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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/12/05 14:53:26 UTC
[32/51] [partial] hbase-site git commit: Published site at
8bf966c8e936dec4d83bcbe85c5aab543f14a0df.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/27555316/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterMetaBootstrap.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterMetaBootstrap.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterMetaBootstrap.html
index 7b680e9..a730a53 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterMetaBootstrap.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterMetaBootstrap.html
@@ -73,55 +73,54 @@
<span class="sourceLineNo">065</span> throw new IllegalStateException("hbase:meta must be initialized first before we can " +<a name="line.65"></a>
<span class="sourceLineNo">066</span> "assign out its replicas");<a name="line.66"></a>
<span class="sourceLineNo">067</span> }<a name="line.67"></a>
-<span class="sourceLineNo">068</span> ServerName metaServername =<a name="line.68"></a>
-<span class="sourceLineNo">069</span> this.master.getMetaTableLocator().getMetaRegionLocation(this.master.getZooKeeper());<a name="line.69"></a>
-<span class="sourceLineNo">070</span> for (int i = 1; i < numReplicas; i++) {<a name="line.70"></a>
-<span class="sourceLineNo">071</span> // Get current meta state for replica from zk.<a name="line.71"></a>
-<span class="sourceLineNo">072</span> RegionState metaState = MetaTableLocator.getMetaRegionState(master.getZooKeeper(), i);<a name="line.72"></a>
-<span class="sourceLineNo">073</span> RegionInfo hri = RegionReplicaUtil.getRegionInfoForReplica(<a name="line.73"></a>
-<span class="sourceLineNo">074</span> RegionInfoBuilder.FIRST_META_REGIONINFO, i);<a name="line.74"></a>
-<span class="sourceLineNo">075</span> LOG.debug(hri.getRegionNameAsString() + " replica region state from zookeeper=" + metaState);<a name="line.75"></a>
-<span class="sourceLineNo">076</span> if (metaServername.equals(metaState.getServerName())) {<a name="line.76"></a>
-<span class="sourceLineNo">077</span> metaState = null;<a name="line.77"></a>
-<span class="sourceLineNo">078</span> LOG.info(hri.getRegionNameAsString() +<a name="line.78"></a>
-<span class="sourceLineNo">079</span> " old location is same as current hbase:meta location; setting location as null...");<a name="line.79"></a>
-<span class="sourceLineNo">080</span> }<a name="line.80"></a>
-<span class="sourceLineNo">081</span> // These assigns run inline. All is blocked till they complete. Only interrupt is shutting<a name="line.81"></a>
-<span class="sourceLineNo">082</span> // down hosting server which calls AM#stop.<a name="line.82"></a>
-<span class="sourceLineNo">083</span> if (metaState != null && metaState.getServerName() != null) {<a name="line.83"></a>
-<span class="sourceLineNo">084</span> // Try to retain old assignment.<a name="line.84"></a>
-<span class="sourceLineNo">085</span> assignmentManager.assign(hri, metaState.getServerName());<a name="line.85"></a>
-<span class="sourceLineNo">086</span> } else {<a name="line.86"></a>
-<span class="sourceLineNo">087</span> assignmentManager.assign(hri);<a name="line.87"></a>
-<span class="sourceLineNo">088</span> }<a name="line.88"></a>
-<span class="sourceLineNo">089</span> }<a name="line.89"></a>
-<span class="sourceLineNo">090</span> unassignExcessMetaReplica(numReplicas);<a name="line.90"></a>
-<span class="sourceLineNo">091</span> }<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span> private void unassignExcessMetaReplica(int numMetaReplicasConfigured) {<a name="line.93"></a>
