You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/23 14:47:41 UTC
[13/51] [partial] hbase-site git commit: Published site at
6a5b4f2a5c188f8eef4f2250b8b7db7dd1e750e4.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1ff05a18/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MutableSegment.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MutableSegment.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MutableSegment.html
index 598cf81..26b0752 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MutableSegment.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/MutableSegment.html
@@ -55,88 +55,92 @@
<span class="sourceLineNo">047</span> + ClassSize.REFERENCE<a name="line.47"></a>
<span class="sourceLineNo">048</span> + ClassSize.ATOMIC_BOOLEAN);<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
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-<span class="sourceLineNo">052</span> incMemStoreSize(0, DEEP_OVERHEAD, 0); // update the mutable segment metadata<a name="line.52"></a>
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-<span class="sourceLineNo">056</span> * Adds the given cell into the segment<a name="line.56"></a>
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-<span class="sourceLineNo">058</span> * @param mslabUsed whether using MSLAB<a name="line.58"></a>
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-<span class="sourceLineNo">060</span> public void add(Cell cell, boolean mslabUsed, MemStoreSizing memStoreSizing,<a name="line.60"></a>
-<span class="sourceLineNo">061</span> boolean sizeAddedPreOperation) {<a name="line.61"></a>
-<span class="sourceLineNo">062</span> internalAdd(cell, mslabUsed, memStoreSizing, sizeAddedPreOperation);<a name="line.62"></a>
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-<span class="sourceLineNo">066</span> boolean sizeAddedPreOperation) {<a name="line.66"></a>
-<span class="sourceLineNo">067</span> internalAdd(cell, false, memStoreSizing, sizeAddedPreOperation);<a name="line.67"></a>
+<span class="sourceLineNo">050</span> protected MutableSegment(CellSet cellSet, CellComparator comparator,<a name="line.50"></a>
+<span class="sourceLineNo">051</span> MemStoreLAB memStoreLAB, MemStoreSizing memstoreSizing) {<a name="line.51"></a>
+<span class="sourceLineNo">052</span> super(cellSet, comparator, memStoreLAB, TimeRangeTracker.create(TimeRangeTracker.Type.SYNC));<a name="line.52"></a>
+<span class="sourceLineNo">053</span> incMemStoreSize(0, DEEP_OVERHEAD, 0); // update the mutable segment metadata<a name="line.53"></a>
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+<span class="sourceLineNo">055</span> memstoreSizing.incMemStoreSize(0, DEEP_OVERHEAD, 0);<a name="line.55"></a>
+<span class="sourceLineNo">056</span> }<a name="line.56"></a>
+<span class="sourceLineNo">057</span> }<a name="line.57"></a>
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+<span class="sourceLineNo">062</span> * @param mslabUsed whether using MSLAB<a name="line.62"></a>
+<span class="sourceLineNo">063</span> */<a name="line.63"></a>
+<span class="sourceLineNo">064</span> public void add(Cell cell, boolean mslabUsed, MemStoreSizing memStoreSizing,<a name="line.64"></a>
+<span class="sourceLineNo">065</span> boolean sizeAddedPreOperation) {<a name="line.65"></a>
+<span class="sourceLineNo">066</span> internalAdd(cell, mslabUsed, memStoreSizing, sizeAddedPreOperation);<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>
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-<span class="sourceLineNo">070</span> // For this case we want to clean up any other puts<a name="line.70"></a>
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-<span class="sourceLineNo">073</span> Iterator<Cell> it = ss.iterator();<a name="line.73"></a>
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-<span class="sourceLineNo">082</span> }<a name="line.82"></a>
-<span class="sourceLineNo">083</span> // check that this is the row and column we are interested in, otherwise bail<a name="line.83"></a>
-<span class="sourceLineNo">084</span> if (CellUtil.matchingRows(cell, cur) && CellUtil.matchingQualifier(cell, cur)) {<a name="line.84"></a>
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-<span class="sourceLineNo">088</span> // if we get here we have seen at least one version visible to the oldest scanner,<a name="line.88"></a>
-<span class="sourceLineNo">089</span> // which means we can prove that no scanner will see this version<a name="line.89"></a>
-<span class="sourceLineNo">090</span><a name="line.90"></a>
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-<span class="sourceLineNo">093</span> // area. Only the Cell object as such going way. We need to consider cellLen to be<a name="line.93"></a>
-<span class="sourceLineNo">094</span> // decreased there as 0 only. Just keeping it as existing code now. We need to know the<a name="line.94"></a>
-<span class="sourceLineNo">095</span> // removed cell is from MSLAB or not. Will do once HBASE-16438 is in<a name="line.95"></a>
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-<span class="sourceLineNo">098</span> long offHeapSize = offHeapSizeChange(cur, true);<a name="line.98"></a>
-<span class="sourceLineNo">099</span> incMemStoreSize(-cellLen, -heapSize, -offHeapSize);<a name="line.99"></a>
-<span class="sourceLineNo">100</span> if (memStoreSizing != null) {<a name="line.100"></a>
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-<span class="sourceLineNo">103</span> it.remove();<a name="line.103"></a>
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-<span class="sourceLineNo">108</span> } else {<a name="line.108"></a>
-<span class="sourceLineNo">109</span> // past the row or column, done<a name="line.109"></a>
-<span class="sourceLineNo">110</span> break;<a name="line.110"></a>
-<span class="sourceLineNo">111</span> }<a name="line.111"></a>
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-<span class="sourceLineNo">116</span> return flushed.compareAndSet(false, true);<a name="line.116"></a>
+<span class="sourceLineNo">069</span> public void upsert(Cell cell, long readpoint, MemStoreSizing memStoreSizing,<a name="line.69"></a>
+<span class="sourceLineNo">070</span> boolean sizeAddedPreOperation) {<a name="line.70"></a>
+<span class="sourceLineNo">071</span> internalAdd(cell, false, memStoreSizing, sizeAddedPreOperation);<a name="line.71"></a>
+<span class="sourceLineNo">072</span><a name="line.72"></a>
+<span class="sourceLineNo">073</span> // Get the Cells for the row/family/qualifier regardless of timestamp.<a name="line.73"></a>
+<span class="sourceLineNo">074</span> // For this case we want to clean up any other puts<a name="line.74"></a>
+<span class="sourceLineNo">075</span> Cell firstCell = PrivateCellUtil.createFirstOnRowColTS(cell, HConstants.LATEST_TIMESTAMP);<a name="line.75"></a>
+<span class="sourceLineNo">076</span> SortedSet<Cell> ss = this.tailSet(firstCell);<a name="line.76"></a>
+<span class="sourceLineNo">077</span> Iterator<Cell> it = ss.iterator();<a name="line.77"></a>
