http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3469cbc0/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.ServerStateNode.html
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diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.ServerStateNode.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.ServerStateNode.html
index 5420d82..6ea3672 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.ServerStateNode.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/RegionStates.ServerStateNode.html
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new ArrayList&lt;RegionInfo&gt;(regions.size());<a name="line.396"></a>
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==========================================================================<a 
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isRegionInRegionStates(final RegionInfo hri) {<a name="line.470"></a>
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(regionsMap.containsKey(hri.getRegionName()) || 
regionInTransition.containsKey(hri)<a name="line.471"></a>
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regionOffline.containsKey(hri));<a name="line.472"></a>
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==========================================================================<a 
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==========================================================================<a 
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regionsMap.get(regionInfo.getRegionName());<a name="line.485"></a>
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regions.add(node.getRegionInfo());<a name="line.502"></a>
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getRegionStateNodeFromName(final byte[] regionName) {<a name="line.489"></a>
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RegionInfo regionInfo) {<a name="line.497"></a>
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regionsMap.remove(regionInfo.getRegionName());<a name="line.498"></a>
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this.regionOffline.remove(regionInfo);<a name="line.502"></a>
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regions.add(node.toRegionState());<a name="line.514"></a>
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==========================================================================<a 
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==========================================================================<a 
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ArrayList&lt;RegionStateNode&gt; regions = new 
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getTableRegionStates(final TableName tableName) {<a name="line.515"></a>
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regions = new ArrayList&lt;RegionState&gt;();<a name="line.516"></a>
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regions.add(node.toRegionState());<a name="line.519"></a>
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regions = new ArrayList&lt;RegionInfo&gt;();<a name="line.525"></a>
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regions.add(node.getRegionInfo());<a name="line.528"></a>
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getRegionStateNodes() {<a name="line.533"></a>
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============================================================================================<a
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regions.add(node.toRegionState());<a name="line.540"></a>
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==========================================================================<a 
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==========================================================================<a 
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regionsMap.values()) {<a name="line.555"></a>
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============================================================================================<a
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============================================================================================<a
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============================================================================================<a
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============================================================================================<a
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============================================================================================<a
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State.OPEN);<a name="line.653"></a>
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regions.<a name="line.594"></a>
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&lt;code&gt;offline&lt;/code&gt; is set to true.<a name="line.596"></a>
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node, final boolean offline) {<a name="line.598"></a>
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&amp;&amp; !offline) return false;<a name="line.603"></a>
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node.getRegionInfo();<a name="line.604"></a>
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!hri.isSplit()) ||<a name="line.605"></a>
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hri.isSplit()) &amp;&amp; offline);<a name="line.606"></a>
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the specified server<a name="line.610"></a>
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getServerRegionInfoSet(final ServerName serverName) {<a name="line.614"></a>
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getServerNode(serverName);<a name="line.615"></a>
