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From git-site-r...@apache.org
Subject [11/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Fri, 07 Jul 2017 06:42:42 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/b3b50f22/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
index b0ae9ad..ed6e17d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
@@ -30,1704 +30,1791 @@
 <span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a>
 <span class="sourceLineNo">023</span>import java.util.Collection;<a name="line.23"></a>
 <span class="sourceLineNo">024</span>import java.util.Collections;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.HashMap;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import java.util.HashSet;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import java.util.List;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.util.Map;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.util.Set;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.concurrent.Future;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.concurrent.TimeUnit;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.concurrent.locks.Condition;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.stream.Collectors;<a name="line.36"></a>
-<span class="sourceLineNo">037</span><a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.commons.logging.Log;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.commons.logging.LogFactory;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.conf.Configuration;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.HConstants;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.PleaseHoldException;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.RegionException;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.RegionStateListener;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.ServerName;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.TableName;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.favored.FavoredNodesManager;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.favored.FavoredNodesPromoter;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.master.AssignmentListener;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.master.LoadBalancer;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.master.MetricsAssignmentManager;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.master.NoSuchProcedureException;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.master.ServerListener;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.RegionStateNode;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.ServerState;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.ServerStateNode;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>// TODO: why are they here?<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan.PlanType;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.master.procedure.ServerCrashProcedure;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.74"></a>
-<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.procedure2.ProcedureEvent;<a name="line.75"></a>
-<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.76"></a>
-<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.procedure2.ProcedureInMemoryChore;<a name="line.77"></a>
-<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.procedure2.util.StringUtils;<a name="line.78"></a>
-<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.79"></a>
-<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.80"></a>
-<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.81"></a>
-<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionResponse;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.87"></a>
-<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.88"></a>
-<span class="sourceLineNo">089</span><a name="line.89"></a>
-<span class="sourceLineNo">090</span>import com.google.common.annotations.VisibleForTesting;<a name="line.90"></a>
+<span class="sourceLineNo">025</span>import java.util.Comparator;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.HashMap;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.HashSet;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Set;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.concurrent.Future;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.concurrent.TimeUnit;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.util.concurrent.locks.Condition;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.stream.Collectors;<a name="line.37"></a>
