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From git-site-r...@apache.org
Subject [16/21] hbase-site git commit: Published site at .
Date Tue, 22 Aug 2017 15:07:10 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/b7626a4c/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
index 883a87d..6eb57fa 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
@@ -54,1801 +54,1804 @@
 <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.RegionNormalizer;<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.shaded.protobuf.ProtobufUtil;<a name="line.79"></a>
-<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.80"></a>
-<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.81"></a>
-<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;<a name="line.82"></a>
-<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionResponse;<a name="line.83"></a>
-<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.84"></a>
-<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.86"></a>
-<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.87"></a>
-<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.util.VersionInfo;<a name="line.88"></a>
-<span class="sourceLineNo">089</span><a name="line.89"></a>
-<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span>/**<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * The AssignmentManager is the coordinator for region assign/unassign operations.<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * &lt;ul&gt;<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * &lt;li&gt;In-memory states of regions and servers are stored in {@link RegionStates}.&lt;/li&gt;<a name="line.96"></a>
-<span class="sourceLineNo">097</span> * &lt;li&gt;hbase:meta state updates are handled by {@link RegionStateStore}.&lt;/li&gt;<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * &lt;/ul&gt;<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * Regions are created by CreateTable, Split, Merge.<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * Regions are deleted by DeleteTable, Split, Merge.<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * Assigns are triggered by CreateTable, EnableTable, Split, Merge, ServerCrash.<a name="line.101"></a>
-<span class="sourceLineNo">102</span> * Unassigns are triggered by DisableTable, Split, Merge<a name="line.102"></a>
-<span class="sourceLineNo">103</span> */<a name="line.103"></a>
-<span class="sourceLineNo">104</span>@InterfaceAudience.Private<a name="line.104"></a>
-<span class="sourceLineNo">105</span>public class AssignmentManager implements ServerListener {<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  private static final Log LOG = LogFactory.getLog(AssignmentManager.class);<a name="line.106"></a>
-<span class="sourceLineNo">107</span><a name="line.107"></a>
-<span class="sourceLineNo">108</span>  // TODO: AMv2<a name="line.108"></a>
-<span class="sourceLineNo">109</span>  //  - handle region migration from hbase1 to hbase2.<a name="line.109"></a>
-<span class="sourceLineNo">110</span>  //  - handle sys table assignment first (e.g. acl, namespace)<a name="line.110"></a>
-<span class="sourceLineNo">111</span>  //  - handle table priorities<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  //  - If ServerBusyException trying to update hbase:meta, we abort the Master<a name="line.112"></a>
-<span class="sourceLineNo">113</span>  //   See updateRegionLocation in RegionStateStore.<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  //<a name="line.114"></a>
-<span class="sourceLineNo">115</span>  // See also<a name="line.115"></a>
-<span class="sourceLineNo">116</span>  // https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.ystjyrkbtoq5<a name="line.116"></a>
-<span class="sourceLineNo">117</span>  // for other TODOs.<a name="line.117"></a>
-<span class="sourceLineNo">118</span><a name="line.118"></a>
-<span class="sourceLineNo">119</span>  public static final String BOOTSTRAP_THREAD_POOL_SIZE_CONF_KEY =<a name="line.119"></a>
-<span class="sourceLineNo">120</span>      "hbase.assignment.bootstrap.thread.pool.size";<a name="line.120"></a>
-<span class="sourceLineNo">121</span><a name="line.121"></a>
-<span class="sourceLineNo">122</span>  public static final String ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY =<a name="line.122"></a>
-<span class="sourceLineNo">123</span>      "hbase.assignment.dispatch.wait.msec";<a name="line.123"></a>
