You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by mi...@apache.org on 2016/02/19 20:26:59 UTC
[09/15] hbase-site git commit: Published site at
8eedc967515a4d9133068962fe029160d24e6f95.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f564c619/devapidocs/src-html/org/apache/hadoop/hbase/master/AssignmentManager.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/AssignmentManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/AssignmentManager.html
index addaeb1..96c4e73 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/AssignmentManager.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/AssignmentManager.html
@@ -26,2906 +26,2948 @@
<span class="sourceLineNo">018</span> */<a name="line.18"></a>
<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.master;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.util.Collection;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.Collections;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.HashMap;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import java.util.HashSet;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import java.util.Iterator;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.NavigableMap;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.Random;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.Set;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.TreeMap;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.concurrent.Callable;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import java.util.concurrent.TimeUnit;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import java.util.concurrent.locks.Lock;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.41"></a>
-<span class="sourceLineNo">042</span><a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.commons.logging.Log;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.commons.logging.LogFactory;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.conf.Configuration;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.fs.FileSystem;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.fs.Path;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.CoordinatedStateException;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.HConstants;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.NotServingRegionException;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.RegionStateListener;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.ServerName;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.TableName;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.client.Result;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.executor.EventHandler;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.executor.EventType;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.executor.ExecutorService;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.ipc.FailedServerException;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.ipc.RpcClient;<a name="line.69"></a>
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-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.master.balancer.FavoredNodeAssignmentHelper;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.master.balancer.FavoredNodeLoadBalancer;<a name="line.73"></a>
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-<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan.PlanType;<a name="line.76"></a>
-<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.77"></a>
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-<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.regionserver.RegionOpeningState;<a name="line.80"></a>
-<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.regionserver.RegionServerAbortedException;<a name="line.81"></a>
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-<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.85"></a>
-<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.util.KeyLocker;<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.PairOfSameType;<a name="line.88"></a>
-<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.89"></a>
-<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>import org.apache.hadoop.util.StringUtils;<a name="line.92"></a>
-<span class="sourceLineNo">093</span>import org.apache.zookeeper.KeeperException;<a name="line.93"></a>
-<span class="sourceLineNo">094</span><a name="line.94"></a>
-<span class="sourceLineNo">095</span>import com.google.common.annotations.VisibleForTesting;<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span>/**<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * Manages and performs region assignment.<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * Related communications with regionserver are all done over RPC.<a name="line.99"></a>
-<span class="sourceLineNo">100</span> */<a name="line.100"></a>
-<span class="sourceLineNo">101</span>@InterfaceAudience.Private<a name="line.101"></a>
-<span class="sourceLineNo">102</span>public class AssignmentManager {<a name="line.102"></a>
-<span class="sourceLineNo">103</span> private static final Log LOG = LogFactory.getLog(AssignmentManager.class);<a name="line.103"></a>
-<span class="sourceLineNo">104</span><a name="line.104"></a>
-<span class="sourceLineNo">105</span> protected final MasterServices server;<a name="line.105"></a>
-<span class="sourceLineNo">106</span><a name="line.106"></a>
-<span class="sourceLineNo">107</span> private ServerManager serverManager;<a name="line.107"></a>
-<span class="sourceLineNo">108</span><a name="line.108"></a>
-<span class="sourceLineNo">109</span> private boolean shouldAssignRegionsWithFavoredNodes;<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span> private LoadBalancer balancer;<a name="line.111"></a>
-<span class="sourceLineNo">112</span><a name="line.112"></a>
-<span class="sourceLineNo">113</span> private final MetricsAssignmentManager metricsAssignmentManager;<a name="line.113"></a>
-<span class="sourceLineNo">114</span><a name="line.114"></a>
-<span class="sourceLineNo">115</span> private final TableLockManager tableLockManager;<a name="line.115"></a>
-<span class="sourceLineNo">116</span><a name="line.116"></a>
-<span class="sourceLineNo">117</span> private AtomicInteger numRegionsOpened = new AtomicInteger(0);<a name="line.117"></a>
-<span class="sourceLineNo">118</span><a name="line.118"></a>
-<span class="sourceLineNo">119</span> final private KeyLocker<String> locker = new KeyLocker<String>();<a name="line.119"></a>
-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span> Set<HRegionInfo> replicasToClose = Collections.synchronizedSet(new HashSet<HRegionInfo>());<a name="line.121"></a>
