[01/51] [partial] hbase-site git commit: Published site at 1acbd36c903b048141866b143507bfce124a5c5f.

[git-site-role]

Repository: hbase-site
Updated Branches:
  refs/heads/asf-site ba00a2513 -> 5299e6673


http://git-wip-us.apache.org/repos/asf/hbase-site/blob/5299e667/devapidocs/src-html/org/apache/hadoop/hbase/master/HMaster.InitializationMonitor.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/HMaster.InitializationMonitor.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/HMaster.InitializationMonitor.html
index 1c0118e..63362ed 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/master/HMaster.InitializationMonitor.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/master/HMaster.InitializationMonitor.html
@@ -1120,2858 +1120,2862 @@
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getChoreService().scheduleChore(catalogJanitorChore);<a name="line.1112"></a>
 <span class="sourceLineNo">1113</span>    this.serverManager.startChore();<a 
name="line.1113"></a>
 <span class="sourceLineNo">1114</span><a name="line.1114"></a>
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be online. See inside initClusterSchemaService.<a name="line.1116"></a>
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pain being a sort-of system table. Fold it in to hbase:meta.<a 
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waits until namespace is onlined before allowing progress.<a 
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this.cpHost.preMasterInitialization();<a name="line.1127"></a>
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successful");<a name="line.1133"></a>
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completed initialization %.3fsec",<a name="line.1134"></a>
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masterActiveTime) / 1000.0f));<a name="line.1135"></a>
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this.masterFinishedInitializationTime = System.currentTimeMillis();<a 
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configurationManager.registerObserver(this.balancer);<a name="line.1137"></a>
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configurationManager.registerObserver(this.hfileCleaner);<a 
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configurationManager.registerObserver(this.logCleaner);<a name="line.1139"></a>
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skipping final initialization steps.");<a name="line.1144"></a>
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assignmentManager.checkIfShouldMoveSystemRegionAsync();<a name="line.1148"></a>
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replicas");<a name="line.1149"></a>
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createMetaBootstrap();<a name="line.1150"></a>
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metaBootstrap.assignMetaReplicas();<a name="line.1151"></a>
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manager");<a name="line.1152"></a>
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name="line.1153"></a>
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{<a name="line.1154"></a>
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notifier<a name="line.1155"></a>
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createQuotaSnapshotNotifier();<a name="line.1156"></a>
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spaceQuotaSnapshotNotifier.initialize(getClusterConnection());<a 
name="line.1157"></a>
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QuotaObserverChore(this, getMasterMetrics());<a name="line.1158"></a>
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region FS space reports and act on them<a name="line.1159"></a>
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getChoreService().scheduleChore(quotaObserverChore);<a name="line.1160"></a>
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snapshots and add their usage to table/NS quotas<a name="line.1163"></a>
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getChoreService().scheduleChore(snapshotQuotaChore);<a name="line.1164"></a>