+<span class="sourceLineNo">078</span> // versions visible to oldest scanner<a name="line.78"></a>
+<span class="sourceLineNo">079</span> int versionsVisible = 0;<a name="line.79"></a>
+<span class="sourceLineNo">080</span> while (it.hasNext()) {<a name="line.80"></a>
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+<span class="sourceLineNo">083</span> if (cell == cur) {<a name="line.83"></a>
+<span class="sourceLineNo">084</span> // ignore the one just put in<a name="line.84"></a>
+<span class="sourceLineNo">085</span> continue;<a name="line.85"></a>
+<span class="sourceLineNo">086</span> }<a name="line.86"></a>
+<span class="sourceLineNo">087</span> // check that this is the row and column we are interested in, otherwise bail<a name="line.87"></a>
+<span class="sourceLineNo">088</span> if (CellUtil.matchingRows(cell, cur) && CellUtil.matchingQualifier(cell, cur)) {<a name="line.88"></a>
+<span class="sourceLineNo">089</span> // only remove Puts that concurrent scanners cannot possibly see<a name="line.89"></a>
+<span class="sourceLineNo">090</span> if (cur.getTypeByte() == KeyValue.Type.Put.getCode() && cur.getSequenceId() <= readpoint) {<a name="line.90"></a>
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+<span class="sourceLineNo">092</span> // if we get here we have seen at least one version visible to the oldest scanner,<a name="line.92"></a>
+<span class="sourceLineNo">093</span> // which means we can prove that no scanner will see this version<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span> // false means there was a change, so give us the size.<a name="line.95"></a>
+<span class="sourceLineNo">096</span> // TODO when the removed cell ie.'cur' having its data in MSLAB, we can not release that<a name="line.96"></a>
+<span class="sourceLineNo">097</span> // area. Only the Cell object as such going way. We need to consider cellLen to be<a name="line.97"></a>
+<span class="sourceLineNo">098</span> // decreased there as 0 only. Just keeping it as existing code now. We need to know the<a name="line.98"></a>
+<span class="sourceLineNo">099</span> // removed cell is from MSLAB or not. Will do once HBASE-16438 is in<a name="line.99"></a>
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+<span class="sourceLineNo">102</span> long offHeapSize = offHeapSizeChange(cur, true);<a name="line.102"></a>
+<span class="sourceLineNo">103</span> incMemStoreSize(-cellLen, -heapSize, -offHeapSize);<a name="line.103"></a>
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+<span class="sourceLineNo">112</span> } else {<a name="line.112"></a>
+<span class="sourceLineNo">113</span> // past the row or column, done<a name="line.113"></a>
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-<span class="sourceLineNo">129</span> return ClassSize.CONCURRENT_SKIPLISTMAP_ENTRY;<a name="line.129"></a>
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+<span class="sourceLineNo">120</span> return flushed.compareAndSet(false, true);<a name="line.120"></a>
+<span class="sourceLineNo">121</span> }<a name="line.121"></a>
+<span class="sourceLineNo">122</span><a name="line.122"></a>
+<span class="sourceLineNo">123</span> /**<a name="line.123"></a>
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1ff05a18/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerAccounting.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerAccounting.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerAccounting.html
index 4782db3..b369d13 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerAccounting.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/RegionServerAccounting.html
@@ -27,248 +27,196 @@
<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.lang.management.MemoryType;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.concurrent.ConcurrentMap;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.util.concurrent.ConcurrentSkipListMap;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.concurrent.atomic.LongAdder;<a name="line.24"></a>
-<span class="sourceLineNo">025</span><a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.io.util.MemorySizeUtil;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.30"></a>
-<span class="sourceLineNo">031</span><a name="line.31"></a>
-<span class="sourceLineNo">032</span>/**<a name="line.32"></a>
-<span class="sourceLineNo">033</span> * RegionServerAccounting keeps record of some basic real time information about<a name="line.33"></a>
-<span class="sourceLineNo">034</span> * the Region Server. Currently, it keeps record the global memstore size and global memstore<a name="line.34"></a>
-<span class="sourceLineNo">035</span> * on-heap and off-heap overhead. It also tracks the replay edits per region.<a name="line.35"></a>
-<span class="sourceLineNo">036</span> */<a name="line.36"></a>
-<span class="sourceLineNo">037</span>@InterfaceAudience.Private<a name="line.37"></a>
-<span class="sourceLineNo">038</span>public class RegionServerAccounting {<a name="line.38"></a>
-<span class="sourceLineNo">039</span> // memstore data size<a name="line.39"></a>
-<span class="sourceLineNo">040</span> private final LongAdder globalMemStoreDataSize = new LongAdder();<a name="line.40"></a>
-<span class="sourceLineNo">041</span> // memstore heap size.<a name="line.41"></a>
-<span class="sourceLineNo">042</span> private final LongAdder globalMemStoreHeapSize = new LongAdder();<a name="line.42"></a>
-<span class="sourceLineNo">043</span> // memstore off-heap size.<a name="line.43"></a>
-<span class="sourceLineNo">044</span> private final LongAdder globalMemStoreOffHeapSize = new LongAdder();<a name="line.44"></a>
-<span class="sourceLineNo">045</span><a name="line.45"></a>
-<span class="sourceLineNo">046</span> // Store the edits size during replaying WAL. Use this to roll back the<a name="line.46"></a>
-<span class="sourceLineNo">047</span> // global memstore size once a region opening failed.<a name="line.47"></a>
-<span class="sourceLineNo">048</span> private final ConcurrentMap<byte[], MemStoreSizing> replayEditsPerRegion =<a name="line.48"></a>
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-<span class="sourceLineNo">053</span> private long globalMemStoreLimitLowMark;<a name="line.53"></a>
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-<span class="sourceLineNo">055</span> private long globalOnHeapMemstoreLimit;<a name="line.55"></a>
-<span class="sourceLineNo">056</span> private long globalOnHeapMemstoreLimitLowMark;<a name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span> public RegionServerAccounting(Configuration conf) {<a name="line.58"></a>
-<span class="sourceLineNo">059</span> Pair<Long, MemoryType> globalMemstoreSizePair = MemorySizeUtil.getGlobalMemStoreSize(conf);<a name="line.59"></a>
-<span class="sourceLineNo">060</span> this.globalMemStoreLimit = globalMemstoreSizePair.getFirst();<a name="line.60"></a>
-<span class="sourceLineNo">061</span> this.memType = globalMemstoreSizePair.getSecond();<a name="line.61"></a>
-<span class="sourceLineNo">062</span> this.globalMemStoreLimitLowMarkPercent =<a name="line.62"></a>