-<span class="sourceLineNo">122</span><a name="line.122"></a>
-<span class="sourceLineNo">123</span> /**<a name="line.123"></a>
-<span class="sourceLineNo">124</span> * Map of regions to reopen after the schema of a table is changed. Key -<a name="line.124"></a>
-<span class="sourceLineNo">125</span> * encoded region name, value - HRegionInfo<a name="line.125"></a>
-<span class="sourceLineNo">126</span> */<a name="line.126"></a>
-<span class="sourceLineNo">127</span> private final Map <String, HRegionInfo> regionsToReopen;<a name="line.127"></a>
-<span class="sourceLineNo">128</span><a name="line.128"></a>
-<span class="sourceLineNo">129</span> /*<a name="line.129"></a>
-<span class="sourceLineNo">130</span> * Maximum times we recurse an assignment/unassignment.<a name="line.130"></a>
-<span class="sourceLineNo">131</span> * See below in {@link #assign()} and {@link #unassign()}.<a name="line.131"></a>
-<span class="sourceLineNo">132</span> */<a name="line.132"></a>
-<span class="sourceLineNo">133</span> private final int maximumAttempts;<a name="line.133"></a>
-<span class="sourceLineNo">134</span><a name="line.134"></a>
-<span class="sourceLineNo">135</span> /**<a name="line.135"></a>
-<span class="sourceLineNo">136</span> * The sleep time for which the assignment will wait before retrying in case of<a name="line.136"></a>
-<span class="sourceLineNo">137</span> * hbase:meta assignment failure due to lack of availability of region plan or bad region plan<a name="line.137"></a>
-<span class="sourceLineNo">138</span> */<a name="line.138"></a>
-<span class="sourceLineNo">139</span> private final long sleepTimeBeforeRetryingMetaAssignment;<a name="line.139"></a>
-<span class="sourceLineNo">140</span><a name="line.140"></a>
-<span class="sourceLineNo">141</span> /** Plans for region movement. Key is the encoded version of a region name*/<a name="line.141"></a>
-<span class="sourceLineNo">142</span> // TODO: When do plans get cleaned out? Ever? In server open and in server<a name="line.142"></a>
-<span class="sourceLineNo">143</span> // shutdown processing -- St.Ack<a name="line.143"></a>
-<span class="sourceLineNo">144</span> // All access to this Map must be synchronized.<a name="line.144"></a>
-<span class="sourceLineNo">145</span> final NavigableMap<String, RegionPlan> regionPlans =<a name="line.145"></a>
-<span class="sourceLineNo">146</span> new TreeMap<String, RegionPlan>();<a name="line.146"></a>
-<span class="sourceLineNo">147</span><a name="line.147"></a>
-<span class="sourceLineNo">148</span> private final TableStateManager tableStateManager;<a name="line.148"></a>
-<span class="sourceLineNo">149</span><a name="line.149"></a>
-<span class="sourceLineNo">150</span> private final ExecutorService executorService;<a name="line.150"></a>
-<span class="sourceLineNo">151</span><a name="line.151"></a>
-<span class="sourceLineNo">152</span> // Thread pool executor service. TODO, consolidate with executorService?<a name="line.152"></a>
-<span class="sourceLineNo">153</span> private java.util.concurrent.ExecutorService threadPoolExecutorService;<a name="line.153"></a>
-<span class="sourceLineNo">154</span><a name="line.154"></a>
-<span class="sourceLineNo">155</span> private final RegionStates regionStates;<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span> // The threshold to use bulk assigning. Using bulk assignment<a name="line.157"></a>
-<span class="sourceLineNo">158</span> // only if assigning at least this many regions to at least this<a name="line.158"></a>
-<span class="sourceLineNo">159</span> // many servers. If assigning fewer regions to fewer servers,<a name="line.159"></a>
-<span class="sourceLineNo">160</span> // bulk assigning may be not as efficient.<a name="line.160"></a>
-<span class="sourceLineNo">161</span> private final int bulkAssignThresholdRegions;<a name="line.161"></a>
-<span class="sourceLineNo">162</span> private final int bulkAssignThresholdServers;<a name="line.162"></a>
-<span class="sourceLineNo">163</span> private final int bulkPerRegionOpenTimeGuesstimate;<a name="line.163"></a>
-<span class="sourceLineNo">164</span><a name="line.164"></a>
-<span class="sourceLineNo">165</span> // Should bulk assignment wait till all regions are assigned,<a name="line.165"></a>
-<span class="sourceLineNo">166</span> // or it is timed out? This is useful to measure bulk assignment<a name="line.166"></a>
-<span class="sourceLineNo">167</span> // performance, but not needed in most use cases.<a name="line.167"></a>
-<span class="sourceLineNo">168</span> private final boolean bulkAssignWaitTillAllAssigned;<a name="line.168"></a>
-<span class="sourceLineNo">169</span><a name="line.169"></a>
-<span class="sourceLineNo">170</span> /**<a name="line.170"></a>
-<span class="sourceLineNo">171</span> * Indicator that AssignmentManager has recovered the region states so<a name="line.171"></a>
-<span class="sourceLineNo">172</span> * that ServerShutdownHandler can be fully enabled and re-assign regions<a name="line.172"></a>
-<span class="sourceLineNo">173</span> * of dead servers. So that when re-assignment happens, AssignmentManager<a name="line.173"></a>
-<span class="sourceLineNo">174</span> * has proper region states.<a name="line.174"></a>
-<span class="sourceLineNo">175</span> *<a name="line.175"></a>
-<span class="sourceLineNo">176</span> * Protected to ease testing.<a name="line.176"></a>
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-<span class="sourceLineNo">178</span> protected final AtomicBoolean failoverCleanupDone = new AtomicBoolean(false);<a name="line.178"></a>
-<span class="sourceLineNo">179</span><a name="line.179"></a>
-<span class="sourceLineNo">180</span> /**<a name="line.180"></a>
-<span class="sourceLineNo">181</span> * A map to track the count a region fails to open in a row.<a name="line.181"></a>
-<span class="sourceLineNo">182</span> * So that we don't try to open a region forever if the failure is<a name="line.182"></a>
-<span class="sourceLineNo">183</span> * unrecoverable. We don't put this information in region states<a name="line.183"></a>
-<span class="sourceLineNo">184</span> * because we don't expect this to happen frequently; we don't<a name="line.184"></a>
-<span class="sourceLineNo">185</span> * want to copy this information over during each state transition either.<a name="line.185"></a>
-<span class="sourceLineNo">186</span> */<a name="line.186"></a>
-<span class="sourceLineNo">187</span> private final ConcurrentHashMap<String, AtomicInteger><a name="line.187"></a>
-<span class="sourceLineNo">188</span> failedOpenTracker = new ConcurrentHashMap<String, AtomicInteger>();<a name="line.188"></a>
