http://git-wip-us.apache.org/repos/asf/hbase-site/blob/476c54ed/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMaster.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMaster.html 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMaster.html
index a9223ea..e159f19 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMaster.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMaster.html
@@ -164,7 +164,28 @@
 <span class="sourceLineNo">156</span>      }<a name="line.156"></a>
 <span class="sourceLineNo">157</span>    };<a name="line.157"></a>
 <span class="sourceLineNo">158</span>  }<a name="line.158"></a>
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+<span class="sourceLineNo">159</span><a name="line.159"></a>
+<span class="sourceLineNo">160</span>  /**<a name="line.160"></a>
+<span class="sourceLineNo">161</span>   * Sets the execution time of a period 
of the {@code SnapshotQuotaObserverChore}.<a name="line.161"></a>
+<span class="sourceLineNo">162</span>   */<a name="line.162"></a>
+<span class="sourceLineNo">163</span>  public void 
incrementSnapshotObserverTime(final long executionTime) {<a name="line.163"></a>
+<span class="sourceLineNo">164</span>    
masterQuotaSource.incrementSnapshotObserverChoreTime(executionTime);<a 
name="line.164"></a>
+<span class="sourceLineNo">165</span>  }<a name="line.165"></a>
+<span class="sourceLineNo">166</span><a name="line.166"></a>
+<span class="sourceLineNo">167</span>  /**<a name="line.167"></a>
+<span class="sourceLineNo">168</span>   * Sets the execution time to compute 
the size of a single snapshot.<a name="line.168"></a>
+<span class="sourceLineNo">169</span>   */<a name="line.169"></a>
+<span class="sourceLineNo">170</span>  public void 
incrementSnapshotSizeComputationTime(final long executionTime) {<a 
name="line.170"></a>
+<span class="sourceLineNo">171</span>    
masterQuotaSource.incrementSnapshotObserverSnapshotComputationTime(executionTime);<a
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+<span class="sourceLineNo">172</span>  }<a name="line.172"></a>
+<span class="sourceLineNo">173</span><a name="line.173"></a>
+<span class="sourceLineNo">174</span>  /**<a name="line.174"></a>
+<span class="sourceLineNo">175</span>   * Sets the execution time to fetch the 
mapping of snapshots to originating table.<a name="line.175"></a>
+<span class="sourceLineNo">176</span>   */<a name="line.176"></a>
+<span class="sourceLineNo">177</span>  public void 
incrementSnapshotFetchTime(long executionTime) {<a name="line.177"></a>
+<span class="sourceLineNo">178</span>    
masterQuotaSource.incrementSnapshotObserverSnapshotFetchTime(executionTime);<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>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/476c54ed/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSource.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSource.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSource.html
index 2d63c04..54c92d7 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSource.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSource.html
@@ -47,51 +47,78 @@
 <span class="sourceLineNo">039</span>  String QUOTA_OBSERVER_CHORE_TIME_NAME = 
"quotaObserverChoreTime";<a name="line.39"></a>
 <span class="sourceLineNo">040</span>  String QUOTA_OBSERVER_CHORE_TIME_DESC 
=<a name="line.40"></a>
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for the QuotaObserverChore";<a name="line.41"></a>
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"tableSpaceQuotaOverview";<a name="line.42"></a>
-<span class="sourceLineNo">043</span>  String TABLE_QUOTA_USAGE_DESC = "A JSON 
summary of the usage of all tables with space quotas";<a name="line.43"></a>
-<span class="sourceLineNo">044</span>  String NS_QUOTA_USAGE_NAME = 
"namespaceSpaceQuotaOverview";<a name="line.44"></a>
-<span class="sourceLineNo">045</span>  String NS_QUOTA_USAGE_DESC = "A JSON 
summary of the usage of all namespaces with space quotas";<a name="line.45"></a>
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-<span class="sourceLineNo">047</span>  /**<a name="line.47"></a>
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number of space quotas defined in the system.<a name="line.48"></a>
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space quotas defined<a name="line.50"></a>
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numSpaceQuotas);<a name="line.52"></a>
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number of tables the master has computed to be in<a name="line.55"></a>
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number of tables violating a space quota<a name="line.58"></a>
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number of namespaces the master has computed to be in<a name="line.63"></a>
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number of namespaces violating a space quota<a name="line.66"></a>
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number of region size reports the master is currently<a name="line.71"></a>
-<span class="sourceLineNo">072</span>   * retaining in memory.<a 
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-<span class="sourceLineNo">073</span>   *<a name="line.73"></a>
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The number of region size reports the master is holding in<a name="line.74"></a>
-<span class="sourceLineNo">075</span>   *    memory<a name="line.75"></a>
+<span class="sourceLineNo">042</span>  String 
SNAPSHOT_OBSERVER_CHORE_TIME_NAME = "snapshotQuotaObserverChoreTime";<a 
name="line.42"></a>
+<span class="sourceLineNo">043</span>  String 
SNAPSHOT_OBSERVER_CHORE_TIME_DESC =<a name="line.43"></a>
+<span class="sourceLineNo">044</span>      "Histogram for the time in millis 
for the SnapshotQuotaObserverChore";<a name="line.44"></a>
+<span class="sourceLineNo">045</span>  String 
SNAPSHOT_OBSERVER_SIZE_COMPUTATION_TIME_NAME = 
"snapshotObserverSizeComputationTime";<a name="line.45"></a>
+<span class="sourceLineNo">046</span>  String 
SNAPSHOT_OBSERVER_SIZE_COMPUTATION_TIME_DESC =<a name="line.46"></a>
+<span class="sourceLineNo">047</span>      "Histogram for the time in millis 
to compute the size of each snapshot";<a name="line.47"></a>
+<span class="sourceLineNo">048</span>  String 
SNAPSHOT_OBSERVER_FETCH_TIME_NAME = "snapshotObserverSnapshotFetchTime";<a 
name="line.48"></a>
+<span class="sourceLineNo">049</span>  String 
SNAPSHOT_OBSERVER_FETCH_TIME_DESC =<a name="line.49"></a>
+<span class="sourceLineNo">050</span>      "Histogram for the time in millis 
to fetch all snapshots from HBase";<a name="line.50"></a>
+<span class="sourceLineNo">051</span>  String TABLE_QUOTA_USAGE_NAME = 
"tableSpaceQuotaOverview";<a name="line.51"></a>
+<span class="sourceLineNo">052</span>  String TABLE_QUOTA_USAGE_DESC = "A JSON 
summary of the usage of all tables with space quotas";<a name="line.52"></a>
+<span class="sourceLineNo">053</span>  String NS_QUOTA_USAGE_NAME = 
"namespaceSpaceQuotaOverview";<a name="line.53"></a>
+<span class="sourceLineNo">054</span>  String NS_QUOTA_USAGE_DESC = "A JSON 
summary of the usage of all namespaces with space quotas";<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span>  /**<a name="line.56"></a>
+<span class="sourceLineNo">057</span>   * Updates the metric tracking the 
number of space quotas defined in the system.<a name="line.57"></a>
+<span class="sourceLineNo">058</span>   *<a name="line.58"></a>
+<span class="sourceLineNo">059</span>   * @param numSpaceQuotas The number of 
space quotas defined<a name="line.59"></a>
+<span class="sourceLineNo">060</span>   */<a name="line.60"></a>
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numSpaceQuotas);<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  /**<a name="line.63"></a>
+<span class="sourceLineNo">064</span>   * Updates the metric tracking the 
number of tables the master has computed to be in<a name="line.64"></a>
+<span class="sourceLineNo">065</span>   * violation of their space quota.<a 
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+<span class="sourceLineNo">066</span>   *<a name="line.66"></a>
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number of tables violating a space quota<a name="line.67"></a>
+<span class="sourceLineNo">068</span>   */<a name="line.68"></a>
+<span class="sourceLineNo">069</span>  void 
updateNumTablesInSpaceQuotaViolation(long numTablesInViolation);<a 