+<span class="sourceLineNo">038</span><a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.commons.logging.Log;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.commons.logging.LogFactory;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.conf.Configuration;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.HConstants;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.PleaseHoldException;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.RegionException;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.RegionStateListener;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.ServerName;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.TableName;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.favored.FavoredNodesManager;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.favored.FavoredNodesPromoter;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.master.AssignmentListener;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.master.LoadBalancer;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.master.MasterServices;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.master.MetricsAssignmentManager;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.master.NoSuchProcedureException;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.master.RegionState;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.master.ServerListener;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.master.TableStateManager;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.RegionStateNode;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.ServerState;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.master.assignment.RegionStates.ServerStateNode;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>// TODO: why are they here?<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan.PlanType;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.master.procedure.MasterProcedureScheduler;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.master.procedure.ProcedureSyncWait;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.master.procedure.ServerCrashProcedure;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.75"></a>
+<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.procedure2.ProcedureEvent;<a name="line.76"></a>
+<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.procedure2.ProcedureInMemoryChore;<a name="line.78"></a>
+<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.procedure2.util.StringUtils;<a name="line.79"></a>
+<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.80"></a>
+<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.81"></a>
+<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.82"></a>
+<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.83"></a>
+<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionResponse;<a name="line.85"></a>
+<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.86"></a>
+<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.87"></a>
+<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.88"></a>
+<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.89"></a>
+<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.util.VersionInfo;<a name="line.90"></a>
 <span class="sourceLineNo">091</span><a name="line.91"></a>
-<span class="sourceLineNo">092</span>/**<a name="line.92"></a>
-<span class="sourceLineNo">093</span> * The AssignmentManager is the coordinator for region assign/unassign operations.<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * &lt;ul&gt;<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * &lt;li&gt;In-memory states of regions and servers are stored in {@link RegionStates}.&lt;/li&gt;<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * &lt;li&gt;hbase:meta state updates are handled by {@link RegionStateStore}.&lt;/li&gt;<a name="line.96"></a>
-<span class="sourceLineNo">097</span> * &lt;/ul&gt;<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * Regions are created by CreateTable, Split, Merge.<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * Regions are deleted by DeleteTable, Split, Merge.<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * Assigns are triggered by CreateTable, EnableTable, Split, Merge, ServerCrash.<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * Unassigns are triggered by DisableTable, Split, Merge<a name="line.101"></a>
-<span class="sourceLineNo">102</span> */<a name="line.102"></a>
-<span class="sourceLineNo">103</span>@InterfaceAudience.Private<a name="line.103"></a>
-<span class="sourceLineNo">104</span>public class AssignmentManager implements ServerListener {<a name="line.104"></a>
-<span class="sourceLineNo">105</span>  private static final Log LOG = LogFactory.getLog(AssignmentManager.class);<a name="line.105"></a>
-<span class="sourceLineNo">106</span><a name="line.106"></a>
-<span class="sourceLineNo">107</span>  // TODO: AMv2<a name="line.107"></a>
-<span class="sourceLineNo">108</span>  //  - handle region migration from hbase1 to hbase2.<a name="line.108"></a>