-<span class="sourceLineNo">189</span><a name="line.189"></a>
-<span class="sourceLineNo">190</span> // In case not using ZK for region assignment, region states<a name="line.190"></a>
-<span class="sourceLineNo">191</span> // are persisted in meta with a state store<a name="line.191"></a>
-<span class="sourceLineNo">192</span> private final RegionStateStore regionStateStore;<a name="line.192"></a>
-<span class="sourceLineNo">193</span><a name="line.193"></a>
-<span class="sourceLineNo">194</span> /**<a name="line.194"></a>
-<span class="sourceLineNo">195</span> * For testing only! Set to true to skip handling of split.<a name="line.195"></a>
-<span class="sourceLineNo">196</span> */<a name="line.196"></a>
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-<span class="sourceLineNo">199</span><a name="line.199"></a>
-<span class="sourceLineNo">200</span> /** Listeners that are called on assignment events. */<a name="line.200"></a>
-<span class="sourceLineNo">201</span> private List<AssignmentListener> listeners = new CopyOnWriteArrayList<AssignmentListener>();<a name="line.201"></a>
-<span class="sourceLineNo">202</span><a name="line.202"></a>
-<span class="sourceLineNo">203</span> private RegionStateListener regionStateListener;<a name="line.203"></a>
-<span class="sourceLineNo">204</span><a name="line.204"></a>
-<span class="sourceLineNo">205</span> /**<a name="line.205"></a>
-<span class="sourceLineNo">206</span> * Constructs a new assignment manager.<a name="line.206"></a>
-<span class="sourceLineNo">207</span> *<a name="line.207"></a>
-<span class="sourceLineNo">208</span> * @param server instance of HMaster this AM running inside<a name="line.208"></a>
-<span class="sourceLineNo">209</span> * @param serverManager serverManager for associated HMaster<a name="line.209"></a>
-<span class="sourceLineNo">210</span> * @param balancer implementation of {@link LoadBalancer}<a name="line.210"></a>
-<span class="sourceLineNo">211</span> * @param service Executor service<a name="line.211"></a>
-<span class="sourceLineNo">212</span> * @param metricsMaster metrics manager<a name="line.212"></a>
-<span class="sourceLineNo">213</span> * @param tableLockManager TableLock manager<a name="line.213"></a>
-<span class="sourceLineNo">214</span> * @throws IOException<a name="line.214"></a>
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-<span class="sourceLineNo">216</span> public AssignmentManager(MasterServices server, ServerManager serverManager,<a name="line.216"></a>
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-<span class="sourceLineNo">219</span> final TableLockManager tableLockManager,<a name="line.219"></a>
-<span class="sourceLineNo">220</span> final TableStateManager tableStateManager)<a name="line.220"></a>
-<span class="sourceLineNo">221</span> throws IOException {<a name="line.221"></a>
-<span class="sourceLineNo">222</span> this.server = server;<a name="line.222"></a>
-<span class="sourceLineNo">223</span> this.serverManager = serverManager;<a name="line.223"></a>
-<span class="sourceLineNo">224</span> this.executorService = service;<a name="line.224"></a>
-<span class="sourceLineNo">225</span> this.regionStateStore = new RegionStateStore(server);<a name="line.225"></a>
-<span class="sourceLineNo">226</span> this.regionsToReopen = Collections.synchronizedMap<a name="line.226"></a>
-<span class="sourceLineNo">227</span> (new HashMap<String, HRegionInfo> ());<a name="line.227"></a>
-<span class="sourceLineNo">228</span> Configuration conf = server.getConfiguration();<a name="line.228"></a>
-<span class="sourceLineNo">229</span> // Only read favored nodes if using the favored nodes load balancer.<a name="line.229"></a>
-<span class="sourceLineNo">230</span> this.shouldAssignRegionsWithFavoredNodes = conf.getClass(<a name="line.230"></a>
-<span class="sourceLineNo">231</span> HConstants.HBASE_MASTER_LOADBALANCER_CLASS, Object.class).equals(<a name="line.231"></a>
-<span class="sourceLineNo">232</span> FavoredNodeLoadBalancer.class);<a name="line.232"></a>
-<span class="sourceLineNo">233</span><a name="line.233"></a>
-<span class="sourceLineNo">234</span> this.tableStateManager = tableStateManager;<a name="line.234"></a>
-<span class="sourceLineNo">235</span><a name="line.235"></a>
-<span class="sourceLineNo">236</span> // This is the max attempts, not retries, so it should be at least 1.<a name="line.236"></a>
-<span class="sourceLineNo">237</span> this.maximumAttempts = Math.max(1,<a name="line.237"></a>
-<span class="sourceLineNo">238</span> this.server.getConfiguration().getInt("hbase.assignment.maximum.attempts", 10));<a name="line.238"></a>
-<span class="sourceLineNo">239</span> this.sleepTimeBeforeRetryingMetaAssignment = this.server.getConfiguration().getLong(<a name="line.239"></a>
-<span class="sourceLineNo">240</span> "hbase.meta.assignment.retry.sleeptime", 1000l);<a name="line.240"></a>
-<span class="sourceLineNo">241</span> this.balancer = balancer;<a name="line.241"></a>
-<span class="sourceLineNo">242</span> int maxThreads = conf.getInt("hbase.assignment.threads.max", 30);<a name="line.242"></a>
-<span class="sourceLineNo">243</span> this.threadPoolExecutorService = Threads.getBoundedCachedThreadPool(<a name="line.243"></a>
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-<span class="sourceLineNo">490</span> Path splitDir = logDir.suffix(DefaultWALProvider.SPLITTING_EXT);<a name="line.490"></a>
-<span class="sourceLineNo">491</span> if (fs.exists(logDir) || fs.exists(splitDir)) {<a name="line.491"></a>
-<span class="sourceLineNo">492</span> LOG.debug("Found queued dead server " + serverName);<a name="line.492"></a>
-<span class="sourceLineNo">493</span> failover = true;<a name="line.493"></a>
-<span class="sourceLineNo">494</span> break;<a name="line.494"></a>
-<span class="sourceLineNo">495</span> }<a name="line.495"></a>
-<span class="sourceLineNo">496</span> }<a name="line.496"></a>
-<span class="sourceLineNo">497</span> if (!failover) {<a name="line.497"></a>
-<span class="sourceLineNo">498</span> // We figured that it's not a failover, so no need to<a name="line.498"></a>
-<span class="sourceLineNo">499</span> // work on these re-queued dead servers any more.<a name="line.499"></a>
-<span class="sourceLineNo">500</span> LOG.info("AM figured that it's not a failover and cleaned up "<a name="line.500"></a>
-<span class="sourceLineNo">501</span> + queuedDeadServers.size() + " queued dead servers");<a name="line.501"></a>
-<span class="sourceLineNo">502</span> serverManager.removeRequeuedDeadServers();<a name="line.502"></a>