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host name and port of online server because we are not<a name="line.1167"></a>
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hostname and port of rs which is trying to check in before<a 
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HBASE-5916.<a name="line.1169"></a>
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this.serverManager.clearDeadServersWithSameHostNameAndPortOfOnlineServer();<a 
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needed in case we are overtaking a non-secure configuration<a 
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ACLs");<a name="line.1173"></a>
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name="line.1174"></a>
+<span class="sourceLineNo">1115</span>    // Only for rolling upgrade, where 
we need to migrate the data in namespace table to meta table.<a 
name="line.1115"></a>
+<span class="sourceLineNo">1116</span>    if (!waitForNamespaceOnline()) {<a 
name="line.1116"></a>
+<span class="sourceLineNo">1117</span>      return;<a name="line.1117"></a>
+<span class="sourceLineNo">1118</span>    }<a name="line.1118"></a>
+<span class="sourceLineNo">1119</span>    status.setStatus("Starting cluster 
schema service");<a name="line.1119"></a>
+<span class="sourceLineNo">1120</span>    initClusterSchemaService();<a 
name="line.1120"></a>
+<span class="sourceLineNo">1121</span><a name="line.1121"></a>
+<span class="sourceLineNo">1122</span>    if (this.cpHost != null) {<a 
name="line.1122"></a>
+<span class="sourceLineNo">1123</span>      try {<a name="line.1123"></a>
+<span class="sourceLineNo">1124</span>        
this.cpHost.preMasterInitialization();<a name="line.1124"></a>
+<span class="sourceLineNo">1125</span>      } catch (IOException e) {<a 
name="line.1125"></a>
+<span class="sourceLineNo">1126</span>        LOG.error("Coprocessor 
preMasterInitialization() hook failed", e);<a name="line.1126"></a>
+<span class="sourceLineNo">1127</span>      }<a name="line.1127"></a>
+<span class="sourceLineNo">1128</span>    }<a name="line.1128"></a>
+<span class="sourceLineNo">1129</span><a name="line.1129"></a>
+<span class="sourceLineNo">1130</span>    status.markComplete("Initialization 
successful");<a name="line.1130"></a>
+<span class="sourceLineNo">1131</span>    LOG.info(String.format("Master has 
completed initialization %.3fsec",<a name="line.1131"></a>
+<span class="sourceLineNo">1132</span>       (System.currentTimeMillis() - 
masterActiveTime) / 1000.0f));<a name="line.1132"></a>
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this.masterFinishedInitializationTime = System.currentTimeMillis();<a 
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configurationManager.registerObserver(this.balancer);<a name="line.1134"></a>
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configurationManager.registerObserver(this.hfileCleaner);<a 
name="line.1135"></a>
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configurationManager.registerObserver(this.logCleaner);<a name="line.1136"></a>
+<span class="sourceLineNo">1137</span>    // Set master as 'initialized'.<a 
name="line.1137"></a>
+<span class="sourceLineNo">1138</span>    setInitialized(true);<a 
name="line.1138"></a>
+<span class="sourceLineNo">1139</span><a name="line.1139"></a>
+<span class="sourceLineNo">1140</span>    if (maintenanceMode) {<a 
name="line.1140"></a>
+<span class="sourceLineNo">1141</span>      LOG.info("Detected repair mode, 
skipping final initialization steps.");<a name="line.1141"></a>
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+<span class="sourceLineNo">1143</span>    }<a name="line.1143"></a>
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assignmentManager.checkIfShouldMoveSystemRegionAsync();<a name="line.1145"></a>
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replicas");<a name="line.1146"></a>
+<span class="sourceLineNo">1147</span>    MasterMetaBootstrap metaBootstrap = 
createMetaBootstrap();<a name="line.1147"></a>
+<span class="sourceLineNo">1148</span>    
metaBootstrap.assignMetaReplicas();<a name="line.1148"></a>
+<span class="sourceLineNo">1149</span>    status.setStatus("Starting quota 