-<span class="sourceLineNo">109</span>  //  - handle sys table assignment first (e.g. acl, namespace)<a name="line.109"></a>
-<span class="sourceLineNo">110</span>  //  - handle table priorities<a name="line.110"></a>
-<span class="sourceLineNo">111</span>  //  - If ServerBusyException trying to update hbase:meta, we abort the Master<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  //   See updateRegionLocation in RegionStateStore.<a name="line.112"></a>
-<span class="sourceLineNo">113</span>  //<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  // See also<a name="line.114"></a>
-<span class="sourceLineNo">115</span>  // https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.ystjyrkbtoq5<a name="line.115"></a>
-<span class="sourceLineNo">116</span>  // for other TODOs.<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
-<span class="sourceLineNo">118</span>  public static final String BOOTSTRAP_THREAD_POOL_SIZE_CONF_KEY =<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      "hbase.assignment.bootstrap.thread.pool.size";<a name="line.119"></a>
+<span class="sourceLineNo">092</span>import com.google.common.annotations.VisibleForTesting;<a name="line.92"></a>
+<span class="sourceLineNo">093</span>import com.google.common.collect.Lists;<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>/**<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * The AssignmentManager is the coordinator for region assign/unassign operations.<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * &lt;ul&gt;<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * &lt;li&gt;In-memory states of regions and servers are stored in {@link RegionStates}.&lt;/li&gt;<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * &lt;li&gt;hbase:meta state updates are handled by {@link RegionStateStore}.&lt;/li&gt;<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * &lt;/ul&gt;<a name="line.100"></a>
+<span class="sourceLineNo">101</span> * Regions are created by CreateTable, Split, Merge.<a name="line.101"></a>
+<span class="sourceLineNo">102</span> * Regions are deleted by DeleteTable, Split, Merge.<a name="line.102"></a>
+<span class="sourceLineNo">103</span> * Assigns are triggered by CreateTable, EnableTable, Split, Merge, ServerCrash.<a name="line.103"></a>
+<span class="sourceLineNo">104</span> * Unassigns are triggered by DisableTable, Split, Merge<a name="line.104"></a>
+<span class="sourceLineNo">105</span> */<a name="line.105"></a>
+<span class="sourceLineNo">106</span>@InterfaceAudience.Private<a name="line.106"></a>
+<span class="sourceLineNo">107</span>public class AssignmentManager implements ServerListener {<a name="line.107"></a>
+<span class="sourceLineNo">108</span>  private static final Log LOG = LogFactory.getLog(AssignmentManager.class);<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>  // TODO: AMv2<a name="line.110"></a>
+<span class="sourceLineNo">111</span>  //  - handle region migration from hbase1 to hbase2.<a name="line.111"></a>
+<span class="sourceLineNo">112</span>  //  - handle sys table assignment first (e.g. acl, namespace)<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  //  - handle table priorities<a name="line.113"></a>
+<span class="sourceLineNo">114</span>  //  - If ServerBusyException trying to update hbase:meta, we abort the Master<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  //   See updateRegionLocation in RegionStateStore.<a name="line.115"></a>
+<span class="sourceLineNo">116</span>  //<a name="line.116"></a>
+<span class="sourceLineNo">117</span>  // See also<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  // https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.ystjyrkbtoq5<a name="line.118"></a>
+<span class="sourceLineNo">119</span>  // for other TODOs.<a name="line.119"></a>
 <span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span>  public static final String ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY =<a name="line.121"></a>
-<span class="sourceLineNo">122</span>      "hbase.assignment.dispatch.wait.msec";<a name="line.122"></a>
-<span class="sourceLineNo">123</span>  private static final int DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC = 150;<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span>  public static final String ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY =<a name="line.125"></a>
-<span class="sourceLineNo">126</span>      "hbase.assignment.dispatch.wait.queue.max.size";<a name="line.126"></a>
-<span class="sourceLineNo">127</span>  private static final int DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX = 100;<a name="line.127"></a>
-<span class="sourceLineNo">128</span><a name="line.128"></a>