-<span class="sourceLineNo">124</span>  private static final int DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC = 150;<a name="line.124"></a>
-<span class="sourceLineNo">125</span><a name="line.125"></a>
-<span class="sourceLineNo">126</span>  public static final String ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY =<a name="line.126"></a>
-<span class="sourceLineNo">127</span>      "hbase.assignment.dispatch.wait.queue.max.size";<a name="line.127"></a>
-<span class="sourceLineNo">128</span>  private static final int DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX = 100;<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>  public static final String RIT_CHORE_INTERVAL_MSEC_CONF_KEY =<a name="line.130"></a>
-<span class="sourceLineNo">131</span>      "hbase.assignment.rit.chore.interval.msec";<a name="line.131"></a>
-<span class="sourceLineNo">132</span>  private static final int DEFAULT_RIT_CHORE_INTERVAL_MSEC = 5 * 1000;<a name="line.132"></a>
-<span class="sourceLineNo">133</span><a name="line.133"></a>
-<span class="sourceLineNo">134</span>  public static final String ASSIGN_MAX_ATTEMPTS =<a name="line.134"></a>
-<span class="sourceLineNo">135</span>      "hbase.assignment.maximum.attempts";<a name="line.135"></a>
-<span class="sourceLineNo">136</span>  private static final int DEFAULT_ASSIGN_MAX_ATTEMPTS = 10;<a name="line.136"></a>
-<span class="sourceLineNo">137</span><a name="line.137"></a>
-<span class="sourceLineNo">138</span>  /** Region in Transition metrics threshold time */<a name="line.138"></a>
-<span class="sourceLineNo">139</span>  public static final String METRICS_RIT_STUCK_WARNING_THRESHOLD =<a name="line.139"></a>
-<span class="sourceLineNo">140</span>      "hbase.metrics.rit.stuck.warning.threshold";<a name="line.140"></a>
-<span class="sourceLineNo">141</span>  private static final int DEFAULT_RIT_STUCK_WARNING_THRESHOLD = 60 * 1000;<a name="line.141"></a>
-<span class="sourceLineNo">142</span><a name="line.142"></a>
-<span class="sourceLineNo">143</span>  private final ProcedureEvent&lt;?&gt; metaInitializedEvent = new ProcedureEvent&lt;&gt;("meta initialized");<a name="line.143"></a>
-<span class="sourceLineNo">144</span>  private final ProcedureEvent&lt;?&gt; metaLoadEvent = new ProcedureEvent&lt;&gt;("meta load");<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>   * Indicator that AssignmentManager has recovered the region states so<a name="line.147"></a>
-<span class="sourceLineNo">148</span>   * that ServerCrashProcedure can be fully enabled and re-assign regions<a name="line.148"></a>
-<span class="sourceLineNo">149</span>   * of dead servers. So that when re-assignment happens, AssignmentManager<a name="line.149"></a>
-<span class="sourceLineNo">150</span>   * has proper region states.<a name="line.150"></a>
-<span class="sourceLineNo">151</span>   */<a name="line.151"></a>
-<span class="sourceLineNo">152</span>  private final ProcedureEvent&lt;?&gt; failoverCleanupDone = new ProcedureEvent&lt;&gt;("failover cleanup");<a name="line.152"></a>
-<span class="sourceLineNo">153</span><a name="line.153"></a>
-<span class="sourceLineNo">154</span>  /** Listeners that are called on assignment events. */<a name="line.154"></a>
-<span class="sourceLineNo">155</span>  private final CopyOnWriteArrayList&lt;AssignmentListener&gt; listeners =<a name="line.155"></a>
-<span class="sourceLineNo">156</span>      new CopyOnWriteArrayList&lt;AssignmentListener&gt;();<a name="line.156"></a>
-<span class="sourceLineNo">157</span><a name="line.157"></a>
-<span class="sourceLineNo">158</span>  // TODO: why is this different from the listeners (carried over from the old AM)<a name="line.158"></a>
-<span class="sourceLineNo">159</span>  private RegionStateListener regionStateListener;<a name="line.159"></a>
-<span class="sourceLineNo">160</span><a name="line.160"></a>
-<span class="sourceLineNo">161</span>  private RegionNormalizer regionNormalizer;<a name="line.161"></a>
-<span class="sourceLineNo">162</span><a name="line.162"></a>
-<span class="sourceLineNo">163</span>  private final MetricsAssignmentManager metrics;<a name="line.163"></a>
-<span class="sourceLineNo">164</span>  private final RegionInTransitionChore ritChore;<a name="line.164"></a>
-<span class="sourceLineNo">165</span>  private final MasterServices master;<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span>  private final AtomicBoolean running = new AtomicBoolean(false);<a name="line.167"></a>
-<span class="sourceLineNo">168</span>  private final RegionStates regionStates = new RegionStates();<a name="line.168"></a>