manager");<a name="line.1149"></a>
+<span class="sourceLineNo">1150</span>    initQuotaManager();<a 
name="line.1150"></a>
+<span class="sourceLineNo">1151</span>    if (QuotaUtil.isQuotaEnabled(conf)) 
{<a name="line.1151"></a>
+<span class="sourceLineNo">1152</span>      // Create the quota snapshot 
notifier<a name="line.1152"></a>
+<span class="sourceLineNo">1153</span>      spaceQuotaSnapshotNotifier = 
createQuotaSnapshotNotifier();<a name="line.1153"></a>
+<span class="sourceLineNo">1154</span>      
spaceQuotaSnapshotNotifier.initialize(getClusterConnection());<a 
name="line.1154"></a>
+<span class="sourceLineNo">1155</span>      this.quotaObserverChore = new 
QuotaObserverChore(this, getMasterMetrics());<a name="line.1155"></a>
+<span class="sourceLineNo">1156</span>      // Start the chore to read the 
region FS space reports and act on them<a name="line.1156"></a>
+<span class="sourceLineNo">1157</span>      
getChoreService().scheduleChore(quotaObserverChore);<a name="line.1157"></a>
+<span class="sourceLineNo">1158</span><a name="line.1158"></a>
+<span class="sourceLineNo">1159</span>      this.snapshotQuotaChore = new 
SnapshotQuotaObserverChore(this, getMasterMetrics());<a name="line.1159"></a>
+<span class="sourceLineNo">1160</span>      // Start the chore to read 
snapshots and add their usage to table/NS quotas<a name="line.1160"></a>
+<span class="sourceLineNo">1161</span>      
getChoreService().scheduleChore(snapshotQuotaChore);<a name="line.1161"></a>
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+<span class="sourceLineNo">1163</span><a name="line.1163"></a>
+<span class="sourceLineNo">1164</span>    // clear the dead servers with same 
host name and port of online server because we are not<a name="line.1164"></a>
+<span class="sourceLineNo">1165</span>    // removing dead server with same 
hostname and port of rs which is trying to check in before<a 
name="line.1165"></a>
+<span class="sourceLineNo">1166</span>    // master initialization. See 
HBASE-5916.<a name="line.1166"></a>
+<span class="sourceLineNo">1167</span>    
this.serverManager.clearDeadServersWithSameHostNameAndPortOfOnlineServer();<a 
name="line.1167"></a>
+<span class="sourceLineNo">1168</span><a name="line.1168"></a>
+<span class="sourceLineNo">1169</span>    // Check and set the znode ACLs if 
needed in case we are overtaking a non-secure configuration<a 
name="line.1169"></a>
+<span class="sourceLineNo">1170</span>    status.setStatus("Checking ZNode 
ACLs");<a name="line.1170"></a>
+<span class="sourceLineNo">1171</span>    zooKeeper.checkAndSetZNodeAcls();<a 
name="line.1171"></a>
+<span class="sourceLineNo">1172</span><a name="line.1172"></a>
+<span class="sourceLineNo">1173</span>    status.setStatus("Initializing MOB 
Cleaner");<a name="line.1173"></a>
+<span class="sourceLineNo">1174</span>    initMobCleaner();<a 
name="line.1174"></a>
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-<span class="sourceLineNo">1181</span>      // don't let cp initialization 
errors kill the master<a name="line.1181"></a>
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name="line.1183"></a>
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name="line.1184"></a>
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-<span class="sourceLineNo">1188</span><a name="line.1188"></a>
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do balancer post startup initialization. Since this runs<a name="line.1192"></a>
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should be fine.<a name="line.1193"></a>
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this.balancer.postMasterStartupInitialize();<a name="line.1196"></a>
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name="line.1197"></a>
-<span class="sourceLineNo">1198</span>      LOG.debug("Balancer post startup 
initialization complete, took " + (<a name="line.1198"></a>
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start) / 1000) + " seconds");<a name="line.1199"></a>
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for reading. For use during Master startup only.<a name="line.1204"></a>
