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Posted to commits@hbase.apache.org by mi...@apache.org on 2016/03/31 18:18:24 UTC

[22/51] [partial] hbase-site git commit: Published site at d6fd85945130516ba10fe4854ce080e5a2329983.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.HFileBlockTranscoder.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.HFileBlockTranscoder.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.HFileBlockTranscoder.html
index c1acfe2..28b6c6b 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.HFileBlockTranscoder.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.HFileBlockTranscoder.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.html
index c1acfe2..28b6c6b 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/MemcachedBlockCache.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.BucketEntry.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.BucketEntryGroup.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.BucketEntryGroup.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.BucketEntryGroup.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.RAMQueueEntry.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.RAMQueueEntry.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.RAMQueueEntry.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.StatisticsThread.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.WriterThread.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/bucket/BucketCache.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f8d69509/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/ConstantSizeRegionSplitPolicy.html
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+<span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HConstants;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.28"></a>
+<span class="sourceLineNo">029</span><a name="line.29"></a>
+<span class="sourceLineNo">030</span>/**<a name="line.30"></a>
+<span class="sourceLineNo">031</span> * A {@link RegionSplitPolicy} implementation which splits a region<a name="line.31"></a>
+<span class="sourceLineNo">032</span> * as soon as any of its store files exceeds a maximum configurable<a name="line.32"></a>
+<span class="sourceLineNo">033</span> * size.<a name="line.33"></a>
+<span class="sourceLineNo">034</span> * &lt;p&gt;<a name="line.34"></a>
+<span class="sourceLineNo">035</span> * This is the default split policy. From 0.94.0 on the default split policy has<a name="line.35"></a>
+<span class="sourceLineNo">036</span> * changed to {@link IncreasingToUpperBoundRegionSplitPolicy}<a name="line.36"></a>
+<span class="sourceLineNo">037</span> * &lt;/p&gt;<a name="line.37"></a>
+<span class="sourceLineNo">038</span> */<a name="line.38"></a>
+<span class="sourceLineNo">039</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.39"></a>
+<span class="sourceLineNo">040</span>public class ConstantSizeRegionSplitPolicy extends RegionSplitPolicy {<a name="line.40"></a>
+<span class="sourceLineNo">041</span>  private static final Random RANDOM = new Random();<a name="line.41"></a>
+<span class="sourceLineNo">042</span>  private static final double EPSILON = 1E-6;<a name="line.42"></a>
+<span class="sourceLineNo">043</span><a name="line.43"></a>
+<span class="sourceLineNo">044</span>  private long desiredMaxFileSize;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>  private double jitterRate;<a name="line.45"></a>
+<span class="sourceLineNo">046</span><a name="line.46"></a>
+<span class="sourceLineNo">047</span>  @Override<a name="line.47"></a>
+<span class="sourceLineNo">048</span>  protected void configureForRegion(HRegion region) {<a name="line.48"></a>
+<span class="sourceLineNo">049</span>    super.configureForRegion(region);<a name="line.49"></a>
+<span class="sourceLineNo">050</span>    Configuration conf = getConf();<a name="line.50"></a>
+<span class="sourceLineNo">051</span>    HTableDescriptor desc = region.getTableDesc();<a name="line.51"></a>
+<span class="sourceLineNo">052</span>    if (desc != null) {<a name="line.52"></a>
+<span class="sourceLineNo">053</span>      this.desiredMaxFileSize = desc.getMaxFileSize();<a name="line.53"></a>
 <span class="sourceLineNo">054</span>    }<a name="line.54"></a>
-<span class="sourceLineNo">055</span>    double jitter = conf.getDouble("hbase.hregion.max.filesize.jitter", 0.25D);<a name="line.55"></a>
-<span class="sourceLineNo">056</span>    this.desiredMaxFileSize += (long)(desiredMaxFileSize * (RANDOM.nextFloat() - 0.5D) * jitter);<a name="line.56"></a>
-<span class="sourceLineNo">057</span>  }<a name="line.57"></a>
-<span class="sourceLineNo">058</span><a name="line.58"></a>
-<span class="sourceLineNo">059</span>  @Override<a name="line.59"></a>
-<span class="sourceLineNo">060</span>  protected boolean shouldSplit() {<a name="line.60"></a>
-<span class="sourceLineNo">061</span>    boolean force = region.shouldForceSplit();<a name="line.61"></a>
-<span class="sourceLineNo">062</span>    boolean foundABigStore = false;<a name="line.62"></a>