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============================================================================================<a
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============================================================================================<a
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+<span class="sourceLineNo">627</span>  /**<a name="line.627"></a>
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name="line.629"></a>
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ServerName serverName) {<a name="line.631"></a>
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getOrCreateServer(serverName);<a name="line.632"></a>
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serverNode.setState(ServerState.SPLITTING);<a name="line.634"></a>
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name="line.640"></a>
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serverName) {<a name="line.642"></a>
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getOrCreateServer(serverName);<a name="line.643"></a>
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serverNode.setState(ServerState.OFFLINE);<a name="line.645"></a>
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regionInfo) {<a name="line.649"></a>
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assignments.put(node.getRegionInfo(), node.getRegionLocation());<a 
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List&lt;RegionInfo&gt;&gt;(states.length);<a name="line.696"></a>
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++i) {<a name="line.697"></a>
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ArrayList&lt;RegionInfo&gt;());<a name="line.698"></a>
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regionsMap.values()) {<a name="line.701"></a>
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(node.getTable().equals(tableName)) {<a name="line.702"></a>
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tableRegions.get(node.getState()).add(node.getRegionInfo());<a 
name="line.703"></a>
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name="line.706"></a>
-<span class="sourceLineNo">707</span>  }<a name="line.707"></a>
+<span class="sourceLineNo">656</span>  @VisibleForTesting<a 
name="line.656"></a>
+<span class="sourceLineNo">657</span>  public void updateRegionState(final 
RegionInfo regionInfo, final State state) {<a name="line.657"></a>
+<span class="sourceLineNo">658</span>    final RegionStateNode regionNode = 
getOrCreateRegionStateNode(regionInfo);<a name="line.658"></a>
+<span class="sourceLineNo">659</span>    synchronized (regionNode) {<a 
name="line.659"></a>
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name="line.660"></a>
+<span class="sourceLineNo">661</span>    }<a name="line.661"></a>
+<span class="sourceLineNo">662</span>  }<a name="line.662"></a>
+<span class="sourceLineNo">663</span><a name="line.663"></a>
+<span class="sourceLineNo">664</span>  // 
============================================================================================<a
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+<span class="sourceLineNo">665</span>  //  TODO:<a name="line.665"></a>
+<span class="sourceLineNo">666</span>  // 
============================================================================================<a
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+<span class="sourceLineNo">667</span>  public List&lt;RegionInfo&gt; 
getAssignedRegions() {<a name="line.667"></a>
+<span class="sourceLineNo">668</span>    final List&lt;RegionInfo&gt; result = 
new ArrayList&lt;RegionInfo&gt;();<a name="line.668"></a>
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regionsMap.values()) {<a name="line.669"></a>
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result.add(node.getRegionInfo());<a name="line.671"></a>
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+<span class="sourceLineNo">676</span><a name="line.676"></a>
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RegionInfo regionInfo, final State... state) {<a name="line.677"></a>
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getRegionStateNode(regionInfo);<a name="line.678"></a>
+<span class="sourceLineNo">679</span>    if (region != null) {<a 
name="line.679"></a>
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name="line.680"></a>
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RegionInfo regionInfo) {<a name="line.687"></a>
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State.OPEN);<a name="line.688"></a>
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+<span class="sourceLineNo">690</span><a name="line.690"></a>
+<span class="sourceLineNo">691</span>  /**<a name="line.691"></a>
+<span class="sourceLineNo">692</span>   * @return True if region is offline 
(In OFFLINE or CLOSED state).<a name="line.692"></a>
+<span class="sourceLineNo">693</span>   */<a name="line.693"></a>
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RegionInfo regionInfo) {<a name="line.694"></a>
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State.OFFLINE, State.CLOSED);<a name="line.695"></a>
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List&lt;RegionInfo&gt;&gt; getSnapShotOfAssignment(<a name="line.698"></a>
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regions) {<a name="line.699"></a>
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List&lt;RegionInfo&gt;&gt; result = new HashMap&lt;ServerName, 
List&lt;RegionInfo&gt;&gt;();<a name="line.700"></a>
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name="line.701"></a>
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getRegionStateNode(hri);<a name="line.702"></a>
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+<span class="sourceLineNo">704</span><a name="line.704"></a>
+<span class="sourceLineNo">705</span>      // TODO: State.OPEN<a 
