http://git-wip-us.apache.org/repos/asf/hbase-site/blob/621486f3/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 7356e7a..4b5d00c 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 @@ -43,1944 +43,1961 @@ <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.hadoop.conf.Configuration;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.HConstants;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.PleaseHoldException;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.RegionException;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.RegionStateListener;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.ServerName;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.TableName;<a name="line.46"></a> -<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.YouAreDeadException;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.Result;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.exceptions.UnexpectedStateException;<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>import org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer;<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.ServerCrashException;<a name="line.74"></a> -<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.master.procedure.ServerCrashProcedure;<a name="line.75"></a> -<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.procedure2.Procedure;<a name="line.76"></a> -<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.procedure2.ProcedureEvent;<a name="line.77"></a> -<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;<a name="line.78"></a> -<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.procedure2.ProcedureInMemoryChore;<a name="line.79"></a> -<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.procedure2.util.StringUtils;<a name="line.80"></a> -<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.regionserver.SequenceId;<a name="line.81"></a> -<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.util.HasThread;<a name="line.82"></a> -<span class="sourceLineNo">083</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.83"></a> -<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.84"></a> -<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionTransitionState;<a name="line.85"></a> -<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.86"></a> -<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.87"></a> -<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;<a name="line.88"></a> -<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionResponse;<a name="line.89"></a> -<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.90"></a> -<span class="sourceLineNo">091</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.91"></a> -<span class="sourceLineNo">092</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.92"></a> -<span class="sourceLineNo">093</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.93"></a> -<span class="sourceLineNo">094</span>import org.apache.hadoop.hbase.util.VersionInfo;<a name="line.94"></a> -<span class="sourceLineNo">095</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.95"></a> -<span class="sourceLineNo">096</span>import org.slf4j.Logger;<a name="line.96"></a> -<span class="sourceLineNo">097</span>import org.slf4j.LoggerFactory;<a name="line.97"></a> -<span class="sourceLineNo">098</span><a name="line.98"></a> -<span class="sourceLineNo">099</span>/**<a name="line.99"></a> -<span class="sourceLineNo">100</span> * The AssignmentManager is the coordinator for region assign/unassign operations.<a name="line.100"></a> -<span class="sourceLineNo">101</span> * <ul><a name="line.101"></a> -<span class="sourceLineNo">102</span> * <li>In-memory states of regions and servers are stored in {@link RegionStates}.</li><a name="line.102"></a> -<span class="sourceLineNo">103</span> * <li>hbase:meta state updates are handled by {@link RegionStateStore}.</li><a name="line.103"></a> -<span class="sourceLineNo">104</span> * </ul><a name="line.104"></a> -<span class="sourceLineNo">105</span> * Regions are created by CreateTable, Split, Merge.<a name="line.105"></a> -<span class="sourceLineNo">106</span> * Regions are deleted by DeleteTable, Split, Merge.<a name="line.106"></a> -<span class="sourceLineNo">107</span> * Assigns are triggered by CreateTable, EnableTable, Split, Merge, ServerCrash.<a name="line.107"></a> -<span class="sourceLineNo">108</span> * Unassigns are triggered by DisableTable, Split, Merge<a name="line.108"></a> -<span class="sourceLineNo">109</span> */<a name="line.109"></a> -<span class="sourceLineNo">110</span>@InterfaceAudience.Private<a name="line.110"></a> -<span class="sourceLineNo">111</span>public class AssignmentManager implements ServerListener {<a name="line.111"></a> -<span class="sourceLineNo">112</span> private static final Logger LOG = LoggerFactory.getLogger(AssignmentManager.class);<a name="line.112"></a> -<span class="sourceLineNo">113</span><a name="line.113"></a> -<span class="sourceLineNo">114</span> // TODO: AMv2<a name="line.114"></a> -<span class="sourceLineNo">115</span> // - handle region migration from hbase1 to hbase2.<a name="line.115"></a> -<span class="sourceLineNo">116</span> // - handle sys table assignment first (e.g. acl, namespace)<a name="line.116"></a> -<span class="sourceLineNo">117</span> // - handle table priorities<a name="line.117"></a> -<span class="sourceLineNo">118</span> // - If ServerBusyException trying to update hbase:meta, we abort the Master<a name="line.118"></a> -<span class="sourceLineNo">119</span> // See updateRegionLocation in RegionStateStore.<a name="line.119"></a> -<span class="sourceLineNo">120</span> //<a name="line.120"></a> -<span class="sourceLineNo">121</span> // See also<a name="line.121"></a> -<span class="sourceLineNo">122</span> // https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.ystjyrkbtoq5<a name="line.122"></a> -<span class="sourceLineNo">123</span> // for other TODOs.<a name="line.123"></a> -<span class="sourceLineNo">124</span><a name="line.124"></a> -<span class="sourceLineNo">125</span> public static final String BOOTSTRAP_THREAD_POOL_SIZE_CONF_KEY =<a name="line.125"></a> -<span class="sourceLineNo">126</span> "hbase.assignment.bootstrap.thread.pool.size";<a name="line.126"></a> -<span class="sourceLineNo">127</span><a name="line.127"></a> -<span class="sourceLineNo">128</span> public static final String ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY =<a name="line.128"></a> -<span class="sourceLineNo">129</span> "hbase.assignment.dispatch.wait.msec";<a name="line.129"></a> -<span class="sourceLineNo">130</span> private static final int DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC = 150;<a name="line.130"></a> -<span class="sourceLineNo">131</span><a name="line.131"></a> -<span class="sourceLineNo">132</span> public static final String ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY =<a name="line.132"></a> -<span class="sourceLineNo">133</span> "hbase.assignment.dispatch.wait.queue.max.size";<a name="line.133"></a> -<span class="sourceLineNo">134</span> private static final int DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX = 100;<a name="line.134"></a> -<span class="sourceLineNo">135</span><a name="line.135"></a> -<span class="sourceLineNo">136</span> public static final String RIT_CHORE_INTERVAL_MSEC_CONF_KEY =<a name="line.136"></a> -<span class="sourceLineNo">137</span> "hbase.assignment.rit.chore.interval.msec";<a name="line.137"></a> -<span class="sourceLineNo">138</span> private static final int DEFAULT_RIT_CHORE_INTERVAL_MSEC = 5 * 1000;<a name="line.138"></a> -<span class="sourceLineNo">139</span><a name="line.139"></a> -<span class="sourceLineNo">140</span> public static final String ASSIGN_MAX_ATTEMPTS =<a name="line.140"></a> -<span class="sourceLineNo">141</span> "hbase.assignment.maximum.attempts";<a name="line.141"></a> -<span class="sourceLineNo">142</span> private static final int DEFAULT_ASSIGN_MAX_ATTEMPTS = 10;<a name="line.142"></a> -<span class="sourceLineNo">143</span><a name="line.143"></a> -<span class="sourceLineNo">144</span> /** Region in Transition metrics threshold time */<a name="line.144"></a> -<span class="sourceLineNo">145</span> public static final String METRICS_RIT_STUCK_WARNING_THRESHOLD =<a name="line.145"></a> -<span class="sourceLineNo">146</span> "hbase.metrics.rit.stuck.warning.threshold";<a name="line.146"></a> -<span class="sourceLineNo">147</span> private static final int DEFAULT_RIT_STUCK_WARNING_THRESHOLD = 60 * 1000;<a name="line.147"></a> -<span class="sourceLineNo">148</span><a name="line.148"></a> -<span class="sourceLineNo">149</span> private final ProcedureEvent<?