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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/10/19 14:53:28 UTC
[17/46] hbase-site git commit: Published site at
05d22ed960204183fbd9bd16f1dbca6410ccde76.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3649682c/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html
index c307d41..d82bfd8 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.html
@@ -1020,8 +1020,8 @@
<span class="sourceLineNo">1012</span> protected ClusterMetrics clusterStatus = null;<a name="line.1012"></a>
<span class="sourceLineNo">1013</span> protected ServerName masterServerName;<a name="line.1013"></a>
<span class="sourceLineNo">1014</span> protected MasterServices services;<a name="line.1014"></a>
-<span class="sourceLineNo">1015</span> protected boolean tablesOnMaster;<a name="line.1015"></a>
-<span class="sourceLineNo">1016</span> protected boolean onlySystemTablesOnMaster;<a name="line.1016"></a>
+<span class="sourceLineNo">1015</span> protected boolean onlySystemTablesOnMaster;<a name="line.1015"></a>
+<span class="sourceLineNo">1016</span> protected boolean maintenanceMode;<a name="line.1016"></a>
<span class="sourceLineNo">1017</span><a name="line.1017"></a>
<span class="sourceLineNo">1018</span> @Override<a name="line.1018"></a>
<span class="sourceLineNo">1019</span> public void setConf(Configuration conf) {<a name="line.1019"></a>
@@ -1033,627 +1033,626 @@
<span class="sourceLineNo">1025</span> if (overallSlop < 0) overallSlop = 0;<a name="line.1025"></a>
<span class="sourceLineNo">1026</span> else if (overallSlop > 1) overallSlop = 1;<a name="line.1026"></a>
<span class="sourceLineNo">1027</span><a name="line.1027"></a>
-<span class="sourceLineNo">1028</span> this.tablesOnMaster = LoadBalancer.isTablesOnMaster(this.config);<a name="line.1028"></a>
-<span class="sourceLineNo">1029</span> this.onlySystemTablesOnMaster = LoadBalancer.isSystemTablesOnlyOnMaster(this.config);<a name="line.1029"></a>
-<span class="sourceLineNo">1030</span> // If system tables on master, implies tablesOnMaster = true.<a name="line.1030"></a>
-<span class="sourceLineNo">1031</span> if (this.onlySystemTablesOnMaster && !this.tablesOnMaster) {<a name="line.1031"></a>
-<span class="sourceLineNo">1032</span> LOG.warn("Set " + TABLES_ON_MASTER + "=true because " + SYSTEM_TABLES_ON_MASTER + "=true");<a name="line.1032"></a>
-<span class="sourceLineNo">1033</span> this.tablesOnMaster = true;<a name="line.1033"></a>
-<span class="sourceLineNo">1034</span> }<a name="line.1034"></a>
-<span class="sourceLineNo">1035</span> this.rackManager = new RackManager(getConf());<a name="line.1035"></a>
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-<span class="sourceLineNo">1037</span> regionFinder.setConf(conf);<a name="line.1037"></a>
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-<span class="sourceLineNo">1039</span> // Print out base configs. Don't print overallSlop since it for simple balancer exclusively.<a name="line.1039"></a>
-<span class="sourceLineNo">1040</span> LOG.info("slop=" + this.slop + ", tablesOnMaster=" + this.tablesOnMaster +<a name="line.1040"></a>
-<span class="sourceLineNo">1041</span> ", systemTablesOnMaster=" + this.onlySystemTablesOnMaster);<a name="line.1041"></a>
+<span class="sourceLineNo">1028</span> this.onlySystemTablesOnMaster = LoadBalancer.isSystemTablesOnlyOnMaster(this.config);<a name="line.1028"></a>
+<span class="sourceLineNo">1029</span><a name="line.1029"></a>
+<span class="sourceLineNo">1030</span> this.rackManager = new RackManager(getConf());<a name="line.1030"></a>
+<span class="sourceLineNo">1031</span> if (useRegionFinder) {<a name="line.1031"></a>
+<span class="sourceLineNo">1032</span> regionFinder.setConf(conf);<a name="line.1032"></a>
+<span class="sourceLineNo">1033</span> }<a name="line.1033"></a>
+<span class="sourceLineNo">1034</span> // Print out base configs. Don't print overallSlop since it for simple balancer exclusively.<a name="line.1034"></a>
+<span class="sourceLineNo">1035</span> LOG.info("slop={}, systemTablesOnMaster={}",<a name="line.1035"></a>
+<span class="sourceLineNo">1036</span> this.slop, this.onlySystemTablesOnMaster);<a name="line.1036"></a>
+<span class="sourceLineNo">1037</span> }<a name="line.1037"></a>
+<span class="sourceLineNo">1038</span><a name="line.1038"></a>
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<span class="sourceLineNo">1042</span> }<a name="line.1042"></a>
<span class="sourceLineNo">1043</span><a name="line.1043"></a>
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-<span class="sourceLineNo">1046</span> this.overallSlop = conf.getFloat("hbase.regions.overallSlop", slop);<a name="line.1046"></a>