-<span class="sourceLineNo">169</span>  private final RegionStateStore regionStateStore;<a name="line.169"></a>
-<span class="sourceLineNo">170</span><a name="line.170"></a>
-<span class="sourceLineNo">171</span>  private final boolean shouldAssignRegionsWithFavoredNodes;<a name="line.171"></a>
-<span class="sourceLineNo">172</span>  private final int assignDispatchWaitQueueMaxSize;<a name="line.172"></a>
-<span class="sourceLineNo">173</span>  private final int assignDispatchWaitMillis;<a name="line.173"></a>
-<span class="sourceLineNo">174</span>  private final int assignMaxAttempts;<a name="line.174"></a>
-<span class="sourceLineNo">175</span><a name="line.175"></a>
-<span class="sourceLineNo">176</span>  private final Object checkIfShouldMoveSystemRegionLock = new Object();<a name="line.176"></a>
-<span class="sourceLineNo">177</span><a name="line.177"></a>
-<span class="sourceLineNo">178</span>  private Thread assignThread;<a name="line.178"></a>
-<span class="sourceLineNo">179</span><a name="line.179"></a>
-<span class="sourceLineNo">180</span>  public AssignmentManager(final MasterServices master) {<a name="line.180"></a>
-<span class="sourceLineNo">181</span>    this(master, new RegionStateStore(master));<a name="line.181"></a>
-<span class="sourceLineNo">182</span>  }<a name="line.182"></a>
-<span class="sourceLineNo">183</span><a name="line.183"></a>
-<span class="sourceLineNo">184</span>  public AssignmentManager(final MasterServices master, final RegionStateStore stateStore) {<a name="line.184"></a>
-<span class="sourceLineNo">185</span>    this.master = master;<a name="line.185"></a>
-<span class="sourceLineNo">186</span>    this.regionStateStore = stateStore;<a name="line.186"></a>
-<span class="sourceLineNo">187</span>    this.metrics = new MetricsAssignmentManager();<a name="line.187"></a>
-<span class="sourceLineNo">188</span><a name="line.188"></a>
-<span class="sourceLineNo">189</span>    final Configuration conf = master.getConfiguration();<a name="line.189"></a>
-<span class="sourceLineNo">190</span><a name="line.190"></a>
-<span class="sourceLineNo">191</span>    // Only read favored nodes if using the favored nodes load balancer.<a name="line.191"></a>
-<span class="sourceLineNo">192</span>    this.shouldAssignRegionsWithFavoredNodes = FavoredStochasticBalancer.class.isAssignableFrom(<a name="line.192"></a>
-<span class="sourceLineNo">193</span>        conf.getClass(HConstants.HBASE_MASTER_LOADBALANCER_CLASS, Object.class));<a name="line.193"></a>
-<span class="sourceLineNo">194</span><a name="line.194"></a>
-<span class="sourceLineNo">195</span>    this.assignDispatchWaitMillis = conf.getInt(ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY,<a name="line.195"></a>
-<span class="sourceLineNo">196</span>        DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC);<a name="line.196"></a>
-<span class="sourceLineNo">197</span>    this.assignDispatchWaitQueueMaxSize = conf.getInt(ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY,<a name="line.197"></a>
-<span class="sourceLineNo">198</span>        DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX);<a name="line.198"></a>
-<span class="sourceLineNo">199</span><a name="line.199"></a>
-<span class="sourceLineNo">200</span>    this.assignMaxAttempts = Math.max(1, conf.getInt(ASSIGN_MAX_ATTEMPTS,<a name="line.200"></a>
-<span class="sourceLineNo">201</span>        DEFAULT_ASSIGN_MAX_ATTEMPTS));<a name="line.201"></a>
-<span class="sourceLineNo">202</span><a name="line.202"></a>
-<span class="sourceLineNo">203</span>    int ritChoreInterval = conf.getInt(RIT_CHORE_INTERVAL_MSEC_CONF_KEY,<a name="line.203"></a>
-<span class="sourceLineNo">204</span>        DEFAULT_RIT_CHORE_INTERVAL_MSEC);<a name="line.204"></a>
-<span class="sourceLineNo">205</span>    this.ritChore = new RegionInTransitionChore(ritChoreInterval);<a name="line.205"></a>
-<span class="sourceLineNo">206</span><a name="line.206"></a>
-<span class="sourceLineNo">207</span>    // Used for region related procedure.<a name="line.207"></a>
-<span class="sourceLineNo">208</span>    setRegionNormalizer(master.getRegionNormalizer());<a name="line.208"></a>
-<span class="sourceLineNo">209</span>  }<a name="line.209"></a>
-<span class="sourceLineNo">210</span><a name="line.210"></a>
-<span class="sourceLineNo">211</span>  public void start() throws IOException {<a name="line.211"></a>