> metaInitializedEvent = new ProcedureEvent<>("meta initialized");<a name="line.149"></a> -<span class="sourceLineNo">150</span> private final ProcedureEvent<?> metaLoadEvent = new ProcedureEvent<>("meta load");<a name="line.150"></a> -<span class="sourceLineNo">151</span><a name="line.151"></a> -<span class="sourceLineNo">152</span> /**<a name="line.152"></a> -<span class="sourceLineNo">153</span> * Indicator that AssignmentManager has recovered the region states so<a name="line.153"></a> -<span class="sourceLineNo">154</span> * that ServerCrashProcedure can be fully enabled and re-assign regions<a name="line.154"></a> -<span class="sourceLineNo">155</span> * of dead servers. So that when re-assignment happens, AssignmentManager<a name="line.155"></a> -<span class="sourceLineNo">156</span> * has proper region states.<a name="line.156"></a> -<span class="sourceLineNo">157</span> */<a name="line.157"></a> -<span class="sourceLineNo">158</span> private final ProcedureEvent<?> failoverCleanupDone = new ProcedureEvent<>("failover cleanup");<a name="line.158"></a> -<span class="sourceLineNo">159</span><a name="line.159"></a> -<span class="sourceLineNo">160</span> /** Listeners that are called on assignment events. */<a name="line.160"></a> -<span class="sourceLineNo">161</span> private final CopyOnWriteArrayList<AssignmentListener> listeners =<a name="line.161"></a> -<span class="sourceLineNo">162</span> new CopyOnWriteArrayList<AssignmentListener>();<a name="line.162"></a> -<span class="sourceLineNo">163</span><a name="line.163"></a> -<span class="sourceLineNo">164</span> // TODO: why is this different from the listeners (carried over from the old AM)<a name="line.164"></a> -<span class="sourceLineNo">165</span> private RegionStateListener regionStateListener;<a name="line.165"></a> -<span class="sourceLineNo">166</span><a name="line.166"></a> -<span class="sourceLineNo">167</span> private RegionNormalizer regionNormalizer;<a name="line.167"></a> -<span class="sourceLineNo">168</span><a name="line.168"></a> -<span class="sourceLineNo">169</span> private final MetricsAssignmentManager metrics;<a name="line.169"></a> -<span class="sourceLineNo">170</span> private final RegionInTransitionChore ritChore;<a name="line.170"></a> -<span class="sourceLineNo">171</span> private final MasterServices master;<a name="line.171"></a> -<span class="sourceLineNo">172</span><a name="line.172"></a> -<span class="sourceLineNo">173</span> private final AtomicBoolean running = new AtomicBoolean(false);<a name="line.173"></a> -<span class="sourceLineNo">174</span> private final RegionStates regionStates = new RegionStates();<a name="line.174"></a> -<span class="sourceLineNo">175</span> private final RegionStateStore regionStateStore;<a name="line.175"></a> -<span class="sourceLineNo">176</span><a name="line.176"></a> -<span class="sourceLineNo">177</span> private final boolean shouldAssignRegionsWithFavoredNodes;<a name="line.177"></a> -<span class="sourceLineNo">178</span> private final int assignDispatchWaitQueueMaxSize;<a name="line.178"></a> -<span class="sourceLineNo">179</span> private final int assignDispatchWaitMillis;<a name="line.179"></a> -<span class="sourceLineNo">180</span> private final int assignMaxAttempts;<a name="line.180"></a> -<span class="sourceLineNo">181</span><a name="line.181"></a> -<span class="sourceLineNo">182</span> private final Object checkIfShouldMoveSystemRegionLock = new Object();<a name="line.182"></a> -<span class="sourceLineNo">183</span><a name="line.183"></a> -<span class="sourceLineNo">184</span> private Thread assignThread;<a name="line.184"></a> -<span class="sourceLineNo">185</span><a name="line.185"></a> -<span class="sourceLineNo">186</span> public AssignmentManager(final MasterServices master) {<a name="line.186"></a> -<span class="sourceLineNo">187</span> this(master, new RegionStateStore(master));<a name="line.187"></a> -<span class="sourceLineNo">188</span> }<a name="line.188"></a> -<span class="sourceLineNo">189</span><a name="line.189"></a> -<span class="sourceLineNo">190</span> public AssignmentManager(final MasterServices master, final RegionStateStore stateStore) {<a name="line.190"></a> -<span class="sourceLineNo">191</span> this.master = master;<a name="line.191"></a> -<span class="sourceLineNo">192</span> this.regionStateStore = stateStore;<a name="line.192"></a> -<span class="sourceLineNo">193</span> this.metrics = new MetricsAssignmentManager();<a name="line.193"></a> -<span class="sourceLineNo">194</span><a name="line.194"></a> -<span class="sourceLineNo">195</span> final Configuration conf = master.getConfiguration();<a name="line.195"></a> -<span class="sourceLineNo">196</span><a name="line.196"></a> -<span class="sourceLineNo">197</span> // Only read favored nodes if using the favored nodes load balancer.<a name="line.197"></a> -<span class="sourceLineNo">198</span> this.shouldAssignRegionsWithFavoredNodes = FavoredStochasticBalancer.class.isAssignableFrom(<a name="line.198"></a> -<span class="sourceLineNo">199</span> conf.getClass(HConstants.HBASE_MASTER_LOADBALANCER_CLASS, Object.class));<a name="line.199"></a> -<span class="sourceLineNo">200</span><a name="line.200"></a> -<span class="sourceLineNo">201</span> this.assignDispatchWaitMillis = conf.getInt(ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY,<a name="line.201"></a> -<span class="sourceLineNo">202</span> DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC);<a name="line.202"></a> -<span class="sourceLineNo">203</span> this.assignDispatchWaitQueueMaxSize = conf.getInt(ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY,<a name="line.203"></a> -<span class="sourceLineNo">204</span> DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX);<a name="line.204"></a> -<span class="sourceLineNo">205</span><a name="line.205"></a> -<span class="sourceLineNo">206</span> this.assignMaxAttempts = Math.max(1, conf.getInt(ASSIGN_MAX_ATTEMPTS,<a name="line.206"></a> -<span class="sourceLineNo">207</span> DEFAULT_ASSIGN_MAX_ATTEMPTS));<a name="line.207"></a> -<span class="sourceLineNo">208</span><a name="line.208"></a> -<span class="sourceLineNo">209</span> int ritChoreInterval = conf.getInt(RIT_CHORE_INTERVAL_MSEC_CONF_KEY,<a name="line.209"></a> -<span class="sourceLineNo">210</span> DEFAULT_RIT_CHORE_INTERVAL_MSEC);<a name="line.210"></a> -<span class="sourceLineNo">211</span> this.ritChore = new RegionInTransitionChore(ritChoreInterval);<a name="line.211"></a> -<span class="sourceLineNo">212</span><a name="line.212"></a> -<span class="sourceLineNo">213</span> // Used for region related procedure.<a name="line.213"></a> -<span class="sourceLineNo">214</span> setRegionNormalizer(master.getRegionNormalizer());<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> public void start() throws IOException {<a name="line.217"></a> -<span class="sourceLineNo">218</span> if (!running.compareAndSet(false, true)) {<a name="line.218"></a> -<span class="sourceLineNo">219</span> return;<a name="line.219"></a> -<span class="sourceLineNo">220</span> }<a name="line.220"></a> -<span class="sourceLineNo">221</span><a name="line.221"></a> -<span class="sourceLineNo">222</span> LOG.trace("Starting assignment manager");<a name="line.222"></a> -<span class="sourceLineNo">223</span><a name="line.223"></a> -<span class="sourceLineNo">224</span> // Register Server Listener<a name="line.224"></a> -<span class="sourceLineNo">225</span> master.getServerManager().registerListener(this);<a name="line.225"></a> -<span class="sourceLineNo">226</span><a name="line.226"></a> -<span class="sourceLineNo">227</span> // Start the Assignment Thread<a name="line.227"></a> -<span class="sourceLineNo">228</span> startAssignmentThread();<a name="line.228"></a> -<span class="sourceLineNo">229</span> }<a name="line.229"></a> -<span class="sourceLineNo">230</span><a name="line.230"></a> -<span class="sourceLineNo">231</span> public void stop() {<a name="line.231"></a> -<span class="sourceLineNo">232</span> if (!running.compareAndSet(true, false)) {<a name="line.232"></a> -<span class="sourceLineNo">233</span> return;<a name="line.233"></a> -<span class="sourceLineNo">234</span> }<a name="line.234"></a> -<span class="sourceLineNo">235</span><a name="line.235"></a> -<span class="sourceLineNo">236</span> LOG.info("Stopping assignment manager");<a name="line.236"></a> -<span class="sourceLineNo">237</span><a name="line.237"></a> -<span class="sourceLineNo">238</span> // The AM is started before the procedure executor,<a name="line.238"></a> -<span class="sourceLineNo">239</span> // but the actual work will be loaded/submitted only once we have the executor<a name="line.239"></a> -<span class="sourceLineNo">240</span> final