-<span class="sourceLineNo">129</span>  public static final String RIT_CHORE_INTERVAL_MSEC_CONF_KEY =<a name="line.129"></a>
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+<span class="sourceLineNo">349</span><a name="line.349"></a>
+<span class="sourceLineNo">350</span>  public HRegionInfo getMetaRegionFromName(final byte[] regionName) {<a name="line.350"></a>
+<span class="sourceLineNo">351</span>    for (HRegionInfo hri: getMetaRegionSet()) {<a name="line.351"></a>
+<span class="sourceLineNo">352</span>      if (Bytes.equals(hri.getRegionName(), regionName)) {<a name="line.352"></a>
+<span class="sourceLineNo">353</span>        return hri;<a name="line.353"></a>
+<span class="sourceLineNo">354</span>      }<a name="line.354"></a>
+<span class="sourceLineNo">355</span>    }<a name="line.355"></a>
+<span class="sourceLineNo">356</span>    return null;<a name="line.356"></a>
+<span class="sourceLineNo">357</span>  }<a name="line.357"></a>
+<span class="sourceLineNo">358</span><a name="line.358"></a>
+<span class="sourceLineNo">359</span>  public boolean isCarryingMeta(final ServerName serverName) {<a name="line.359"></a>
+<span class="sourceLineNo">360</span>    for (HRegionInfo hri: getMetaRegionSet()) {<a name="line.360"></a>
+<span class="sourceLineNo">361</span>      if (isCarryingRegion(serverName, hri)) {<a name="line.361"></a>
+<span class="sourceLineNo">362</span>        return true;<a name="line.362"></a>
+<span class="sourceLineNo">363</span>      }<a name="line.363"></a>
+<span class="sourceLineNo">364</span>    }<a name="line.364"></a>
+<span class="sourceLineNo">365</span>    return false;<a name="line.365"></a>
+<span class="sourceLineNo">366</span>  }<a name="line.366"></a>
+<span class="sourceLineNo">367</span><a name="line.367"></a>
+<span class="sourceLineNo">368</span>  private boolean isCarryingRegion(final ServerName serverName, final HRegionInfo regionInfo) {<a name="line.368"></a>
+<span class="sourceLineNo">369</span>    // TODO: check for state?<a name="line.369"></a>
+<span class="sourceLineNo">370</span>    final RegionStateNode node = regionStates.getRegionNode(regionInfo);<a name="line.370"></a>
+<span class="sourceLineNo">371</span>    return(node != null &amp;&amp; serverName.equals(node.getRegionLocation()));<a name="line.371"></a>
+<span class="sourceLineNo">372</span>  }<a name="line.372"></a>
+<span class="sourceLineNo">373</span><a name="line.373"></a>
+<span class="sourceLineNo">374</span>  private HRegionInfo getMetaForRegion(final HRegionInfo regionInfo) {<a name="line.374"></a>
+<span class="sourceLineNo">375</span>    //if (regionInfo.isMetaRegion()) return regionInfo;<a name="line.375"></a>
+<span class="sourceLineNo">376</span>    // TODO: handle multiple meta. if the region provided is not meta lookup<a name="line.376"></a>
+<span class="sourceLineNo">377</span>    // which meta the region belongs to.<a name="line.377"></a>
+<span class="sourceLineNo">378</span>    return HRegionInfo.FIRST_META_REGIONINFO;<a name="line.378"></a>
+<span class="sourceLineNo">379</span>  }<a name="line.379"></a>
+<span class="sourceLineNo">380</span><a name="line.380"></a>
+<span class="sourceLineNo">381</span>  // TODO: handle multiple meta.<a name="line.381"></a>
+<span class="sourceLineNo">382</span>  private static final Set&lt;HRegionInfo&gt; META_REGION_SET =<a name="line.382"></a>
+<span class="sourceLineNo">383</span>      Collections.singleton(HRegionInfo.FIRST_META_REGIONINFO);<a name="line.383"></a>
+<span class="sourceLineNo">384</span>  public Set&lt;HRegionInfo&gt; getMetaRegionSet() {<a name="line.384"></a>
+<span class="sourceLineNo">385</span>    return META_REGION_SET;<a name="line.385"></a>
+<span class="sourceLineNo">386</span>  }<a name="line.386"></a>
+<span class="sourceLineNo">387</span><a name="line.387"></a>
+<span class="sourceLineNo">388</span>  // ============================================================================================<a name="line.388"></a>
+<span class="sourceLineNo">389</span>  //  META Event(s) helpers<a name="line.389"></a>
+<span class="sourceLineNo">390</span>  // ============================================================================================<a name="line.390"></a>
+<span class="sourceLineNo">391</span>  public boolean isMetaInitialized() {<a name="line.391"></a>
+<span class="sourceLineNo">392</span>    return metaInitializedEvent.isReady();<a name="line.392"></a>
+<span class="sourceLineNo">393</span>  }<a name="line.393"></a>
+<span class="sourceLineNo">394</span><a name="line.394"></a>
+<span class="sourceLineNo">395</span>  public boolean isMetaRegionInTransition() {<a name="line.395"></a>
+<span class="sourceLineNo">396</span>    return !isMetaInitialized();<a name="line.396"></a>