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+<span class="sourceLineNo">071</span>  /**<a name="line.71"></a>
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number of namespaces the master has computed to be in<a name="line.72"></a>
+<span class="sourceLineNo">073</span>   * violation of their space quota.<a 
name="line.73"></a>
+<span class="sourceLineNo">074</span>   *<a name="line.74"></a>
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number of namespaces violating a space quota<a name="line.75"></a>
 <span class="sourceLineNo">076</span>   */<a name="line.76"></a>
-<span class="sourceLineNo">077</span>  void 
updateNumCurrentSpaceQuotaRegionSizeReports(long 
numCurrentRegionSizeReports);<a name="line.77"></a>
+<span class="sourceLineNo">077</span>  void 
updateNumNamespacesInSpaceQuotaViolation(long numNamespacesInViolation);<a 
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 <span class="sourceLineNo">078</span><a name="line.78"></a>
 <span class="sourceLineNo">079</span>  /**<a name="line.79"></a>
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amount of time taken by the {@code QuotaObserverChore}<a name="line.80"></a>
-<span class="sourceLineNo">081</span>   * which runs periodically.<a 
name="line.81"></a>
+<span class="sourceLineNo">080</span>   * Updates the metric tracking the 
number of region size reports the master is currently<a name="line.80"></a>
+<span class="sourceLineNo">081</span>   * retaining in memory.<a 
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 <span class="sourceLineNo">082</span>   *<a name="line.82"></a>
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the chore in milliseconds<a name="line.83"></a>
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incrementSpaceQuotaObserverChoreTime(long time);<a name="line.85"></a>
-<span class="sourceLineNo">086</span>}<a name="line.86"></a>
+<span class="sourceLineNo">083</span>   * @param numCurrentRegionSizeReports 
The number of region size reports the master is holding in<a name="line.83"></a>
+<span class="sourceLineNo">084</span>   *    memory<a name="line.84"></a>
+<span class="sourceLineNo">085</span>   */<a name="line.85"></a>
+<span class="sourceLineNo">086</span>  void 
updateNumCurrentSpaceQuotaRegionSizeReports(long 
numCurrentRegionSizeReports);<a name="line.86"></a>
+<span class="sourceLineNo">087</span><a name="line.87"></a>
+<span class="sourceLineNo">088</span>  /**<a name="line.88"></a>
+<span class="sourceLineNo">089</span>   * Updates the metric tracking the 
amount of time taken by the {@code QuotaObserverChore}<a name="line.89"></a>
+<span class="sourceLineNo">090</span>   * which runs periodically.<a 
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+<span class="sourceLineNo">091</span>   *<a name="line.91"></a>
+<span class="sourceLineNo">092</span>   * @param time The execution time of 
the chore in milliseconds<a name="line.92"></a>
+<span class="sourceLineNo">093</span>   */<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  void 
incrementSpaceQuotaObserverChoreTime(long time);<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>   * Updates the metric tracking the 
amount of time taken by the {@code SnapshotQuotaObserverChore}<a 
name="line.97"></a>
+<span class="sourceLineNo">098</span>   * which runs periodically.<a 
name="line.98"></a>
+<span class="sourceLineNo">099</span>   */<a name="line.99"></a>
+<span class="sourceLineNo">100</span>  void 
incrementSnapshotObserverChoreTime(long time);<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>   * Updates the metric tracking the 
amount of time taken by the {@code SnapshotQuotaObserverChore}<a 
name="line.103"></a>
+<span class="sourceLineNo">104</span>   * to compute the size of one snapshot, 
relative to the files referenced by the originating table.<a 
name="line.104"></a>
+<span class="sourceLineNo">105</span>   */<a name="line.105"></a>
+<span class="sourceLineNo">106</span>  void 
incrementSnapshotObserverSnapshotComputationTime(long time);<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>   * Updates the metric tracking the 
amount of time taken by the {@code SnapshotQuotaObserverChore}<a 
name="line.109"></a>
+<span class="sourceLineNo">110</span>   * to fetch all snapshots.<a 
name="line.110"></a>
+<span class="sourceLineNo">111</span>   */<a name="line.111"></a>
+<span class="sourceLineNo">112</span>  void 
incrementSnapshotObserverSnapshotFetchTime(long time);<a name="line.112"></a>
+<span class="sourceLineNo">113</span>}<a name="line.113"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/476c54ed/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSourceImpl.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSourceImpl.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSourceImpl.html
index 40d919b..c25efce 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSourceImpl.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/MetricsMasterQuotaSourceImpl.html
@@ -47,98 +47,123 @@
 <span class="sourceLineNo">039</span>  private final MutableGaugeLong 
namespacesViolatingQuotasGauge;<a name="line.39"></a>
 <span class="sourceLineNo">040</span>  private final MutableGaugeLong 
regionSpaceReportsGauge;<a name="line.40"></a>
 <span class="sourceLineNo">041</span>  private final MetricHistogram 
quotaObserverTimeHisto;<a name="line.41"></a>
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-<span class="sourceLineNo">043</span>  public 
MetricsMasterQuotaSourceImpl(MetricsMasterWrapper wrapper) {<a 
name="line.43"></a>
-<span class="sourceLineNo">044</span>    this(METRICS_NAME, 
METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT, wrapper);<a 
name="line.44"></a>
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-<span class="sourceLineNo">046</span><a name="line.46"></a>
-<span class="sourceLineNo">047</span>  public MetricsMasterQuotaSourceImpl(<a 
name="line.47"></a>
-<span class="sourceLineNo">048</span>      String metricsName, String 
metricsDescription, String metricsContext,<a name="line.48"></a>
-<span class="sourceLineNo">049</span>      String metricsJmxContext, 
MetricsMasterWrapper wrapper) {<a name="line.49"></a>
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metricsDescription, metricsContext, metricsJmxContext);<a name="line.50"></a>
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name="line.51"></a>
-<span class="sourceLineNo">052</span><a name="line.52"></a>
-<span class="sourceLineNo">053</span>    spaceQuotasGauge = 
getMetricsRegistry().newGauge(<a name="line.53"></a>
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NUM_SPACE_QUOTAS_DESC, 0L);<a name="line.54"></a>
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getMetricsRegistry().newGauge(<a name="line.55"></a>
-<span class="sourceLineNo">056</span>        NUM_TABLES_QUOTA_VIOLATIONS_NAME, 
NUM_TABLES_QUOTA_VIOLATIONS_DESC, 0L);<a name="line.56"></a>
-<span class="sourceLineNo">057</span>    namespacesViolatingQuotasGauge = 
getMetricsRegistry().newGauge(<a name="line.57"></a>
-<span class="sourceLineNo">058</span>        NUM_NS_QUOTA_VIOLATIONS_NAME, 
NUM_NS_QUOTA_VIOLATIONS_DESC, 0L);<a name="line.58"></a>
-<span class="sourceLineNo">059</span>    regionSpaceReportsGauge = 
getMetricsRegistry().newGauge(<a name="line.59"></a>
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NUM_REGION_SIZE_REPORTS_DESC, 0L);<a name="line.60"></a>
-<span class="sourceLineNo">061</span><a name="line.61"></a>
-<span class="sourceLineNo">062</span>    quotaObserverTimeHisto = 
getMetricsRegistry().newTimeHistogram(<a name="line.62"></a>
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QUOTA_OBSERVER_CHORE_TIME_DESC);<a name="line.63"></a>
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spaceQuotasGauge.set(numSpaceQuotas);<a name="line.68"></a>
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updateNumTablesInSpaceQuotaViolation(long numTablesInViolation) {<a 
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tablesViolatingQuotasGauge.set(numTablesInViolation);<a name="line.73"></a>
+<span class="sourceLineNo">042</span>  private final MetricHistogram 
snapshotObserverTimeHisto;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>  private final MetricHistogram 
snapshotObserverSizeComputationTimeHisto;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>  private final MetricHistogram 
snapshotObserverSnapshotFetchTimeHisto;<a name="line.44"></a>