boolean hasProcExecutor = master.getMasterProcedureExecutor() != null;<a name="line.240"></a> -<span class="sourceLineNo">241</span><a name="line.241"></a> -<span class="sourceLineNo">242</span> // Remove the RIT chore<a name="line.242"></a> -<span class="sourceLineNo">243</span> if (hasProcExecutor) {<a name="line.243"></a> -<span class="sourceLineNo">244</span> master.getMasterProcedureExecutor().removeChore(this.ritChore);<a name="line.244"></a> -<span class="sourceLineNo">245</span> }<a name="line.245"></a> -<span class="sourceLineNo">246</span><a name="line.246"></a> -<span class="sourceLineNo">247</span> // Stop the Assignment Thread<a name="line.247"></a> -<span class="sourceLineNo">248</span> stopAssignmentThread();<a name="line.248"></a> -<span class="sourceLineNo">249</span><a name="line.249"></a> -<span class="sourceLineNo">250</span> // Stop the RegionStateStore<a name="line.250"></a> -<span class="sourceLineNo">251</span> regionStates.clear();<a name="line.251"></a> -<span class="sourceLineNo">252</span><a name="line.252"></a> -<span class="sourceLineNo">253</span> // Unregister Server Listener<a name="line.253"></a> -<span class="sourceLineNo">254</span> master.getServerManager().unregisterListener(this);<a name="line.254"></a> -<span class="sourceLineNo">255</span><a name="line.255"></a> -<span class="sourceLineNo">256</span> // Update meta events (for testing)<a name="line.256"></a> -<span class="sourceLineNo">257</span> if (hasProcExecutor) {<a name="line.257"></a> -<span class="sourceLineNo">258</span> metaLoadEvent.suspend();<a name="line.258"></a> -<span class="sourceLineNo">259</span> setFailoverCleanupDone(false);<a name="line.259"></a> -<span class="sourceLineNo">260</span> for (RegionInfo hri: getMetaRegionSet()) {<a name="line.260"></a> -<span class="sourceLineNo">261</span> setMetaInitialized(hri, false);<a name="line.261"></a> -<span class="sourceLineNo">262</span> }<a name="line.262"></a> -<span class="sourceLineNo">263</span> }<a name="line.263"></a> -<span class="sourceLineNo">264</span> }<a name="line.264"></a> -<span class="sourceLineNo">265</span><a name="line.265"></a> -<span class="sourceLineNo">266</span> public boolean isRunning() {<a name="line.266"></a> -<span class="sourceLineNo">267</span> return running.get();<a name="line.267"></a> -<span class="sourceLineNo">268</span> }<a name="line.268"></a> -<span class="sourceLineNo">269</span><a name="line.269"></a> -<span class="sourceLineNo">270</span> public Configuration getConfiguration() {<a name="line.270"></a> -<span class="sourceLineNo">271</span> return master.getConfiguration();<a name="line.271"></a> -<span class="sourceLineNo">272</span> }<a name="line.272"></a> -<span class="sourceLineNo">273</span><a name="line.273"></a> -<span class="sourceLineNo">274</span> public MetricsAssignmentManager getAssignmentManagerMetrics() {<a name="line.274"></a> -<span class="sourceLineNo">275</span> return metrics;<a name="line.275"></a> -<span class="sourceLineNo">276</span> }<a name="line.276"></a> -<span class="sourceLineNo">277</span><a name="line.277"></a> -<span class="sourceLineNo">278</span> private LoadBalancer getBalancer() {<a name="line.278"></a> -<span class="sourceLineNo">279</span> return master.getLoadBalancer();<a name="line.279"></a> -<span class="sourceLineNo">280</span> }<a name="line.280"></a> -<span class="sourceLineNo">281</span><a name="line.281"></a> -<span class="sourceLineNo">282</span> private MasterProcedureEnv getProcedureEnvironment() {<a name="line.282"></a> -<span class="sourceLineNo">283</span> return master.getMasterProcedureExecutor().getEnvironment();<a name="line.283"></a> -<span class="sourceLineNo">284</span> }<a name="line.284"></a> -<span 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register<a name="line.296"></a> -<span class="sourceLineNo">297</span> */<a name="line.297"></a> -<span class="sourceLineNo">298</span> public void registerListener(final AssignmentListener listener) {<a name="line.298"></a> -<span class="sourceLineNo">299</span> this.listeners.add(listener);<a name="line.299"></a> -<span class="sourceLineNo">300</span> }<a name="line.300"></a> -<span class="sourceLineNo">301</span><a name="line.301"></a> -<span class="sourceLineNo">302</span> /**<a name="line.302"></a> -<span class="sourceLineNo">303</span> * Remove the listener from the notification list.<a name="line.303"></a> -<span class="sourceLineNo">304</span> * @param listener The AssignmentListener to unregister<a name="line.304"></a> -<span class="sourceLineNo">305</span> */<a name="line.305"></a> -<span class="sourceLineNo">306</span> public boolean unregisterListener(final AssignmentListener listener) {<a name="line.306"></a> -<span class="sourceLineNo">307</span> return this.listeners.remove(listener);<a name="line.307"></a> -<span class="sourceLineNo">308</span> }<a name="line.308"></a> -<span class="sourceLineNo">309</span><a name="line.309"></a> -<span class="sourceLineNo">310</span> public void setRegionStateListener(final RegionStateListener listener) {<a name="line.310"></a> -<span class="sourceLineNo">311</span> this.regionStateListener = listener;<a name="line.311"></a> -<span class="sourceLineNo">312</span> }<a name="line.312"></a> -<span class="sourceLineNo">313</span><a name="line.313"></a> -<span class="sourceLineNo">314</span> public void setRegionNormalizer(final RegionNormalizer normalizer) {<a name="line.314"></a> -<span class="sourceLineNo">315</span> this.regionNormalizer = normalizer;<a name="line.315"></a> -<span class="sourceLineNo">316</span> }<a name="line.316"></a> -<span class="sourceLineNo">317</span><a name="line.317"></a> -<span class="sourceLineNo">318</span> public RegionNormalizer getRegionNormalizer() {<a 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-<span class="sourceLineNo">331</span> return this.shouldAssignRegionsWithFavoredNodes?<a name="line.331"></a> -<span class="sourceLineNo">332</span> ((FavoredStochasticBalancer)getBalancer()).getFavoredNodes(regionInfo):<a name="line.332"></a> -<span class="sourceLineNo">333</span> ServerName.EMPTY_SERVER_LIST;<a name="line.333"></a> -<span class="sourceLineNo">334</span> }<a name="line.334"></a> -<span class="sourceLineNo">335</span><a name="line.335"></a> -<span class="sourceLineNo">336</span> // ============================================================================================<a name="line.336"></a> -<span class="sourceLineNo">337</span> // Table State Manager helpers<a name="line.337"></a> -<span class="sourceLineNo">338</span> // ============================================================================================<a name="line.338"></a> -<span class="sourceLineNo">339</span> TableStateManager getTableStateManager() {<a name="line.339"></a> -<span class="sourceLineNo">340</span> return master.getTableStateManager();<a name="line.340"></a> -<span class="sourceLineNo">341</span> }<a name="line.341"></a> -<span class="sourceLineNo">342</span><a name="line.342"></a> -<span class="sourceLineNo">343</span> public boolean isTableEnabled(final TableName tableName) {<a name="line.343"></a> -<span class="sourceLineNo">344</span> return getTableStateManager().isTableState(tableName, TableState.State.ENABLED);<a name="line.344"></a> -<span class="sourceLineNo">345</span> }<a name="line.345"></a> -<span class="sourceLineNo">346</span><a name="line.346"></a> -<span class="sourceLineNo">347</span> public boolean isTableDisabled(final TableName tableName) {<a name="line.347"></a> -<span class="sourceLineNo">348</span> return getTableStateManager().isTableState(tableName,<a name="line.348"></a> -<span class="sourceLineNo">349</span> TableState.State.DISABLED, TableState.State.DISABLING);<a name="line.349"></a> -<span class="sourceLineNo">350</span> }<a name="line.350"></a> -<span class="sourceLineNo">351</span><a name="line.351"></a> -<span class="sourceLineNo">352</span> // ============================================================================================<a name="line.352"></a> -<span class="sourceLineNo">353</span> // META Helpers<a name="line.353"></a> -<span class="sourceLineNo">354</span> // ============================================================================================<a name="line.354"></a> -<span class="sourceLineNo">355</span> private boolean isMetaRegion(final RegionInfo regionInfo) {<a name="line.355"></a> -<span class="sourceLineNo">356</span> return regionInfo.isMetaRegion();<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 isMetaRegion(final byte[] regionName) {<a name="line.359"></a> -<span class="sourceLineNo">360</span> return getMetaRegionFromName(regionName) != null;<a name="line.360"></a> -<span