+<span class="sourceLineNo">397</span>  }<a name="line.397"></a>
+<span class="sourceLineNo">398</span><a name="line.398"></a>
+<span class="sourceLineNo">399</span>  public boolean waitMetaInitialized(final Procedure proc) {<a name="line.399"></a>
+<span class="sourceLineNo">400</span>    // TODO: handle multiple meta. should this wait on all meta?<a name="line.400"></a>
+<span class="sourceLineNo">401</span>    // this is used by the ServerCrashProcedure...<a name="line.401"></a>
+<span class="sourceLineNo">402</span>    return waitMetaInitialized(proc, HRegionInfo.FIRST_META_REGIONINFO);<a name="line.402"></a>
 <span class="sourceLineNo">403</span>  }<a name="line.403"></a>
 <span class="sourceLineNo">404</span><a name="line.404"></a>
-<span class="sourceLineNo">405</span>  private void setMetaInitialized(final HRegionInfo metaRegionInfo, final boolean isInitialized) {<a name="line.405"></a>
-<span class="sourceLineNo">406</span>    assert isMetaRegion(metaRegionInfo) : "unexpected non-meta region " + metaRegionInfo;<a name="line.406"></a>
-<span class="sourceLineNo">407</span>    final ProcedureEvent metaInitEvent = getMetaInitializedEvent(metaRegionInfo);<a name="line.407"></a>
-<span class="sourceLineNo">408</span>    if (isInitialized) {<a name="line.408"></a>
-<span class="sourceLineNo">409</span>      getProcedureScheduler().wakeEvent(metaInitEvent);<a name="line.409"></a>
-<span class="sourceLineNo">410</span>    } else {<a name="line.410"></a>
-<span class="sourceLineNo">411</span>      getProcedureScheduler().suspendEvent(metaInitEvent);<a name="line.411"></a>
-<span class="sourceLineNo">412</span>    }<a name="line.412"></a>
-<span class="sourceLineNo">413</span>  }<a name="line.413"></a>
-<span class="sourceLineNo">414</span><a name="line.414"></a>
-<span class="sourceLineNo">415</span>  private ProcedureEvent getMetaInitializedEvent(final HRegionInfo metaRegionInfo) {<a name="line.415"></a>
-<span class="sourceLineNo">416</span>    assert isMetaRegion(metaRegionInfo) : "unexpected non-meta region " + metaRegionInfo;<a name="line.416"></a>
-<span class="sourceLineNo">417</span>    // TODO: handle multiple meta.<a name="line.417"></a>
-<span class="sourceLineNo">418</span>    return metaInitializedEvent;<a name="line.418"></a>
-<span class="sourceLineNo">419</span>  }<a name="line.419"></a>
-<span class="sourceLineNo">420</span><a name="line.420"></a>
-<span class="sourceLineNo">421</span>  public boolean waitMetaLoaded(final Procedure proc) {<a name="line.421"></a>
-<span class="sourceLineNo">422</span>    return getProcedureScheduler().waitEvent(metaLoadEvent, proc);<a name="line.422"></a>
-<span class="sourceLineNo">423</span>  }<a name="line.423"></a>
-<span class="sourceLineNo">424</span><a name="line.424"></a>
-<span class="sourceLineNo">425</span>  protected void wakeMetaLoadedEvent() {<a name="line.425"></a>
-<span class="sourceLineNo">426</span>    getProcedureScheduler().wakeEvent(metaLoadEvent);<a name="line.426"></a>
-<span class="sourceLineNo">427</span>    assert isMetaLoaded() : "expected meta to be loaded";<a name="line.427"></a>
+<span class="sourceLineNo">405</span>  public boolean waitMetaInitialized(final Procedure proc, final HRegionInfo regionInfo) {<a name="line.405"></a>
+<span class="sourceLineNo">406</span>    return getProcedureScheduler().waitEvent(<a name="line.406"></a>
+<span class="sourceLineNo">407</span>      getMetaInitializedEvent(getMetaForRegion(regionInfo)), proc);<a name="line.407"></a>
+<span class="sourceLineNo">408</span>  }<a name="line.408"></a>
+<span class="sourceLineNo">409</span><a name="line.409"></a>
+<span class="sourceLineNo">410</span>  private void setMetaInitialized(final HRegionInfo metaRegionInfo, final boolean isInitialized) {<a name="line.410"></a>
+<span class="sourceLineNo">411</span>    assert isMetaRegion(metaRegionInfo) : "unexpected non-meta region " + metaRegionInfo;<a name="line.411"></a>
+<span class="sourceLineNo">412</span>    final ProcedureEvent metaInitEvent = getMetaInitializedEvent(metaRegionInfo);<a name="line.412"></a>
+<span class="sourceLineNo">413</span>    if (isInitialized) {<a name="line.413"></a>
+<span class="sourceLineNo">414</span>      getProcedureScheduler().wakeEvent(metaInitEvent);<a name="line.414"></a>
+<span class="sourceLineNo">415</span>    } else {<a name="line.415"></a>
+<span class="sourceLineNo">416</span>      getProcedureScheduler().suspendEvent(metaInitEvent);<a name="line.416"></a>
+<span class="sourceLineNo">417</span>    }<a name="line.417"></a>
+<span class="sourceLineNo">418</span>  }<a name="line.418"></a>
+<span class="sourceLineNo">419</span><a name="line.419"></a>
+<span class="sourceLineNo">420</span>  private ProcedureEvent getMetaInitializedEvent(final HRegionInfo metaRegionInfo) {<a name="line.420"></a>