-<span class="sourceLineNo">063</span> MemorySizeUtil.getGlobalMemStoreHeapLowerMark(conf, this.memType == MemoryType.HEAP);<a name="line.63"></a>
-<span class="sourceLineNo">064</span> // When off heap memstore in use we configure the global off heap space for memstore as bytes<a name="line.64"></a>
-<span class="sourceLineNo">065</span> // not as % of max memory size. In such case, the lower water mark should be specified using the<a name="line.65"></a>
-<span class="sourceLineNo">066</span> // key "hbase.regionserver.global.memstore.size.lower.limit" which says % of the global upper<a name="line.66"></a>
-<span class="sourceLineNo">067</span> // bound and defaults to 95%. In on heap case also specifying this way is ideal. But in the past<a name="line.67"></a>
-<span class="sourceLineNo">068</span> // we used to take lower bound also as the % of xmx (38% as default). For backward compatibility<a name="line.68"></a>
-<span class="sourceLineNo">069</span> // for this deprecated config,we will fall back to read that config when new one is missing.<a name="line.69"></a>
-<span class="sourceLineNo">070</span> // Only for on heap case, do this fallback mechanism. For off heap it makes no sense.<a name="line.70"></a>
-<span class="sourceLineNo">071</span> // TODO When to get rid of the deprecated config? ie<a name="line.71"></a>
-<span class="sourceLineNo">072</span> // "hbase.regionserver.global.memstore.lowerLimit". Can get rid of this boolean passing then.<a name="line.72"></a>
-<span class="sourceLineNo">073</span> this.globalMemStoreLimitLowMark =<a name="line.73"></a>
-<span class="sourceLineNo">074</span> (long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.74"></a>
-<span class="sourceLineNo">075</span> this.globalOnHeapMemstoreLimit = MemorySizeUtil.getOnheapGlobalMemStoreSize(conf);<a name="line.75"></a>
-<span class="sourceLineNo">076</span> this.globalOnHeapMemstoreLimitLowMark =<a name="line.76"></a>
-<span class="sourceLineNo">077</span> (long) (this.globalOnHeapMemstoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.77"></a>
+<span class="sourceLineNo">022</span>import java.util.concurrent.atomic.LongAdder;<a name="line.22"></a>
+<span class="sourceLineNo">023</span><a name="line.23"></a>
+<span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.io.util.MemorySizeUtil;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.27"></a>
+<span class="sourceLineNo">028</span><a name="line.28"></a>
+<span class="sourceLineNo">029</span>/**<a name="line.29"></a>
+<span class="sourceLineNo">030</span> * RegionServerAccounting keeps record of some basic real time information about<a name="line.30"></a>
+<span class="sourceLineNo">031</span> * the Region Server. Currently, it keeps record the global memstore size and global memstore<a name="line.31"></a>
+<span class="sourceLineNo">032</span> * on-heap and off-heap overhead. It also tracks the replay edits per region.<a name="line.32"></a>
+<span class="sourceLineNo">033</span> */<a name="line.33"></a>
+<span class="sourceLineNo">034</span>@InterfaceAudience.Private<a name="line.34"></a>
+<span class="sourceLineNo">035</span>public class RegionServerAccounting {<a name="line.35"></a>
+<span class="sourceLineNo">036</span> // memstore data size<a name="line.36"></a>
+<span class="sourceLineNo">037</span> private final LongAdder globalMemStoreDataSize = new LongAdder();<a name="line.37"></a>
+<span class="sourceLineNo">038</span> // memstore heap size.<a name="line.38"></a>
+<span class="sourceLineNo">039</span> private final LongAdder globalMemStoreHeapSize = new LongAdder();<a name="line.39"></a>
+<span class="sourceLineNo">040</span> // memstore off-heap size.<a name="line.40"></a>
+<span class="sourceLineNo">041</span> private final LongAdder globalMemStoreOffHeapSize = new LongAdder();<a name="line.41"></a>
+<span class="sourceLineNo">042</span><a name="line.42"></a>
+<span class="sourceLineNo">043</span> private long globalMemStoreLimit;<a name="line.43"></a>
+<span class="sourceLineNo">044</span> private final float globalMemStoreLimitLowMarkPercent;<a name="line.44"></a>
+<span class="sourceLineNo">045</span> private long globalMemStoreLimitLowMark;<a name="line.45"></a>
+<span class="sourceLineNo">046</span> private final MemoryType memType;<a name="line.46"></a>
+<span class="sourceLineNo">047</span> private long globalOnHeapMemstoreLimit;<a name="line.47"></a>
+<span class="sourceLineNo">048</span> private long globalOnHeapMemstoreLimitLowMark;<a name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span> public RegionServerAccounting(Configuration conf) {<a name="line.50"></a>
+<span class="sourceLineNo">051</span> Pair<Long, MemoryType> globalMemstoreSizePair = MemorySizeUtil.getGlobalMemStoreSize(conf);<a name="line.51"></a>
+<span class="sourceLineNo">052</span> this.globalMemStoreLimit = globalMemstoreSizePair.getFirst();<a name="line.52"></a>
+<span class="sourceLineNo">053</span> this.memType = globalMemstoreSizePair.getSecond();<a name="line.53"></a>
+<span class="sourceLineNo">054</span> this.globalMemStoreLimitLowMarkPercent =<a name="line.54"></a>
+<span class="sourceLineNo">055</span> MemorySizeUtil.getGlobalMemStoreHeapLowerMark(conf, this.memType == MemoryType.HEAP);<a name="line.55"></a>
+<span class="sourceLineNo">056</span> // When off heap memstore in use we configure the global off heap space for memstore as bytes<a name="line.56"></a>
+<span class="sourceLineNo">057</span> // not as % of max memory size. In such case, the lower water mark should be specified using the<a name="line.57"></a>
+<span class="sourceLineNo">058</span> // key "hbase.regionserver.global.memstore.size.lower.limit" which says % of the global upper<a name="line.58"></a>
+<span class="sourceLineNo">059</span> // bound and defaults to 95%. In on heap case also specifying this way is ideal. But in the past<a name="line.59"></a>
+<span class="sourceLineNo">060</span> // we used to take lower bound also as the % of xmx (38% as default). For backward compatibility<a name="line.60"></a>
+<span class="sourceLineNo">061</span> // for this deprecated config,we will fall back to read that config when new one is missing.<a name="line.61"></a>
+<span class="sourceLineNo">062</span> // Only for on heap case, do this fallback mechanism. For off heap it makes no sense.<a name="line.62"></a>
+<span class="sourceLineNo">063</span> // TODO When to get rid of the deprecated config? ie<a name="line.63"></a>
+<span class="sourceLineNo">064</span> // "hbase.regionserver.global.memstore.lowerLimit". Can get rid of this boolean passing then.<a name="line.64"></a>
+<span class="sourceLineNo">065</span> this.globalMemStoreLimitLowMark =<a name="line.65"></a>
+<span class="sourceLineNo">066</span> (long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.66"></a>
+<span class="sourceLineNo">067</span> this.globalOnHeapMemstoreLimit = MemorySizeUtil.getOnheapGlobalMemStoreSize(conf);<a name="line.67"></a>
+<span class="sourceLineNo">068</span> this.globalOnHeapMemstoreLimitLowMark =<a name="line.68"></a>