class="sourceLineNo">361</span> }<a name="line.361"></a> -<span class="sourceLineNo">362</span><a name="line.362"></a> -<span class="sourceLineNo">363</span> public RegionInfo getMetaRegionFromName(final byte[] regionName) {<a name="line.363"></a> -<span class="sourceLineNo">364</span> for (RegionInfo hri: getMetaRegionSet()) {<a name="line.364"></a> -<span class="sourceLineNo">365</span> if (Bytes.equals(hri.getRegionName(), regionName)) {<a name="line.365"></a> -<span class="sourceLineNo">366</span> return hri;<a name="line.366"></a> -<span class="sourceLineNo">367</span> }<a name="line.367"></a> -<span class="sourceLineNo">368</span> }<a name="line.368"></a> -<span class="sourceLineNo">369</span> return null;<a name="line.369"></a> -<span class="sourceLineNo">370</span> }<a name="line.370"></a> -<span class="sourceLineNo">371</span><a name="line.371"></a> -<span class="sourceLineNo">372</span> public boolean isCarryingMeta(final ServerName serverName) {<a name="line.372"></a> -<span class="sourceLineNo">373</span> for (RegionInfo hri: getMetaRegionSet()) {<a name="line.373"></a> -<span class="sourceLineNo">374</span> if (isCarryingRegion(serverName, hri)) {<a name="line.374"></a> -<span class="sourceLineNo">375</span> return true;<a name="line.375"></a> -<span class="sourceLineNo">376</span> }<a name="line.376"></a> -<span class="sourceLineNo">377</span> }<a name="line.377"></a> -<span class="sourceLineNo">378</span> return false;<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> private boolean isCarryingRegion(final ServerName serverName, final RegionInfo regionInfo) {<a name="line.381"></a> -<span class="sourceLineNo">382</span> // TODO: check for state?<a name="line.382"></a> -<span class="sourceLineNo">383</span> final RegionStateNode node = regionStates.getRegionStateNode(regionInfo);<a name="line.383"></a> -<span class="sourceLineNo">384</span> return(node != null && serverName.equals(node.getRegionLocation()));<a name="line.384"></a> -<span class="sourceLineNo">385</span> }<a name="line.385"></a> -<span class="sourceLineNo">386</span><a name="line.386"></a> -<span class="sourceLineNo">387</span> private RegionInfo getMetaForRegion(final RegionInfo regionInfo) {<a name="line.387"></a> -<span class="sourceLineNo">388</span> //if (regionInfo.isMetaRegion()) return regionInfo;<a name="line.388"></a> -<span class="sourceLineNo">389</span> // TODO: handle multiple meta. if the region provided is not meta lookup<a name="line.389"></a> -<span class="sourceLineNo">390</span> // which meta the region belongs to.<a name="line.390"></a> -<span class="sourceLineNo">391</span> return RegionInfoBuilder.FIRST_META_REGIONINFO;<a name="line.391"></a> -<span class="sourceLineNo">392</span> }<a name="line.392"></a> -<span class="sourceLineNo">393</span><a name="line.393"></a> -<span class="sourceLineNo">394</span> // TODO: handle multiple meta.<a name="line.394"></a> -<span class="sourceLineNo">395</span> private static final Set<RegionInfo> META_REGION_SET =<a name="line.395"></a> -<span class="sourceLineNo">396</span> Collections.singleton(RegionInfoBuilder.FIRST_META_REGIONINFO);<a name="line.396"></a> -<span class="sourceLineNo">397</span> public Set<RegionInfo> getMetaRegionSet() {<a name="line.397"></a> -<span class="sourceLineNo">398</span> return META_REGION_SET;<a name="line.398"></a> -<span class="sourceLineNo">399</span> }<a name="line.399"></a> -<span class="sourceLineNo">400</span><a name="line.400"></a> -<span class="sourceLineNo">401</span> // ============================================================================================<a name="line.401"></a> -<span class="sourceLineNo">402</span> // META Event(s) helpers<a name="line.402"></a> -<span class="sourceLineNo">403</span> // ============================================================================================<a name="line.403"></a> -<span class="sourceLineNo">404</span> public boolean isMetaInitialized() {<a name="line.404"></a> -<span class="sourceLineNo">405</span> return metaInitializedEvent.isReady();<a name="line.405"></a> -<span class="sourceLineNo">406</span> }<a name="line.406"></a> -<span class="sourceLineNo">407</span><a name="line.407"></a> -<span class="sourceLineNo">408</span> public boolean isMetaRegionInTransition() {<a name="line.408"></a> -<span class="sourceLineNo">409</span> return !isMetaInitialized();<a name="line.409"></a> -<span class="sourceLineNo">410</span> }<a name="line.410"></a> -<span class="sourceLineNo">411</span><a name="line.411"></a> -<span class="sourceLineNo">412</span> public boolean waitMetaInitialized(final Procedure proc) {<a name="line.412"></a> -<span class="sourceLineNo">413</span> // TODO: 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isInitialized) {<a name="line.422"></a> -<span class="sourceLineNo">423</span> assert isMetaRegion(metaRegionInfo) : "unexpected non-meta region " + metaRegionInfo;<a name="line.423"></a> -<span class="sourceLineNo">424</span> final ProcedureEvent metaInitEvent = getMetaInitializedEvent(metaRegionInfo);<a name="line.424"></a> -<span class="sourceLineNo">425</span> if (isInitialized) {<a name="line.425"></a> -<span class="sourceLineNo">426</span> metaInitEvent.wake(getProcedureScheduler());<a name="line.426"></a> -<span class="sourceLineNo">427</span> } else {<a name="line.427"></a> -<span class="sourceLineNo">428</span> metaInitEvent.suspend();<a name="line.428"></a> -<span class="sourceLineNo">429</span> }<a name="line.429"></a> -<span class="sourceLineNo">430</span> }<a name="line.430"></a> -<span class="sourceLineNo">431</span><a name="line.431"></a> -<span class="sourceLineNo">432</span> private ProcedureEvent getMetaInitializedEvent(final RegionInfo metaRegionInfo) {<a 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metaLoadEvent.wake(getProcedureScheduler());<a name="line.443"></a> -<span class="sourceLineNo">444</span> assert isMetaLoaded() : "expected meta to be loaded";<a name="line.444"></a> -<span class="sourceLineNo">445</span> }<a name="line.445"></a> -<span class="sourceLineNo">446</span><a name="line.446"></a> -<span class="sourceLineNo">447</span> public boolean isMetaLoaded() {<a name="line.447"></a> -<span class="sourceLineNo">448</span> return metaLoadEvent.isReady();<a name="line.448"></a> -<span class="sourceLineNo">449</span> }<a name="line.449"></a> -<span class="sourceLineNo">450</span><a name="line.450"></a> -<span class="sourceLineNo">451</span> /**<a name="line.451"></a> -<span class="sourceLineNo">452</span> * Start a new thread to check if there are region servers whose versions are higher than others.<a name="line.452"></a> -<span class="sourceLineNo">453</span> * If so, move all system table regions to RS with the highest version to keep compatibility.<a 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The goal is to handle this through<a name="line.482"></a> -<span class="sourceLineNo">483</span> // regular flow of LoadBalancer as a favored node and not to have this special<a name="line.483"></a> -<span class="sourceLineNo">484</span> // handling.<a name="line.484"></a> -<span class="sourceLineNo">485</span> continue;<a name="line.485"></a> -<span class="sourceLineNo">486</span> }<a name="line.486"></a> -<span class="sourceLineNo">487</span> List<RegionInfo> regionsShouldMove = getSystemTables(server);<a name="line.487"></a> -<span class="sourceLineNo">488</span> if (!regionsShouldMove.isEmpty()) {<a name="line.488"></a> -<span class="sourceLineNo">489</span> for (RegionInfo regionInfo : regionsShouldMove) {<a name="line.489"></a> -<span class="sourceLineNo">490</span> // null value for dest forces destination server to be selected by balancer<a name="line.490"></a> -<span class="sourceLineNo">491</span> RegionPlan plan = new RegionPlan(regionInfo, server, null);<a name="line.491"></a> -<span class="sourceLineNo">492</span> if (regionInfo.isMetaRegion()) {<a name="line.492"></a> -<span class="sourceLineNo">493</span> // Must move meta region first.