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online and startup can progress. Otherwise, meta is not online<a 
name="line.1205"></a>
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operator intervention.<a name="line.1206"></a>
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throws InterruptedException {<a name="line.1209"></a>
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isRegionOnline(RegionInfoBuilder.FIRST_META_REGIONINFO);<a name="line.1210"></a>
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-<span class="sourceLineNo">1213</span>  /**<a name="line.1213"></a>
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and scannable else false if an error or shutdown (Otherwise<a 
name="line.1214"></a>
-<span class="sourceLineNo">1215</span>   *   we just block in here holding up 
all forward-progess).<a name="line.1215"></a>
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isRegionOnline(RegionInfo ri) throws InterruptedException {<a 
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name="line.1218"></a>
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this.assignmentManager.getRegionStates().getRegionState(ri);<a 
name="line.1220"></a>
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(this.getServerManager().isServerOnline(rs.getServerName())) {<a 
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-<span class="sourceLineNo">1226</span>      // Region is not OPEN.<a 
name="line.1226"></a>
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Optional&lt;Procedure&lt;MasterProcedureEnv&gt;&gt; optProc = 
this.procedureExecutor.getProcedures().<a name="line.1227"></a>
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instanceof ServerCrashProcedure).findAny();<a name="line.1228"></a>
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how to do repair. Have this log message point to it.<a name="line.1229"></a>
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edits, how to schedule at least the meta WAL recovery, and<a 
name="line.1230"></a>
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how to break region lock if one held.<a name="line.1231"></a>
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state={}; ServerCrashProcedures={}. Master startup cannot " +<a 
name="line.1232"></a>
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until region onlined.",<a name="line.1233"></a>
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rs, optProc.isPresent());<a name="line.1234"></a>
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Threads.sleep(rc.getBackoffTimeAndIncrementAttempts());<a name="line.1239"></a>
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assigned. If not, startup will hang looking for the ns table<a 
name="line.1245"></a>
-<span class="sourceLineNo">1246</span>   * (TODO: Fix this! NS should not 
hold-up startup).<a name="line.1246"></a>
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postStartMaster coprocessors");<a name="line.1176"></a>
+<span class="sourceLineNo">1177</span>    if (this.cpHost != null) {<a 
name="line.1177"></a>
+<span class="sourceLineNo">1178</span>      // don't let cp initialization 
errors kill the master<a name="line.1178"></a>
+<span class="sourceLineNo">1179</span>      try {<a name="line.1179"></a>
+<span class="sourceLineNo">1180</span>        this.cpHost.postStartMaster();<a 
name="line.1180"></a>
+<span class="sourceLineNo">1181</span>      } catch (IOException ioe) {<a 
name="line.1181"></a>
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this.procedureExecutor.getProcedures().<a name="line.1224"></a>
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how to do repair. Have this log message point to it.<a name="line.1226"></a>
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edits, how to schedule at least the meta WAL recovery, and<a 
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how to break region lock if one held.<a name="line.1228"></a>
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configurationManager.registerObserver(procEnv);<a name="line.1522"></a>
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conf.getBoolean(MasterProcedureConstants.EXECUTOR_ABORT_ON_CORRUPTION,<a 