+<span class="sourceLineNo">069</span> (long) (this.globalOnHeapMemstoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.69"></a>
+<span class="sourceLineNo">070</span> }<a name="line.70"></a>
+<span class="sourceLineNo">071</span><a name="line.71"></a>
+<span class="sourceLineNo">072</span> long getGlobalMemStoreLimit() {<a name="line.72"></a>
+<span class="sourceLineNo">073</span> return this.globalMemStoreLimit;<a name="line.73"></a>
+<span class="sourceLineNo">074</span> }<a name="line.74"></a>
+<span class="sourceLineNo">075</span><a name="line.75"></a>
+<span class="sourceLineNo">076</span> long getGlobalOnHeapMemStoreLimit() {<a name="line.76"></a>
+<span class="sourceLineNo">077</span> return this.globalOnHeapMemstoreLimit;<a name="line.77"></a>
<span class="sourceLineNo">078</span> }<a name="line.78"></a>
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-<span class="sourceLineNo">080</span> long getGlobalMemStoreLimit() {<a name="line.80"></a>
-<span class="sourceLineNo">081</span> return this.globalMemStoreLimit;<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> long getGlobalOnHeapMemStoreLimit() {<a name="line.84"></a>
-<span class="sourceLineNo">085</span> return this.globalOnHeapMemstoreLimit;<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> // Called by the tuners.<a name="line.88"></a>
-<span class="sourceLineNo">089</span> void setGlobalMemStoreLimits(long newGlobalMemstoreLimit) {<a name="line.89"></a>
-<span class="sourceLineNo">090</span> if (this.memType == MemoryType.HEAP) {<a name="line.90"></a>
-<span class="sourceLineNo">091</span> this.globalMemStoreLimit = newGlobalMemstoreLimit;<a name="line.91"></a>
-<span class="sourceLineNo">092</span> this.globalMemStoreLimitLowMark =<a name="line.92"></a>
-<span class="sourceLineNo">093</span> (long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.93"></a>
-<span class="sourceLineNo">094</span> } else {<a name="line.94"></a>
-<span class="sourceLineNo">095</span> this.globalOnHeapMemstoreLimit = newGlobalMemstoreLimit;<a name="line.95"></a>
-<span class="sourceLineNo">096</span> this.globalOnHeapMemstoreLimitLowMark =<a name="line.96"></a>
-<span class="sourceLineNo">097</span> (long) (this.globalOnHeapMemstoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.97"></a>
-<span class="sourceLineNo">098</span> }<a name="line.98"></a>
+<span class="sourceLineNo">080</span> // Called by the tuners.<a name="line.80"></a>
+<span class="sourceLineNo">081</span> void setGlobalMemStoreLimits(long newGlobalMemstoreLimit) {<a name="line.81"></a>
+<span class="sourceLineNo">082</span> if (this.memType == MemoryType.HEAP) {<a name="line.82"></a>
+<span class="sourceLineNo">083</span> this.globalMemStoreLimit = newGlobalMemstoreLimit;<a name="line.83"></a>
+<span class="sourceLineNo">084</span> this.globalMemStoreLimitLowMark =<a name="line.84"></a>
+<span class="sourceLineNo">085</span> (long) (this.globalMemStoreLimit * this.globalMemStoreLimitLowMarkPercent);<a name="line.85"></a>
+<span class="sourceLineNo">086</span> } else {<a name="line.86"></a>
+<span class="sourceLineNo">087</span> this.globalOnHeapMemstoreLimit = newGlobalMemstoreLimit;<a name="line.87"></a>
+<span class="sourceLineNo">088</span> this.globalOnHeapMemstoreLimitLowMark =<a name="line.88"></a>
+<span class="sourceLineNo">089</span> (long) (this.globalOnHeapMemstoreLimit * this.globalMemStoreLimitLowMarkPercent);<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><a name="line.92"></a>
+<span class="sourceLineNo">093</span> boolean isOffheap() {<a name="line.93"></a>
+<span class="sourceLineNo">094</span> return this.memType == MemoryType.NON_HEAP;<a name="line.94"></a>
+<span class="sourceLineNo">095</span> }<a name="line.95"></a>
+<span class="sourceLineNo">096</span><a name="line.96"></a>
+<span class="sourceLineNo">097</span> long getGlobalMemStoreLimitLowMark() {<a name="line.97"></a>
+<span class="sourceLineNo">098</span> return this.globalMemStoreLimitLowMark;<a name="line.98"></a>
<span class="sourceLineNo">099</span> }<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
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-<span class="sourceLineNo">102</span> return this.memType == MemoryType.NON_HEAP;<a name="line.102"></a>
+<span class="sourceLineNo">101</span> float getGlobalMemStoreLimitLowMarkPercent() {<a name="line.101"></a>
+<span class="sourceLineNo">102</span> return this.globalMemStoreLimitLowMarkPercent;<a name="line.102"></a>
<span class="sourceLineNo">103</span> }<a name="line.103"></a>
<span class="sourceLineNo">104</span><a name="line.104"></a>
-<span class="sourceLineNo">105</span> long getGlobalMemStoreLimitLowMark() {<a name="line.105"></a>
-<span class="sourceLineNo">106</span> return this.globalMemStoreLimitLowMark;<a name="line.106"></a>
-<span class="sourceLineNo">107</span> }<a name="line.107"></a>
-<span class="sourceLineNo">108</span><a name="line.108"></a>
-<span class="sourceLineNo">109</span> float getGlobalMemStoreLimitLowMarkPercent() {<a name="line.109"></a>
-<span class="sourceLineNo">110</span> return this.globalMemStoreLimitLowMarkPercent;<a name="line.110"></a>
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-<span class="sourceLineNo">112</span><a name="line.112"></a>
-<span class="sourceLineNo">113</span> /**<a name="line.113"></a>
-<span class="sourceLineNo">114</span> * @return the global Memstore data size in the RegionServer<a name="line.114"></a>
-<span class="sourceLineNo">115</span> */<a name="line.115"></a>
-<span class="sourceLineNo">116</span> public long getGlobalMemStoreDataSize() {<a name="line.116"></a>
-<span class="sourceLineNo">117</span> return globalMemStoreDataSize.sum();<a name="line.117"></a>
-<span class="sourceLineNo">118</span> }<a name="line.118"></a>
-<span class="sourceLineNo">119</span><a name="line.119"></a>
-<span class="sourceLineNo">120</span> /**<a name="line.120"></a>
-<span class="sourceLineNo">121</span> * @return the global memstore heap size in the RegionServer<a name="line.121"></a>
-<span class="sourceLineNo">122</span> */<a name="line.122"></a>
-<span class="sourceLineNo">123</span> public long getGlobalMemStoreHeapSize() {<a name="line.123"></a>
-<span class="sourceLineNo">124</span> return this.globalMemStoreHeapSize.sum();<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> /**<a name="line.127"></a>
-<span class="sourceLineNo">128</span> * @return the global memstore heap size in the RegionServer<a name="line.128"></a>
-<span class="sourceLineNo">129</span> */<a name="line.129"></a>
-<span class="sourceLineNo">130</span> public long getGlobalMemStoreOffHeapSize() {<a name="line.130"></a>
-<span class="sourceLineNo">131</span> return this.globalMemStoreOffHeapSize.sum();<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> void incGlobalMemStoreSize(MemStoreSize mss) {<a name="line.134"></a>
-<span class="sourceLineNo">135</span> incGlobalMemStoreSize(mss.getDataSize(), mss.getHeapSize(), mss.getOffHeapSize());<a name="line.135"></a>
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-<span class="sourceLineNo">137</span><a name="line.137"></a>