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+<span class="sourceLineNo">046</span>  public 
MetricsMasterQuotaSourceImpl(MetricsMasterWrapper wrapper) {<a 
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+<span class="sourceLineNo">047</span>    this(METRICS_NAME, 
METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT, wrapper);<a 
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+<span class="sourceLineNo">048</span>  }<a name="line.48"></a>
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+<span class="sourceLineNo">050</span>  public MetricsMasterQuotaSourceImpl(<a 
name="line.50"></a>
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metricsDescription, String metricsContext,<a name="line.51"></a>
+<span class="sourceLineNo">052</span>      String metricsJmxContext, 
MetricsMasterWrapper wrapper) {<a name="line.52"></a>
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metricsDescription, metricsContext, metricsJmxContext);<a name="line.53"></a>
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+<span class="sourceLineNo">056</span>    spaceQuotasGauge = 
getMetricsRegistry().newGauge(<a name="line.56"></a>
+<span class="sourceLineNo">057</span>        NUM_SPACE_QUOTAS_NAME, 
NUM_SPACE_QUOTAS_DESC, 0L);<a name="line.57"></a>
+<span class="sourceLineNo">058</span>    tablesViolatingQuotasGauge = 
getMetricsRegistry().newGauge(<a name="line.58"></a>
+<span class="sourceLineNo">059</span>        NUM_TABLES_QUOTA_VIOLATIONS_NAME, 
NUM_TABLES_QUOTA_VIOLATIONS_DESC, 0L);<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    namespacesViolatingQuotasGauge = 
getMetricsRegistry().newGauge(<a name="line.60"></a>
+<span class="sourceLineNo">061</span>        NUM_NS_QUOTA_VIOLATIONS_NAME, 
NUM_NS_QUOTA_VIOLATIONS_DESC, 0L);<a name="line.61"></a>
+<span class="sourceLineNo">062</span>    regionSpaceReportsGauge = 
getMetricsRegistry().newGauge(<a name="line.62"></a>
+<span class="sourceLineNo">063</span>        NUM_REGION_SIZE_REPORTS_NAME, 
NUM_REGION_SIZE_REPORTS_DESC, 0L);<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
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snapshotObserverSizeComputationTimeHisto = 
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SNAPSHOT_OBSERVER_SIZE_COMPUTATION_TIME_DESC);<a name="line.71"></a>
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snapshotObserverSnapshotFetchTimeHisto = 
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namespacesViolatingQuotasGauge.set(numNamespacesInViolation);<a 
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numSpaceQuotas) {<a name="line.77"></a>
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spaceQuotasGauge.set(numSpaceQuotas);<a name="line.78"></a>
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{<a name="line.82"></a>
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regionSpaceReportsGauge.set(numCurrentRegionSizeReports);<a name="line.83"></a>
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updateNumTablesInSpaceQuotaViolation(long numTablesInViolation) {<a 
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tablesViolatingQuotasGauge.set(numTablesInViolation);<a name="line.83"></a>
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 <span class="sourceLineNo">086</span>  @Override<a name="line.86"></a>
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incrementSpaceQuotaObserverChoreTime(long time) {<a name="line.87"></a>
-<span class="sourceLineNo">088</span>    quotaObserverTimeHisto.add(time);<a 
name="line.88"></a>
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updateNumNamespacesInSpaceQuotaViolation(long numNamespacesInViolation) {<a 
name="line.87"></a>
+<span class="sourceLineNo">088</span>    
namespacesViolatingQuotasGauge.set(numNamespacesInViolation);<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>  @Override<a name="line.91"></a>
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metricsCollector, boolean all) {<a name="line.92"></a>
-<span class="sourceLineNo">093</span>    MetricsRecordBuilder record = 
metricsCollector.addRecord(metricsRegistry.info());<a name="line.93"></a>
-<span class="sourceLineNo">094</span>    if (wrapper != null) {<a 
name="line.94"></a>
-<span class="sourceLineNo">095</span>      // Summarize the tables<a 
name="line.95"></a>
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Map&lt;String,Entry&lt;Long,Long&gt;&gt; tableUsages = 
wrapper.getTableSpaceUtilization();<a name="line.96"></a>
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name="line.97"></a>
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!tableUsages.isEmpty()) {<a name="line.98"></a>
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generateJsonQuotaSummary(tableUsages.entrySet(), "table");<a name="line.99"></a>
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record.tag(Interns.info(TABLE_QUOTA_USAGE_NAME, TABLE_QUOTA_USAGE_DESC), 
tableSummary);<a name="line.101"></a>
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-<span class="sourceLineNo">103</span>      // Summarize the namespaces<a 
name="line.103"></a>
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name="line.104"></a>
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Map&lt;String,Entry&lt;Long,Long&gt;&gt; namespaceUsages = 
wrapper.getNamespaceSpaceUtilization();<a name="line.105"></a>
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&amp;&amp; !namespaceUsages.isEmpty()) {<a name="line.106"></a>
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generateJsonQuotaSummary(namespaceUsages.entrySet(), "namespace");<a 
name="line.107"></a>
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-<span class="sourceLineNo">109</span>      
record.tag(Interns.info(NS_QUOTA_USAGE_NAME, NS_QUOTA_USAGE_DESC), 
nsSummary);<a name="line.109"></a>
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all);<a name="line.111"></a>
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many targets (table or namespace) into JSON.<a name="line.115"></a>
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generateJsonQuotaSummary(<a name="line.117"></a>
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Iterable&lt;Entry&lt;String,Entry&lt;Long,Long&gt;&gt;&gt; data, String target) 
{<a name="line.118"></a>
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StringBuilder();<a name="line.119"></a>
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(Entry&lt;String,Entry&lt;Long,Long&gt;&gt; tableUsage : data) {<a 
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tableUsage.getKey();<a name="line.121"></a>
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tableUsage.getValue().getKey();<a name="line.122"></a>
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tableUsage.getValue().getValue();<a name="line.123"></a>
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name="line.125"></a>
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sb.append("{").append(target).append("=").append(tableName).append(", 
usage=").append(usage)<a name="line.127"></a>
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limit=").append(limit).append("}");<a name="line.128"></a>
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updateNumCurrentSpaceQuotaRegionSizeReports(long numCurrentRegionSizeReports) 
{<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    
regionSpaceReportsGauge.set(numCurrentRegionSizeReports);<a name="line.93"></a>
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+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span>  @Override<a name="line.96"></a>
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incrementSpaceQuotaObserverChoreTime(long time) {<a name="line.97"></a>
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name="line.98"></a>
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incrementSnapshotObserverChoreTime(long time) {<a name="line.102"></a>
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snapshotObserverTimeHisto.add(time);<a name="line.103"></a>
+<span class="sourceLineNo">104</span>  }<a name="line.104"></a>
+<span class="sourceLineNo">105</span><a name="line.105"></a>
+<span class="sourceLineNo">106</span>  @Override<a name="line.106"></a>
+<span class="sourceLineNo">107</span>  public void getMetrics(MetricsCollector 
metricsCollector, boolean all) {<a name="line.107"></a>
+<span class="sourceLineNo">108</span>    MetricsRecordBuilder record = 