<a name="line.493"></a> -<span class="sourceLineNo">494</span> LOG.info("Async MOVE of {} to newer Server={}",<a name="line.494"></a> -<span class="sourceLineNo">495</span> regionInfo.getEncodedName(), server);<a name="line.495"></a> -<span class="sourceLineNo">496</span> moveAsync(plan);<a name="line.496"></a> -<span class="sourceLineNo">497</span> } else {<a name="line.497"></a> -<span class="sourceLineNo">498</span> plans.add(plan);<a name="line.498"></a> -<span class="sourceLineNo">499</span> }<a name="line.499"></a> -<span class="sourceLineNo">500</span> }<a name="line.500"></a> -<span class="sourceLineNo">501</span> }<a name="line.501"></a> -<span class="sourceLineNo">502</span> for (RegionPlan plan : plans) {<a name="line.502"></a> -<span class="sourceLineNo">503</span> LOG.info("Async MOVE of {} to newer Server={}",<a name="line.503"></a> -<span class="sourceLineNo">504</span> plan.getRegionInfo().getEncodedName(), server);<a name="line.504"></a> -<span class="sourceLineNo">505</span> moveAsync(plan);<a name="line.505"></a> -<span class="sourceLineNo">506</span> }<a name="line.506"></a> -<span class="sourceLineNo">507</span> }<a name="line.507"></a> -<span class="sourceLineNo">508</span> }<a name="line.508"></a> -<span class="sourceLineNo">509</span> } catch (Throwable t) {<a name="line.509"></a> -<span class="sourceLineNo">510</span> LOG.error(t.toString(), t);<a name="line.510"></a> -<span class="sourceLineNo">511</span> }<a name="line.511"></a> -<span class="sourceLineNo">512</span> }).start();<a name="line.512"></a> -<span class="sourceLineNo">513</span> }<a name="line.513"></a> -<span class="sourceLineNo">514</span><a name="line.514"></a> -<span class="sourceLineNo">515</span> private List<RegionInfo> getSystemTables(ServerName serverName) {<a name="line.515"></a> -<span class="sourceLineNo">516</span> Set<RegionStateNode> regions = this.getRegionStates().getServerNode(serverName).getRegions();<a name="line.516"></a> -<span class="sourceLineNo">517</span> if (regions == null) {<a name="line.517"></a> -<span class="sourceLineNo">518</span> return new ArrayList<>();<a name="line.518"></a> -<span class="sourceLineNo">519</span> }<a name="line.519"></a> -<span class="sourceLineNo">520</span> return regions.stream()<a name="line.520"></a> -<span class="sourceLineNo">521</span> .map(RegionStateNode::getRegionInfo)<a name="line.521"></a> -<span class="sourceLineNo">522</span> .filter(r -> r.getTable().isSystemTable())<a name="line.522"></a> -<span class="sourceLineNo">523</span> .collect(Collectors.toList());<a name="line.523"></a> -<span class="sourceLineNo">524</span> }<a name="line.524"></a> -<span class="sourceLineNo">525</span><a name="line.525"></a> -<span class="sourceLineNo">526</span> public void assign(final RegionInfo regionInfo, ServerName sn) throws IOException {<a name="line.526"></a> -<span class="sourceLineNo">527</span> AssignProcedure proc = createAssignProcedure(regionInfo, sn);<a name="line.527"></a> -<span class="sourceLineNo">528</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.528"></a> -<span class="sourceLineNo">529</span> }<a name="line.529"></a> -<span class="sourceLineNo">530</span><a name="line.530"></a> -<span class="sourceLineNo">531</span> public void assign(final RegionInfo regionInfo) throws IOException {<a name="line.531"></a> -<span class="sourceLineNo">532</span> AssignProcedure proc = createAssignProcedure(regionInfo);<a name="line.532"></a> -<span class="sourceLineNo">533</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.533"></a> -<span class="sourceLineNo">534</span> }<a name="line.534"></a> -<span class="sourceLineNo">535</span><a name="line.535"></a> -<span class="sourceLineNo">536</span> public void unassign(final RegionInfo regionInfo) throws IOException {<a name="line.536"></a> -<span class="sourceLineNo">537</span> unassign(regionInfo, false);<a name="line.537"></a> -<span class="sourceLineNo">538</span> }<a name="line.538"></a> -<span class="sourceLineNo">539</span><a name="line.539"></a> -<span class="sourceLineNo">540</span> public void unassign(final RegionInfo regionInfo, final boolean forceNewPlan)<a name="line.540"></a> -<span class="sourceLineNo">541</span> throws IOException {<a name="line.541"></a> -<span class="sourceLineNo">542</span> // TODO: rename this reassign<a name="line.542"></a> -<span class="sourceLineNo">543</span> RegionStateNode node = this.regionStates.getRegionStateNode(regionInfo);<a name="line.543"></a> -<span class="sourceLineNo">544</span> ServerName destinationServer = node.getRegionLocation();<a name="line.544"></a> -<span class="sourceLineNo">545</span> if (destinationServer == null) {<a name="line.545"></a> -<span class="sourceLineNo">546</span> throw new UnexpectedStateException("DestinationServer is null; Assigned? " + node.toString());<a name="line.546"></a> -<span class="sourceLineNo">547</span> }<a name="line.547"></a> -<span class="sourceLineNo">548</span> assert destinationServer != null; node.toString();<a name="line.548"></a> -<span class="sourceLineNo">549</span> UnassignProcedure proc = createUnassignProcedure(regionInfo, destinationServer, forceNewPlan);<a name="line.549"></a> -<span class="sourceLineNo">550</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.550"></a> -<span class="sourceLineNo">551</span> }<a name="line.551"></a> -<span class="sourceLineNo">552</span><a name="line.552"></a> -<span class="sourceLineNo">553</span> public void move(final RegionInfo regionInfo) throws IOException {<a name="line.553"></a> -<span class="sourceLineNo">554</span> RegionStateNode node = this.regionStates.getRegionStateNode(regionInfo);<a name="line.554"></a> -<span class="sourceLineNo">555</span> ServerName sourceServer = node.getRegionLocation();<a name="line.555"></a> -<span class="sourceLineNo">556</span> RegionPlan plan = new RegionPlan(regionInfo, sourceServer, null);<a name="line.556"></a> -<span class="sourceLineNo">557</span> MoveRegionProcedure proc = createMoveRegionProcedure(plan);<a name="line.557"></a> -<span class="sourceLineNo">558</span> ProcedureSyncWait.submitAndWaitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.558"></a> -<span class="sourceLineNo">559</span> }<a name="line.559"></a> -<span class="sourceLineNo">560</span><a name="line.560"></a> -<span class="sourceLineNo">561</span> public Future<byte[]> moveAsync(final RegionPlan regionPlan) throws HBaseIOException {<a name="line.561"></a> -<span class="sourceLineNo">562</span> MoveRegionProcedure proc = createMoveRegionProcedure(regionPlan);<a name="line.562"></a> -<span class="sourceLineNo">563</span> return ProcedureSyncWait.submitProcedure(master.getMasterProcedureExecutor(), proc);<a name="line.563"></a> -<span class="sourceLineNo">564</span> }<a name="line.564"></a> -<span class="sourceLineNo">565</span><a name="line.565"></a> -<span class="sourceLineNo">566</span> @VisibleForTesting<a name="line.566"></a> -<span class="sourceLineNo">567</span> public boolean waitForAssignment(final RegionInfo regionInfo) throws IOException {<a name="line.567"></a> -<span class="sourceLineNo">568</span> return waitForAssignment(regionInfo, Long.MAX_VALUE);<a name="line.568"></a> -<span class="sourceLineNo">569</span> }<a name="line.569"></a> -<span class="sourceLineNo">570</span><a name="line.570"></a> -<span class="sourceLineNo">571</span> @VisibleForTesting<a name="line.571"></a> -<span class="sourceLineNo">572</span> // TODO: Remove this?<a name="line.572"></a> -<span class="sourceLineNo">573</span> public boolean waitForAssignment(final RegionInfo regionInfo, final long timeout)<a name="line.573"></a> -<span class="sourceLineNo">574</span> throws IOException {<a name="line.574"></a> -<span class="sourceLineNo">575</span> RegionStateNode node = null;<a name="line.575"></a> -<span class="sourceLineNo">576</span> // This method can be called before the regionInfo has made it into the regionStateMap<a name="line.576"></a> -<span class="sourceLineNo">577</span> // so wait around here a while.<a name="line.577"></a> -<span class="sourceLineNo">578</span> long startTime = System.currentTimeMillis();<a name="line.578"></a> -<span class="sourceLineNo">579</span> // Something badly wrong if takes ten seconds to register a region.<a name="line.579"></a> -<span class="sourceLineNo">580</span> long endTime = startTime + 10000;<a name="line.580"></a> -<span class="sourceLineNo">581</span> while ((node = regionStates.getRegionStateNode(regionInfo)) == null && isRunning() &&<a name="line.581"></a> -<span class="sourceLineNo">582</span> System.currentTimeMillis() < endTime) {<a name="line.582"></a> -<span class="sourceLineNo">583</span> // Presume it not yet added but will be added soon. Let it spew a lot so we can tell if<a name="line.583"></a> -<span class="sourceLineNo">584</span> // we are waiting here alot.