-<span class="sourceLineNo">503</span> }<a name="line.503"></a>
-<span class="sourceLineNo">504</span> }<a name="line.504"></a>
-<span class="sourceLineNo">505</span> }<a name="line.505"></a>
-<span class="sourceLineNo">506</span><a name="line.506"></a>
-<span class="sourceLineNo">507</span> Set<TableName> disabledOrDisablingOrEnabling = null;<a name="line.507"></a>
-<span class="sourceLineNo">508</span> Map<HRegionInfo, ServerName> allRegions = null;<a name="line.508"></a>
-<span class="sourceLineNo">509</span><a name="line.509"></a>
-<span class="sourceLineNo">510</span> if (!failover) {<a name="line.510"></a>
-<span class="sourceLineNo">511</span> disabledOrDisablingOrEnabling = tableStateManager.getTablesInStates(<a name="line.511"></a>
-<span class="sourceLineNo">512</span> TableState.State.DISABLED, TableState.State.DISABLING,<a name="line.512"></a>
-<span class="sourceLineNo">513</span> TableState.State.ENABLING);<a name="line.513"></a>
-<span class="sourceLineNo">514</span><a name="line.514"></a>
-<span class="sourceLineNo">515</span> // Clean re/start, mark all user regions closed before reassignment<a name="line.515"></a>
-<span class="sourceLineNo">516</span> allRegions = regionStates.closeAllUserRegions(<a name="line.516"></a>
-<span class="sourceLineNo">517</span> disabledOrDisablingOrEnabling);<a name="line.517"></a>
+<span class="sourceLineNo">021</span>import com.google.common.annotations.VisibleForTesting;<a name="line.21"></a>
+<span class="sourceLineNo">022</span><a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.Collection;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.Collections;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.HashMap;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.HashSet;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.Iterator;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.List;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.Map;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.NavigableMap;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.Random;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.Set;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.util.TreeMap;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.concurrent.Callable;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import java.util.concurrent.TimeUnit;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import java.util.concurrent.locks.Lock;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import java.util.concurrent.locks.ReentrantLock;<a name="line.43"></a>
+<span class="sourceLineNo">044</span><a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.commons.logging.Log;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.commons.logging.LogFactory;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.conf.Configuration;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.fs.FileStatus;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.fs.FileSystem;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.fs.Path;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.CoordinatedStateException;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.HConstants;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.HTableDescriptor;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.NotServingRegionException;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.RegionStateListener;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.ServerName;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.TableName;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.client.Result;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.executor.EventHandler;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.executor.EventType;<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.executor.ExecutorService;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.ipc.FailedServerException;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.ipc.RpcClient;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.ipc.ServerNotRunningYetException;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.master.RegionState.State;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.master.balancer.FavoredNodeAssignmentHelper;<a name="line.75"></a>
+<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.master.balancer.FavoredNodeLoadBalancer;<a name="line.76"></a>
+<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.master.handler.DisableTableHandler;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.master.handler.EnableTableHandler;<a name="line.78"></a>
+<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.master.normalizer.NormalizationPlan.PlanType;<a name="line.79"></a>
+<span class="sourceLineNo">080</span>import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionStateTransition;<a name="line.80"></a>
+<span class="sourceLineNo">081</span>import org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos.RegionStateTransition.TransitionCode;<a name="line.81"></a>
+<span class="sourceLineNo">082</span>import org.apache.hadoop.hbase.quotas.QuotaExceededException;<a name="line.82"></a>
+<span class="sourceLineNo">083</span>import org.apache.hadoop.hbase.regionserver.RegionOpeningState;<a name="line.83"></a>
+<span class="sourceLineNo">084</span>import org.apache.hadoop.hbase.regionserver.RegionServerAbortedException;<a name="line.84"></a>
+<span class="sourceLineNo">085</span>import org.apache.hadoop.hbase.regionserver.RegionServerStoppedException;<a name="line.85"></a>
+<span class="sourceLineNo">086</span>import org.apache.hadoop.hbase.wal.DefaultWALProvider;<a name="line.86"></a>
+<span class="sourceLineNo">087</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.87"></a>
+<span class="sourceLineNo">088</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.88"></a>
+<span class="sourceLineNo">089</span>import org.apache.hadoop.hbase.util.KeyLocker;<a name="line.89"></a>
+<span class="sourceLineNo">090</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.90"></a>
+<span class="sourceLineNo">091</span>import org.apache.hadoop.hbase.util.PairOfSameType;<a name="line.91"></a>
+<span class="sourceLineNo">092</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.92"></a>
+<span class="sourceLineNo">093</span>import org.apache.hadoop.hbase.zookeeper.MetaTableLocator;<a name="line.93"></a>
+<span class="sourceLineNo">094</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.94"></a>
+<span class="sourceLineNo">095</span>import org.apache.hadoop.util.StringUtils;<a name="line.95"></a>
+<span class="sourceLineNo">096</span>import org.apache.zookeeper.KeeperException;<a name="line.96"></a>