-<span class="sourceLineNo">212</span>    if (!running.compareAndSet(false, true)) {<a name="line.212"></a>
-<span class="sourceLineNo">213</span>      return;<a name="line.213"></a>
-<span class="sourceLineNo">214</span>    }<a name="line.214"></a>
-<span class="sourceLineNo">215</span><a name="line.215"></a>
-<span class="sourceLineNo">216</span>    LOG.info("Starting assignment manager");<a name="line.216"></a>
-<span class="sourceLineNo">217</span><a name="line.217"></a>
-<span class="sourceLineNo">218</span>    // Register Server Listener<a name="line.218"></a>
-<span class="sourceLineNo">219</span>    master.getServerManager().registerListener(this);<a name="line.219"></a>
-<span class="sourceLineNo">220</span><a name="line.220"></a>
-<span class="sourceLineNo">221</span>    // Start the RegionStateStore<a name="line.221"></a>
-<span class="sourceLineNo">222</span>    regionStateStore.start();<a name="line.222"></a>
-<span class="sourceLineNo">223</span><a name="line.223"></a>
-<span class="sourceLineNo">224</span>    // Start the Assignment Thread<a name="line.224"></a>
-<span class="sourceLineNo">225</span>    startAssignmentThread();<a name="line.225"></a>
-<span class="sourceLineNo">226</span>  }<a name="line.226"></a>
-<span class="sourceLineNo">227</span><a name="line.227"></a>
-<span class="sourceLineNo">228</span>  public void stop() {<a name="line.228"></a>
-<span class="sourceLineNo">229</span>    if (!running.compareAndSet(true, false)) {<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      return;<a name="line.230"></a>
-<span class="sourceLineNo">231</span>    }<a name="line.231"></a>
-<span class="sourceLineNo">232</span><a name="line.232"></a>
-<span class="sourceLineNo">233</span>    LOG.info("Stopping assignment manager");<a name="line.233"></a>
-<span class="sourceLineNo">234</span><a name="line.234"></a>
-<span class="sourceLineNo">235</span>    // The AM is started before the procedure executor,<a name="line.235"></a>
-<span class="sourceLineNo">236</span>    // but the actual work will be loaded/submitted only once we have the executor<a name="line.236"></a>
-<span class="sourceLineNo">237</span>    final boolean hasProcExecutor = master.getMasterProcedureExecutor() != null;<a name="line.237"></a>
-<span class="sourceLineNo">238</span><a name="line.238"></a>
-<span class="sourceLineNo">239</span>    // Remove the RIT chore<a name="line.239"></a>
-<span class="sourceLineNo">240</span>    if (hasProcExecutor) {<a name="line.240"></a>
-<span class="sourceLineNo">241</span>      master.getMasterProcedureExecutor().removeChore(this.ritChore);<a name="line.241"></a>
-<span class="sourceLineNo">242</span>    }<a name="line.242"></a>
-<span class="sourceLineNo">243</span><a name="line.243"></a>
-<span class="sourceLineNo">244</span>    // Stop the Assignment Thread<a name="line.244"></a>
-<span class="sourceLineNo">245</span>    stopAssignmentThread();<a name="line.245"></a>
-<span class="sourceLineNo">246</span><a name="line.246"></a>
-<span class="sourceLineNo">247</span>    // Stop the RegionStateStore<a name="line.247"></a>
-<span class="sourceLineNo">248</span>    regionStates.clear();<a name="line.248"></a>
-<span class="sourceLineNo">249</span>    regionStateStore.stop();<a name="line.249"></a>
-<span class="sourceLineNo">250</span><a name="line.250"></a>
-<span class="sourceLineNo">251</span>    // Unregister Server Listener<a name="line.251"></a>
-<span class="sourceLineNo">252</span>    master.getServerManager().unregisterListener(this);<a name="line.252"></a>
-<span class="sourceLineNo">253</span><a name="line.253"></a>
-<span class="sourceLineNo">254</span>    // Update meta events (for testing)<a name="line.254"></a>
-<span class="sourceLineNo">255</span>    if (hasProcExecutor) {<a name="line.255"></a>
-<span class="sourceLineNo">256</span>      getProcedureScheduler().suspendEvent(metaLoadEvent);<a name="line.256"></a>
-<span class="sourceLineNo">257</span>      setFailoverCleanupDone(false);<a name="line.257"></a>
-<span class="sourceLineNo">258</span>      for (HRegionInfo hri: getMetaRegionSet()) {<a name="line.258"></a>
-<span class="sourceLineNo">259</span>        setMetaInitialized(hri, false);<a name="line.259"></a>
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-<span class="sourceLineNo">261</span>    }<a name="line.261"></a>
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-<span class="sourceLineNo">595</span>  // ============================================================================================<a name="line.595"></a>