metricsCollector.addRecord(metricsRegistry.info());<a name="line.108"></a>
+<span class="sourceLineNo">109</span>    if (wrapper != null) {<a 
name="line.109"></a>
+<span class="sourceLineNo">110</span>      // Summarize the tables<a 
name="line.110"></a>
+<span class="sourceLineNo">111</span>      
Map&lt;String,Entry&lt;Long,Long&gt;&gt; tableUsages = 
wrapper.getTableSpaceUtilization();<a name="line.111"></a>
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name="line.112"></a>
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!tableUsages.isEmpty()) {<a name="line.113"></a>
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generateJsonQuotaSummary(tableUsages.entrySet(), "table");<a 
name="line.114"></a>
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+<span class="sourceLineNo">116</span>      
record.tag(Interns.info(TABLE_QUOTA_USAGE_NAME, TABLE_QUOTA_USAGE_DESC), 
tableSummary);<a name="line.116"></a>
+<span class="sourceLineNo">117</span><a name="line.117"></a>
+<span class="sourceLineNo">118</span>      // Summarize the namespaces<a 
name="line.118"></a>
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Map&lt;String,Entry&lt;Long,Long&gt;&gt; namespaceUsages = 
wrapper.getNamespaceSpaceUtilization();<a name="line.120"></a>
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&amp;&amp; !namespaceUsages.isEmpty()) {<a name="line.121"></a>
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generateJsonQuotaSummary(namespaceUsages.entrySet(), "namespace");<a 
name="line.122"></a>
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+<span class="sourceLineNo">124</span>      
record.tag(Interns.info(NS_QUOTA_USAGE_NAME, NS_QUOTA_USAGE_DESC), 
nsSummary);<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    }<a name="line.125"></a>
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all);<a name="line.126"></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>
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many targets (table or namespace) into JSON.<a name="line.130"></a>
+<span class="sourceLineNo">131</span>   */<a name="line.131"></a>
+<span class="sourceLineNo">132</span>  private String 
generateJsonQuotaSummary(<a name="line.132"></a>
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Iterable&lt;Entry&lt;String,Entry&lt;Long,Long&gt;&gt;&gt; data, String target) 
{<a name="line.133"></a>
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StringBuilder();<a name="line.134"></a>
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(Entry&lt;String,Entry&lt;Long,Long&gt;&gt; tableUsage : data) {<a 
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tableUsage.getKey();<a name="line.136"></a>
+<span class="sourceLineNo">137</span>      long usage = 
tableUsage.getValue().getKey();<a name="line.137"></a>
+<span class="sourceLineNo">138</span>      long limit = 
tableUsage.getValue().getValue();<a name="line.138"></a>
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sb.append("{").append(target).append("=").append(tableName).append(", 
usage=").append(usage)<a name="line.142"></a>
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limit=").append(limit).append("}");<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    }<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    sb.insert(0, "[").append("]");<a 
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+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>  @Override<a name="line.149"></a>
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incrementSnapshotObserverSnapshotComputationTime(long time) {<a 
name="line.150"></a>
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snapshotObserverSizeComputationTimeHisto.add(time);<a name="line.151"></a>
+<span class="sourceLineNo">152</span>  }<a name="line.152"></a>
+<span class="sourceLineNo">153</span><a name="line.153"></a>
+<span class="sourceLineNo">154</span>  @Override<a name="line.154"></a>
+<span class="sourceLineNo">155</span>  public void 
incrementSnapshotObserverSnapshotFetchTime(long time) {<a name="line.155"></a>
+<span class="sourceLineNo">156</span>    
snapshotObserverSnapshotFetchTimeHisto.add(time);<a name="line.156"></a>
+<span class="sourceLineNo">157</span>  }<a name="line.157"></a>
+<span class="sourceLineNo">158</span>}<a name="line.158"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/476c54ed/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileSystemUtilizationChore.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileSystemUtilizationChore.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileSystemUtilizationChore.html
index 3a8d214..5c3bcd9 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileSystemUtilizationChore.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/FileSystemUtilizationChore.html
@@ -41,192 +41,195 @@
 <span class="sourceLineNo">033</span>import 
org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.33"></a>
 <span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.regionserver.Region;<a name="line.34"></a>
 <span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.regionserver.Store;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.36"></a>
-<span class="sourceLineNo">037</span><a name="line.37"></a>
-<span class="sourceLineNo">038</span>/**<a name="line.38"></a>
-<span class="sourceLineNo">039</span> * A chore which computes the size of 
each {@link HRegion} on the FileSystem hosted by the given {@link 
HRegionServer}.<a name="line.39"></a>
-<span class="sourceLineNo">040</span> */<a name="line.40"></a>
-<span class="sourceLineNo">041</span>@InterfaceAudience.Private<a 
name="line.41"></a>
-<span class="sourceLineNo">042</span>public class FileSystemUtilizationChore 
extends ScheduledChore {<a name="line.42"></a>
-<span class="sourceLineNo">043</span>  private static final Log LOG = 
LogFactory.getLog(FileSystemUtilizationChore.class);<a name="line.43"></a>
-<span class="sourceLineNo">044</span>  static final String 
FS_UTILIZATION_CHORE_PERIOD_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.period";<a name="line.44"></a>
-<span class="sourceLineNo">045</span>  static final int 
FS_UTILIZATION_CHORE_PERIOD_DEFAULT = 1000 * 60 * 5; // 5 minutes in millis<a 
name="line.45"></a>
-<span class="sourceLineNo">046</span><a name="line.46"></a>
-<span class="sourceLineNo">047</span>  static final String 
FS_UTILIZATION_CHORE_DELAY_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.delay";<a name="line.47"></a>
-<span class="sourceLineNo">048</span>  static final long 
FS_UTILIZATION_CHORE_DELAY_DEFAULT = 1000L * 60L; // 1 minute<a 
name="line.48"></a>
-<span class="sourceLineNo">049</span><a name="line.49"></a>
-<span class="sourceLineNo">050</span>  static final String 
FS_UTILIZATION_CHORE_TIMEUNIT_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.timeunit";<a name="line.50"></a>
-<span class="sourceLineNo">051</span>  static final String 
FS_UTILIZATION_CHORE_TIMEUNIT_DEFAULT = TimeUnit.MILLISECONDS.name();<a 
name="line.51"></a>
-<span class="sourceLineNo">052</span><a name="line.52"></a>
-<span class="sourceLineNo">053</span>  static final String 
FS_UTILIZATION_MAX_ITERATION_DURATION_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.max.iteration.millis";<a 
name="line.53"></a>
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FS_UTILIZATION_MAX_ITERATION_DURATION_DEFAULT = 5000L;<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span>  private int numberOfCyclesToSkip = 0, 
prevNumberOfCyclesToSkip = 0;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>  private static final int 
CYCLE_UPPER_BOUND = 32;<a name="line.57"></a>
-<span class="sourceLineNo">058</span><a name="line.58"></a>
-<span class="sourceLineNo">059</span>  private final HRegionServer rs;<a 
name="line.59"></a>
-<span class="sourceLineNo">060</span>  private final long 
maxIterationMillis;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>  private Iterator&lt;Region&gt; 
leftoverRegions;<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span>  public 
FileSystemUtilizationChore(HRegionServer rs) {<a name="line.63"></a>
-<span class="sourceLineNo">064</span>    
super(FileSystemUtilizationChore.class.getSimpleName(), rs, 
getPeriod(rs.getConfiguration()),<a name="line.64"></a>
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getInitialDelay(rs.getConfiguration()), getTimeUnit(rs.getConfiguration()));<a 
name="line.65"></a>