-<span class="sourceLineNo">094</span> final ZKWatcher zooKeeper = master.getZooKeeper();<a name="line.94"></a>
-<span class="sourceLineNo">095</span> // unassign the unneeded replicas (for e.g., if the previous master was configured<a name="line.95"></a>
-<span class="sourceLineNo">096</span> // with a replication of 3 and now it is 2, we need to unassign the 1 unneeded replica)<a name="line.96"></a>
-<span class="sourceLineNo">097</span> try {<a name="line.97"></a>
-<span class="sourceLineNo">098</span> List<String> metaReplicaZnodes = zooKeeper.getMetaReplicaNodes();<a name="line.98"></a>
-<span class="sourceLineNo">099</span> for (String metaReplicaZnode : metaReplicaZnodes) {<a name="line.99"></a>
-<span class="sourceLineNo">100</span> int replicaId = zooKeeper.getZNodePaths().getMetaReplicaIdFromZnode(metaReplicaZnode);<a name="line.100"></a>
-<span class="sourceLineNo">101</span> if (replicaId >= numMetaReplicasConfigured) {<a name="line.101"></a>
-<span class="sourceLineNo">102</span> RegionState r = MetaTableLocator.getMetaRegionState(zooKeeper, replicaId);<a name="line.102"></a>
-<span class="sourceLineNo">103</span> LOG.info("Closing excess replica of meta region " + r.getRegion());<a name="line.103"></a>
-<span class="sourceLineNo">104</span> // send a close and wait for a max of 30 seconds<a name="line.104"></a>
-<span class="sourceLineNo">105</span> ServerManager.closeRegionSilentlyAndWait(master.getClusterConnection(),<a name="line.105"></a>
-<span class="sourceLineNo">106</span> r.getServerName(), r.getRegion(), 30000);<a name="line.106"></a>
-<span class="sourceLineNo">107</span> ZKUtil.deleteNode(zooKeeper, zooKeeper.getZNodePaths().getZNodeForReplica(replicaId));<a name="line.107"></a>
-<span class="sourceLineNo">108</span> }<a name="line.108"></a>
-<span class="sourceLineNo">109</span> }<a name="line.109"></a>
-<span class="sourceLineNo">110</span> } catch (Exception ex) {<a name="line.110"></a>
-<span class="sourceLineNo">111</span> // ignore the exception since we don't want the master to be wedged due to potential<a name="line.111"></a>
-<span class="sourceLineNo">112</span> // issues in the cleanup of the extra regions. We can do that cleanup via hbck or manually<a name="line.112"></a>
-<span class="sourceLineNo">113</span> LOG.warn("Ignoring exception " + ex);<a name="line.113"></a>
-<span class="sourceLineNo">114</span> }<a name="line.114"></a>
-<span class="sourceLineNo">115</span> }<a name="line.115"></a>
-<span class="sourceLineNo">116</span>}<a name="line.116"></a>
+<span class="sourceLineNo">068</span> ServerName metaServername = MetaTableLocator.getMetaRegionLocation(this.master.getZooKeeper());<a name="line.68"></a>
+<span class="sourceLineNo">069</span> for (int i = 1; i < numReplicas; i++) {<a name="line.69"></a>
+<span class="sourceLineNo">070</span> // Get current meta state for replica from zk.<a name="line.70"></a>
+<span class="sourceLineNo">071</span> RegionState metaState = MetaTableLocator.getMetaRegionState(master.getZooKeeper(), i);<a name="line.71"></a>
+<span class="sourceLineNo">072</span> RegionInfo hri = RegionReplicaUtil.getRegionInfoForReplica(<a name="line.72"></a>
+<span class="sourceLineNo">073</span> RegionInfoBuilder.FIRST_META_REGIONINFO, i);<a name="line.73"></a>
+<span class="sourceLineNo">074</span> LOG.debug(hri.getRegionNameAsString() + " replica region state from zookeeper=" + metaState);<a name="line.74"></a>
+<span class="sourceLineNo">075</span> if (metaServername.equals(metaState.getServerName())) {<a name="line.75"></a>
+<span class="sourceLineNo">076</span> metaState = null;<a name="line.76"></a>