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-<span class="sourceLineNo">660</span>   * to reopen the regions of the table.<a name="line.660"></a>
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-<span class="sourceLineNo">682</span>    // If destinationServer is null, figure it.<a name="line.682"></a>
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-<span class="sourceLineNo">685</span>    assert sn != null;<a name="line.685"></a>
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-<span class="sourceLineNo">691</span>  public MoveRegionProcedure createMoveRegionProcedure(final RegionPlan plan) {<a name="line.691"></a>
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-<span class="sourceLineNo">695</span>        try {<a name="line.695"></a>
-<span class="sourceLineNo">696</span>          LOG.info("Can not move " + plan.getRegionInfo() + " to " + plan.getDestination()<a name="line.696"></a>
-<span class="sourceLineNo">697</span>              + " because the server is not with highest version");<a name="line.697"></a>
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-<span class="sourceLineNo">699</span>              this.master.getServerManager().createDestinationServersList(exclude)));<a name="line.699"></a>
-<span class="sourceLineNo">700</span>        } catch (HBaseIOException e) {<a name="line.700"></a>
-<span class="sourceLineNo">701</span>          LOG.warn(e);<a name="line.701"></a>
-<span class="sourceLineNo">702</span>        }<a name="line.702"></a>
-<span class="sourceLineNo">703</span>      }<a name="line.703"></a>
-<span class="sourceLineNo">704</span>    }<a name="line.704"></a>
-<span class="sourceLineNo">705</span>    return new MoveRegionProcedure(getProcedureEnvironment(), plan);<a name="line.705"></a>
-<span class="sourceLineNo">706</span>  }<a name="line.706"></a>
-<span class="sourceLineNo">707</span><a name="line.707"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.YouAreDeadException;<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.RegionNormalizer;<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.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>import org.apache.hadoop.hbase.util.VersionInfo;<a name="line.89"></a>
+<span class="sourceLineNo">090</span><a name="line.90"></a>
+<span class="sourceLineNo">091</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.91"></a>
+<span class="sourceLineNo">092</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.Lists;<a name="line.92"></a>
+<span class="sourceLineNo">093</span><a name="line.93"></a>
+<span class="sourceLineNo">094</span>/**<a name="line.94"></a>
+<span class="sourceLineNo">095</span> * The AssignmentManager is the coordinator for region assign/unassign operations.<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * &lt;ul&gt;<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * &lt;li&gt;In-memory states of regions and servers are stored in {@link RegionStates}.&lt;/li&gt;<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * &lt;li&gt;hbase:meta state updates are handled by {@link RegionStateStore}.&lt;/li&gt;<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * &lt;/ul&gt;<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * Regions are created by CreateTable, Split, Merge.<a name="line.100"></a>
+<span class="sourceLineNo">101</span> * Regions are deleted by DeleteTable, Split, Merge.<a name="line.101"></a>
+<span class="sourceLineNo">102</span> * Assigns are triggered by CreateTable, EnableTable, Split, Merge, ServerCrash.<a name="line.102"></a>
+<span class="sourceLineNo">103</span> * Unassigns are triggered by DisableTable, Split, Merge<a name="line.103"></a>
+<span class="sourceLineNo">104</span> */<a name="line.104"></a>
+<span class="sourceLineNo">105</span>@InterfaceAudience.Private<a name="line.105"></a>
+<span class="sourceLineNo">106</span>public class AssignmentManager implements ServerListener {<a name="line.106"></a>
+<span class="sourceLineNo">107</span>  private static final Log LOG = LogFactory.getLog(AssignmentManager.class);<a name="line.107"></a>
+<span class="sourceLineNo">108</span><a name="line.108"></a>
+<span class="sourceLineNo">109</span>  // TODO: AMv2<a name="line.109"></a>
+<span class="sourceLineNo">110</span>  //  - handle region migration from hbase1 to hbase2.<a name="line.110"></a>
+<span class="sourceLineNo">111</span>  //  - handle sys table assignment first (e.g. acl, namespace)<a name="line.111"></a>