+<span class="sourceLineNo">097</span><a name="line.97"></a>
+<span class="sourceLineNo">098</span>/**<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * Manages and performs region assignment.<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * Related communications with regionserver are all done over RPC.<a name="line.100"></a>
+<span class="sourceLineNo">101</span> */<a name="line.101"></a>
+<span class="sourceLineNo">102</span>@InterfaceAudience.Private<a name="line.102"></a>
+<span class="sourceLineNo">103</span>public class AssignmentManager {<a name="line.103"></a>
+<span class="sourceLineNo">104</span> private static final Log LOG = LogFactory.getLog(AssignmentManager.class);<a name="line.104"></a>
+<span class="sourceLineNo">105</span><a name="line.105"></a>
+<span class="sourceLineNo">106</span> protected final MasterServices server;<a name="line.106"></a>
+<span class="sourceLineNo">107</span><a name="line.107"></a>
+<span class="sourceLineNo">108</span> private ServerManager serverManager;<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span> private boolean shouldAssignRegionsWithFavoredNodes;<a name="line.110"></a>
+<span class="sourceLineNo">111</span><a name="line.111"></a>
+<span class="sourceLineNo">112</span> private LoadBalancer balancer;<a name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span> private final MetricsAssignmentManager metricsAssignmentManager;<a name="line.114"></a>
+<span class="sourceLineNo">115</span><a name="line.115"></a>
+<span class="sourceLineNo">116</span> private final TableLockManager tableLockManager;<a name="line.116"></a>
+<span class="sourceLineNo">117</span><a name="line.117"></a>
+<span class="sourceLineNo">118</span> private AtomicInteger numRegionsOpened = new AtomicInteger(0);<a name="line.118"></a>
+<span class="sourceLineNo">119</span><a name="line.119"></a>
+<span class="sourceLineNo">120</span> final private KeyLocker<String> locker = new KeyLocker<String>();<a name="line.120"></a>
+<span class="sourceLineNo">121</span><a name="line.121"></a>
+<span class="sourceLineNo">122</span> Set<HRegionInfo> replicasToClose = Collections.synchronizedSet(new HashSet<HRegionInfo>());<a name="line.122"></a>
+<span class="sourceLineNo">123</span><a name="line.123"></a>
+<span class="sourceLineNo">124</span> /**<a name="line.124"></a>
+<span class="sourceLineNo">125</span> * Map of regions to reopen after the schema of a table is changed. Key -<a name="line.125"></a>
+<span class="sourceLineNo">126</span> * encoded region name, value - HRegionInfo<a name="line.126"></a>
+<span class="sourceLineNo">127</span> */<a name="line.127"></a>
+<span class="sourceLineNo">128</span> private final Map <String, HRegionInfo> regionsToReopen;<a name="line.128"></a>
+<span class="sourceLineNo">129</span><a name="line.129"></a>
+<span class="sourceLineNo">130</span> /*<a name="line.130"></a>
+<span class="sourceLineNo">131</span> * Maximum times we recurse an assignment/unassignment.<a name="line.131"></a>
+<span class="sourceLineNo">132</span> * See below in {@link #assign()} and {@link #unassign()}.<a name="line.132"></a>
+<span class="sourceLineNo">133</span> */<a name="line.133"></a>
+<span class="sourceLineNo">134</span> private final int maximumAttempts;<a name="line.134"></a>
+<span class="sourceLineNo">135</span><a name="line.135"></a>
+<span class="sourceLineNo">136</span> /**<a name="line.136"></a>
+<span class="sourceLineNo">137</span> * The sleep time for which the assignment will wait before retrying in case of<a name="line.137"></a>
+<span class="sourceLineNo">138</span> * hbase:meta assignment failure due to lack of availability of region plan or bad region plan<a name="line.138"></a>
+<span class="sourceLineNo">139</span> */<a name="line.139"></a>
+<span class="sourceLineNo">140</span> private final long sleepTimeBeforeRetryingMetaAssignment;<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span> /** Plans for region movement. Key is the encoded version of a region name*/<a name="line.142"></a>
+<span class="sourceLineNo">143</span> // TODO: When do plans get cleaned out? Ever? In server open and in server<a name="line.143"></a>
+<span class="sourceLineNo">144</span> // shutdown processing -- St.Ack<a name="line.144"></a>
+<span class="sourceLineNo">145</span> // All access to this Map must be synchronized.<a name="line.145"></a>
+<span class="sourceLineNo">146</span> final NavigableMap<String, RegionPlan> regionPlans =<a name="line.146"></a>
+<span class="sourceLineNo">147</span> new TreeMap<String, RegionPlan>();<a name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span> private final TableStateManager tableStateManager;<a name="line.149"></a>
+<span class="sourceLineNo">150</span><a name="line.150"></a>
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+<span class="sourceLineNo">152</span><a name="line.152"></a>
+<span class="sourceLineNo">153</span> // Thread pool executor service. TODO, consolidate with executorService?<a name="line.153"></a>
+<span class="sourceLineNo">154</span> private java.util.concurrent.ExecutorService threadPoolExecutorService;<a name="line.154"></a>
+<span class="sourceLineNo">155</span><a name="line.155"></a>
+<span class="sourceLineNo">156</span> private final RegionStates regionStates;<a name="line.156"></a>
+<span class="sourceLineNo">157</span><a name="line.157"></a>
+<span class="sourceLineNo">158</span> // The threshold to use bulk assigning. Using bulk assignment<a name="line.158"></a>
+<span class="sourceLineNo">159</span> // only if assigning at least this many regions to at least this<a name="line.159"></a>
+<span class="sourceLineNo">160</span> // many servers. If assigning fewer regions to fewer servers,<a name="line.160"></a>
+<span class="sourceLineNo">161</span> // bulk assigning may be not as efficient.<a name="line.161"></a>
+<span class="sourceLineNo">162</span> private final int bulkAssignThresholdRegions;<a name="line.162"></a>
+<span class="sourceLineNo">163</span> private final int bulkAssignThresholdServers;<a name="line.163"></a>
+<span class="sourceLineNo">164</span> private final int bulkPerRegionOpenTimeGuesstimate;<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span> // Should bulk assignment wait till all regions are assigned,<a name="line.166"></a>
+<span class="sourceLineNo">167</span> // or it is timed out? This is useful to measure bulk assignment<a name="line.167"></a>
+<span class="sourceLineNo">168</span> // performance, but not needed in most use cases.<a name="line.168"></a>
+<span class="sourceLineNo">169</span> private final boolean bulkAssignWaitTillAllAssigned;<a name="line.169"></a>