-<span class="sourceLineNo">138</span> public void incGlobalMemStoreSize(long dataSizeDelta, long heapSizeDelta, long offHeapSizeDelta) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span> globalMemStoreDataSize.add(dataSizeDelta);<a name="line.139"></a>
-<span class="sourceLineNo">140</span> globalMemStoreHeapSize.add(heapSizeDelta);<a name="line.140"></a>
-<span class="sourceLineNo">141</span> globalMemStoreOffHeapSize.add(offHeapSizeDelta);<a name="line.141"></a>
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-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span> public void decGlobalMemStoreSize(long dataSizeDelta, long heapSizeDelta, long offHeapSizeDelta) {<a name="line.144"></a>
-<span class="sourceLineNo">145</span> globalMemStoreDataSize.add(-dataSizeDelta);<a name="line.145"></a>
-<span class="sourceLineNo">146</span> globalMemStoreHeapSize.add(-heapSizeDelta);<a name="line.146"></a>
-<span class="sourceLineNo">147</span> globalMemStoreOffHeapSize.add(-offHeapSizeDelta);<a name="line.147"></a>
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-<span class="sourceLineNo">151</span> * Return true if we are above the memstore high water mark<a name="line.151"></a>
-<span class="sourceLineNo">152</span> * @return the flushtype<a name="line.152"></a>
-<span class="sourceLineNo">153</span> */<a name="line.153"></a>
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-<span class="sourceLineNo">156</span> // global heap overhead is greater than the global memstore limit<a name="line.156"></a>
-<span class="sourceLineNo">157</span> if (memType == MemoryType.HEAP) {<a name="line.157"></a>
-<span class="sourceLineNo">158</span> if (getGlobalMemStoreHeapSize() >= globalMemStoreLimit) {<a name="line.158"></a>
-<span class="sourceLineNo">159</span> return FlushType.ABOVE_ONHEAP_HIGHER_MARK;<a name="line.159"></a>
-<span class="sourceLineNo">160</span> }<a name="line.160"></a>
-<span class="sourceLineNo">161</span> } else {<a name="line.161"></a>
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-<span class="sourceLineNo">163</span> // 1) If the global memstore off-heap size is greater than the configured<a name="line.163"></a>
-<span class="sourceLineNo">164</span> // 'hbase.regionserver.offheap.global.memstore.size'<a name="line.164"></a>
-<span class="sourceLineNo">165</span> // 2) If the global memstore heap size is greater than the configured onheap<a name="line.165"></a>
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-<span class="sourceLineNo">167</span> // We do this to avoid OOME incase of scenarios where the heap is occupied with<a name="line.167"></a>
-<span class="sourceLineNo">168</span> // lot of onheap references to the cells in memstore<a name="line.168"></a>
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-<span class="sourceLineNo">170</span> // Indicates that global memstore size is above the configured<a name="line.170"></a>
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-<span class="sourceLineNo">174</span> // Indicates that the offheap memstore's heap overhead is greater than the<a name="line.174"></a>
-<span class="sourceLineNo">175</span> // configured 'hbase.regionserver.global.memstore.size'.<a name="line.175"></a>
-<span class="sourceLineNo">176</span> return FlushType.ABOVE_ONHEAP_HIGHER_MARK;<a name="line.176"></a>
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-<span class="sourceLineNo">187</span> // global heap overhead is greater than the global memstore lower mark limit<a name="line.187"></a>
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-<span class="sourceLineNo">208</span> * or equal to 0.0, and any value greater than 1.0 means we enter the emergency state that<a name="line.208"></a>
-<span class="sourceLineNo">209</span> * global memstore size already exceeds lower limit.<a name="line.209"></a>
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-<span class="sourceLineNo">216</span> getGlobalMemStoreHeapSize() * 1.0 / globalOnHeapMemstoreLimitLowMark);<a name="line.216"></a>
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-<span class="sourceLineNo">229</span> // only. First calls to this method to increment the per region reply edits size and then call<a name="line.229"></a>
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-<span class="sourceLineNo">232</span> // this Map.<a name="line.232"></a>
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+<span class="sourceLineNo">107</span> */<a name="line.107"></a>
+<span class="sourceLineNo">108</span> public long getGlobalMemStoreDataSize() {<a name="line.108"></a>
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+<span class="sourceLineNo">112</span> /**<a name="line.112"></a>
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+<span class="sourceLineNo">114</span> */<a name="line.114"></a>
+<span class="sourceLineNo">115</span> public long getGlobalMemStoreHeapSize() {<a name="line.115"></a>
+<span class="sourceLineNo">116</span> return this.globalMemStoreHeapSize.sum();<a name="line.116"></a>
+<span class="sourceLineNo">117</span> }<a name="line.117"></a>
+<span class="sourceLineNo">118</span><a name="line.118"></a>
+<span class="sourceLineNo">119</span> /**<a name="line.119"></a>
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+<span class="sourceLineNo">121</span> */<a name="line.121"></a>
+<span class="sourceLineNo">122</span> public long getGlobalMemStoreOffHeapSize() {<a name="line.122"></a>
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+<span class="sourceLineNo">125</span><a name="line.125"></a>
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+<span class="sourceLineNo">128</span> }<a name="line.128"></a>
+<span class="sourceLineNo">129</span><a name="line.129"></a>
+<span class="sourceLineNo">130</span> public void incGlobalMemStoreSize(long dataSizeDelta, long heapSizeDelta, long offHeapSizeDelta) {<a name="line.130"></a>
+<span class="sourceLineNo">131</span> globalMemStoreDataSize.add(dataSizeDelta);<a name="line.131"></a>
+<span class="sourceLineNo">132</span> globalMemStoreHeapSize.add(heapSizeDelta);<a name="line.132"></a>
+<span class="sourceLineNo">133</span> globalMemStoreOffHeapSize.add(offHeapSizeDelta);<a name="line.133"></a>
+<span class="sourceLineNo">134</span> }<a name="line.134"></a>
+<span class="sourceLineNo">135</span><a name="line.135"></a>
+<span class="sourceLineNo">136</span> public void decGlobalMemStoreSize(long dataSizeDelta, long heapSizeDelta, long offHeapSizeDelta) {<a name="line.136"></a>
+<span class="sourceLineNo">137</span> globalMemStoreDataSize.add(-dataSizeDelta);<a name="line.137"></a>
+<span class="sourceLineNo">138</span> globalMemStoreHeapSize.add(-heapSizeDelta);<a name="line.138"></a>
+<span class="sourceLineNo">139</span> globalMemStoreOffHeapSize.add(-offHeapSizeDelta);<a name="line.139"></a>
+<span class="sourceLineNo">140</span> }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span> /**<a name="line.142"></a>
+<span class="sourceLineNo">143</span> * Return true if we are above the memstore high water mark<a name="line.143"></a>
+<span class="sourceLineNo">144</span> * @return the flushtype<a name="line.144"></a>