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MasterProcedureConstants.DEFAULT_EXECUTOR_ABORT_ON_CORRUPTION);<a 
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procEnv.getRemoteDispatcher().start();<a name="line.1535"></a>
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configurationManager.deregisterObserver(procedureExecutor.getEnvironment());<a 
name="line.1544"></a>
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procedureExecutor.getEnvironment().getRemoteDispatcher().stop();<a 
name="line.1545"></a>
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name="line.1546"></a>
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procedureStore.stop(isAborted());<a name="line.1552"></a>
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name="line.1553"></a>
+<span class="sourceLineNo">1404</span>  @Override<a name="line.1404"></a>
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getTableStateManager() {<a name="line.1405"></a>
+<span class="sourceLineNo">1406</span>    return tableStateManager;<a 
name="line.1406"></a>
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+<span class="sourceLineNo">1408</span><a name="line.1408"></a>
+<span class="sourceLineNo">1409</span>  /*<a name="line.1409"></a>
+<span class="sourceLineNo">1410</span>   * Start up all services. If any of 
these threads gets an unhandled exception<a name="line.1410"></a>
+<span class="sourceLineNo">1411</span>   * then they just die with a logged 
message.  This should be fine because<a name="line.1411"></a>
+<span class="sourceLineNo">1412</span>   * in general, we do not expect the 
master to get such unhandled exceptions<a name="line.1412"></a>
+<span class="sourceLineNo">1413</span>   *  as OOMEs; it should be lightly 
loaded. See what HRegionServer does if<a name="line.1413"></a>
+<span class="sourceLineNo">1414</span>   *  need to install an unexpected 
exception handler.<a name="line.1414"></a>
+<span class="sourceLineNo">1415</span>   */<a name="line.1415"></a>
+<span class="sourceLineNo">1416</span>  private void startServiceThreads() 
throws IOException{<a name="line.1416"></a>
+<span class="sourceLineNo">1417</span>   // Start the executor service pools<a 
name="line.1417"></a>
+<span class="sourceLineNo">1418</span>   
this.executorService.startExecutorService(ExecutorType.MASTER_OPEN_REGION,<a 
name="line.1418"></a>
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conf.getInt("hbase.master.executor.openregion.threads", 5));<a 
name="line.1419"></a>
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this.executorService.startExecutorService(ExecutorType.MASTER_CLOSE_REGION,<a 
name="line.1420"></a>
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conf.getInt("hbase.master.executor.closeregion.threads", 5));<a 
name="line.1421"></a>
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this.executorService.startExecutorService(ExecutorType.MASTER_SERVER_OPERATIONS,<a
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conf.getInt("hbase.master.executor.serverops.threads", 5));<a 
name="line.1423"></a>
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this.executorService.startExecutorService(ExecutorType.MASTER_META_SERVER_OPERATIONS,<a
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conf.getInt("hbase.master.executor.meta.serverops.threads", 5));<a 
name="line.1425"></a>
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this.executorService.startExecutorService(ExecutorType.M_LOG_REPLAY_OPS,<a 
name="line.1426"></a>
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conf.getInt("hbase.master.executor.logreplayops.threads", 10));<a 
name="line.1427"></a>
+<span class="sourceLineNo">1428</span><a name="line.1428"></a>
+<span class="sourceLineNo">1429</span>   // We depend on there being only one 
instance of this executor running<a name="line.1429"></a>
+<span class="sourceLineNo">1430</span>   // at a time.  To do concurrency, 
would need fencing of enable/disable of<a name="line.1430"></a>
+<span class="sourceLineNo">1431</span>   // tables.<a name="line.1431"></a>
+<span class="sourceLineNo">1432</span>   // Any time changing this maxThreads 