+<span class="sourceLineNo">170</span><a name="line.170"></a>
+<span class="sourceLineNo">171</span> /**<a name="line.171"></a>
+<span class="sourceLineNo">172</span> * Indicator that AssignmentManager has recovered the region states so<a name="line.172"></a>
+<span class="sourceLineNo">173</span> * that ServerShutdownHandler can be fully enabled and re-assign regions<a name="line.173"></a>
+<span class="sourceLineNo">174</span> * of dead servers. So that when re-assignment happens, AssignmentManager<a name="line.174"></a>
+<span class="sourceLineNo">175</span> * has proper region states.<a name="line.175"></a>
+<span class="sourceLineNo">176</span> *<a name="line.176"></a>
+<span class="sourceLineNo">177</span> * Protected to ease testing.<a name="line.177"></a>
+<span class="sourceLineNo">178</span> */<a name="line.178"></a>
+<span class="sourceLineNo">179</span> protected final AtomicBoolean failoverCleanupDone = new AtomicBoolean(false);<a name="line.179"></a>
+<span class="sourceLineNo">180</span><a name="line.180"></a>
+<span class="sourceLineNo">181</span> /**<a name="line.181"></a>
+<span class="sourceLineNo">182</span> * A map to track the count a region fails to open in a row.<a name="line.182"></a>
+<span class="sourceLineNo">183</span> * So that we don't try to open a region forever if the failure is<a name="line.183"></a>
+<span class="sourceLineNo">184</span> * unrecoverable. We don't put this information in region states<a name="line.184"></a>
+<span class="sourceLineNo">185</span> * because we don't expect this to happen frequently; we don't<a name="line.185"></a>
+<span class="sourceLineNo">186</span> * want to copy this information over during each state transition either.<a name="line.186"></a>
+<span class="sourceLineNo">187</span> */<a name="line.187"></a>
+<span class="sourceLineNo">188</span> private final ConcurrentHashMap<String, AtomicInteger><a name="line.188"></a>
+<span class="sourceLineNo">189</span> failedOpenTracker = new ConcurrentHashMap<String, AtomicInteger>();<a name="line.189"></a>
+<span class="sourceLineNo">190</span><a name="line.190"></a>
+<span class="sourceLineNo">191</span> // In case not using ZK for region assignment, region states<a name="line.191"></a>
+<span class="sourceLineNo">192</span> // are persisted in meta with a state store<a name="line.192"></a>
+<span class="sourceLineNo">193</span> private final RegionStateStore regionStateStore;<a name="line.193"></a>
+<span class="sourceLineNo">194</span><a name="line.194"></a>
+<span class="sourceLineNo">195</span> /**<a name="line.195"></a>
+<span class="sourceLineNo">196</span> * For testing only! Set to true to skip handling of split.<a name="line.196"></a>
+<span class="sourceLineNo">197</span> */<a name="line.197"></a>
+<span class="sourceLineNo">198</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="MS_SHOULD_BE_FINAL")<a name="line.198"></a>
+<span class="sourceLineNo">199</span> public static boolean TEST_SKIP_SPLIT_HANDLING = false;<a name="line.199"></a>
+<span class="sourceLineNo">200</span><a name="line.200"></a>
+<span class="sourceLineNo">201</span> /** Listeners that are called on assignment events. */<a name="line.201"></a>
+<span class="sourceLineNo">202</span> private List<AssignmentListener> listeners = new CopyOnWriteArrayList<AssignmentListener>();<a name="line.202"></a>
+<span class="sourceLineNo">203</span><a name="line.203"></a>
+<span class="sourceLineNo">204</span> private RegionStateListener regionStateListener;<a name="line.204"></a>
+<span class="sourceLineNo">205</span><a name="line.205"></a>
+<span class="sourceLineNo">206</span> /**<a name="line.206"></a>
+<span class="sourceLineNo">207</span> * Constructs a new assignment manager.<a name="line.207"></a>
+<span class="sourceLineNo">208</span> *<a name="line.208"></a>
+<span class="sourceLineNo">209</span> * @param server instance of HMaster this AM running inside<a name="line.209"></a>
+<span class="sourceLineNo">210</span> * @param serverManager serverManager for associated HMaster<a name="line.210"></a>
+<span class="sourceLineNo">211</span> * @param balancer implementation of {@link LoadBalancer}<a name="line.211"></a>
+<span class="sourceLineNo">212</span> * @param service Executor service<a name="line.212"></a>
+<span class="sourceLineNo">213</span> * @param metricsMaster metrics manager<a name="line.213"></a>
+<span class="sourceLineNo">214</span> * @param tableLockManager TableLock manager<a name="line.214"></a>
+<span class="sourceLineNo">215</span> * @throws IOException<a name="line.215"></a>
+<span class="sourceLineNo">216</span> */<a name="line.216"></a>
+<span class="sourceLineNo">217</span> public AssignmentManager(MasterServices server, ServerManager serverManager,<a name="line.217"></a>
+<span class="sourceLineNo">218</span> final LoadBalancer balancer,<a name="line.218"></a>
+<span class="sourceLineNo">219</span> final ExecutorService service, MetricsMaster metricsMaster,<a name="line.219"></a>
+<span class="sourceLineNo">220</span> final TableLockManager tableLockManager,<a name="line.220"></a>
+<span class="sourceLineNo">221</span> final TableStateManager tableStateManager)<a name="line.221"></a>
+<span class="sourceLineNo">222</span> throws IOException {<a name="line.222"></a>
+<span class="sourceLineNo">223</span> this.server = server;<a name="line.223"></a>
+<span class="sourceLineNo">224</span> this.serverManager = serverManager;<a name="line.224"></a>
+<span class="sourceLineNo">225</span> this.executorService = service;<a name="line.225"></a>
+<span class="sourceLineNo">226</span> this.regionStateStore = new RegionStateStore(server);<a name="line.226"></a>
+<span class="sourceLineNo">227</span> this.regionsToReopen = Collections.synchronizedMap<a name="line.227"></a>
+<span class="sourceLineNo">228</span> (new HashMap<String, HRegionInfo> ());<a name="line.228"></a>
+<span class="sourceLineNo">229</span> Configuration conf = server.getConfiguration();<a name="line.229"></a>
+<span class="sourceLineNo">230</span> // Only read favored nodes if using the favored nodes load balancer.<a name="line.230"></a>
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+<span class="sourceLineNo">236</span><a name="line.236"></a>
+<span class="sourceLineNo">237</span> // This is the max attempts, not retries, so it should be at least 1.<a name="line.237"></a>
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+<span class="sourceLineNo">244</span> this.threadPoolExecutorService = Threads.getBoundedCachedThreadPool(<a name="line.244"></a>