+<span class="sourceLineNo">145</span> */<a name="line.145"></a>
+<span class="sourceLineNo">146</span> public FlushType isAboveHighWaterMark() {<a name="line.146"></a>
+<span class="sourceLineNo">147</span> // for onheap memstore we check if the global memstore size and the<a name="line.147"></a>
+<span class="sourceLineNo">148</span> // global heap overhead is greater than the global memstore limit<a name="line.148"></a>
+<span class="sourceLineNo">149</span> if (memType == MemoryType.HEAP) {<a name="line.149"></a>
+<span class="sourceLineNo">150</span> if (getGlobalMemStoreHeapSize() >= globalMemStoreLimit) {<a name="line.150"></a>
+<span class="sourceLineNo">151</span> return FlushType.ABOVE_ONHEAP_HIGHER_MARK;<a name="line.151"></a>
+<span class="sourceLineNo">152</span> }<a name="line.152"></a>
+<span class="sourceLineNo">153</span> } else {<a name="line.153"></a>
+<span class="sourceLineNo">154</span> // If the configured memstore is offheap, check for two things<a name="line.154"></a>
+<span class="sourceLineNo">155</span> // 1) If the global memstore off-heap size is greater than the configured<a name="line.155"></a>
+<span class="sourceLineNo">156</span> // 'hbase.regionserver.offheap.global.memstore.size'<a name="line.156"></a>
+<span class="sourceLineNo">157</span> // 2) If the global memstore heap size is greater than the configured onheap<a name="line.157"></a>
+<span class="sourceLineNo">158</span> // global memstore limit 'hbase.regionserver.global.memstore.size'.<a name="line.158"></a>
+<span class="sourceLineNo">159</span> // We do this to avoid OOME incase of scenarios where the heap is occupied with<a name="line.159"></a>
+<span class="sourceLineNo">160</span> // lot of onheap references to the cells in memstore<a name="line.160"></a>
+<span class="sourceLineNo">161</span> if (getGlobalMemStoreOffHeapSize() >= globalMemStoreLimit) {<a name="line.161"></a>
+<span class="sourceLineNo">162</span> // Indicates that global memstore size is above the configured<a name="line.162"></a>
+<span class="sourceLineNo">163</span> // 'hbase.regionserver.offheap.global.memstore.size'<a name="line.163"></a>
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+<span class="sourceLineNo">165</span> } else if (getGlobalMemStoreHeapSize() >= this.globalOnHeapMemstoreLimit) {<a name="line.165"></a>
+<span class="sourceLineNo">166</span> // Indicates that the offheap memstore's heap overhead is greater than the<a name="line.166"></a>
+<span class="sourceLineNo">167</span> // configured 'hbase.regionserver.global.memstore.size'.<a name="line.167"></a>
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+<span class="sourceLineNo">169</span> }<a name="line.169"></a>
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+<span class="sourceLineNo">175</span> * Return true if we're above the low watermark<a name="line.175"></a>
+<span class="sourceLineNo">176</span> */<a name="line.176"></a>
+<span class="sourceLineNo">177</span> public FlushType isAboveLowWaterMark() {<a name="line.177"></a>
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+<span class="sourceLineNo">179</span> // global heap overhead is greater than the global memstore lower mark limit<a name="line.179"></a>
+<span class="sourceLineNo">180</span> if (memType == MemoryType.HEAP) {<a name="line.180"></a>
+<span class="sourceLineNo">181</span> if (getGlobalMemStoreHeapSize() >= globalMemStoreLimitLowMark) {<a name="line.181"></a>
+<span class="sourceLineNo">182</span> return FlushType.ABOVE_ONHEAP_LOWER_MARK;<a name="line.182"></a>
+<span class="sourceLineNo">183</span> }<a name="line.183"></a>
+<span class="sourceLineNo">184</span> } else {<a name="line.184"></a>
+<span class="sourceLineNo">185</span> if (getGlobalMemStoreOffHeapSize() >= globalMemStoreLimitLowMark) {<a name="line.185"></a>
+<span class="sourceLineNo">186</span> // Indicates that the offheap memstore's size is greater than the global memstore<a name="line.186"></a>
+<span class="sourceLineNo">187</span> // lower limit<a name="line.187"></a>
+<span class="sourceLineNo">188</span> return FlushType.ABOVE_OFFHEAP_LOWER_MARK;<a name="line.188"></a>
+<span class="sourceLineNo">189</span> } else if (getGlobalMemStoreHeapSize() >= globalOnHeapMemstoreLimitLowMark) {<a name="line.189"></a>
+<span class="sourceLineNo">190</span> // Indicates that the offheap memstore's heap overhead is greater than the global memstore<a name="line.190"></a>
+<span class="sourceLineNo">191</span> // onheap lower limit<a name="line.191"></a>
+<span class="sourceLineNo">192</span> return FlushType.ABOVE_ONHEAP_LOWER_MARK;<a name="line.192"></a>
+<span class="sourceLineNo">193</span> }<a name="line.193"></a>
+<span class="sourceLineNo">194</span> }<a name="line.194"></a>
+<span class="sourceLineNo">195</span> return FlushType.NORMAL;<a name="line.195"></a>
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+<span class="sourceLineNo">197</span><a name="line.197"></a>
+<span class="sourceLineNo">198</span> /**<a name="line.198"></a>
+<span class="sourceLineNo">199</span> * @return the flush pressure of all stores on this regionserver. The value should be greater than<a name="line.199"></a>
+<span class="sourceLineNo">200</span> * or equal to 0.0, and any value greater than 1.0 means we enter the emergency state that<a name="line.200"></a>
+<span class="sourceLineNo">201</span> * global memstore size already exceeds lower limit.<a name="line.201"></a>
+<span class="sourceLineNo">202</span> */<a name="line.202"></a>
+<span class="sourceLineNo">203</span> public double getFlushPressure() {<a name="line.203"></a>
+<span class="sourceLineNo">204</span> if (memType == MemoryType.HEAP) {<a name="line.204"></a>
+<span class="sourceLineNo">205</span> return (getGlobalMemStoreHeapSize()) * 1.0 / globalMemStoreLimitLowMark;<a name="line.205"></a>
+<span class="sourceLineNo">206</span> } else {<a name="line.206"></a>
+<span class="sourceLineNo">207</span> return Math.max(getGlobalMemStoreOffHeapSize() * 1.0 / globalMemStoreLimitLowMark,<a name="line.207"></a>
+<span class="sourceLineNo">208</span> getGlobalMemStoreHeapSize() * 1.0 / globalOnHeapMemstoreLimitLowMark);<a name="line.208"></a>
+<span class="sourceLineNo">209</span> }<a name="line.209"></a>
+<span class="sourceLineNo">210</span> }<a name="line.210"></a>
+<span class="sourceLineNo">211</span>}<a name="line.211"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/1ff05a18/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/SegmentFactory.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/SegmentFactory.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/SegmentFactory.html
index 253454f..65d8ba4 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/SegmentFactory.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/SegmentFactory.html
@@ -68,98 +68,106 @@
<span class="sourceLineNo">060</span> conf,comparator,iterator,memStoreLAB,numOfCells,action,idxType);<a name="line.60"></a>
<span class="sourceLineNo">061</span> }<a name="line.61"></a>