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-<span class="sourceLineNo">1049</span> /**<a name="line.1049"></a>
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-<span class="sourceLineNo">1057</span> /**<a name="line.1057"></a>
-<span class="sourceLineNo">1058</span> * Balance the regions that should be on master regionserver.<a name="line.1058"></a>
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-<span class="sourceLineNo">1062</span> List<RegionPlan> plans = null;<a name="line.1062"></a>
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-<span class="sourceLineNo">1064</span> if (regions != null) {<a name="line.1064"></a>
-<span class="sourceLineNo">1065</span> Iterator<ServerName> keyIt = null;<a name="line.1065"></a>
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-<span class="sourceLineNo">1069</span> // Find a non-master regionserver to host the region<a name="line.1069"></a>
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-<span class="sourceLineNo">1073</span> ServerName dest = keyIt.next();<a name="line.1073"></a>
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-<span class="sourceLineNo">1075</span> if (!keyIt.hasNext()) {<a name="line.1075"></a>
-<span class="sourceLineNo">1076</span> keyIt = clusterMap.keySet().iterator();<a name="line.1076"></a>
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-<span class="sourceLineNo">1078</span> dest = keyIt.next();<a name="line.1078"></a>
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-<span class="sourceLineNo">1080</span><a name="line.1080"></a>
-<span class="sourceLineNo">1081</span> // Move this region away from the master regionserver<a name="line.1081"></a>
-<span class="sourceLineNo">1082</span> RegionPlan plan = new RegionPlan(region, masterServerName, dest);<a name="line.1082"></a>
-<span class="sourceLineNo">1083</span> if (plans == null) {<a name="line.1083"></a>
-<span class="sourceLineNo">1084</span> plans = new ArrayList<>();<a name="line.1084"></a>
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-<span class="sourceLineNo">1086</span> plans.add(plan);<a name="line.1086"></a>
-<span class="sourceLineNo">1087</span> }<a name="line.1087"></a>
-<span class="sourceLineNo">1088</span> }<a name="line.1088"></a>
-<span class="sourceLineNo">1089</span> for (Map.Entry<ServerName, List<RegionInfo>> server: clusterMap.entrySet()) {<a name="line.1089"></a>
-<span class="sourceLineNo">1090</span> if (masterServerName.equals(server.getKey())) continue;<a name="line.1090"></a>
-<span class="sourceLineNo">1091</span> for (RegionInfo region: server.getValue()) {<a name="line.1091"></a>
-<span class="sourceLineNo">1092</span> if (!shouldBeOnMaster(region)) continue;<a name="line.1092"></a>
-<span class="sourceLineNo">1093</span><a name="line.1093"></a>
-<span class="sourceLineNo">1094</span> // Move this region to the master regionserver<a name="line.1094"></a>
-<span class="sourceLineNo">1095</span> RegionPlan plan = new RegionPlan(region, server.getKey(), masterServerName);<a name="line.1095"></a>
-<span class="sourceLineNo">1096</span> if (plans == null) {<a name="line.1096"></a>
-<span class="sourceLineNo">1097</span> plans = new ArrayList<>();<a name="line.1097"></a>
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-<span class="sourceLineNo">1099</span> plans.add(plan);<a name="line.1099"></a>
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-<span class="sourceLineNo">1102</span> return plans;<a name="line.1102"></a>
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-<span class="sourceLineNo">1104</span><a name="line.1104"></a>
-<span class="sourceLineNo">1105</span> /**<a name="line.1105"></a>
-<span class="sourceLineNo">1106</span> * If master is configured to carry system tables only, in here is<a name="line.1106"></a>
-<span class="sourceLineNo">1107</span> * where we figure what to assign it.<a name="line.1107"></a>
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-<span class="sourceLineNo">1109</span> protected Map<ServerName, List<RegionInfo>> assignMasterSystemRegions(<a name="line.1109"></a>
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-<span class="sourceLineNo">1114</span> Map<ServerName, List<RegionInfo>> assignments = new TreeMap<>();<a name="line.1114"></a>
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-<span class="sourceLineNo">1117</span> assignments.put(masterServerName, new ArrayList<>());<a name="line.1117"></a>
-<span class="sourceLineNo">1118</span> for (RegionInfo region : regions) {<a name="line.1118"></a>
-<span class="sourceLineNo">1119</span> if (shouldBeOnMaster(region)) {<a name="line.1119"></a>
-<span class="sourceLineNo">1120</span> assignments.get(masterServerName).add(region);<a name="line.1120"></a>
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