<a name="line.584"></a> -<span class="sourceLineNo">585</span> LOG.debug("Waiting on " + regionInfo + " to be added to regionStateMap");<a name="line.585"></a> -<span class="sourceLineNo">586</span> Threads.sleep(10);<a name="line.586"></a> -<span class="sourceLineNo">587</span> }<a name="line.587"></a> -<span class="sourceLineNo">588</span> if (node == null) {<a name="line.588"></a> -<span class="sourceLineNo">589</span> if (!isRunning()) return false;<a name="line.589"></a> -<span class="sourceLineNo">590</span> throw new RegionException(regionInfo.getRegionNameAsString() + " never registered with Assigment.");<a name="line.590"></a> -<span class="sourceLineNo">591</span> }<a name="line.591"></a> -<span class="sourceLineNo">592</span><a name="line.592"></a> -<span class="sourceLineNo">593</span> RegionTransitionProcedure proc = node.getProcedure();<a name="line.593"></a> -<span class="sourceLineNo">594</span> if (proc == null) {<a name="line.594"></a> -<span class="sourceLineNo">595</span> throw new NoSuchProcedureException(node.toString());<a name="line.595"></a> -<span class="sourceLineNo">596</span> }<a name="line.596"></a> -<span class="sourceLineNo">597</span><a name="line.597"></a> -<span class="sourceLineNo">598</span> ProcedureSyncWait.waitForProcedureToCompleteIOE(<a name="line.598"></a> -<span class="sourceLineNo">599</span> master.getMasterProcedureExecutor(), proc, timeout);<a name="line.599"></a> -<span class="sourceLineNo">600</span> return true;<a name="line.600"></a> -<span class="sourceLineNo">601</span> }<a name="line.601"></a> -<span class="sourceLineNo">602</span><a name="line.602"></a> -<span class="sourceLineNo">603</span> // ============================================================================================<a name="line.603"></a> -<span class="sourceLineNo">604</span> // RegionTransition procedures helpers<a name="line.604"></a> -<span class="sourceLineNo">605</span> // ============================================================================================<a name="line.605"></a> -<span class="sourceLineNo">606</span><a name="line.606"></a> -<span class="sourceLineNo">607</span> /**<a name="line.607"></a> -<span class="sourceLineNo">608</span> * Create round-robin assigns. Use on table creation to distribute out regions across cluster.<a name="line.608"></a> -<span class="sourceLineNo">609</span> * @return AssignProcedures made out of the passed in <code>hris</code> and a call<a name="line.609"></a> -<span class="sourceLineNo">610</span> * to the balancer to populate the assigns with targets chosen using round-robin (default<a name="line.610"></a> -<span class="sourceLineNo">611</span> * balancer scheme). If at assign-time, the target chosen is no longer up, thats fine,<a name="line.611"></a> -<span class="sourceLineNo">612</span> * the AssignProcedure will ask the balancer for a new target, and so on.<a name="line.612"></a> -<span class="sourceLineNo">613</span> */<a name="line.613"></a> -<span class="sourceLineNo">614</span> public AssignProcedure[] createRoundRobinAssignProcedures(final List<RegionInfo> hris) {<a name="line.614"></a> -<span class="sourceLineNo">615</span> if (hris.isEmpty()) {<a name="line.615"></a> -<span class="sourceLineNo">616</span> return null;<a name="line.616"></a> -<span class="sourceLineNo">617</span> }<a name="line.617"></a> -<span class="sourceLineNo">618</span> try {<a name="line.618"></a> -<span class="sourceLineNo">619</span> // Ask the balancer to assign our regions. Pass the regions en masse. The balancer can do<a name="line.619"></a> -<span class="sourceLineNo">620</span> // a better job if it has all the assignments in the one lump.<a name="line.620"></a> -<span class="sourceLineNo">621</span> Map<ServerName, List<RegionInfo>> assignments = getBalancer().roundRobinAssignment(hris,<a name="line.621"></a> -<span class="sourceLineNo">622</span> this.master.getServerManager().createDestinationServersList(null));<a name="line.622"></a> -<span class="sourceLineNo">623</span> // Return mid-method!<a name="line.623"></a> -<span class="sourceLineNo">624</span> return createAssignProcedures(assignments, hris.size());<a name="line.624"></a> -<span class="sourceLineNo">625</span> } catch (HBaseIOException hioe) {<a name="line.625"></a> -<span class="sourceLineNo">626</span> LOG.warn("Failed roundRobinAssignment", hioe);<a name="line.626"></a> -<span class="sourceLineNo">627</span> }<a name="line.627"></a> -<span class="sourceLineNo">628</span> // If an error above, fall-through to this simpler assign. Last resort.<a name="line.628"></a> -<span class="sourceLineNo">629</span> return createAssignProcedures(hris);<a name="line.629"></a> -<span class="sourceLineNo">630</span> }<a name="line.630"></a> -<span class="sourceLineNo">631</span><a name="line.631"></a> -<span class="sourceLineNo">632</span> /**<a name="line.632"></a> -<span class="sourceLineNo">633</span> * Create an array of AssignProcedures w/o specifying a target server.<a name="line.633"></a> -<span class="sourceLineNo">634</span> * If no target server, at assign time, we will try to use the former location of the region<a name="line.634"></a> -<span class="sourceLineNo">635</span> * if one exists. This is how we 'retain' the old location across a server restart.<a name="line.635"></a> -<span class="sourceLineNo">636</span> * Used by {@link ServerCrashProcedure} assigning regions on a server that has crashed (SCP is<a name="line.636"></a> -<span class="sourceLineNo">637</span> * also used across a cluster-restart just-in-case to ensure we do cleanup of any old WALs or<a name="line.637"></a> -<span class="sourceLineNo">638</span> * server processes).<a name="line.638"></a> -<span class="sourceLineNo">639</span> */<a name="line.639"></a> -<span class="sourceLineNo">640</span> public AssignProcedure[] createAssignProcedures(final List<RegionInfo> hris) {<a name="line.640"></a> -<span class="sourceLineNo">641</span> if (hris.isEmpty()) {<a name="line.641"></a> -<span class="sourceLineNo">642</span> return null;<a name="line.642"></a> -<span class="sourceLineNo">643</span> }<a name="line.643"></a> -<span class="sourceLineNo">644</span> int index = 0;<a name="line.644"></a> -<span class="sourceLineNo">645</span> AssignProcedure [] procedures = new AssignProcedure[hris.size()];<a name="line.645"></a> -<span class="sourceLineNo">646</span> for (RegionInfo hri : hris) {<a name="line.646"></a> -<span class="sourceLineNo">647</span> // Sort the procedures so meta and system regions are first in the returned array.<a name="line.647"></a> -<span class="sourceLineNo">648</span> procedures[index++] = createAssignProcedure(hri);<a name="line.648"></a> -<span class="sourceLineNo">649</span> }<a name="line.649"></a> -<span class="sourceLineNo">650</span> if (procedures.length > 1) {<a name="line.650"></a> -<span class="sourceLineNo">651</span> // Sort the procedures so meta and system regions are first in the returned array.<a name="line.651"></a> -<span class="sourceLineNo">652</span> Arrays.sort(procedures, AssignProcedure.COMPARATOR);<a name="line.652"></a> -<span class="sourceLineNo">653</span> }<a name="line.653"></a> -<span class="sourceLineNo">654</span> return procedures;<a name="line.654"></a> -<span class="sourceLineNo">655</span> }<a name="line.655"></a> -<span class="sourceLineNo">656</span><a name="line.656"></a> -<span class="sourceLineNo">657</span> // Make this static for the method below where we use it typing the AssignProcedure array we<a name="line.657"></a> -<span class="sourceLineNo">658</span> // return as result.<a name="line.658"></a> -<span class="sourceLineNo">659</span> private static final AssignProcedure [] ASSIGN_PROCEDURE_ARRAY_TYPE = new AssignProcedure[] {};<a name="line.659"></a> -<span class="sourceLineNo">660</span><a name="line.660"></a> -<span class="sourceLineNo">661</span> /**<a name="line.661"></a> -<span class="sourceLineNo">662</span> * @param assignments Map of assignments from which we produce an array of AssignProcedures.<a name="line.662"></a> -<span class="sourceLineNo">663</span> * @param size Count of assignments to make (the caller may know the total count)<a name="line.663"></a> -<span class="sourceLineNo">664</span> * @return Assignments made from the passed in <code>assignments</code><a name="line.664"></a> -<span class="sourceLineNo">665</span> */<a name="line.665"></a> -<span class="sourceLineNo">666</span> private AssignProcedure[] createAssignProcedures(Map<ServerName, List<RegionInfo>> assignments,<a name="line.666"></a> -<span class="sourceLineNo">667</span> int size) {<a name="line.667"></a> -<span class="sourceLineNo">668</span> List<AssignProcedure> procedures = new ArrayList<>(size > 0? size: 8/*Arbitrary*/);<a name="line.668"></a> -<span class="sourceLineNo">669</span> for (Map.Entry<ServerName, List<RegionInfo>> e: assignments.entrySet()) {<a name="line.669"></a> -<span class="sourceLineNo">670</span> for (RegionInfo ri: e.getValue()) {<a name="line.670"></a> -<span class="sourceLineNo">671</span> AssignProcedure ap = createAssignProcedure(ri, e.getKey());<a name="line.671"></a> -<span class="sourceLineNo">672</span> ap.setOwner(getProcedureEnvironment().getRequestUser().getShortName());<a name="line.672"></a> -<span class="sourceLineNo">673</span> procedures.add(ap);<a name="line.673"></a> -<span class="sourceLineNo">674</span> }<a name="line.674"></a> -<span class="sourceLineNo">675</span> }<a name="line.675"></a> -<span class="sourceLineNo">676</span> if (procedures.size() > 1) {<a name="line.676"></a> -<span class="sourceLineNo">677</span> // Sort the procedures so meta and system regions are first in the returned array.