<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span> // create empty immutable segment<a name="line.63"></a>
-<span class="sourceLineNo">064</span> // for initializations<a name="line.64"></a>
-<span class="sourceLineNo">065</span> public ImmutableSegment createImmutableSegment(CellComparator comparator) {<a name="line.65"></a>
-<span class="sourceLineNo">066</span> MutableSegment segment = generateMutableSegment(null, comparator, null);<a name="line.66"></a>
-<span class="sourceLineNo">067</span> return createImmutableSegment(segment);<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> // create not-flat immutable segment from mutable segment<a name="line.70"></a>
-<span class="sourceLineNo">071</span> public ImmutableSegment createImmutableSegment(MutableSegment segment) {<a name="line.71"></a>
-<span class="sourceLineNo">072</span> return new CSLMImmutableSegment(segment);<a name="line.72"></a>
-<span class="sourceLineNo">073</span> }<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span> // create mutable segment<a name="line.75"></a>
-<span class="sourceLineNo">076</span> public MutableSegment createMutableSegment(final Configuration conf, CellComparator comparator) {<a name="line.76"></a>
-<span class="sourceLineNo">077</span> MemStoreLAB memStoreLAB = MemStoreLAB.newInstance(conf);<a name="line.77"></a>
-<span class="sourceLineNo">078</span> return generateMutableSegment(conf, comparator, memStoreLAB);<a name="line.78"></a>
-<span class="sourceLineNo">079</span> }<a name="line.79"></a>
-<span class="sourceLineNo">080</span><a name="line.80"></a>
-<span class="sourceLineNo">081</span> // create new flat immutable segment from merging old immutable segments<a name="line.81"></a>
-<span class="sourceLineNo">082</span> // for merge<a name="line.82"></a>
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-<span class="sourceLineNo">086</span> MemStoreCompactionStrategy.Action action)<a name="line.86"></a>
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+<span class="sourceLineNo">063</span> /**<a name="line.63"></a>
+<span class="sourceLineNo">064</span> * create empty immutable segment for initializations<a name="line.64"></a>
+<span class="sourceLineNo">065</span> * This ImmutableSegment is used as a place holder for snapshot in Memstore.<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * It won't flush later, So it is not necessary to record the initial size<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * for it.<a name="line.67"></a>
+<span class="sourceLineNo">068</span> * @param comparator comparator<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * @return ImmutableSegment<a name="line.69"></a>
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+<span class="sourceLineNo">071</span> public ImmutableSegment createImmutableSegment(CellComparator comparator) {<a name="line.71"></a>
+<span class="sourceLineNo">072</span> MutableSegment segment = generateMutableSegment(null, comparator, null, null);<a name="line.72"></a>
+<span class="sourceLineNo">073</span> return createImmutableSegment(segment, null);<a name="line.73"></a>
+<span class="sourceLineNo">074</span> }<a name="line.74"></a>
+<span class="sourceLineNo">075</span><a name="line.75"></a>
+<span class="sourceLineNo">076</span> // create not-flat immutable segment from mutable segment<a name="line.76"></a>
+<span class="sourceLineNo">077</span> public ImmutableSegment createImmutableSegment(MutableSegment segment,<a name="line.77"></a>
+<span class="sourceLineNo">078</span> MemStoreSizing memstoreSizing) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span> return new CSLMImmutableSegment(segment, memstoreSizing);<a name="line.79"></a>
+<span class="sourceLineNo">080</span> }<a name="line.80"></a>
+<span class="sourceLineNo">081</span><a name="line.81"></a>
+<span class="sourceLineNo">082</span> // create mutable segment<a name="line.82"></a>
+<span class="sourceLineNo">083</span> public MutableSegment createMutableSegment(final Configuration conf,<a name="line.83"></a>
+<span class="sourceLineNo">084</span> CellComparator comparator, MemStoreSizing memstoreSizing) {<a name="line.84"></a>
+<span class="sourceLineNo">085</span> MemStoreLAB memStoreLAB = MemStoreLAB.newInstance(conf);<a name="line.85"></a>
+<span class="sourceLineNo">086</span> return generateMutableSegment(conf, comparator, memStoreLAB, memstoreSizing);<a name="line.86"></a>
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-<span class="sourceLineNo">113</span> return res;<a name="line.113"></a>
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-<span class="sourceLineNo">122</span> ImmutableSegment res = null;<a name="line.122"></a>
-<span class="sourceLineNo">123</span> switch (idxType) {<a name="line.123"></a>
-<span class="sourceLineNo">124</span> case CHUNK_MAP:<a name="line.124"></a>
-<span class="sourceLineNo">125</span> res = new CellChunkImmutableSegment(comparator, iterator, memStoreLAB, numOfCells, action);<a name="line.125"></a>
-<span class="sourceLineNo">126</span> break;<a name="line.126"></a>
-<span class="sourceLineNo">127</span> case CSLM_MAP:<a name="line.127"></a>
-<span class="sourceLineNo">128</span> assert false; // non-flat segment can not be created here<a name="line.128"></a>
-<span class="sourceLineNo">129</span> break;<a name="line.129"></a>
-<span class="sourceLineNo">130</span> case ARRAY_MAP:<a name="line.130"></a>
-<span class="sourceLineNo">131</span> res = new CellArrayImmutableSegment(comparator, iterator, memStoreLAB, numOfCells, action);<a name="line.131"></a>
-<span class="sourceLineNo">132</span> break;<a name="line.132"></a>
-<span class="sourceLineNo">133</span> }<a name="line.133"></a>
-<span class="sourceLineNo">134</span> return res;<a name="line.134"></a>
-<span class="sourceLineNo">135</span> }<a name="line.135"></a>
-<span class="sourceLineNo">136</span><a name="line.136"></a>
-<span class="sourceLineNo">137</span> private MutableSegment generateMutableSegment(final Configuration conf, CellComparator comparator,<a name="line.137"></a>
-<span class="sourceLineNo">138</span> MemStoreLAB memStoreLAB) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span> // TBD use configuration to set type of segment<a name="line.139"></a>
-<span class="sourceLineNo">140</span> CellSet set = new CellSet(comparator);<a name="line.140"></a>
-<span class="sourceLineNo">141</span> return new MutableSegment(set, comparator, memStoreLAB);<a name="line.141"></a>
-<span class="sourceLineNo">142</span> }<a name="line.142"></a>
-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span> private MemStoreLAB getMergedMemStoreLAB(Configuration conf, List<ImmutableSegment> segments) {<a name="line.144"></a>
-<span class="sourceLineNo">145</span> List<MemStoreLAB> mslabs = new ArrayList<>();<a name="line.145"></a>
-<span class="sourceLineNo">146</span> if (!conf.getBoolean(MemStoreLAB.USEMSLAB_KEY, MemStoreLAB.USEMSLAB_DEFAULT)) {<a name="line.146"></a>
-<span class="sourceLineNo">147</span> return null;<a name="line.147"></a>
-<span class="sourceLineNo">148</span> }<a name="line.148"></a>