+<span class="sourceLineNo">112</span>  //  - handle table priorities<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  //  - If ServerBusyException trying to update hbase:meta, we abort the Master<a name="line.113"></a>
+<span class="sourceLineNo">114</span>  //   See updateRegionLocation in RegionStateStore.<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  //<a name="line.115"></a>
+<span class="sourceLineNo">116</span>  // See also<a name="line.116"></a>
+<span class="sourceLineNo">117</span>  // https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.ystjyrkbtoq5<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  // for other TODOs.<a name="line.118"></a>
+<span class="sourceLineNo">119</span><a name="line.119"></a>
+<span class="sourceLineNo">120</span>  public static final String BOOTSTRAP_THREAD_POOL_SIZE_CONF_KEY =<a name="line.120"></a>
+<span class="sourceLineNo">121</span>      "hbase.assignment.bootstrap.thread.pool.size";<a name="line.121"></a>
+<span class="sourceLineNo">122</span><a name="line.122"></a>
+<span class="sourceLineNo">123</span>  public static final String ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY =<a name="line.123"></a>
+<span class="sourceLineNo">124</span>      "hbase.assignment.dispatch.wait.msec";<a name="line.124"></a>
+<span class="sourceLineNo">125</span>  private static final int DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC = 150;<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span>  public static final String ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY =<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      "hbase.assignment.dispatch.wait.queue.max.size";<a name="line.128"></a>
+<span class="sourceLineNo">129</span>  private static final int DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX = 100;<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>  public static final String RIT_CHORE_INTERVAL_MSEC_CONF_KEY =<a name="line.131"></a>
+<span class="sourceLineNo">132</span>      "hbase.assignment.rit.chore.interval.msec";<a name="line.132"></a>
+<span class="sourceLineNo">133</span>  private static final int DEFAULT_RIT_CHORE_INTERVAL_MSEC = 5 * 1000;<a name="line.133"></a>
+<span class="sourceLineNo">134</span><a name="line.134"></a>
+<span class="sourceLineNo">135</span>  public static final String ASSIGN_MAX_ATTEMPTS =<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      "hbase.assignment.maximum.attempts";<a name="line.136"></a>
+<span class="sourceLineNo">137</span>  private static final int DEFAULT_ASSIGN_MAX_ATTEMPTS = 10;<a name="line.137"></a>
+<span class="sourceLineNo">138</span><a name="line.138"></a>
+<span class="sourceLineNo">139</span>  /** Region in Transition metrics threshold time */<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  public static final String METRICS_RIT_STUCK_WARNING_THRESHOLD =<a name="line.140"></a>
+<span class="sourceLineNo">141</span>      "hbase.metrics.rit.stuck.warning.threshold";<a name="line.141"></a>
+<span class="sourceLineNo">142</span>  private static final int DEFAULT_RIT_STUCK_WARNING_THRESHOLD = 60 * 1000;<a name="line.142"></a>
+<span class="sourceLineNo">143</span><a name="line.143"></a>
+<span class="sourceLineNo">144</span>  private final ProcedureEvent&lt;?&gt; metaInitializedEvent = new ProcedureEvent&lt;&gt;("meta initialized");<a name="line.144"></a>
+<span class="sourceLineNo">145</span>  private final ProcedureEvent&lt;?&gt; metaLoadEvent = new ProcedureEvent&lt;&gt;("meta load");<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>   * Indicator that AssignmentManager has recovered the region states so<a name="line.148"></a>
+<span class="sourceLineNo">149</span>   * that ServerCrashProcedure can be fully enabled and re-assign regions<a name="line.149"></a>
+<span class="sourceLineNo">150</span>   * of dead servers. So that when re-assignment happens, AssignmentManager<a name="line.150"></a>
+<span class="sourceLineNo">151</span>   * has proper region states.<a name="line.151"></a>
+<span class="sourceLineNo">152</span>   */<a name="line.152"></a>
+<span class="sourceLineNo">153</span>  private final ProcedureEvent&lt;?&gt; failoverCleanupDone = new ProcedureEvent&lt;&gt;("failover cleanup");<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span>  /** Listeners that are called on assignment events. */<a name="line.155"></a>
+<span class="sourceLineNo">156</span>  private final CopyOnWriteArrayList&lt;AssignmentListener&gt; listeners =<a name="line.156"></a>