to &gt; 1, pls see the comment at<a name="line.1432"></a>
+<span class="sourceLineNo">1433</span>   // 
AccessController#postCompletedCreateTableAction<a name="line.1433"></a>
+<span class="sourceLineNo">1434</span>   
this.executorService.startExecutorService(ExecutorType.MASTER_TABLE_OPERATIONS, 
1);<a name="line.1434"></a>
+<span class="sourceLineNo">1435</span>   startProcedureExecutor();<a 
name="line.1435"></a>
+<span class="sourceLineNo">1436</span><a name="line.1436"></a>
+<span class="sourceLineNo">1437</span>    // Initial cleaner chore<a 
name="line.1437"></a>
+<span class="sourceLineNo">1438</span>    CleanerChore.initChorePool(conf);<a 
name="line.1438"></a>
+<span class="sourceLineNo">1439</span>   // Start log cleaner thread<a 
name="line.1439"></a>
+<span class="sourceLineNo">1440</span>   int cleanerInterval = 
conf.getInt("hbase.master.cleaner.interval", 600 * 1000);<a 
name="line.1440"></a>
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name="line.1441"></a>
+<span class="sourceLineNo">1442</span>      new LogCleaner(cleanerInterval,<a 
name="line.1442"></a>
+<span class="sourceLineNo">1443</span>         this, conf, 
getMasterWalManager().getFileSystem(),<a name="line.1443"></a>
+<span class="sourceLineNo">1444</span>         
getMasterWalManager().getOldLogDir());<a name="line.1444"></a>
+<span class="sourceLineNo">1445</span>    
getChoreService().scheduleChore(logCleaner);<a name="line.1445"></a>
+<span class="sourceLineNo">1446</span><a name="line.1446"></a>
+<span class="sourceLineNo">1447</span>    // start the hfile archive cleaner 
thread<a name="line.1447"></a>
+<span class="sourceLineNo">1448</span>    Path archiveDir = 
HFileArchiveUtil.getArchivePath(conf);<a name="line.1448"></a>
+<span class="sourceLineNo">1449</span>    Map&lt;String, Object&gt; params = 
new HashMap&lt;&gt;();<a name="line.1449"></a>
+<span class="sourceLineNo">1450</span>    params.put(MASTER, this);<a 
name="line.1450"></a>
+<span class="sourceLineNo">1451</span>    this.hfileCleaner = new 
HFileCleaner(cleanerInterval, this, conf, getMasterFileSystem()<a 
name="line.1451"></a>
+<span class="sourceLineNo">1452</span>        .getFileSystem(), archiveDir, 
params);<a name="line.1452"></a>
+<span class="sourceLineNo">1453</span>    
getChoreService().scheduleChore(hfileCleaner);<a name="line.1453"></a>
+<span class="sourceLineNo">1454</span><a name="line.1454"></a>
+<span class="sourceLineNo">1455</span>    replicationBarrierCleaner = new 
ReplicationBarrierCleaner(conf, this, getConnection(),<a name="line.1455"></a>
+<span class="sourceLineNo">1456</span>      replicationPeerManager);<a 
name="line.1456"></a>
+<span class="sourceLineNo">1457</span>    
getChoreService().scheduleChore(replicationBarrierCleaner);<a 
name="line.1457"></a>
+<span class="sourceLineNo">1458</span><a name="line.1458"></a>
+<span class="sourceLineNo">1459</span>    serviceStarted = true;<a 
name="line.1459"></a>
+<span class="sourceLineNo">1460</span>    if (LOG.isTraceEnabled()) {<a 
name="line.1460"></a>
+<span class="sourceLineNo">1461</span>      LOG.trace("Started service 
threads");<a name="line.1461"></a>
+<span class="sourceLineNo">1462</span>    }<a name="line.1462"></a>
+<span class="sourceLineNo">1463</span>  }<a name="line.1463"></a>
+<span class="sourceLineNo">1464</span><a name="line.1464"></a>
+<span class="sourceLineNo">1465</span>  @Override<a name="line.1465"></a>
+<span class="sourceLineNo">1466</span>  protected void stopServiceThreads() 
{<a name="line.1466"></a>
+<span class="sourceLineNo">1467</span>    if (masterJettyServer != null) {<a 
name="line.1467"></a>
+<span class="sourceLineNo">1468</span>      LOG.info("Stopping master jetty 
server");<a name="line.1468"></a>
+<span class="sourceLineNo">1469</span>      try {<a name="line.1469"></a>
+<span class="sourceLineNo">1470</span>        masterJettyServer.stop();<a 
name="line.1470"></a>
+<span class="sourceLineNo">1471</span>      } catch (Exception e) {<a 
name="line.1471"></a>
+<span class="sourceLineNo">1472</span>        LOG.error("Failed to stop master 
jetty server", e);<a name="line.1472"></a>