-<span class="sourceLineNo">066</span>    this.rs = rs;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>    this.maxIterationMillis = 
rs.getConfiguration().getLong(<a name="line.67"></a>
-<span class="sourceLineNo">068</span>        
FS_UTILIZATION_MAX_ITERATION_DURATION_KEY, 
FS_UTILIZATION_MAX_ITERATION_DURATION_DEFAULT);<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>  @Override<a name="line.71"></a>
-<span class="sourceLineNo">072</span>  protected void chore() {<a 
name="line.72"></a>
-<span class="sourceLineNo">073</span>    if (numberOfCyclesToSkip &gt; 0) {<a 
name="line.73"></a>
-<span class="sourceLineNo">074</span>      numberOfCyclesToSkip--;<a 
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-<span class="sourceLineNo">075</span>      return;<a name="line.75"></a>
-<span class="sourceLineNo">076</span>    }<a name="line.76"></a>
-<span class="sourceLineNo">077</span>    final Map&lt;HRegionInfo,Long&gt; 
onlineRegionSizes = new HashMap&lt;&gt;();<a name="line.77"></a>
-<span class="sourceLineNo">078</span>    final Set&lt;Region&gt; onlineRegions 
= new HashSet&lt;&gt;(rs.getOnlineRegions());<a name="line.78"></a>
-<span class="sourceLineNo">079</span>    // Process the regions from the last 
run if we have any. If we are somehow having difficulty<a name="line.79"></a>
-<span class="sourceLineNo">080</span>    // processing the Regions, we want to 
avoid creating a backlog in memory of Region objs.<a name="line.80"></a>
-<span class="sourceLineNo">081</span>    Iterator&lt;Region&gt; 
oldRegionsToProcess = getLeftoverRegions();<a name="line.81"></a>
-<span class="sourceLineNo">082</span>    final Iterator&lt;Region&gt; 
iterator;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>    final boolean processingLeftovers;<a 
name="line.83"></a>
-<span class="sourceLineNo">084</span>    if (oldRegionsToProcess == null) {<a 
name="line.84"></a>
-<span class="sourceLineNo">085</span>      iterator = 
onlineRegions.iterator();<a name="line.85"></a>
-<span class="sourceLineNo">086</span>      processingLeftovers = false;<a 
name="line.86"></a>
-<span class="sourceLineNo">087</span>    } else {<a name="line.87"></a>
-<span class="sourceLineNo">088</span>      iterator = oldRegionsToProcess;<a 
name="line.88"></a>
-<span class="sourceLineNo">089</span>      processingLeftovers = true;<a 
name="line.89"></a>
-<span class="sourceLineNo">090</span>    }<a name="line.90"></a>
-<span class="sourceLineNo">091</span>    // Reset the leftoverRegions and let 
the loop re-assign if necessary.<a name="line.91"></a>
-<span class="sourceLineNo">092</span>    setLeftoverRegions(null);<a 
name="line.92"></a>
-<span class="sourceLineNo">093</span>    long regionSizesCalculated = 0L;<a 
name="line.93"></a>
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name="line.98"></a>
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maxIterationMillis) {<a name="line.101"></a>
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configuration value. Will process remaining iterators"<a name="line.103"></a>
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invocation.");<a name="line.104"></a>
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iterator.next();<a name="line.109"></a>
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regions, the region may no-longer be online.<a name="line.110"></a>
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!onlineRegions.contains(region)) {<a name="line.112"></a>
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regions which are the parent of split.<a name="line.116"></a>
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(region.getRegionInfo().isSplitParent()) {<a name="line.117"></a>
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computeSize(region);<a name="line.126"></a>
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onlineRegionSizes.put(region.getRegionInfo(), sizeInBytes);<a 
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offlineRegionsSkipped + " regions due to not being online on this RS, "<a 
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regions due to being the parent of a split, and"<a name="line.133"></a>
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regions due to being region replicas.");<a name="line.134"></a>
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(!reportRegionSizesToMaster(onlineRegionSizes)) {<a name="line.136"></a>
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prevNumberOfCyclesToSkip &gt; 0 ? 2 * prevNumberOfCyclesToSkip : 1;<a 
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numberOfCyclesToSkip;<a name="line.142"></a>
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-<span class="sourceLineNo">146</span>  /**<a name="line.146"></a>
-<span class="sourceLineNo">147</span>   * Returns an {@link Iterator} over the 
Regions which were skipped last invocation of the chore.<a name="line.147"></a>
-<span class="sourceLineNo">148</span>   *<a name="line.148"></a>
-<span class="sourceLineNo">149</span>   * @return Regions from the previous 
invocation to process, or null.<a name="line.149"></a>
-<span class="sourceLineNo">150</span>   */<a name="line.150"></a>
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getLeftoverRegions() {<a name="line.151"></a>
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leftovers.<a name="line.156"></a>
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setLeftoverRegions(Iterator&lt;Region&gt; newLeftovers) {<a name="line.158"></a>
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newLeftovers;<a name="line.159"></a>
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-<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>   * Computes total FileSystem size for 
the given {@link Region}.<a name="line.163"></a>
-<span class="sourceLineNo">164</span>   *<a name="line.164"></a>
-<span class="sourceLineNo">165</span>   * @param r The region<a 
name="line.165"></a>
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Region.<a name="line.166"></a>
-<span class="sourceLineNo">167</span>   */<a name="line.167"></a>
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-<span class="sourceLineNo">169</span>    long regionSize = 0L;<a 
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-<span class="sourceLineNo">170</span>    for (Store store : r.getStores()) {<a 
name="line.170"></a>
-<span class="sourceLineNo">171</span>      // StoreFile/StoreFileReaders are 
already instantiated with the file length cached.<a name="line.171"></a>
-<span class="sourceLineNo">172</span>      // Can avoid extra NN ops.<a 
name="line.172"></a>
-<span class="sourceLineNo">173</span>      regionSize += 
store.getStorefilesSize();<a name="line.173"></a>
+<span class="sourceLineNo">036</span>import 
org.apache.hadoop.hbase.regionserver.StoreFile;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import 
org.apache.hadoop.hbase.regionserver.StoreFileReader;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.38"></a>
+<span class="sourceLineNo">039</span><a name="line.39"></a>
+<span class="sourceLineNo">040</span>/**<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * A chore which computes the size of 
each {@link HRegion} on the FileSystem hosted by the given {@link 
HRegionServer}.<a name="line.41"></a>
+<span class="sourceLineNo">042</span> */<a name="line.42"></a>
+<span class="sourceLineNo">043</span>@InterfaceAudience.Private<a 
name="line.43"></a>
+<span class="sourceLineNo">044</span>public class FileSystemUtilizationChore 
extends ScheduledChore {<a name="line.44"></a>
+<span class="sourceLineNo">045</span>  private static final Log LOG = 
LogFactory.getLog(FileSystemUtilizationChore.class);<a name="line.45"></a>
+<span class="sourceLineNo">046</span>  static final String 
FS_UTILIZATION_CHORE_PERIOD_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.period";<a name="line.46"></a>
+<span class="sourceLineNo">047</span>  static final int 
FS_UTILIZATION_CHORE_PERIOD_DEFAULT = 1000 * 60 * 5; // 5 minutes in millis<a 
name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
+<span class="sourceLineNo">049</span>  static final String 
FS_UTILIZATION_CHORE_DELAY_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.delay";<a name="line.49"></a>
+<span class="sourceLineNo">050</span>  static final long 
FS_UTILIZATION_CHORE_DELAY_DEFAULT = 1000L * 60L; // 1 minute<a 
name="line.50"></a>
+<span class="sourceLineNo">051</span><a name="line.51"></a>
+<span class="sourceLineNo">052</span>  static final String 