+<span class="sourceLineNo">157</span>      new CopyOnWriteArrayList&lt;AssignmentListener&gt;();<a name="line.157"></a>
+<span class="sourceLineNo">158</span><a name="line.158"></a>
+<span class="sourceLineNo">159</span>  // TODO: why is this different from the listeners (carried over from the old AM)<a name="line.159"></a>
+<span class="sourceLineNo">160</span>  private RegionStateListener regionStateListener;<a name="line.160"></a>
+<span class="sourceLineNo">161</span><a name="line.161"></a>
+<span class="sourceLineNo">162</span>  private RegionNormalizer regionNormalizer;<a name="line.162"></a>
+<span class="sourceLineNo">163</span><a name="line.163"></a>
+<span class="sourceLineNo">164</span>  private final MetricsAssignmentManager metrics;<a name="line.164"></a>
+<span class="sourceLineNo">165</span>  private final RegionInTransitionChore ritChore;<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  private final MasterServices master;<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  private final AtomicBoolean running = new AtomicBoolean(false);<a name="line.168"></a>
+<span class="sourceLineNo">169</span>  private final RegionStates regionStates = new RegionStates();<a name="line.169"></a>
+<span class="sourceLineNo">170</span>  private final RegionStateStore regionStateStore;<a name="line.170"></a>
+<span class="sourceLineNo">171</span><a name="line.171"></a>
+<span class="sourceLineNo">172</span>  private final boolean shouldAssignRegionsWithFavoredNodes;<a name="line.172"></a>
+<span class="sourceLineNo">173</span>  private final int assignDispatchWaitQueueMaxSize;<a name="line.173"></a>
+<span class="sourceLineNo">174</span>  private final int assignDispatchWaitMillis;<a name="line.174"></a>
+<span class="sourceLineNo">175</span>  private final int assignMaxAttempts;<a name="line.175"></a>
+<span class="sourceLineNo">176</span><a name="line.176"></a>
+<span class="sourceLineNo">177</span>  private final Object checkIfShouldMoveSystemRegionLock = new Object();<a name="line.177"></a>
+<span class="sourceLineNo">178</span><a name="line.178"></a>
+<span class="sourceLineNo">179</span>  private Thread assignThread;<a name="line.179"></a>
+<span class="sourceLineNo">180</span><a name="line.180"></a>
+<span class="sourceLineNo">181</span>  public AssignmentManager(final MasterServices master) {<a name="line.181"></a>
+<span class="sourceLineNo">182</span>    this(master, new RegionStateStore(master));<a name="line.182"></a>
+<span class="sourceLineNo">183</span>  }<a name="line.183"></a>
+<span class="sourceLineNo">184</span><a name="line.184"></a>
+<span class="sourceLineNo">185</span>  public AssignmentManager(final MasterServices master, final RegionStateStore stateStore) {<a name="line.185"></a>
+<span class="sourceLineNo">186</span>    this.master = master;<a name="line.186"></a>
+<span class="sourceLineNo">187</span>    this.regionStateStore = stateStore;<a name="line.187"></a>
+<span class="sourceLineNo">188</span>    this.metrics = new MetricsAssignmentManager();<a name="line.188"></a>
+<span class="sourceLineNo">189</span><a name="line.189"></a>
+<span class="sourceLineNo">190</span>    final Configuration conf = master.getConfiguration();<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span>    // Only read favored nodes if using the favored nodes load balancer.<a name="line.192"></a>
+<span class="sourceLineNo">193</span>    this.shouldAssignRegionsWithFavoredNodes = FavoredStochasticBalancer.class.isAssignableFrom(<a name="line.193"></a>
+<span class="sourceLineNo">194</span>        conf.getClass(HConstants.HBASE_MASTER_LOADBALANCER_CLASS, Object.class));<a name="line.194"></a>
+<span class="sourceLineNo">195</span><a name="line.195"></a>
+<span class="sourceLineNo">196</span>    this.assignDispatchWaitMillis = conf.getInt(ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY,<a name="line.196"></a>
+<span class="sourceLineNo">197</span>        DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC);<a name="line.197"></a>
+<span class="sourceLineNo">198</span>    this.assignDispatchWaitQueueMaxSize = conf.getInt(ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY,<a name="line.198"></a>
+<span class="sourceLineNo">199</span>        DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX);<a name="line.199"></a>
+<span class="sourceLineNo">200</span><a name="line.200"></a>