+<span class="sourceLineNo">421</span>    assert isMetaRegion(metaRegionInfo) : "unexpected non-meta region " + metaRegionInfo;<a name="line.421"></a>
+<span class="sourceLineNo">422</span>    // TODO: handle multiple meta.<a name="line.422"></a>
+<span class="sourceLineNo">423</span>    return metaInitializedEvent;<a name="line.423"></a>
+<span class="sourceLineNo">424</span>  }<a name="line.424"></a>
+<span class="sourceLineNo">425</span><a name="line.425"></a>
+<span class="sourceLineNo">426</span>  public boolean waitMetaLoaded(final Procedure proc) {<a name="line.426"></a>
+<span class="sourceLineNo">427</span>    return getProcedureScheduler().waitEvent(metaLoadEvent, proc);<a name="line.427"></a>
 <span class="sourceLineNo">428</span>  }<a name="line.428"></a>
 <span class="sourceLineNo">429</span><a name="line.429"></a>
-<span class="sourceLineNo">430</span>  public boolean isMetaLoaded() {<a name="line.430"></a>
-<span class="sourceLineNo">431</span>    return metaLoadEvent.isReady();<a name="line.431"></a>
-<span class="sourceLineNo">432</span>  }<a name="line.432"></a>
-<span class="sourceLineNo">433</span><a name="line.433"></a>
-<span class="sourceLineNo">434</span>  // ============================================================================================<a name="line.434"></a>
-<span class="sourceLineNo">435</span>  //  TODO: Sync helpers<a name="line.435"></a>
-<span class="sourceLineNo">436</span>  // ============================================================================================<a name="line.436"></a>
-<span class="sourceLineNo">437</span>  public void assignMeta(final HRegionInfo metaRegionInfo) throws IOException {<a name="line.437"></a>
-<span class="sourceLineNo">438</span>    assignMeta(metaRegionInfo, null);<a name="line.438"></a>
-<span class="sourceLineNo">439</span>  }<a name="line.439"></a>
-<span class="sourceLineNo">440</span><a name="line.440"></a>
-<span class="sourceLineNo">441</span>  public void assignMeta(final HRegionInfo metaRegionInfo, final ServerName serverName)<a name="line.441"></a>
-<span class="sourceLineNo">442</span>      throws IOException {<a name="line.442"></a>
-<span class="sourceLineNo">443</span>    assert isMetaRegion(metaRegionInfo) : "unexpected non-meta region " + metaRegionInfo;<a name="line.443"></a>
-<span class="sourceLineNo">444</span>    AssignProcedure proc;<a name="line.444"></a>
-<span class="sourceLineNo">445</span>    if (serverName != null) {<a name="line.445"></a>
-<span class="sourceLineNo">446</span>      LOG.debug("Try assigning Meta " + metaRegionInfo + " to " + serverName);<a name="line.446"></a>
-<span class="sourceLineNo">447</span>      proc = createAssignProcedure(metaRegionInfo, serverName);<a name="line.447"></a>
-<span class="sourceLineNo">448</span>    } else {<a name="line.448"></a>
-<span class="sourceLineNo">449</span>      LOG.debug("Assigning " + metaRegionInfo.getRegionNameAsString());<a name="line.449"></a>
-<span class="sourceLineNo">450</span>      proc = createAssignProcedure(metaRegionInfo, false);<a name="line.450"></a>
-<span class="sourceLineNo">451</span>    }<a name="line.451"></a>
-<span class="sourceLineNo">452</span>    ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.452"></a>
-<span class="sourceLineNo">453</span>  }<a name="line.453"></a>
-<span class="sourceLineNo">454</span><a name="line.454"></a>
-<span class="sourceLineNo">455</span>  public void assign(final HRegionInfo regionInfo) throws IOException {<a name="line.455"></a>
-<span class="sourceLineNo">456</span>    assign(regionInfo, true);<a name="line.456"></a>
-<span class="sourceLineNo">457</span>  }<a name="line.457"></a>
-<span class="sourceLineNo">458</span><a name="line.458"></a>
-<span class="sourceLineNo">459</span>  public void assign(final HRegionInfo regionInfo, final boolean forceNewPlan) throws IOException {<a name="line.459"></a>
-<span class="sourceLineNo">460</span>    AssignProcedure proc = createAssignProcedure(regionInfo, forceNewPlan);<a name="line.460"></a>
-<span class="sourceLineNo">461</span>    ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.461"></a>
-<span class="sourceLineNo">462</span>  }<a name="line.462"></a>
-<span class="sourceLineNo">463</span><a name="line.463"></a>
-<span class="sourceLineNo">464</span>  public void unassign(final HRegionInfo regionInfo) throws IOException {<a name="line.464"></a>
-<span class="sourceLineNo">465</span>    unassign(regionInfo, false);<a name="line.465"></a>
-<span class="sourceLineNo">466</span>  }<a name="line.466"></a>
-<span class="sourceLineNo">467</span><a name="line.467"></a>
-<span class="sourceLineNo">468</span>  public void unassign(final HRegionInfo regionInfo, final boolean forceNewPlan)<a name="line.468"></a>