FS_UTILIZATION_CHORE_TIMEUNIT_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.timeunit";<a name="line.52"></a>
+<span class="sourceLineNo">053</span>  static final String 
FS_UTILIZATION_CHORE_TIMEUNIT_DEFAULT = TimeUnit.MILLISECONDS.name();<a 
name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>  static final String 
FS_UTILIZATION_MAX_ITERATION_DURATION_KEY = 
"hbase.regionserver.quotas.fs.utilization.chore.max.iteration.millis";<a 
name="line.55"></a>
+<span class="sourceLineNo">056</span>  static final long 
FS_UTILIZATION_MAX_ITERATION_DURATION_DEFAULT = 5000L;<a name="line.56"></a>
+<span class="sourceLineNo">057</span><a name="line.57"></a>
+<span class="sourceLineNo">058</span>  private int numberOfCyclesToSkip = 0, 
prevNumberOfCyclesToSkip = 0;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>  private static final int 
CYCLE_UPPER_BOUND = 32;<a name="line.59"></a>
+<span class="sourceLineNo">060</span><a name="line.60"></a>
+<span class="sourceLineNo">061</span>  private final HRegionServer rs;<a 
name="line.61"></a>
+<span class="sourceLineNo">062</span>  private final long 
maxIterationMillis;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>  private Iterator&lt;Region&gt; 
leftoverRegions;<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span>  public 
FileSystemUtilizationChore(HRegionServer rs) {<a name="line.65"></a>
+<span class="sourceLineNo">066</span>    
super(FileSystemUtilizationChore.class.getSimpleName(), rs, 
getPeriod(rs.getConfiguration()),<a name="line.66"></a>
+<span class="sourceLineNo">067</span>        
getInitialDelay(rs.getConfiguration()), getTimeUnit(rs.getConfiguration()));<a 
name="line.67"></a>
+<span class="sourceLineNo">068</span>    this.rs = rs;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>    this.maxIterationMillis = 
rs.getConfiguration().getLong(<a name="line.69"></a>
+<span class="sourceLineNo">070</span>        
FS_UTILIZATION_MAX_ITERATION_DURATION_KEY, 
FS_UTILIZATION_MAX_ITERATION_DURATION_DEFAULT);<a name="line.70"></a>
+<span class="sourceLineNo">071</span>  }<a name="line.71"></a>
+<span class="sourceLineNo">072</span><a name="line.72"></a>
+<span class="sourceLineNo">073</span>  @Override<a name="line.73"></a>
+<span class="sourceLineNo">074</span>  protected void chore() {<a 
name="line.74"></a>
+<span class="sourceLineNo">075</span>    if (numberOfCyclesToSkip &gt; 0) {<a 
name="line.75"></a>
+<span class="sourceLineNo">076</span>      numberOfCyclesToSkip--;<a 
name="line.76"></a>
+<span class="sourceLineNo">077</span>      return;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>    }<a name="line.78"></a>
+<span class="sourceLineNo">079</span>    final Map&lt;HRegionInfo,Long&gt; 
onlineRegionSizes = new HashMap&lt;&gt;();<a name="line.79"></a>
+<span class="sourceLineNo">080</span>    final Set&lt;Region&gt; onlineRegions 
= new HashSet&lt;&gt;(rs.getOnlineRegions());<a name="line.80"></a>
+<span class="sourceLineNo">081</span>    // Process the regions from the last 
run if we have any. If we are somehow having difficulty<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    // processing the Regions, we want to 
avoid creating a backlog in memory of Region objs.<a name="line.82"></a>
+<span class="sourceLineNo">083</span>    Iterator&lt;Region&gt; 
oldRegionsToProcess = getLeftoverRegions();<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    final Iterator&lt;Region&gt; 
iterator;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    final boolean processingLeftovers;<a 
name="line.85"></a>
+<span class="sourceLineNo">086</span>    if (oldRegionsToProcess == null) {<a 
name="line.86"></a>
+<span class="sourceLineNo">087</span>      iterator = 
onlineRegions.iterator();<a name="line.87"></a>
+<span class="sourceLineNo">088</span>      processingLeftovers = false;<a 
name="line.88"></a>
+<span class="sourceLineNo">089</span>    } else {<a name="line.89"></a>
+<span class="sourceLineNo">090</span>      iterator = oldRegionsToProcess;<a 
name="line.90"></a>
+<span class="sourceLineNo">091</span>      processingLeftovers = true;<a 
name="line.91"></a>
+<span class="sourceLineNo">092</span>    }<a name="line.92"></a>
+<span class="sourceLineNo">093</span>    // Reset the leftoverRegions and let 
the loop re-assign if necessary.<a name="line.93"></a>
+<span class="sourceLineNo">094</span>    setLeftoverRegions(null);<a 
name="line.94"></a>
+<span class="sourceLineNo">095</span>    long regionSizesCalculated = 0L;<a 
name="line.95"></a>
+<span class="sourceLineNo">096</span>    long offlineRegionsSkipped = 0L;<a 
name="line.96"></a>
+<span class="sourceLineNo">097</span>    long skippedSplitParents = 0L;<a 
name="line.97"></a>
+<span class="sourceLineNo">098</span>    long skippedRegionReplicas = 0L;<a 
name="line.98"></a>
+<span class="sourceLineNo">099</span>    final long start = 
EnvironmentEdgeManager.currentTime();<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    while (iterator.hasNext()) {<a 
name="line.100"></a>
+<span class="sourceLineNo">101</span>      // Make sure this chore doesn't hog 
the thread.<a name="line.101"></a>
+<span class="sourceLineNo">102</span>      long timeRunning = 
EnvironmentEdgeManager.currentTime() - start;<a name="line.102"></a>
+<span class="sourceLineNo">103</span>      if (timeRunning &gt; 
maxIterationMillis) {<a name="line.103"></a>
+<span class="sourceLineNo">104</span>        LOG.debug("Preempting execution 
of FileSystemUtilizationChore because it exceeds the"<a name="line.104"></a>
+<span class="sourceLineNo">105</span>            + " maximum iteration 
configuration value. Will process remaining iterators"<a name="line.105"></a>
+<span class="sourceLineNo">106</span>            + " on a subsequent 
invocation.");<a name="line.106"></a>
+<span class="sourceLineNo">107</span>        setLeftoverRegions(iterator);<a 
name="line.107"></a>
+<span class="sourceLineNo">108</span>        break;<a name="line.108"></a>
+<span class="sourceLineNo">109</span>      }<a name="line.109"></a>
+<span class="sourceLineNo">110</span><a name="line.110"></a>
+<span class="sourceLineNo">111</span>      final Region region = 
iterator.next();<a name="line.111"></a>
+<span class="sourceLineNo">112</span>      // If we're processing leftover 
regions, the region may no-longer be online.<a name="line.112"></a>
+<span class="sourceLineNo">113</span>      // If so, we can skip it.<a 
name="line.113"></a>
+<span class="sourceLineNo">114</span>      if (processingLeftovers &amp;&amp; 
!onlineRegions.contains(region)) {<a name="line.114"></a>
+<span class="sourceLineNo">115</span>        offlineRegionsSkipped++;<a 
name="line.115"></a>
+<span class="sourceLineNo">116</span>        continue;<a name="line.116"></a>
+<span class="sourceLineNo">117</span>      }<a name="line.117"></a>
+<span class="sourceLineNo">118</span>      // Avoid computing the size of 
regions which are the parent of split.<a name="line.118"></a>
+<span class="sourceLineNo">119</span>      if 
(region.getRegionInfo().isSplitParent()) {<a name="line.119"></a>
+<span class="sourceLineNo">120</span>        skippedSplitParents++;<a 
name="line.120"></a>
+<span class="sourceLineNo">121</span>        continue;<a name="line.121"></a>
+<span class="sourceLineNo">122</span>      }<a name="line.122"></a>
+<span class="sourceLineNo">123</span>      // Avoid computing the size of 
region replicas.<a name="line.123"></a>
+<span class="sourceLineNo">124</span>      if (HRegionInfo.DEFAULT_REPLICA_ID 
!= region.getRegionInfo().getReplicaId()) {<a name="line.124"></a>
+<span class="sourceLineNo">125</span>        skippedRegionReplicas++;<a 
name="line.125"></a>
+<span class="sourceLineNo">126</span>        continue;<a name="line.126"></a>
+<span class="sourceLineNo">127</span>      }<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      final long sizeInBytes = 
computeSize(region);<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      
onlineRegionSizes.put(region.getRegionInfo(), sizeInBytes);<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>      regionSizesCalculated++;<a 
name="line.130"></a>
+<span class="sourceLineNo">131</span>    }<a name="line.131"></a>
+<span class="sourceLineNo">132</span>    if (LOG.isTraceEnabled()) {<a 
name="line.132"></a>
+<span class="sourceLineNo">133</span>      LOG.trace("Computed the size of " + 
regionSizesCalculated + " Regions. Skipped computation"<a name="line.133"></a>
