil.matchingRowColumn(prev, curCell)) {<a name="line.245"></a> +<span class="sourceLineNo">246</span> numUniqueKeys++;<a name="line.246"></a> +<span class="sourceLineNo">247</span> }<a name="line.247"></a> +<span class="sourceLineNo">248</span> } else {<a name="line.248"></a> +<span class="sourceLineNo">249</span> numUniqueKeys++;<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> prev = curCell;<a name="line.252"></a> +<span class="sourceLineNo">253</span> }<a name="line.253"></a> +<span class="sourceLineNo">254</span> if(action != MemStoreCompactionStrategy.Action.FLATTEN_COUNT_UNIQUE_KEYS) {<a name="line.254"></a> +<span class="sourceLineNo">255</span> numUniqueKeys = CellSet.UNKNOWN_NUM_UNIQUES;<a name="line.255"></a> +<span class="sourceLineNo">256</span> }<a name="line.256"></a> +<span class="sourceLineNo">257</span> } catch (IOException ie) {<a name="line.257"></a> +<span class="sourceLineNo">258</span> throw new IllegalStateException(ie);<a name="line.258"></a> +<span class="sourceLineNo">259</span> } finally {<a name="line.259"></a> +<span class="sourceLineNo">260</span> segmentScanner.close();<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<a name="line.261"></a> +<span class="sourceLineNo">262</span><a name="line.262"></a> +<span class="sourceLineNo">263</span> CellChunkMap ccm = new CellChunkMap(getComparator(), chunks, 0, numOfCells, false);<a name="line.263"></a> +<span class="sourceLineNo">264</span> // update the CellSet of this Segment<a name="line.264"></a> +<span class="sourceLineNo">265</span> this.setCellSet(oldCellSet, new CellSet(ccm, numUniqueKeys));<a name="line.265"></a> +<span class="sourceLineNo">266</span> }<a name="line.266"></a> +<span class="sourceLineNo">267</span><a name="line.267"></a> +<span class="sourceLineNo">268</span> /*------------------------------------------------------------------------*/<a name="line.268"></a> +<span class="sourceLineNo">269</span> // for a given cell, write the cell representation on the index chunk<a name="line.269"></a> +<span class="sourceLineNo">270</span> private int createCellReference(ByteBufferKeyValue cell, ByteBuffer idxBuffer, int idxOffset) {<a name="line.270"></a> +<span class="sourceLineNo">271</span> int offset = idxOffset;<a name="line.271"></a> +<span class="sourceLineNo">272</span> int dataChunkID = cell.getChunkId();<a name="line.272"></a> +<span class="sourceLineNo">273</span><a name="line.273"></a> +<span class="sourceLineNo">274</span> offset = ByteBufferUtils.putInt(idxBuffer, offset, dataChunkID); // write data chunk id<a name="line.274"></a> +<span class="sourceLineNo">275</span> offset = ByteBufferUtils.putInt(idxBuffer, offset, cell.getOffset()); // offset<a name="line.275"></a> +<span class="sourceLineNo">276</span> offset = ByteBufferUtils.putInt(idxBuffer, offset, KeyValueUtil.length(cell)); // length<a name="line.276"></a> +<span class="sourceLineNo">277</span> offset = ByteBufferUtils.putLong(idxBuffer, offset, cell.getSequenceId()); // seqId<a name="line.277"></a> +<span class="sourceLineNo">278</span><a name="line.278"></a> +<span class="sourceLineNo">279</span> return offset;<a name="line.279"></a> +<span class="sourceLineNo">280</span> }<a name="line.280"></a> +<span class="sourceLineNo">281</span><a name="line.281"></a> +<span class="sourceLineNo">282</span> private int calculateNumberOfChunks(int numOfCells, int numOfCellsInChunk) {<a name="line.282"></a> +<span class="sourceLineNo">283</span> int numberOfChunks = numOfCells/numOfCellsInChunk;<a name="line.283"></a> +<span class="sourceLineNo">284</span> if(numOfCells%numOfCellsInChunk!=0) { // if cells cannot be divided evenly between chunks<a name="line.284"></a> +<span class="sourceLineNo">285</span> numberOfChunks++; // add one additional chunk<a name="line.285"></a> +<span class="sourceLineNo">286</span> }<a name="line.286"></a> +<span class="sourceLineNo">287</span> return numberOfChunks;<a name="line.287"></a> +<span class="sourceLineNo">288</span> }<a name="line.288"></a> +<span class="sourceLineNo">289</span><a name="line.289"></a> +<span class="sourceLineNo">290</span> private Cell copyCellIntoMSLAB(Cell cell) {<a name="line.290"></a> +<span class="sourceLineNo">291</span> // Take care for a special case when a cell is copied from on-heap to (probably off-heap) MSLAB.<a name="line.291"></a> +<span class="sourceLineNo">292</span> // The cell allocated as an on-heap JVM object (byte array) occupies slightly different<a name="line.292"></a> +<span class="sourceLineNo">293</span> // amount of memory, than when the cell serialized and allocated on the MSLAB.<a name="line.293"></a> +<span class="sourceLineNo">294</span> // Here, we update the heap size of the new segment only for the difference between object and<a name="line.294"></a> +<span class="sourceLineNo">295</span> // serialized size. This is a decrease of the size as serialized cell is a bit smaller.