+<span class="sourceLineNo">201</span>    this.assignMaxAttempts = Math.max(1, conf.getInt(ASSIGN_MAX_ATTEMPTS,<a name="line.201"></a>
+<span class="sourceLineNo">202</span>        DEFAULT_ASSIGN_MAX_ATTEMPTS));<a name="line.202"></a>
+<span class="sourceLineNo">203</span><a name="line.203"></a>
+<span class="sourceLineNo">204</span>    int ritChoreInterval = conf.getInt(RIT_CHORE_INTERVAL_MSEC_CONF_KEY,<a name="line.204"></a>
+<span class="sourceLineNo">205</span>        DEFAULT_RIT_CHORE_INTERVAL_MSEC);<a name="line.205"></a>
+<span class="sourceLineNo">206</span>    this.ritChore = new RegionInTransitionChore(ritChoreInterval);<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>    // Used for region related procedure.<a name="line.208"></a>
+<span class="sourceLineNo">209</span>    setRegionNormalizer(master.getRegionNormalizer());<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>  public void start() throws IOException {<a name="line.212"></a>
+<span class="sourceLineNo">213</span>    if (!running.compareAndSet(false, true)) {<a name="line.213"></a>
+<span class="sourceLineNo">214</span>      return;<a name="line.214"></a>
+<span class="sourceLineNo">215</span>    }<a name="line.215"></a>
+<span class="sourceLineNo">216</span><a name="line.216"></a>
+<span class="sourceLineNo">217</span>    LOG.info("Starting assignment manager");<a name="line.217"></a>
+<span class="sourceLineNo">218</span><a name="line.218"></a>
+<span class="sourceLineNo">219</span>    // Register Server Listener<a name="line.219"></a>
+<span class="sourceLineNo">220</span>    master.getServerManager().registerListener(this);<a name="line.220"></a>
+<span class="sourceLineNo">221</span><a name="line.221"></a>
+<span class="sourceLineNo">222</span>    // Start the RegionStateStore<a name="line.222"></a>
+<span class="sourceLineNo">223</span>    regionStateStore.start();<a name="line.223"></a>
+<span class="sourceLineNo">224</span><a name="line.224"></a>
+<span class="sourceLineNo">225</span>    // Start the Assignment Thread<a name="line.225"></a>
+<span class="sourceLineNo">226</span>    startAssignmentThread();<a name="line.226"></a>
+<span class="sourceLineNo">227</span>  }<a name="line.227"></a>
+<span class="sourceLineNo">228</span><a name="line.228"></a>
+<span class="sourceLineNo">229</span>  public void stop() {<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    if (!running.compareAndSet(true, false)) {<a name="line.230"></a>
+<span class="sourceLineNo">231</span>      return;<a name="line.231"></a>
+<span class="sourceLineNo">232</span>    }<a name="line.232"></a>
+<span class="sourceLineNo">233</span><a name="line.233"></a>
+<span class="sourceLineNo">234</span>    LOG.info("Stopping assignment manager");<a name="line.234"></a>
+<span class="sourceLineNo">235</span><a name="line.235"></a>
+<span class="sourceLineNo">236</span>    // The AM is started before the procedure executor,<a name="line.236"></a>
+<span class="sourceLineNo">237</span>    // but the actual work will be loaded/submitted only once we have the executor<a name="line.237"></a>
+<span class="sourceLineNo">238</span>    final boolean hasProcExecutor = master.getMasterProcedureExecutor() != null;<a name="line.238"></a>
+<span class="sourceLineNo">239</span><a name="line.239"></a>
+<span class="sourceLineNo">240</span>    // Remove the RIT chore<a name="line.240"></a>
+<span class="sourceLineNo">241</span>    if (hasProcExecutor) {<a name="line.241"></a>
+<span class="sourceLineNo">242</span>      master.getMasterProcedureExecutor().removeChore(this.ritChore);<a name="line.242"></a>
+<span class="sourceLineNo">243</span>    }<a name="line.243"></a>
+<span class="sourceLineNo">244</span><a name="line.244"></a>
+<span class="sourceLineNo">245</span>    // Stop the Assignment Thread<a name="line.245"></a>
+<span class="sourceLineNo">246</span>    stopAssignmentThread();<a name="line.246"></a>
+<span class="sourceLineNo">247</span><a name="line.247"></a>
+<span class="sourceLineNo">248</span>    // Stop the RegionStateStore<a name="line.248"></a>
+<span class="sourceLineNo">249</span>    regionStates.clear();<a name="line.249"></a>
+<span class="sourceLineNo">250</span>    regionStateStore.stop();<a name="line.250"></a>
+<span class="sourceLineNo">251</span><a name="line.251"></a>
+<span class="sourceLineNo">252</span>    // Unregister Server Listener<a name="line.252"></a>
+<span class="sourceLineNo">253</span>    master.getServerManager().unregisterList

<TRUNCATED>

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