-<span class="sourceLineNo">149</span> for (ImmutableSegment segment : segments) {<a name="line.149"></a>
-<span class="sourceLineNo">150</span> mslabs.add(segment.getMemStoreLAB());<a name="line.150"></a>
-<span class="sourceLineNo">151</span> }<a name="line.151"></a>
-<span class="sourceLineNo">152</span> return new ImmutableMemStoreLAB(mslabs);<a name="line.152"></a>
-<span class="sourceLineNo">153</span> }<a name="line.153"></a>
-<span class="sourceLineNo">154</span>}<a name="line.154"></a>
+<span class="sourceLineNo">089</span> // create new flat immutable segment from merging old immutable segments<a name="line.89"></a>
+<span class="sourceLineNo">090</span> // for merge<a name="line.90"></a>
+<span class="sourceLineNo">091</span> public ImmutableSegment createImmutableSegmentByMerge(final Configuration conf,<a name="line.91"></a>
+<span class="sourceLineNo">092</span> final CellComparator comparator, MemStoreSegmentsIterator iterator, int numOfCells,<a name="line.92"></a>
+<span class="sourceLineNo">093</span> List<ImmutableSegment> segments, CompactingMemStore.IndexType idxType,<a name="line.93"></a>
+<span class="sourceLineNo">094</span> MemStoreCompactionStrategy.Action action)<a name="line.94"></a>
+<span class="sourceLineNo">095</span> throws IOException {<a name="line.95"></a>
+<span class="sourceLineNo">096</span><a name="line.96"></a>
+<span class="sourceLineNo">097</span> MemStoreLAB memStoreLAB = getMergedMemStoreLAB(conf, segments);<a name="line.97"></a>
+<span class="sourceLineNo">098</span> return<a name="line.98"></a>
+<span class="sourceLineNo">099</span> createImmutableSegment(<a name="line.99"></a>
+<span class="sourceLineNo">100</span> conf,comparator,iterator,memStoreLAB,numOfCells,action,idxType);<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> // create flat immutable segment from non-flat immutable segment<a name="line.104"></a>
+<span class="sourceLineNo">105</span> // for flattening<a name="line.105"></a>
+<span class="sourceLineNo">106</span> public ImmutableSegment createImmutableSegmentByFlattening(<a name="line.106"></a>
+<span class="sourceLineNo">107</span> CSLMImmutableSegment segment, CompactingMemStore.IndexType idxType,<a name="line.107"></a>
+<span class="sourceLineNo">108</span> MemStoreSizing memstoreSizing, MemStoreCompactionStrategy.Action action) {<a name="line.108"></a>
+<span class="sourceLineNo">109</span> ImmutableSegment res = null;<a name="line.109"></a>
+<span class="sourceLineNo">110</span> switch (idxType) {<a name="line.110"></a>
+<span class="sourceLineNo">111</span> case CHUNK_MAP:<a name="line.111"></a>
+<span class="sourceLineNo">112</span> res = new CellChunkImmutableSegment(segment, memstoreSizing, action);<a name="line.112"></a>
+<span class="sourceLineNo">113</span> break;<a name="line.113"></a>
+<span class="sourceLineNo">114</span> case CSLM_MAP:<a name="line.114"></a>
+<span class="sourceLineNo">115</span> assert false; // non-flat segment can not be the result of flattening<a name="line.115"></a>
+<span class="sourceLineNo">116</span> break;<a name="line.116"></a>
+<span class="sourceLineNo">117</span> case ARRAY_MAP:<a name="line.117"></a>
+<span class="sourceLineNo">118</span> res = new CellArrayImmutableSegment(segment, memstoreSizing, action);<a name="line.118"></a>
+<span class="sourceLineNo">119</span> break;<a name="line.119"></a>
+<span class="sourceLineNo">120</span> }<a name="line.120"></a>
+<span class="sourceLineNo">121</span> return res;<a name="line.121"></a>
+<span class="sourceLineNo">122</span> }<a name="line.122"></a>
+<span class="sourceLineNo">123</span><a name="line.123"></a>
+<span class="sourceLineNo">124</span><a name="line.124"></a>
+<span class="sourceLineNo">125</span> //****** private methods to instantiate concrete store segments **********//<a name="line.125"></a>
+<span class="sourceLineNo">126</span> private ImmutableSegment createImmutableSegment(final Configuration conf, final CellComparator comparator,<a name="line.126"></a>
+<span class="sourceLineNo">127</span> MemStoreSegmentsIterator iterator, MemStoreLAB memStoreLAB, int numOfCells,<a name="line.127"></a>
+<span class="sourceLineNo">128</span> MemStoreCompactionStrategy.Action action, CompactingMemStore.IndexType idxType) {<a name="line.128"></a>
+<span class="sourceLineNo">129</span><a name="line.129"></a>
+<span class="sourceLineNo">130</span> ImmutableSegment res = null;<a name="line.130"></a>
+<span class="sourceLineNo">131</span> switch (idxType) {<a name="line.131"></a>
+<span class="sourceLineNo">132</span> case CHUNK_MAP:<a name="line.132"></a>
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+<span class="sourceLineNo">134</span> break;<a name="line.134"></a>
+<span class="sourceLineNo">135</span> case CSLM_MAP:<a name="line.135"></a>
+<span class="sourceLineNo">136</span> assert false; // non-flat segment can not be created here<a name="line.136"></a>
+<span class="sourceLineNo">137</span> break;<a name="line.137"></a>
+<span class="sourceLineNo">138</span> case ARRAY_MAP:<a name="line.138"></a>
+<span class="sourceLineNo">139</span> res = new CellArrayImmutableSegment(comparator, iterator, memStoreLAB, numOfCells, action);<a name="line.139"></a>
+<span class="sourceLineNo">140</span> break;<a name="line.140"></a>
+<span class="sourceLineNo">141</span> }<a name="line.141"></a>
+<span class="sourceLineNo">142</span> return res;<a name="line.142"></a>
+<span class="sourceLineNo">143</span> }<a name="line.143"></a>
+<span class="sourceLineNo">144</span><a name="line.144"></a>
+<span class="sourceLineNo">145</span> private MutableSegment generateMutableSegment(final Configuration conf, CellComparator comparator,<a name="line.145"></a>
+<span class="sourceLineNo">146</span> MemStoreLAB memStoreLAB, MemStoreSizing memstoreSizing) {<a name="line.146"></a>
+<span class="sourceLineNo">147</span> // TBD use configuration to set type of segment<a name="line.147"></a>
+<span class="sourceLineNo">148</span> CellSet set = new CellSet(comparator);<a name="line.148"></a>
+<span class="sourceLineNo">149</span> return new MutableSegment(set, comparator, memStoreLAB, memstoreSizing);<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> private MemStoreLAB getMergedMemStoreLAB(Configuration conf, List<ImmutableSegment> segments) {<a name="line.152"></a>
+<span class="sourceLineNo">153</span> List<MemStoreLAB> mslabs = new ArrayList<>();<a name="line.153"></a>
+<span class="sourceLineNo">154</span> if (!conf.getBoolean(MemStoreLAB.USEMSLAB_KEY, MemStoreLAB.USEMSLAB_DEFAULT)) {<a name="line.154"></a>
+<span class="sourceLineNo">155</span> return null;<a name="line.155"></a>
+<span class="sourceLineNo">156</span> }<a name="line.156"></a>
+<span class="sourceLineNo">157</span> for (ImmutableSegment segment : segments) {<a name="line.157"></a>
+<span class="sourceLineNo">158</span> mslabs.add(segment.getMemStoreLAB());<a name="line.158"></a>
+<span class="sourceLineNo">159</span> }<a name="line.159"></a>
+<span class="sourceLineNo">160</span> return new ImmutableMemStoreLAB(mslabs);<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>