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+<span class="sourceLineNo">246</span> this.regionStates = new RegionStates(<a name="line.246"></a>
+<span class="sourceLineNo">247</span> server, tableStateManager, serverManager, regionStateStore);<a name="line.247"></a>
+<span class="sourceLineNo">248</span><a name="line.248"></a>
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+<span class="sourceLineNo">253</span> this.bulkPerRegionOpenTimeGuesstimate =<a name="line.253"></a>
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+<span class="sourceLineNo">255</span><a name="line.255"></a>
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+<span class="sourceLineNo">257</span> this.tableLockManager = tableLockManager;<a name="line.257"></a>
+<span class="sourceLineNo">258</span> }<a name="line.258"></a>
+<span class="sourceLineNo">259</span><a name="line.259"></a>
+<span class="sourceLineNo">260</span> /**<a name="line.260"></a>
+<span class="sourceLineNo">261</span> * Add the listener to the notification list.<a name="line.261"></a>
+<span class="sourceLineNo">262</span> * @param listener The AssignmentListener to register<a name="line.262"></a>
+<span class="sourceLineNo">263</span> */<a name="line.263"></a>
+<span class="sourceLineNo">264</span> public void registerListener(final AssignmentListener listener) {<a name="line.264"></a>
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+<span class="sourceLineNo">266</span> }<a name="line.266"></a>
+<span class="sourceLineNo">267</span><a name="line.267"></a>
+<span class="sourceLineNo">268</span> /**<a name="line.268"></a>
+<span class="sourceLineNo">269</span> * Remove the listener from the notification list.<a name="line.269"></a>
+<span class="sourceLineNo">270</span> * @param listener The AssignmentListener to unregister<a name="line.270"></a>
+<span class="sourceLineNo">271</span> */<a name="line.271"></a>
+<span class="sourceLineNo">272</span> public boolean unregisterListener(final AssignmentListener listener) {<a name="line.272"></a>
+<span class="sourceLineNo">273</span> return this.listeners.remove(listener);<a name="line.273"></a>
+<span class="sourceLineNo">274</span> }<a name="line.274"></a>
+<span class="sourceLineNo">275</span><a name="line.275"></a>
+<span class="sourceLineNo">276</span> /**<a name="line.276"></a>
+<span class="sourceLineNo">277</span> * @return Instance of ZKTableStateManager.<a name="line.277"></a>
+<span class="sourceLineNo">278</span> */<a name="line.278"></a>
+<span class="sourceLineNo">279</span> public TableStateManager getTableStateManager() {<a name="line.279"></a>
+<span class="sourceLineNo">280</span> // These are 'expensive' to make involving trip to zk ensemble so allow<a name="line.280"></a>
+<span class="sourceLineNo">281</span> // sharing.<a name="line.281"></a>
+<span class="sourceLineNo">282</span> return this.tableStateManager;<a name="line.282"></a>
+<span class="sourceLineNo">283</span> }<a name="line.283"></a>
+<span class="sourceLineNo">284</span><a name="line.284"></a>
+<span class="sourceLineNo">285</span> /**<a name="line.285"></a>
+<span class="sourceLineNo">286</span> * This SHOULD not be public. It is public now<a name="line.286"></a>
+<span class="sourceLineNo">287</span> * because of some unit tests.<a name="line.287"></a>
+<span class="sourceLineNo">288</span> *<a name="line.288"></a>
+<span class="sourceLineNo">289</span> * TODO: make it package private and keep RegionStates in the master package<a name="line.289"></a>
+<span class="sourceLineNo">290</span> */<a name="line.290"></a>
+<span class="sourceLineNo">291</span> public RegionStates getRegionStates() {<a name="line.291"></a>
+<span class="sourceLineNo">292</span> return regionStates;<a name="line.292"></a>
+<span class="sourceLineNo">293</span> }<a name="line.293"></a>
+<span class="sourceLineNo">294</span><a name="line.294"></a>
+<span class="sourceLineNo">295</span> /**<a name="line.295"></a>
+<span class="sourceLineNo">296</span> * Used in some tests to mock up region state in meta<a name="line.296"></a>
+<span class="sourceLineNo">297</span> */<a name="line.297"></a>
+<span class="sourceLineNo">298</span> @VisibleForTesting<a name="line.298"></a>
+<span class="sourceLineNo">299</span> RegionStateStore getRegionStateStore() {<a name="line.299"></a>
+<span class="sourceLineNo">300</span> return regionStateStore;<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> public RegionPlan getRegionReopenPlan(HRegionInfo hri) {<a name="line.303"></a>
+<span class="sourceLineNo">304</span> return new RegionPlan(hri, null, regionStates.getRegionServerOfRegion(hri));<a name="line.304"></a>
+<span class="sourceLineNo">305</span> }<a name="line.305"></a>
+<span class="sourceLineNo">306</span><a name="line.306"></a>
+<span class="sourceLineNo">307</span> /**<a name="line.307"></a>
+<span class="sourceLineNo">308</span> * Add a regionPlan for the specified region.<a name="line.308"></a>
+<span class="sourceLineNo">309</span> * @param encodedName<a name="line.309"></a>
+<span class="sourceLineNo">310</span> * @param plan<a name="line.310"></a>
+<span class="sourceLineNo">311</span> */<a name="line.311"></a>
+<span class="sourceLineNo">312</span> public void addPlan(String encodedName, RegionPlan plan) {<a name="line.312"></a>
+<span class="sourceLineNo">313</span> synchronized (regionPlans) {<a name="line.313"></a>
+<span class="sourceLineNo">314</span> regionPlans.put(encodedName, plan);<a name="line.314"></a>
+<span class="sourceLineNo">315</span> }<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> /**<a name="line.318"></a>
+<span class="sourceLineNo">319</span> * Add a map of region plans.<a name="line.319"></a>
+<span class="sourceLineNo">320</span> */<a name="line.320"></a>
+<span class="sourceLineNo">321</span> public void addPlans(Map<String, RegionPlan> plans) {<a name="line.321"></a>
+<span class="sourceLineNo">322</span> synchronized (regionPlans) {<a name="line.322"></a>
+<span class="sourceLineNo">323</span> regionPlans.putAll(plans);<a name="line.323"></a>
+<span class="sourceLineNo">324</span> }<a name="line.324"></a>
+<span class="sourceLineNo">325</span> }<a name="line.325"></a>
+<span class="sourceLineNo">326</span><a name="line.326"></a>
+<span class="sourceLineNo">327</span> /**<a name="line.327"></a>
+<span class="sourceLineNo">328</span> * Set the list of regions that will be reopened<a name="line.328"></a>
+<span class="sourceLineNo">329</span> * because of an update in table schema<a name="line.329"></a>
+<span class="sourceLineNo">330</span> *<a name="line.330"></a>
+<span class="sourceLineNo">331</span> * @param regions<a name="line.331"></a>