-<span class="sourceLineNo">469</span>  throws IOException {<a name="line.469"></a>
-<span class="sourceLineNo">470</span>    // TODO: rename this reassign<a name="line.470"></a>
-<span class="sourceLineNo">471</span>    RegionStateNode node = this.regionStates.getRegionNode(regionInfo);<a name="line.471"></a>
-<span class="sourceLineNo">472</span>    ServerName destinationServer = node.getRegionLocation();<a name="line.472"></a>
-<span class="sourceLineNo">473</span>    if (destinationServer == null) {<a name="line.473"></a>
-<span class="sourceLineNo">474</span>      throw new UnexpectedStateException("DestinationServer is null; Assigned? " + node.toString());<a name="line.474"></a>
-<span class="sourceLineNo">475</span>    }<a name="line.475"></a>
-<span class="sourceLineNo">476</span>    assert destinationServer != null; node.toString();<a name="line.476"></a>
-<span class="sourceLineNo">477</span>    UnassignProcedure proc = createUnassignProcedure(regionInfo, destinationServer, forceNewPlan);<a name="line.477"></a>
-<span class="sourceLineNo">478</span>    ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.478"></a>
-<span class="sourceLineNo">479</span>  }<a name="line.479"></a>
-<span class="sourceLineNo">480</span><a name="line.480"></a>
-<span class="sourceLineNo">481</span>  public Future&lt;byte[]&gt; moveAsync(final RegionPlan regionPlan) {<a name="line.481"></a>
-<span class="sourceLineNo">482</span>    MoveRegionProcedure proc = createMoveRegionProcedure(regionPlan);<a name="line.482"></a>
-<span class="sourceLineNo">483</span>    return ProcedureSyncWait.submitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.483"></a>
-<span class="sourceLineNo">484</span>  }<a name="line.484"></a>
-<span class="sourceLineNo">485</span><a name="line.485"></a>
-<span class="sourceLineNo">486</span>  @VisibleForTesting<a name="line.486"></a>
-<span class="sourceLineNo">487</span>  public boolean waitForAssignment(final HRegionInfo regionInfo) throws IOException {<a name="line.487"></a>
-<span class="sourceLineNo">488</span>    return waitForAssignment(regionInfo, Long.MAX_VALUE);<a name="line.488"></a>
-<span class="sourceLineNo">489</span>  }<a name="line.489"></a>
-<span class="sourceLineNo">490</span><a name="line.490"></a>
-<span class="sourceLineNo">491</span>  @VisibleForTesting<a name="line.491"></a>
-<span class="sourceLineNo">492</span>  // TODO: Remove this?<a name="line.492"></a>
-<span class="sourceLineNo">493</span>  public boolean waitForAssignment(final HRegionInfo regionInfo, final long timeout)<a name="line.493"></a>
-<span class="sourceLineNo">494</span>  throws IOException {<a name="line.494"></a>
-<span class="sourceLineNo">495</span>    RegionStateNode node = null;<a name="line.495"></a>
-<span class="sourceLineNo">496</span>    // This method can be called before the regionInfo has made it into the regionStateMap<a name="line.496"></a>
-<span class="sourceLineNo">497</span>    // so wait around here a while.<a name="line.497"></a>
-<span class="sourceLineNo">498</span>    long startTime = System.currentTimeMillis();<a name="line.498"></a>
-<span class="sourceLineNo">499</span>    // Something badly wrong if takes ten seconds to register a region.<a name="line.499"></a>
-<span class="sourceLineNo">500</span>    long endTime = startTime + 10000;<a name="line.500"></a>
-<span class="sourceLineNo">501</span>    while ((node = regionStates.getRegionNode(regionInfo)) == null &amp;&amp; isRunning() &amp;&amp;<a name="line.501"></a>
-<span class="sourceLineNo">502</span>        System.currentTimeMillis() &lt; endTime) {<a name="line.502"></a>
-<span class="sourceLineNo">503</span>      // Presume it not yet added but will be added soon. Let it spew a lot so we can tell if<a name="line.503"></a>
-<span class="sourceLineNo">504</span>      // we are waiting here alot.<a name="line.504"></a>
-<span class="sourceLineNo">505</span>      LOG.debug("Waiting on " + regionInfo + " to be added to regionStateMap");<a name="line.505"></a>
-<span class="sourceLineNo">506</span>      Threads.sleep(10);<a name="line.506"></a>
-<span class="sourceLineNo">507</span>    }<a name="line.507"></a>
-<span class="sourceLineNo">508</span>    if (node == null) {<a name="line.508"></a>
-<span class="sourceLineNo">509</span>      if (!isRunning()) return false;<a name="line.509"></a>
-<span class="sourceLineNo">510</span>      throw new RegionException(regionInfo.getRegionNameAsString() + " never registered with Assigment.");<a name="line.510"></a>
-<span class="sourceLineNo">511</span>    }<a name="line.511"></a>
+<span class="sourceLineNo">430</span>  protected void wakeMetaLoadedEvent() {<a name="line.430"></a>
+<span class="sourceLineNo">431</

<TRUNCATED>

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