+<span class="sourceLineNo">1473</span>      }<a name="line.1473"></a>
+<span class="sourceLineNo">1474</span>    }<a name="line.1474"></a>
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{<a name="line.1476"></a>
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name="line.1477"></a>
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+<span class="sourceLineNo">1479</span>    super.stopServiceThreads();<a 
name="line.1479"></a>
+<span class="sourceLineNo">1480</span>    CleanerChore.shutDownChorePool();<a 
name="line.1480"></a>
+<span class="sourceLineNo">1481</span><a name="line.1481"></a>
+<span class="sourceLineNo">1482</span>    LOG.debug("Stopping service 
threads");<a name="line.1482"></a>
+<span class="sourceLineNo">1483</span><a name="line.1483"></a>
+<span class="sourceLineNo">1484</span>    if (this.quotaManager != null) {<a 
name="line.1484"></a>
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name="line.1485"></a>
+<span class="sourceLineNo">1486</span>    }<a name="line.1486"></a>
+<span class="sourceLineNo">1487</span><a name="line.1487"></a>
+<span class="sourceLineNo">1488</span>    if (this.activeMasterManager != 
null) {<a name="line.1488"></a>
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name="line.1489"></a>
+<span class="sourceLineNo">1490</span>    }<a name="line.1490"></a>
+<span class="sourceLineNo">1491</span>    if (this.serverManager != null) {<a 
name="line.1491"></a>
+<span class="sourceLineNo">1492</span>      this.serverManager.stop();<a 
name="line.1492"></a>
+<span class="sourceLineNo">1493</span>    }<a name="line.1493"></a>
+<span class="sourceLineNo">1494</span>    if (this.assignmentManager != null) 
{<a name="line.1494"></a>
+<span class="sourceLineNo">1495</span>      this.assignmentManager.stop();<a 
name="line.1495"></a>
+<span class="sourceLineNo">1496</span>    }<a name="line.1496"></a>
+<span class="sourceLineNo">1497</span><a name="line.1497"></a>
+<span class="sourceLineNo">1498</span>    stopProcedureExecutor();<a 
name="line.1498"></a>
+<span class="sourceLineNo">1499</span><a name="line.1499"></a>
+<span class="sourceLineNo">1500</span>    if (this.walManager != null) {<a 
name="line.1500"></a>
+<span class="sourceLineNo">1501</span>      this.walManager.stop();<a 
name="line.1501"></a>
+<span class="sourceLineNo">1502</span>    }<a name="line.1502"></a>
+<span class="sourceLineNo">1503</span>    if (this.fileSystemManager != null) 
{<a name="line.1503"></a>
+<span class="sourceLineNo">1504</span>      this.fileSystemManager.stop();<a 
name="line.1504"></a>
+<span class="sourceLineNo">1505</span>    }<a name="line.1505"></a>
+<span class="sourceLineNo">1506</span>    if (this.mpmHost != null) {<a 
name="line.1506"></a>
+<span class="sourceLineNo">1507</span>      this.mpmHost.stop("server shutting 
down.");<a name="line.1507"></a>
+<span class="sourceLineNo">1508</span>    }<a name="line.1508"></a>
+<span class="sourceLineNo">1509</span>    if (this.regionServerTracker != 
null) {<a name="line.1509"></a>
+<span class="sourceLineNo">1510</span>      this.regionServerTracker.stop();<a 
name="line.1510"></a>
+<span class="sourceLineNo">1511</span>    }<a name="line.1511"></a>
+<span class="sourceLineNo">1512</span>  }<a name="line.1512"></a>
+<span class="sourceLineNo">1513</span><a name="line.1513"></a>
+<span class="sourceLineNo">1514</span>  private void createProcedureExecutor() 
throws IOException {<a name="line.1514"></a>
+<span class="sourceLineNo">1515</span>    MasterProcedureEnv procEnv = new 
MasterProcedureEnv(this);<a name="line.1515"></a>
+<span class="sourceLineNo">1516</span>    procedureStore =<a 
name="line.1516"></a>
+<span class="sourceLineNo">1517</span>      new WALProcedureStore(conf, new 
MasterProcedureEnv.WALStoreLeaseRecovery(this));<a name="line.1517"></a>
+<span class="sourceLineNo">1518</span>    procedureStore.registerListener(new 
ProcedureStoreListener() {<a name="line.1518"></a>
+<span class="sourceLineNo">1519</span><a name="line.1519"></a>
+<span class="sourceLineNo">1520</span>      @Override<a name="line.1520"></a>
+<span class="sourceLineNo">1521</span>      public void abortProcess() {<a 