+<span class="sourceLineNo">332</span> * list of regions that should be tracked for reopen<a name="line.332"></a>
+<span class="sourceLineNo">333</span> */<a name="line.333"></a>
+<span class="sourceLineNo">334</span> public void setRegionsToReopen(List <HRegionInfo> regions) {<a name="line.334"></a>
+<span class="sourceLineNo">335</span> for(HRegionInfo hri : regions) {<a name="line.335"></a>
+<span class="sourceLineNo">336</span> regionsToReopen.put(hri.getEncodedName(), hri);<a name="line.336"></a>
+<span class="sourceLineNo">337</span> }<a name="line.337"></a>
+<span class="sourceLineNo">338</span> }<a name="line.338"></a>
+<span class="sourceLineNo">339</span><a name="line.339"></a>
+<span class="sourceLineNo">340</span> /**<a name="line.340"></a>
+<span class="sourceLineNo">341</span> * Used by the client to identify if all regions have the schema updates<a name="line.341"></a>
+<span class="sourceLineNo">342</span> *<a name="line.342"></a>
+<span class="sourceLineNo">343</span> * @param tableName<a name="line.343"></a>
+<span class="sourceLineNo">344</span> * @return Pair indicating the status of the alter command<a name="line.344"></a>
+<span class="sourceLineNo">345</span> * @throws IOException<a name="line.345"></a>
+<span class="sourceLineNo">346</span> */<a name="line.346"></a>
+<span class="sourceLineNo">347</span> public Pair<Integer, Integer> getReopenStatus(TableName tableName)<a name="line.347"></a>
+<span class="sourceLineNo">348</span> throws IOException {<a name="line.348"></a>
+<span class="sourceLineNo">349</span> List<HRegionInfo> hris;<a name="line.349"></a>
+<span class="sourceLineNo">350</span> if (TableName.META_TABLE_NAME.equals(tableName)) {<a name="line.350"></a>
+<span class="sourceLineNo">351</span> hris = new MetaTableLocator().getMetaRegions(server.getZooKeeper());<a name="line.351"></a>
+<span class="sourceLineNo">352</span> } else {<a name="line.352"></a>
+<span class="sourceLineNo">353</span> hris = MetaTableAccessor.getTableRegions(server.getConnection(), tableName, true);<a name="line.353"></a>
+<span class="sourceLineNo">354</span> }<a name="line.354"></a>
+<span class="sourceLineNo">355</span><a name="line.355"></a>
+<span class="sourceLineNo">356</span> Integer pending = 0;<a name="line.356"></a>
+<span class="sourceLineNo">357</span> for (HRegionInfo hri : hris) {<a name="line.357"></a>
+<span class="sourceLineNo">358</span> String name = hri.getEncodedName();<a name="line.358"></a>
+<span class="sourceLineNo">359</span> // no lock concurrent access ok: sequential consistency respected.<a name="line.359"></a>
+<span class="sourceLineNo">360</span> if (regionsToReopen.containsKey(name)<a name="line.360"></a>
+<span class="sourceLineNo">361</span> || regionStates.isRegionInTransition(name)) {<a name="line.361"></a>
+<span class="sourceLineNo">362</span> pending++;<a name="line.362"></a>
+<span class="sourceLineNo">363</span> }<a name="line.363"></a>
+<span class="sourceLineNo">364</span> }<a name="line.364"></a>
+<span class="sourceLineNo">365</span> return new Pair<Integer, Integer>(pending, hris.size());<a name="line.365"></a>
+<span class="sourceLineNo">366</span> }<a name="line.366"></a>
+<span class="sourceLineNo">367</span><a name="line.367"></a>
+<span class="sourceLineNo">368</span> /**<a name="line.368"></a>
+<span class="sourceLineNo">369</span> * Used by ServerShutdownHandler to make sure AssignmentManager has completed<a name="line.369"></a>
+<span class="sourceLineNo">370</span> * the failover cleanup before re-assigning regions of dead servers. So that<a name="line.370"></a>
+<span class="sourceLineNo">371</span> * when re-assignment happens, AssignmentManager has proper region states.<a name="line.371"></a>
+<span class="sourceLineNo">372</span> */<a name="line.372"></a>
+<span class="sourceLineNo">373</span> public boolean isFailoverCleanupDone() {<a name="line.373"></a>
+<span class="sourceLineNo">374</span> return failoverCleanupDone.get();<a name="line.374"></a>
+<span class="sourceLineNo">375</span> }<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> * To avoid racing with AM, external entities may need to lock a region,<a name="line.378"></a>
+<span class="sourceLineNo">379</span> * for example, when SSH checks what regions to skip re-assigning.<a name="line.379"></a>
+<span class="sourceLineNo">380</span> */<a name="line.380"></a>
+<span class="sourceLineNo">381</span> public Lock acquireRegionLock(final String encodedName) {<a name="line.381"></a>
+<span class="sourceLineNo">382</span> return locker.acquireLock(encodedName);<a name="line.382"></a>
+<span class="sourceLineNo">383</span> }<a name="line.383"></a>
+<span class="sourceLineNo">384</span><a name="line.384"></a>
+<span class="sourceLineNo">385</span> /**<a name="line.385"></a>
+<span class="sourceLineNo">386</span> * Now, failover cleanup is completed. Notify server manager to<a name="line.386"></a>
+<span class="sourceLineNo">387</span> * process queued up dead servers processing, if any.<a name="line.387"></a>
+<span class="sourceLineNo">388</span> */<a name="line.388"></a>
+<span class="sourceLineNo">389</span> void failoverCleanupDone() {<a name="line.389"></a>
+<span class="sourceLineNo">390</span> failoverCleanupDone.set(true);<a name="line.390"></a>
+<span class="sourceLineNo">391</span> serverManager.processQueuedDeadServers();<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> /**<a name="line.394"></a>
+<span class="sourceLineNo">395</span> * Called on startup.<a name="line.395"></a>
+<span class="sourceLineNo">396</span> * Figures whether a fresh cluster start of we are joining extant running cluster.<a name="line.396"></a>
+<span class="sourceLineNo">397</span> * @throws IOException<a name="line.397"></a>
+<span class="sourceLineNo">398</span> * @throws KeeperException<a name="line.398"></a>
+<span class="sourceLineNo">399</span> * @throws InterruptedException<a name="line.399"></a>
+<span class="sourceLineNo">400</span> * @throws CoordinatedStateException<a name="line.400"></a>
+<span class="sourceLineNo">401</span> */<a name="line.401"></a>
+<span class="sourceLineNo">402</span> void joinCluster()<a name="line.402"></a>
+<span class="sourceLineNo">403</span> throws IOException, KeeperException, InterruptedException, CoordinatedStateException {<a name="line.403"></a>
+<span class="sourceLineNo">404</span> long startTime = System.currentTimeMillis();<a name="line.404"></a>
+<span class="sourceLineNo">405</span> // Concurrency note: In the below the accesses on regionsInTransition are<a name="line.405"></a>
+<span class="sourceLineNo">406</span> // outside of a synchronization block where usually all acces
<TRUNCATED>