<a name="line.677"></a> -<span class="sourceLineNo">678</span> procedures.sort(AssignProcedure.COMPARATOR);<a name="line.678"></a> -<span class="sourceLineNo">679</span> }<a name="line.679"></a> -<span class="sourceLineNo">680</span> return procedures.toArray(ASSIGN_PROCEDURE_ARRAY_TYPE);<a name="line.680"></a> -<span class="sourceLineNo">681</span> }<a name="line.681"></a> -<span class="sourceLineNo">682</span><a name="line.682"></a> -<span class="sourceLineNo">683</span> // Needed for the following method so it can type the created Array we retur n<a name="line.683"></a> -<span class="sourceLineNo">684</span> private static final UnassignProcedure [] UNASSIGN_PROCEDURE_ARRAY_TYPE =<a name="line.684"></a> -<span class="sourceLineNo">685</span> new UnassignProcedure[0];<a name="line.685"></a> -<span class="sourceLineNo">686</span><a name="line.686"></a> -<span class="sourceLineNo">687</span> UnassignProcedure[] createUnassignProcedures(final Collection<RegionStateNode> nodes) {<a name="line.687"></a> -<span class="sourceLineNo">688</span> if (nodes.isEmpty()) return null;<a name="line.688"></a> -<span class="sourceLineNo">689</span> final List<UnassignProcedure> procs = new ArrayList<UnassignProcedure>(nodes.size());<a name="line.689"></a> -<span class="sourceLineNo">690</span> for (RegionStateNode node: nodes) {<a name="line.690"></a> -<span class="sourceLineNo">691</span> if (!this.regionStates.include(node, false)) continue;<a name="line.691"></a> -<span class="sourceLineNo">692</span> // Look for regions that are offline/closed; i.e. already unassigned.<a name="line.692"></a> -<span class="sourceLineNo">693</span> if (this.regionStates.isRegionOffline(node.getRegionInfo())) continue;<a name="line.693"></a> -<span class="sourceLineNo">694</span> assert node.getRegionLocation() != null: node.toString();<a name="line.694"></a> -<span class="sourceLineNo">695</span> procs.add(createUnassignProcedure(node.getRegionInfo(), node.getRegionLocation(), false));<a name="line.695"></a> -<span class="sourceLineNo">696</span> }<a name="line.696"></a> -<span class="sourceLineNo">697</span> return procs.toArray(UNASSIGN_PROCEDURE_ARRAY_TYPE);<a name="line.697"></a> -<span class="sourceLineNo">698</span> }<a name="line.698"></a> -<span class="sourceLineNo">699</span><a name="line.699"></a> -<span class="sourceLineNo">700</span> public MoveRegionProcedure[] createReopenProcedures(final Collection<RegionInfo> regionInfo)<a name="line.700"></a> -<span class="sourceLineNo">701</span> throws IOException {<a name="line.701"></a> -<span class="sourceLineNo">702</span> final MoveRegionProcedure[] procs = new MoveRegionProcedure[regionInfo.size()];<a name="line.702"></a> -<span class="sourceLineNo">703</span> int index = 0;<a name="line.703"></a> -<span class="sourceLineNo">704</span> for (RegionInfo hri: regionInfo) {<a name="line.704"></a> -<span class="sourceLineNo">705</span> final ServerName serverName = regionStates.getRegionServerOfRegion(hri);<a name="line.705"></a> -<span class="sourceLineNo">706</span> final RegionPlan plan = new RegionPlan(hri, serverName, serverName);<a name="line.706"></a> -<span class="sourceLineNo">707</span> procs[index++] = createMoveRegionProcedure(plan);<a name="line.707"></a> -<span class="sourceLineNo">708</span> }<a name="line.708"></a> -<span class="sourceLineNo">709</span> return procs;<a name="line.709"></a> -<span class="sourceLineNo">710</span> }<a name="line.710"></a> -<span class="sourceLineNo">711</span><a name="line.711"></a> -<span class="sourceLineNo">712</span> /**<a name="line.712"></a> -<span class="sourceLineNo">713</span> * Called by things like DisableTableProcedure to get a list of UnassignProcedure<a name="line.713"></a> -<span class="sourceLineNo">714</span> * to unassign the regions of the table.<a name="line.714"></a> -<span class="sourceLineNo">715</span> */<a name="line.715"></a> -<span class="sourceLineNo">716</span> public UnassignProcedure[] createUnassignProcedures(final TableName tableName) {<a name="line.716"></a> -<span class="sourceLineNo">717</span> return createUnassignProcedures(regionStates.getTableRegionStateNodes(tableName));<a name="line.717"></a> -<span class="sourceLineNo">718</span> }<a name="line.718"></a> -<span class="sourceLineNo">719</span><a name="line.719"></a> -<span class="sourceLineNo">720</span> public AssignProcedure createAssignProcedure(final RegionInfo regionInfo) {<a name="line.720"></a> -<span class="sourceLineNo">721</span> AssignProcedure proc = new AssignProcedure(regionInfo);<a name="line.721"></a> -<span class="sourceLineNo">722</span> proc.setOwner(getProcedureEnvironment().getRequestUser().getShortName());<a name="line.722"></a> -<span class="sourceLineNo">723</span> return proc;<a name="line.723"></a> -<span class="sourceLineNo">724</span> }<a name="line.724"></a> -<span class="sourceLineNo">725</span><a name="line.725"></a> -<span class="sourceLineNo">726</span> public AssignProcedure createAssignProcedure(final RegionInfo regionInfo,<a name="line.726"></a> -<span class="sourceLineNo">727</span> final ServerName targetServer) {<a name="line.727"></a> -<span class="sourceLineNo">728</span> AssignProcedure proc = new AssignProcedure(regionInfo, targetServer);<a name="line.728"></a> -<span class="sourceLineNo">729</span> proc.setOwner(getProcedureEnvironment().getRequestUser().getShortName());<a name="line.729"></a> -<span class="sourceLineNo">730</span> return proc;<a name="line.730"></a> -<span class="sourceLineNo">731</span> }<a name="line.731"></a> -<span class="sourceLineNo">732</span><a name="line.732"></a> -<span class="sourceLineNo">733</span> UnassignProcedure createUnassignProcedure(final RegionInfo regionInfo,<a name="line.733"></a> -<span class="sourceLineNo">734</span> final ServerName destinationServer, final boolean force) {<a name="line.734"></a> -<span class="sourceLineNo">735</span> return createUnassignProcedure(regionInfo, destinationServer, force, false);<a name="line.735"></a> -<span class="sourceLineNo">736</span> }<a name="line.736"></a> -<span class="sourceLineNo">737</span><a name="line.737"></a> -<span class="sourceLineNo">738</span> UnassignProcedure createUnassignProcedure(final RegionInfo regionInfo,<a name="line.738"></a> -<span class="sourceLineNo">739</span> final ServerName destinationServer, final boolean force,<a name="line.739"></a> -<span class="sourceLineNo">740</span> final boolean removeAfterUnassigning) {<a name="line.740"></a> -<span class="sourceLineNo">741</span> // If destinationServer is null, figure it.<a name="line.741"></a> -<span class="sourceLineNo">742</span> ServerName sn = destinationServer != null? destinationServer:<a name="line.742"></a> -<span class="sourceLineNo">743</span> getRegionStates().getRegionState(regionInfo).getServerName();<a name="line.743"></a> -<span class="sourceLineNo">744</span> assert sn != null;<a name="line.744"></a> -<span class="sourceLineNo">745</span> UnassignProcedure proc = new UnassignProcedure(regionInfo, sn, force, removeAfterUnassigning);<a name="line.745"></a> -<span class="sourceLineNo">746</span> proc.setOwner(getProcedureEnvironment().getRequestUser().getShortName());<a name="line.746"></a> -<span class="sourceLineNo">747</span> return proc;<a name="line.747"></a> -<span class="sourceLineNo">748</span> }<a name="line.748"></a> -<span class="sourceLineNo">749</span><a name="line.749"></a> -<span class="sourceLineNo">750</span> public MoveRegionProcedure createMoveRegionProcedure(final RegionPlan plan)<a name="line.750"></a> -<span class="sourceLineNo">751</span> throws HBaseIOException {<a name="line.751"></a> -<span class="sourceLineNo">752</span> if (plan.getRegionInfo().getTable().isSystemTable()) {<a name="line.752"></a> -<span class="sourceLineNo">753</span> List<ServerName> exclude = getExcludedServersForSystemTable();<a name="line.753"></a> -<span class="sourceLineNo">754</span> if (plan.getDestination() != null && exclude.contains(plan.getDestination())) {<a name="line.754"></a> -<span class="sourceLineNo">755</span> try {<a name="line.755"></a> -<span class="sourceLineNo">756</span> LOG.info("Can not move " + plan.getRegionInfo() + " to " + plan.getDestination()<a name="line.756"></a> -<span class="sourceLineNo">757</span> + " because the server is not with highest version");<a