name="line.705"></a>
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node.getRegionLocation();<a name="line.706"></a>
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getRegionServerOfRegion(final RegionInfo regionInfo) {<a name="line.709"></a>
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getRegionStateNode(regionInfo);<a name="line.710"></a>
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name="line.712"></a>
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region.getRegionLocation();<a name="line.713"></a>
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region.getLastHost();<a name="line.714"></a>
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serverRegions = result.get(serverName);<a name="line.709"></a>
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name="line.710"></a>
+<span class="sourceLineNo">711</span>        serverRegions = new 
ArrayList&lt;RegionInfo&gt;();<a name="line.711"></a>
+<span class="sourceLineNo">712</span>        result.put(serverName, 
serverRegions);<a name="line.712"></a>
+<span class="sourceLineNo">713</span>      }<a name="line.713"></a>
+<span class="sourceLineNo">714</span><a name="line.714"></a>
+<span class="sourceLineNo">715</span>      
serverRegions.add(node.getRegionInfo());<a name="line.715"></a>
 <span class="sourceLineNo">716</span>    }<a name="line.716"></a>
-<span class="sourceLineNo">717</span>    return null;<a name="line.717"></a>
+<span class="sourceLineNo">717</span>    return result;<a name="line.717"></a>
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 <span class="sourceLineNo">719</span><a name="line.719"></a>
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force to aggregate the server-load to the cluster level<a name="line.725"></a>
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assignments by table.<a name="line.726"></a>
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Map&lt;ServerName, List&lt;RegionInfo&gt;&gt;&gt; getAssignmentsByTable(<a 
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List&lt;RegionInfo&gt;&gt; ensemble =<a name="line.732"></a>
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List&lt;RegionInfo&gt;&gt;(serverMap.size());<a name="line.733"></a>
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serverMap.values()) {<a name="line.734"></a>
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ensemble.put(serverNode.getServerName(), serverNode.getRegionInfoList());<a 
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Map&lt;ServerName, List&lt;RegionInfo&gt;&gt;&gt; result =<a 
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Map&lt;ServerName, List&lt;RegionInfo&gt;&gt;&gt;(1);<a name="line.740"></a>
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result.put(HConstants.ENSEMBLE_TABLE_NAME, ensemble);<a name="line.741"></a>
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-<span class="sourceLineNo">743</span>  }<a name="line.743"></a>
-<span class="sourceLineNo">744</span><a name="line.744"></a>
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Map&lt;ServerName, List&lt;RegionInfo&gt;&gt;&gt; getAssignmentsByTable() {<a 
name="line.745"></a>
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Map&lt;ServerName, List&lt;RegionInfo&gt;&gt;&gt; result = new 
HashMap&lt;&gt;();<a name="line.746"></a>
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regionsMap.values()) {<a name="line.747"></a>
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List&lt;RegionInfo&gt;&gt; tableResult = result.get(node.getTable());<a 
name="line.748"></a>
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name="line.749"></a>
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HashMap&lt;ServerName, List&lt;RegionInfo&gt;&gt;();<a name="line.750"></a>
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tableResult);<a name="line.751"></a>
-<span class="sourceLineNo">752</span>      }<a name="line.752"></a>
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node.getRegionLocation();<a name="line.754"></a>
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name="line.755"></a>
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" + node);<a name="line.756"></a>
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-<span class="sourceLineNo">758</span>      }<a name="line.758"></a>
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= tableResult.get(serverName);<a name="line.759"></a>
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name="line.760"></a>
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ArrayList&lt;RegionInfo&gt;();<a name="line.761"></a>
-<span class="sourceLineNo">762</span>        tableResult.put(serverName, 
serverResult);<a name="line.762"></a>
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-<span class="sourceLineNo">764</span><a name="line.764"></a>
-<span class="sourceLineNo">765</span>      
serverResult.add(node.getRegionInfo());<a name="line.765"></a>
-<span class="sourceLineNo">766</span>    }<a name="line.766"></a>
-<span class="sourceLineNo">767</span>    // Add online servers with no 
assignment for the table.<a name="line.767"></a>
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List&lt;RegionInfo&gt;&gt; table: result.values()) {<a name="line.768"></a>
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serverMap.keySet()) {<a name="line.769"></a>
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{<a name="line.770"></a>
-<span class="sourceLineNo">771</span>            table.put(svr, new 
ArrayList&lt;RegionInfo&gt;());<a name="line.771"></a>
-<span class="sourceLineNo">772</span>          }<a name="line.772"></a>
-<span class="sourceLineNo">773</span>        }<a name="line.773"></a>
-<span class="sourceLineNo">774</span>    }<a name="line.774"></a>