-<span class="sourceLineNo">063</span><a name="line.63"></a>
-<span class="sourceLineNo">064</span>    for (Store store : region.getStores()) {<a name="line.64"></a>
-<span class="sourceLineNo">065</span>      // If any of the stores are unable to split (eg they contain reference files)<a name="line.65"></a>
-<span class="sourceLineNo">066</span>      // then don't split<a name="line.66"></a>
-<span class="sourceLineNo">067</span>      if ((!store.canSplit())) {<a name="line.67"></a>
-<span class="sourceLineNo">068</span>        return false;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>      }<a name="line.69"></a>
-<span class="sourceLineNo">070</span><a name="line.70"></a>
-<span class="sourceLineNo">071</span>      // Mark if any store is big enough<a name="line.71"></a>
-<span class="sourceLineNo">072</span>      if (store.getSize() &gt; desiredMaxFileSize) {<a name="line.72"></a>
-<span class="sourceLineNo">073</span>        foundABigStore = true;<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><a name="line.76"></a>
-<span class="sourceLineNo">077</span>    return foundABigStore || force;<a name="line.77"></a>
-<span class="sourceLineNo">078</span>  }<a name="line.78"></a>
-<span class="sourceLineNo">079</span><a name="line.79"></a>
-<span class="sourceLineNo">080</span>  long getDesiredMaxFileSize() {<a name="line.80"></a>
-<span class="sourceLineNo">081</span>    return desiredMaxFileSize;<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">055</span>    if (this.desiredMaxFileSize &lt;= 0) {<a name="line.55"></a>
+<span class="sourceLineNo">056</span>      this.desiredMaxFileSize = conf.getLong(HConstants.HREGION_MAX_FILESIZE,<a name="line.56"></a>
+<span class="sourceLineNo">057</span>        HConstants.DEFAULT_MAX_FILE_SIZE);<a name="line.57"></a>
+<span class="sourceLineNo">058</span>    }<a name="line.58"></a>
+<span class="sourceLineNo">059</span>    double jitter = conf.getDouble("hbase.hregion.max.filesize.jitter", 0.25D);<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    this.jitterRate = (RANDOM.nextFloat() - 0.5D) * jitter;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>    long jitterValue = (long) (this.desiredMaxFileSize * this.jitterRate);<a name="line.61"></a>
+<span class="sourceLineNo">062</span>    // make sure the long value won't overflow with jitter<a name="line.62"></a>
+<span class="sourceLineNo">063</span>    if (this.jitterRate &gt; EPSILON &amp;&amp; jitterValue &gt; (Long.MAX_VALUE - this.desiredMaxFileSize)) {<a name="line.63"></a>
+<span class="sourceLineNo">064</span>      this.desiredMaxFileSize = Long.MAX_VALUE;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>    } else {<a name="line.65"></a>
+<span class="sourceLineNo">066</span>      this.desiredMaxFileSize += jitterValue;<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>  @Override<a name="line.70"></a>
+<span class="sourceLineNo">071</span>  protected boolean shouldSplit() {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>    boolean force = region.shouldForceSplit();<a name="line.72"></a>
+<span class="sourceLineNo">073</span>    boolean foundABigStore = false;<a name="line.73"></a>
+<span class="sourceLineNo">074</span><a name="line.74"></a>
+<span class="sourceLineNo">075</span>    for (Store store : region.getStores()) {<a name="line.75"></a>
+<span class="sourceLineNo">076</span>      // If any of the stores are unable to split (eg they contain reference files)<a name="line.76"></a>
+<span class="sourceLineNo">077</span>      // then don't split<a name="line.77"></a>
+<span class="sourceLineNo">078</span>      if ((!store.canSplit())) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span>        return false;<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>      // Mark if any store is big enough<a name="line.82"></a>
+<span class="sourceLineNo">083</span>      if (store.getSize() &gt; desiredMaxFileSize) {<a name="line.83"></a>
+<span class="sourceLineNo">084</span>        foundABigStore = true;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>      }<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>    return foundABigStore || force;<a name="line.88"></a>
+<span class="sourceLineNo">089</span>  }<a name="line.89"></a>
+<span class="sourceLineNo">090</span><a name="line.90"></a>
+<span class="sourceLineNo">091</span>  long getDesiredMaxFileSize() {<a name="line.91"></a>
+<span class="sourceLineNo">092</span>    return desiredMaxFileSize;<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  }<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>  @VisibleForTesting<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  public boolean positiveJitterRate() {<a name="line.96"></a>
+<span class="sourceLineNo">097</span>    return this.jitterRate &gt; EPSILON;<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  }<a name="line.98"></a>
+<span class="sourceLineNo">099</span>}<a name="line.99"></a>