name="line.757"></a> -<span class="sourceLineNo">758</span> plan.setDestination(getBalancer().randomAssignment(plan.getRegionInfo(),<a name="line.758"></a> -<span class="sourceLineNo">759</span> this.master.getServerManager().createDestinationServersList(exclude)));<a name="line.759"></a> -<span class="sourceLineNo">760</span> } catch (HBaseIOException e) {<a name="line.760"></a> -<span class="sourceLineNo">761</span> LOG.warn(e.toString(), e);<a name="line.761"></a> -<span class="sourceLineNo">762</span> }<a name="line.762"></a> -<span class="sourceLineNo">763</span> }<a name="line.763"></a> -<span class="sourceLineNo">764</span> }<a name="line.764"></a> -<span class="sourceLineNo">765</span> return new MoveRegionProcedure(getProcedureEnvironment(), plan);<a name="line.765"></a> -<span class="sourceLineNo">766</span> }<a name="line.766"></a> -<span class="sourceLineNo">767</span><a name="line.767"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.conf.Configuration;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.HConstants;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.PleaseHoldException;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.RegionException;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.RegionStateListener;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.ServerName;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.TableName;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.YouAreDeadException;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.Result;<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.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>import org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer;<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.ServerCrashException;<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.regionserver.SequenceId;<a name="line.80"></a> +<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.81"></a> +<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.82"></a> +<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.util.HasThread;<a name="line.83"></a> +<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.84"></a> +<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.85"></a> +<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.util.VersionInfo;<a name="line.86"></a> +<span class="sourceLineNo">087</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.87"></a> +<span class="sourceLineNo">088</span>import org.slf4j.Logger;<a name="line.88"></a> +<span class="sourceLineNo">089</span>import org.slf4j.LoggerFactory;<a name="line.89"></a> +<span class="sourceLineNo">090</span><a name="line.90"></a> +<span class="sourceLineNo">091</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.93"></a> +<span class="sourceLineNo">094</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RegionTransitionState;<a name="line.94"></a> +<span class="sourceLineNo">095</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.95"></a> +<span class="sourceLineNo">096</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.96"></a> +<span class="sourceLineNo">097</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionRequest;<a name="line.97"></a> +<span class="sourceLineNo">098</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RegionServerStatusProtos.ReportRegionStateTransitionResponse;<a name="line.98"></a> +<span class="sourceLineNo">099</span><a name="line.99"></a> +<span class="sourceLineNo">100</span>/**<a name="line.100"></a> +<span class="sourceLineNo">101</span> * The AssignmentManager is the coordinator for region assign/unassign operations.<a name="line.101"></a> +<span class="sourceLineNo">102</span> * <ul><a name="line.102"></a> +<span class="sourceLineNo">103</span> * <li>In-memory states of regions and servers are stored in {@link RegionStates}.</li><a name="line.103"></a> +<span class="sourceLineNo">104</span> * <li>hbase:meta state updates are handled by {@link RegionStateStore}.</li><a name="line.104"></a> +<span class="sourceLineNo">105</span> * </ul><a name="line.105"></a> +<span class="sourceLineNo">106</span> * Regions are created by CreateTable, Split, Merge.<a name="line.106"></a> +<span class="sourceLineNo">107</span> * Regions are deleted by DeleteTable, Split, Merge.<a name="line.107"></a> +<span class="sourceLineNo">108</span> * Assigns are triggered by CreateTable, EnableTable, Split, Merge, ServerCrash.<a name="line.108"></a> +<span class="sourceLineNo">109</span> * Unassigns are triggered by DisableTable, Split, Merge<a name="line.109"></a> +<span class="sourceLineNo">110</span> */<a name="line.110"></a> +<span class="sourceLineNo">111</span>@InterfaceAudience.Private<a name="line.111"></a> +<span class="sourceLineNo">112</span>public class AssignmentManager implements ServerListener {<a name="line.112"></a> +<span class="sourceLineNo">113</span> private static final Logger LOG = LoggerFactory.getLogger(AssignmentManager.class);<a name="line.113"></a> +<span class="sourceLineNo">114</span><a name="line.114"></a> +<span class="sourceLineNo">115</span> // TODO: AMv2<a name="line.115"></a> +<span class="sourceLineNo">116</span> // - handle region migration from hbase1 to hbase2.<a name="line.116"></a> +<span class="sourceLineNo">117</span> // - handle sys table assignment first (e.g. acl, namespace)<a name="line.117"></a> +<span class="sourceLineNo">118</span> // - handle table priorities<a name="line.118"></a> +<span class="sourceLineNo">119</span> // - If ServerBusyException trying to update hbase:meta, we abort the Master<a name="line.119"></a> +<span class="sourceLineNo">120</span> // See updateRegionLocation in RegionStateStore.<a name="line.120"></a> +<span class="sourceLineNo">121</span> //<a name="line.121"></a> +<span class="sourceLineNo">122</span> // See also<a name="line.122"></a> +<span class="sourceLineNo">123</span> // https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.ystjyrkbtoq5<a name="line.123"></a> +<span class="sourceLineNo">124</span> // for other TODOs.<a name="line.124"></a> +<span class="sourceLineNo">125</span><a name="line.125"></a> +<span class="sourceLineNo">126</span> public static final String BOOTSTRAP_THREAD_POOL_SIZE_CONF_KEY =<a name="line.126"></a> +<span class="sourceLineNo">127</span> "hbase.assignment.bootstrap.thread.pool.size";<a name="line.127"></a> +<span class="sourceLineNo">128</span><a name="line.128"></a> +<span class="sourceLineNo">129</span> public static final String ASSIGN_DISPATCH_WAIT_MSEC_CONF_KEY =<a name="line.129"></a> +<span class="sourceLineNo">130</span> "hbase.assignment.dispatch.wait.msec";<a name="line.130"></a> +<span class="sourceLineNo">131</span> private static final int DEFAULT_ASSIGN_DISPATCH_WAIT_MSEC = 150;<a name="line.131"></a> +<span class="sourceLineNo">132</span><a name="line.132"></a> +<span class="sourceLineNo">133</span> public static final String ASSIGN_DISPATCH_WAITQ_MAX_CONF_KEY =<a name="line.133"></a> +<span class="sourceLineNo">134</span> "hbase.assignment.dispatch.wait.queue.max.size";<a name="line.134"></a> +<span class="sourceLineNo">135</span> private static final int DEFAULT_ASSIGN_DISPATCH_WAITQ_MAX = 100;<a name="line.135"></a> +<span class="sourceLineNo">136</span><a name="line.136"></a> +<span class="sourceLineNo">137</span> public static final String RIT_CHORE_INTERVAL_MSEC_CONF_KEY =<a name="line.137"></a> +<span class="sourceLineNo">138</span> "hbase.assignment.rit.chore.interval.msec";<a name="line.138"></a> +<span class="sourceLineNo">139</span> private static final int DEFAULT_RIT_CHORE_INTERVAL_MSEC = 5 * 1000;<a name="line.139"></a> +<span class="sourceLineNo">140</span><a name="line.140"></a> +<span class="sourceLineNo">141</span> public static final String ASSIGN_MAX_ATTEMPTS =<a name="line.141"></a> +<span class="sourceLineNo">142</span> "hbase.assignment.maximum.attempts";<a name="line.142"></a> +<span class="sourceLineNo">143</span> private static final int DEFAULT_ASSIGN_MAX_ATTEMPTS = 10;<a name="line.143"></a> +<span class="sourceLineNo">144</span><a name="line.144"></a> +<span class="sourceLineNo">145</span> /** Region in Transition metrics threshold time */<a name="line.145"></a> +<span class="sourceLineNo">146</span> public static final String METRICS_RIT_STUCK_WARNING_THRESHOLD =<a name="line.146"></a> +<span class="sourceLineNo">147</span> "hbase.metrics.rit.stuck.warning.threshold";<a name="line.147"></a> +<span class="sourceLineNo">148</span> private static final int DEFAULT_RIT_STUCK_WARNING_THRESHOLD = 60 * 1000;<a name="line.148"></a> +<span class="sourceLineNo">149</span><a name="line.149"></a> +<span class="sourceLineNo">150</span> private final ProcedureEvent<?> me
<TRUNCATED>