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-<span class="sourceLineNo">776</span>  }<a name="line.776"></a>
-<span class="sourceLineNo">777</span><a name="line.777"></a>
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==========================================================================<a 
name="line.778"></a>
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name="line.779"></a>
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==========================================================================<a 
name="line.780"></a>
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addRegionInTransition(final RegionStateNode regionNode,<a name="line.781"></a>
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procedure) {<a name="line.782"></a>
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!regionNode.setProcedure(procedure)) return false;<a name="line.783"></a>
-<span class="sourceLineNo">784</span><a name="line.784"></a>
-<span class="sourceLineNo">785</span>    
regionInTransition.put(regionNode.getRegionInfo(), regionNode);<a 
name="line.785"></a>
-<span class="sourceLineNo">786</span>    return true;<a name="line.786"></a>
-<span class="sourceLineNo">787</span>  }<a name="line.787"></a>
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ServerName&gt; getRegionAssignments() {<a name="line.720"></a>
+<span class="sourceLineNo">721</span>    final HashMap&lt;RegionInfo, 
ServerName&gt; assignments = new HashMap&lt;RegionInfo, ServerName&gt;();<a 
name="line.721"></a>
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regionsMap.values()) {<a name="line.722"></a>
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assignments.put(node.getRegionInfo(), node.getRegionLocation());<a 
name="line.723"></a>
+<span class="sourceLineNo">724</span>    }<a name="line.724"></a>
+<span class="sourceLineNo">725</span>    return assignments;<a 
name="line.725"></a>
+<span class="sourceLineNo">726</span>  }<a name="line.726"></a>
+<span class="sourceLineNo">727</span><a name="line.727"></a>
+<span class="sourceLineNo">728</span>  public Map&lt;RegionState.State, 
List&lt;RegionInfo&gt;&gt; getRegionByStateOfTable(TableName tableName) {<a 
name="line.728"></a>
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State.values();<a name="line.729"></a>
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List&lt;RegionInfo&gt;&gt; tableRegions =<a name="line.730"></a>
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List&lt;RegionInfo&gt;&gt;(states.length);<a name="line.731"></a>
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++i) {<a name="line.732"></a>
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ArrayList&lt;RegionInfo&gt;());<a name="line.733"></a>
+<span class="sourceLineNo">734</span>    }<a name="line.734"></a>
+<span class="sourceLineNo">735</span><a name="line.735"></a>
+<span class="sourceLineNo">736</span>    for (RegionStateNode node: 
regionsMap.values()) {<a name="line.736"></a>
+<span class="sourceLineNo">737</span>      if 
(node.getTable().equals(tableName)) {<a name="line.737"></a>
+<span class="sourceLineNo">738</span>        
tableRegions.get(node.getState()).add(node.getRegionInfo());<a 
name="line.738"></a>
+<span class="sourceLineNo">739</span>      }<a name="line.739"></a>
+<span class="sourceLineNo">740</span>    }<a name="line.740"></a>
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name="line.741"></a>
+<span class="sourceLineNo">742</span>  }<a name="line.742"></a>
+<span class="sourceLineNo">743</span><a name="line.743"></a>
+<span class="sourceLineNo">744</span>  public ServerName 
getRegionServerOfRegion(final RegionInfo regionInfo) {<a name="line.744"></a>
+<span class="sourceLineNo">745</span>    final RegionStateNode region = 
getRegionStateNode(regionInfo);<a name="line.745"></a>
+<span class="sourceLineNo">746</span>    if (region != null) {<a 
name="line.746"></a>
+<span class="sourceLineNo">747</span>      synchronized (region) {<a 
name="line.747"></a>
+<span class="sourceLineNo">748</span>        ServerName server = 
region.getRegionLocation();<a name="line.748"></a>
+<span class="sourceLineNo">749</span>        return server != null ? server : 
region.getLastHost();<a name="line.749"></a>
+<span class="sourceLineNo">750</span>      }<a name="line.750"></a>
+<span class="sourceLineNo">751</span>    }<a name="line.751"></a>
+<span class="sourceLineNo">752</span>    return null;<a name="line.752"></a>
+<span class="sourceLineNo">753</span>  }<a name="line.753"></a>
+<span class="sourceLineNo">754</span><a name="line.754"></a>
+<span class="sourceLineNo">755</span>  /**<a name="line.755"></a>
+<span class="sourceLineNo">756</span>   * This is an EXPENSIVE clone.  Cloning 
though is the safest thing to do.<a name="line.756"></a>
+<span class="sourceLineNo">757</span>   * Can't let out original since it can 
change and at least the load balancer<a name="line.757"></a>
+<span class="sourceLineNo">758</span>   * wants to iterate this exported list. 
 We need to synchronize on regions<a name="line.758"></a>
+<span class="sourceLineNo">759</span>   * since all access to this.servers is 
under a lock on this.regions.<a name="line.759"></a>
+<span class="sourceLineNo">760</span>   * @param forceByCluster a flag to 
force to aggregate the server-load to the cluster level<a name="line.760"></a>
+<span class="sourceLineNo">761</span>   * @return A clone of current 
assignments by table.<a name="line.761"></a>
+<span class="sourceLineNo">762</span>   */<a name="line.762"></a>
+<span class="sourceLineNo">763</span>  public Map&lt;TableName, 
Map&lt;ServerName, List&lt;RegionInfo&gt;&gt;&gt; getAssignmentsByTable(<a 
name="line.763"></a>
+<span class="sourceLineNo">764</span>      final boolean forceByCluster) {<a 
name="line.764"></a>
+<span class="sourceLi

<TRUNCATED>

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