<a name="line.295"></a> +<span class="sourceLineNo">296</span> // The actual size of the cell is not added yet, and will be added (only in compaction)<a name="line.296"></a> +<span class="sourceLineNo">297</span> // in initializeCellSet#updateMetaInfo().<a name="line.297"></a> +<span class="sourceLineNo">298</span> long oldHeapSize = heapSizeChange(cell, true);<a name="line.298"></a> +<span class="sourceLineNo">299</span> long oldOffHeapSize = offHeapSizeChange(cell, true);<a name="line.299"></a> +<span class="sourceLineNo">300</span> long oldCellSize = getCellLength(cell);<a name="line.300"></a> +<span class="sourceLineNo">301</span> cell = maybeCloneWithAllocator(cell, true);<a name="line.301"></a> +<span class="sourceLineNo">302</span> long newHeapSize = heapSizeChange(cell, true);<a name="line.302"></a> +<span class="sourceLineNo">303</span> long newOffHeapSize = offHeapSizeChange(cell, true);<a name="line.303"></a> +<span class="sourceLineNo">304</span> long newCellSize = getCellLength(cell);<a name="line.304"></a> +<span class="sourceLineNo">305</span> long heapOverhead = newHeapSize - oldHeapSize;<a name="line.305"></a> +<span class="sourceLineNo">306</span> long offHeapOverhead = newOffHeapSize - oldOffHeapSize;<a name="line.306"></a> +<span class="sourceLineNo">307</span> //TODO: maybe need to update the dataSize of the region<a name="line.307"></a> +<span class="sourceLineNo">308</span> incSize(newCellSize - oldCellSize, heapOverhead, offHeapOverhead);<a name="line.308"></a> +<span class="sourceLineNo">309</span> return cell;<a name="line.309"></a> +<span class="sourceLineNo">310</span> }<a name="line.310"></a> +<span class="sourceLineNo">311</span>}<a name="line.311"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/991224b9/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryFlushRunnable.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryFlushRunnable.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryFlushRunnable.html index 871faa6..5fc0669 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryFlushRunnable.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.InMemoryFlushRunnable.html @@ -165,9 +165,9 @@ <span class="sourceLineNo">157</span> @Override<a name="line.157"></a> <span class="sourceLineNo">158</span> public MemStoreSize size() {<a name="line.158"></a> <span class="sourceLineNo">159</span> MemStoreSizing memstoreSizing = new MemStoreSizing();<a name="line.159"></a> -<span class="sourceLineNo">160</span> memstoreSizing.incMemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.160"></a> +<span class="sourceLineNo">160</span> memstoreSizing.incMemStoreSize(active.getMemStoreSize());<a name="line.160"></a> <span class="sourceLineNo">161</span> for (Segment item : pipeline.getSegments()) {<a name="line.161"></a> -<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(item.keySize(), item.heapSize());<a name="line.162"></a> +<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(item.getMemStoreSize());<a name="line.162"></a> <span class="sourceLineNo">163</span> }<a name="line.163"></a> <span class="sourceLineNo">164</span> return memstoreSizing;<a name="line.164"></a> <span class="sourceLineNo">165</span> }<a name="line.165"></a> @@ -239,13 +239,13 @@ <span class="sourceLineNo">231</span> // if snapshot is empty the tail of the pipeline (or everything in the memstore) is flushed<a name="line.231"></a> <span class="sourceLineNo">232</span> if (compositeSnapshot) {<a name="line.232"></a> <span class="sourceLineNo">233</span> snapshotSizing = pipeline.getPipelineSizing();<a name="line.233"></a> -<span class="sourceLineNo">234</span> snapshotSizing.incMemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.234"></a> +<span class="sourceLineNo">234</span> snapshotSizing.incMemStoreSize(active.getMemStoreSize());<a name="line.234"></a> <span class="sourceLineNo">235</span> } else {<a name="line.235"></a> <span class="sourceLineNo">236</span> snapshotSizing = pipeline.getTailSizing();<a name="line.236"></a> <span class="sourceLineNo">237</span> }<a name="line.237"></a> <span class="sourceLineNo">238</span> }<a name="line.238"></a> <span class="sourceLineNo">239</span> return snapshotSizing.getDataSize() > 0 ? snapshotSizing<a name="line.239"></a> -<span class="sourceLineNo">240</span> : new MemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.240"></a> +<span class="sourceLineNo">240</span> : new MemStoreSize(active.getMemStoreSize());<a name="line.240"></a> <span class="sourceLineNo">241</span> }<a name="line.241"></a> <span class="sourceLineNo">242</span><a name="line.242"></a> <span class="sourceLineNo">243</span> @Override<a name="line.243"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/991224b9/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html index 871faa6..5fc0669 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.IndexType.html @@ -165,9 +165,9 @@ <span class="sourceLineNo">157</span> @Override<a name="line.157"></a> <span class="sourceLineNo">158</span> public MemStoreSize size() {<a name="line.158"></a> <span class="sourceLineNo">159</span> MemStoreSizing memstoreSizing = new MemStoreSizing();<a name="line.159"></a> -<span class="sourceLineNo">160</span> memstoreSizing.incMemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.160"></a> +<span class="sourceLineNo">160</span> memstoreSizing.incMemStoreSize(active.getMemStoreSize());<a name="line.160"></a> <span class="sourceLineNo">161</span> for (Segment item : pipeline.getSegments()) {<a name="line.161"></a> -<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(item.keySize(), item.heapSize());<a name="line.162"></a> +<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(item.getMemStoreSize());<a name="line.162"></a> <span class="sourceLineNo">163</span> }<a name="line.163"></a> <span class="sourceLineNo">164</span> return memstoreSizing;<a name="line.164"></a> <span class="sourceLineNo">165</span> }<a name="line.165"></a> @@ -239,13 +239,13 @@ <span class="sourceLineNo">231</span> // if snapshot is empty the tail of the pipeline (or everything in the memstore) is flushed<a name="line.231"></a> <span class="sourceLineNo">232</span> if (compositeSnapshot) {<a name="line.232"></a> <span class="sourceLineNo">233</span> snapshotSizing = pipeline.getPipelineSizing();<a name="line.233"></a> -<span class="sourceLineNo">234</span> snapshotSizing.incMemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.234"></a> +<span class="sourceLineNo">234</span> snapshotSizing.incMemStoreSize(active.getMemStoreSize());<a name="line.234"></a> <span class="sourceLineNo">235</span> } else {<a name="line.235"></a> <span class="sourceLineNo">236</span> snapshotSizing = pipeline.getTailSizing();<a name="line.236"></a> <span class="sourceLineNo">237</span> }<a name="line.237"></a> <span class="sourceLineNo">238</span> }<a name="line.238"></a> <span class="sourceLineNo">239</span> return snapshotSizing.getDataSize() > 0 ? snapshotSizing<a name="line.239"></a> -<span class="sourceLineNo">240</span> : new MemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.240"></a> +<span class="sourceLineNo">240</span> : new MemStoreSize(active.getMemStoreSize());<a name="line.240"></a> <span class="sourceLineNo">241</span> }<a name="line.241"></a> <span class="sourceLineNo">242</span><a name="line.242"></a> <span class="sourceLineNo">243</span> @Override<a name="line.243"></a> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/991224b9/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html index 871faa6..5fc0669 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/CompactingMemStore.html @@ -165,9 +165,9 @@ <span class="sourceLineNo">157</span> @Override<a name="line.157"></a> <span class="sourceLineNo">158</span> public MemStoreSize size() {<a name="line.158"></a> <span class="sourceLineNo">159</span> MemStoreSizing memstoreSizing = new MemStoreSizing();<a name="line.159"></a> -<span class="sourceLineNo">160</span> memstoreSizing.incMemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.160"></a> +<span class="sourceLineNo">160</span> memstoreSizing.incMemStoreSize(active.getMemStoreSize());<a name="line.160"></a> <span class="sourceLineNo">161</span> for (Segment item : pipeline.getSegments()) {<a name="line.161"></a> -<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(item.keySize(), item.heapSize());<a name="line.162"></a> +<span class="sourceLineNo">162</span> memstoreSizing.incMemStoreSize(item.getMemStoreSize());<a name="line.162"></a> <span class="sourceLineNo">163</span> }<a name="line.163"></a> <span class="sourceLineNo">164</span> return memstoreSizing;<a name="line.164"></a> <span class="sourceLineNo">165</span> }<a name="line.165"></a> @@ -239,13 +239,13 @@ <span class="sourceLineNo">231</span> // if snapshot is empty the tail of the pipeline (or everything in the memstore) is flushed<a name="line.231"></a> <span class="sourceLineNo">232</span> if (compositeSnapshot) {<a name="line.232"></a> <span class="sourceLineNo">233</span> snapshotSizing = pipeline.getPipelineSizing();<a name="line.233"></a> -<span class="sourceLineNo">234</span> snapshotSizing.incMemStoreSize(this.active.keySize(), this.active.heapSize());<a name="line.234"></a> +<span class="sourceLineNo">234</span> snapshotSizing.incMemStoreSize(active.getMemStoreSize());<a name="line.234"></a> <span class="sourceLineNo">235</span> } else {<a name="line.235"></a> <span class="sourceLineNo">236</span> snapshotSizing = pipeline.getTailSizing();<a name="line.236"></a> <span class="sourceLineNo">237</span> }<a name="line.237"></a> <span class="sourceLineNo">238</span> }<a name="line.238"></a> <span class="sourceLineNo">239</span> return snapshotSizing.getDataSize() > 0 ? 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