+<span class="sourceLineNo">134</span>          + " of " + 
offlineRegionsSkipped + " regions due to not being online on this RS, "<a 
name="line.134"></a>
+<span class="sourceLineNo">135</span>          + skippedSplitParents + " 
regions due to being the parent of a split, and"<a name="line.135"></a>
+<span class="sourceLineNo">136</span>          + skippedRegionReplicas + " 
regions due to being region replicas.");<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    }<a name="line.137"></a>
+<span class="sourceLineNo">138</span>    if 
(!reportRegionSizesToMaster(onlineRegionSizes)) {<a name="line.138"></a>
+<span class="sourceLineNo">139</span>      // backoff reporting<a 
name="line.139"></a>
+<span class="sourceLineNo">140</span>      numberOfCyclesToSkip = 
prevNumberOfCyclesToSkip &gt; 0 ? 2 * prevNumberOfCyclesToSkip : 1;<a 
name="line.140"></a>
+<span class="sourceLineNo">141</span>      if (numberOfCyclesToSkip &gt; 
CYCLE_UPPER_BOUND) {<a name="line.141"></a>
+<span class="sourceLineNo">142</span>        numberOfCyclesToSkip = 
CYCLE_UPPER_BOUND;<a name="line.142"></a>
+<span class="sourceLineNo">143</span>      }<a name="line.143"></a>
+<span class="sourceLineNo">144</span>      prevNumberOfCyclesToSkip = 
numberOfCyclesToSkip;<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    }<a name="line.145"></a>
+<span class="sourceLineNo">146</span>  }<a name="line.146"></a>
+<span class="sourceLineNo">147</span><a name="line.147"></a>
+<span class="sourceLineNo">148</span>  /**<a name="line.148"></a>
+<span class="sourceLineNo">149</span>   * Returns an {@link Iterator} over the 
Regions which were skipped last invocation of the chore.<a name="line.149"></a>
+<span class="sourceLineNo">150</span>   *<a name="line.150"></a>
+<span class="sourceLineNo">151</span>   * @return Regions from the previous 
invocation to process, or null.<a name="line.151"></a>
+<span class="sourceLineNo">152</span>   */<a name="line.152"></a>
+<span class="sourceLineNo">153</span>  Iterator&lt;Region&gt; 
getLeftoverRegions() {<a name="line.153"></a>
+<span class="sourceLineNo">154</span>    return leftoverRegions;<a 
name="line.154"></a>
+<span class="sourceLineNo">155</span>  }<a name="line.155"></a>
+<span class="sourceLineNo">156</span><a name="line.156"></a>
+<span class="sourceLineNo">157</span>  /**<a name="line.157"></a>
+<span class="sourceLineNo">158</span>   * Sets a new collection of Regions as 
leftovers.<a name="line.158"></a>
+<span class="sourceLineNo">159</span>   */<a name="line.159"></a>
+<span class="sourceLineNo">160</span>  void 
setLeftoverRegions(Iterator&lt;Region&gt; newLeftovers) {<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    this.leftoverRegions = 
newLeftovers;<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>  /**<a name="line.164"></a>
+<span class="sourceLineNo">165</span>   * Computes total FileSystem size for 
the given {@link Region}.<a name="line.165"></a>
+<span class="sourceLineNo">166</span>   *<a name="line.166"></a>
+<span class="sourceLineNo">167</span>   * @param r The region<a 
name="line.167"></a>
+<span class="sourceLineNo">168</span>   * @return The size, in bytes, of the 
Region.<a name="line.168"></a>
+<span class="sourceLineNo">169</span>   */<a name="line.169"></a>
+<span class="sourceLineNo">170</span>  long computeSize(Region r) {<a 
name="line.170"></a>
+<span class="sourceLineNo">171</span>    long regionSize = 0L;<a 
name="line.171"></a>
+<span class="sourceLineNo">172</span>    for (Store store : r.getStores()) {<a 
name="line.172"></a>
+<span class="sourceLineNo">173</span>      regionSize += 
store.getHFilesSize();<a name="line.173"></a>
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computed region sizes to report.<a name="line.181"></a>
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FileSystemUtilizationChore should pause reporting to master,<a 
name="line.182"></a>
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reportRegionSizesToMaster(Map&lt;HRegionInfo,Long&gt; onlineRegionSizes) {<a 
name="line.185"></a>
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this.rs.reportRegionSizesForQuotas(onlineRegionSizes);<a name="line.186"></a>
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from the configuration.<a name="line.190"></a>
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-<span class="sourceLineNo">192</span>   * @param conf The configuration 
object.<a name="line.192"></a>
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or the default value.<a name="line.193"></a>
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conf) {<a name="line.195"></a>
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conf.getInt(FS_UTILIZATION_CHORE_PERIOD_KEY, 
FS_UTILIZATION_CHORE_PERIOD_DEFAULT);<a name="line.196"></a>
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chore from the configuration.<a name="line.200"></a>
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object.<a name="line.202"></a>
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delay or the default value.<a name="line.203"></a>
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getInitialDelay(Configuration conf) {<a name="line.205"></a>
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conf.getLong(FS_UTILIZATION_CHORE_DELAY_KEY, 
FS_UTILIZATION_CHORE_DELAY_DEFAULT);<a name="line.206"></a>
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#FS_UTILIZATION_CHORE_TIMEUNIT_KEY} must correspond to a<a name="line.211"></a>
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getTimeUnit(Configuration conf) {<a name="line.217"></a>
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TimeUnit.valueOf(conf.get(FS_UTILIZATION_CHORE_TIMEUNIT_KEY,<a 
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FS_UTILIZATION_CHORE_TIMEUNIT_DEFAULT));<a name="line.219"></a>
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name="line.175"></a>
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regionSize);<a name="line.176"></a>
+<span class="sourceLineNo">177</span>    }<a name="line.177"></a>
+<span class="sourceLineNo">178</span>    return regionSize;<a 
name="line.178"></a>
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computed region sizes to report.<a name="line.184"></a>
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FileSystemUtilizationChore should pause reporting to master,<a 
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reportRegionSizesToMaster(Map&lt;HRegionInfo,Long&gt; onlineRegionSizes) {<a 
name="line.188"></a>
+<span class="sourceLineNo">189</span>    return 
this.rs.reportRegionSizesForQuotas(onlineRegionSizes);<a name="line.189"></a>
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or the default value.<a name="line.196"></a>
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conf) {<a name="line.198"></a>
+<span class="sourceLineNo">199</span>    return 
conf.getInt(FS_UTILIZATION_CHORE_PERIOD_KEY, 
FS_UTILIZATION_CHORE_PERIOD_DEFAULT);<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>   * Extracts the initial delay for the 
chore from the configuration.<a name="line.203"></a>
+<span class="sourceLineNo">204</span>   *<a name="line.204"></a>
+<span class="sourceLineNo">205</span>   * @param conf The configuration 
object.<a name="line.205"></a>
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delay or the default value.<a name="line.206"></a>
+<span class="sourceLineNo">207</span>   */<a name="line.207"></a>
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getInitialDelay(Configuration conf) {<a name="line.208"></a>
+<span class="sourceLineNo">209</span>    return 
conf.getLong(FS_UTILIZATION_CHORE_DELAY_KEY, 
FS_UTILIZATION_CHORE_DELAY_DEFAULT);<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>
+<span class="sourceLineNo">212</span>  /**<a name="line.212"></a>
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#FS_UTILIZATION_CHORE_TIMEUNIT_KEY} must correspond to a<a name="line.214"></a>
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+<span class="sourceLineNo">216</span>   *<a name="line.216"></a>
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the chore period and initial delay or the default value.<a name="line.218"></a>
+<span class="sourceLineNo">219</span>   */<a name="line.219"></a>
+<span class="sourceLineNo">220</span>  static TimeUnit 
getTimeUnit(Configuration conf) {<a name="line.220"></a>