name="line.1521"></a>
+<span class="sourceLineNo">1522</span>        abort("The Procedure Store lost 
the lease", null);<a name="line.1522"></a>
+<span class="sourceLineNo">1523</span>      }<a name="line.1523"></a>
+<span class="sourceLineNo">1524</span>    });<a name="line.1524"></a>
+<span class="sourceLineNo">1525</span>    MasterProcedureScheduler 
procedureScheduler = procEnv.getProcedureScheduler();<a name="line.1525"></a>
+<span class="sourceLineNo">1526</span>    procedureExecutor = new 
ProcedureExecutor&lt;&gt;(conf, procEnv, procedureStore, procedureScheduler);<a 
name="line.1526"></a>
+<span class="sourceLineNo">1527</span>    
configurationManager.registerObserver(procEnv);<a name="line.1527"></a>
+<span class="sourceLineNo">1528</span><a name="line.1528"></a>
+<span class="sourceLineNo">1529</span>    int cpus = 
Runtime.getRuntime().availableProcessors();<a name="line.1529"></a>
+<span class="sourceLineNo">1530</span>    final int numThreads = 
conf.getInt(MasterProcedureConstants.MASTER_PROCEDURE_THREADS, Math.max(<a 
name="line.1530"></a>
+<span class="sourceLineNo">1531</span>      (cpus &gt; 0 ? cpus / 4 : 0), 
MasterProcedureConstants.DEFAULT_MIN_MASTER_PROCEDURE_THREADS));<a 
name="line.1531"></a>
+<span class="sourceLineNo">1532</span>    final boolean abortOnCorruption =<a 
name="line.1532"></a>
+<span class="sourceLineNo">1533</span>      
conf.getBoolean(MasterProcedureConstants.EXECUTOR_ABORT_ON_CORRUPTION,<a 
name="line.1533"></a>
+<span class="sourceLineNo">1534</span>        
MasterProcedureConstants.DEFAULT_EXECUTOR_ABORT_ON_CORRUPTION);<a 
name="line.1534"></a>
+<span class="sourceLineNo">1535</span>    procedureStore.start(numThreads);<a 
name="line.1535"></a>
+<span class="sourceLineNo">1536</span>    // Just initialize it but do not 
start the workers, we will start the workers later by calling<a 
name="line.1536"></a>
+<span class="sourceLineNo">1537</span>    // startProcedureExecutor. See the 
javadoc for finishActiveMasterInitialization for more<a name="line.1537"></a>
+<span class="sourceLineNo">1538</span>    // details.<a name="line.1538"></a>
+<span class="sourceLineNo">1539</span>    procedureExecutor.init(numThreads, 
abortOnCorruption);<a name="line.1539"></a>
+<span class="sourceLineNo">1540</span>    
procEnv.getRemoteDispatcher().start();<a name="line.1540"></a>
+<span class="sourceLineNo">1541</span>  }<a name="line.1541"></a>
+<span class="sourceLineNo">1542</span><a name="line.1542"></a>
+<span class="sourceLineNo">1543</span>  private void startProcedureExecutor() 
throws IOException {<a name="line.1543"></a>
+<span class="sourceLineNo">1544</span>    procedureExecutor.startWorkers();<a 
name="line.1544"></a>
+<span class="sourceLineNo">1545</span>  }<a name="line.1545"></a>
+<span class="sourceLineNo">1546</span><a name="line.1546"></a>
+<span class="sourceLineNo">1547</span>  private void stopProcedureExecutor() 
{<a name="line.1547"></a>
+<span class="sourceLineNo">1548</span>    if (procedureExecutor != null) {<a 
name="line.1548"></a>
+<span class="sourceLineNo">1549</span>      
configurationManager.deregisterObserver(procedureExecutor.getEnvironment());<a 
name="line.1549"></a>
+<span class="sourceLineNo">1550</span>      
procedureExecutor.getEnvironment().getRemoteDispatcher().stop();<a 
name="line.1550"></a>
+<span class="sourceLineNo">1551</span>      procedureExecutor.stop();<a 
name="line.1551"></a>
+<span class="sourceLineNo">1552</span>      procedureExecutor.join();<a 
name="line.1552"></a>
+<span class="sourceLineNo">1553</span>      procedureExecutor = null;<a 
name="line.1553"></a>
 <span class="sourceLineNo">1554</span>    }<a name="line.1554"></a>
-<span class="sourceLineNo">1555</span>  }<a name="line.1555"></a>
-<span class="sourceLineNo">1556</span><a name="line.1556"></a>
-<span class="sourceLineNo">1557</span>  private void stopChores() {<a 
name="line.1557"></a>
-<span class="sourceLineNo">1558</span>    ChoreService choreService = 
getChoreService();<a name="line.1558"></a>
-<span class="sourceLineNo">1559</span>    if (choreService != null) {<a 
name="line.1559"></a>
-<span class="sourceLineNo">1560<

<TRUNCATED>