+<span class="sourceLineNo">221</span>    return 
TimeUnit.valueOf(conf.get(FS_UTILIZATION_CHORE_TIMEUNIT_KEY,<a 
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+<span class="sourceLineNo">222</span>        
FS_UTILIZATION_CHORE_TIMEUNIT_DEFAULT));<a name="line.222"></a>
+<span class="sourceLineNo">223</span>  }<a name="line.223"></a>
+<span class="sourceLineNo">224</span>}<a name="line.224"></a>
 
 
 

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/476c54ed/devapidocs/src-html/org/apache/hadoop/hbase/quotas/NamespaceQuotaSnapshotStore.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/NamespaceQuotaSnapshotStore.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/NamespaceQuotaSnapshotStore.html
index 584e318..6b70fcd 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/NamespaceQuotaSnapshotStore.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/NamespaceQuotaSnapshotStore.html
@@ -26,8 +26,8 @@
 <span class="sourceLineNo">018</span><a name="line.18"></a>
 <span class="sourceLineNo">019</span>import java.io.IOException;<a 
name="line.19"></a>
 <span class="sourceLineNo">020</span>import java.util.Map;<a 
name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.util.Objects;<a 
name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.Map.Entry;<a 
name="line.22"></a>
+<span class="sourceLineNo">021</span>import java.util.Map.Entry;<a 
name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.util.Objects;<a 
name="line.22"></a>
 <span class="sourceLineNo">023</span>import 
java.util.concurrent.locks.ReentrantReadWriteLock;<a name="line.23"></a>
 <span class="sourceLineNo">024</span>import 
java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock;<a 
name="line.24"></a>
 <span class="sourceLineNo">025</span>import 
java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock;<a 
name="line.25"></a>
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 <span class="sourceLineNo">078</span><a name="line.78"></a>
 <span class="sourceLineNo">079</span>  @Override<a name="line.79"></a>
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getTargetState(String subject, SpaceQuota spaceQuota) {<a name="line.80"></a>
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-<span class="sourceLineNo">082</span>    try {<a name="line.82"></a>
-<span class="sourceLineNo">083</span>      final long sizeLimitInBytes = 
spaceQuota.getSoftLimit();<a name="line.83"></a>
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entry : filterBySubject(subject)) {<a name="line.85"></a>
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name="line.86"></a>
-<span class="sourceLineNo">087</span>      }<a name="line.87"></a>
-<span class="sourceLineNo">088</span>      // Observance is defined as the 
size of the table being less than the limit<a name="line.88"></a>
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sizeLimitInBytes ? SpaceQuotaStatus.notInViolation()<a name="line.89"></a>
-<span class="sourceLineNo">090</span>          : new 
SpaceQuotaStatus(ProtobufUtil.toViolationPolicy(spaceQuota.getViolationPolicy()));<a
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-<span class="sourceLineNo">091</span>      return new 
SpaceQuotaSnapshot(status, sum, sizeLimitInBytes);<a name="line.91"></a>
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Iterable&lt;Entry&lt;HRegionInfo,Long&gt;&gt; filterBySubject(String namespace) 
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Iterables.filter(regionUsage.entrySet(), new 
Predicate&lt;Entry&lt;HRegionInfo,Long&gt;&gt;() {<a name="line.101"></a>
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apply(Entry&lt;HRegionInfo,Long&gt; input) {<a name="line.103"></a>
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namespace.equals(input.getKey().getTable().getNamespaceAsString());<a 
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-<span class="sourceLineNo">112</span>  @Override<a name="line.112"></a>
-<span class="sourceLineNo">113</span>  public void setCurrentState(String 
namespace, SpaceQuotaSnapshot snapshot) {<a name="line.113"></a>
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chore<a name="line.114"></a>
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this.chore.setNamespaceQuotaSnapshot(namespace, snapshot);<a 
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setRegionUsage(Map&lt;HRegionInfo,Long&gt; regionUsage) {<a name="line.119"></a>
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getTargetState(<a name="line.80"></a>
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spaceQuota) throws IOException {<a name="line.81"></a>
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spaceQuota.getSoftLimit();<a name="line.84"></a>
+<span class="sourceLineNo">085</span>      long sum = 0L;<a name="line.85"></a>
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entry : filterBySubject(subject)) {<a name="line.86"></a>
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name="line.87"></a>
+<span class="sourceLineNo">088</span>      }<a name="line.88"></a>
+<span class="sourceLineNo">089</span>      // Add in the size for any 
snapshots against this table<a name="line.89"></a>
+<span class="sourceLineNo">090</span>      sum += 
QuotaTableUtil.getNamespaceSnapshotSize(conn, subject);<a name="line.90"></a>
+<span class="sourceLineNo">091</span>      // Observance is defined as the 
size of the table being less than the limit<a name="line.91"></a>
+<span class="sourceLineNo">092</span>      SpaceQuotaStatus status = sum &lt;= 
sizeLimitInBytes ? SpaceQuotaStatus.notInViolation()<a name="line.92"></a>
+<span class="sourceLineNo">093</span>          : new 
SpaceQuotaStatus(ProtobufUtil.toViolationPolicy(spaceQuota.getViolationPolicy()));<a
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+<span class="sourceLineNo">094</span>      return new 
SpaceQuotaSnapshot(status, sum, sizeLimitInBytes);<a name="line.94"></a>
+<span class="sourceLineNo">095</span>    } finally {<a name="line.95"></a>
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+<span class="sourceLineNo">098</span>  }<a name="line.98"></a>
+<span class="sourceLineNo">099</span><a name="line.99"></a>
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+<span class="sourceLineNo">101</span>  public 
Iterable&lt;Entry&lt;HRegionInfo,Long&gt;&gt; filterBySubject(String namespace) 
{<a name="line.101"></a>
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+<span class="sourceLineNo">103</span>    try {<a name="line.103"></a>
+<span class="sourceLineNo">104</span>      return 
Iterables.filter(regionUsage.entrySet(), new 
Predicate&lt;Entry&lt;HRegionInfo,Long&gt;&gt;() {<a name="line.104"></a>
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+<span class="sourceLineNo">106</span>        public boolean 
apply(Entry&lt;HRegionInfo,Long&gt; input) {<a name="line.106"></a>
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namespace.equals(input.getKey().getTable().getNamespaceAsString());<a 
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+<span class="sourceLineNo">108</span>        }<a name="line.108"></a>
+<span class="sourceLineNo">109</span>      });<a name="line.109"></a>
+<span class="sourceLineNo">110</span>    } finally {<a name="line.110"></a>
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+<span class="sourceLineNo">116</span>  public void setCurrentState(String 
namespace, SpaceQuotaSnapshot snapshot) {<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    // Defer the "current state" to the 
chore<a name="line.117"></a>
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this.chore.setNamespaceQuotaSnapshot(namespace, snapshot);<a 
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+<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>  @Override<a name="line.121"></a>
+<span class="sourceLineNo">122</span>  public void 
setRegionUsage(Map&lt;HRegionInfo,Long&gt; regionUsage) {<a name="line.122"></a>
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+<span class="sourceLineNo">124</span>    try {<a name="line.124"></a>
+<span class="sourceLineNo">125</span>      this.regionUsage = 
Objects.requireNonNull(regionUsage);<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    } finally {<a name="line.126"></a>
+<span class="sourceLineNo">127</span>      wlock.unlock();<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>}<a name="line.130"></a>
 
 
 

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