+<span class="sourceLineNo">077</span> LOG.info(hri.getRegionNameAsString() +<a name="line.77"></a>
+<span class="sourceLineNo">078</span> " old location is same as current hbase:meta location; setting location as null...");<a name="line.78"></a>
+<span class="sourceLineNo">079</span> }<a name="line.79"></a>
+<span class="sourceLineNo">080</span> // These assigns run inline. All is blocked till they complete. Only interrupt is shutting<a name="line.80"></a>
+<span class="sourceLineNo">081</span> // down hosting server which calls AM#stop.<a name="line.81"></a>
+<span class="sourceLineNo">082</span> if (metaState != null && metaState.getServerName() != null) {<a name="line.82"></a>
+<span class="sourceLineNo">083</span> // Try to retain old assignment.<a name="line.83"></a>
+<span class="sourceLineNo">084</span> assignmentManager.assign(hri, metaState.getServerName());<a name="line.84"></a>
+<span class="sourceLineNo">085</span> } else {<a name="line.85"></a>
+<span class="sourceLineNo">086</span> assignmentManager.assign(hri);<a name="line.86"></a>
+<span class="sourceLineNo">087</span> }<a name="line.87"></a>
+<span class="sourceLineNo">088</span> }<a name="line.88"></a>
+<span class="sourceLineNo">089</span> unassignExcessMetaReplica(numReplicas);<a name="line.89"></a>
+<span class="sourceLineNo">090</span> }<a name="line.90"></a>
+<span class="sourceLineNo">091</span><a name="line.91"></a>
+<span class="sourceLineNo">092</span> private void unassignExcessMetaReplica(int numMetaReplicasConfigured) {<a name="line.92"></a>
+<span class="sourceLineNo">093</span> final ZKWatcher zooKeeper = master.getZooKeeper();<a name="line.93"></a>
+<span class="sourceLineNo">094</span> // unassign the unneeded replicas (for e.g., if the previous master was configured<a name="line.94"></a>
+<span class="sourceLineNo">095</span> // with a replication of 3 and now it is 2, we need to unassign the 1 unneeded replica)<a name="line.95"></a>
+<span class="sourceLineNo">096</span> try {<a name="line.96"></a>
+<span class="sourceLineNo">097</span> List<String> metaReplicaZnodes = zooKeeper.getMetaReplicaNodes();<a name="line.97"></a>
+<span class="sourceLineNo">098</span> for (String metaReplicaZnode : metaReplicaZnodes) {<a name="line.98"></a>
+<span class="sourceLineNo">099</span> int replicaId = zooKeeper.getZNodePaths().getMetaReplicaIdFromZnode(metaReplicaZnode);<a name="line.99"></a>
+<span class="sourceLineNo">100</span> if (replicaId >= numMetaReplicasConfigured) {<a name="line.100"></a>
+<span class="sourceLineNo">101</span> RegionState r = MetaTableLocator.getMetaRegionState(zooKeeper, replicaId);<a name="line.101"></a>
+<span class="sourceLineNo">102</span> LOG.info("Closing excess replica of meta region " + r.getRegion());<a name="line.102"></a>
+<span class="sourceLineNo">103</span> // send a close and wait for a max of 30 seconds<a name="line.103"></a>
+<span class="sourceLineNo">104</span> ServerManager.closeRegionSilentlyAndWait(master.getClusterConnection(),<a name="line.104"></a>
+<span class="sourceLineNo">105</span> r.getServerName(), r.getRegion(), 30000);<a name="line.105"></a>
+<span class="sourceLineNo">106</span> ZKUtil.deleteNode(zooKeeper, zooKeeper.getZNodePaths().getZNodeForReplica(replicaId));<a name="line.106"></a>
+<span class="sourceLineNo">107</span> }<a name="line.107"></a>
+<span class="sourceLineNo">108</span> }<a name="line.108"></a>
+<span class="sourceLineNo">109</span> } catch (Exception ex) {<a name="line.109"></a>
+<span class="sourceLineNo">110</span> // ignore the exception since we don't want the master to be wedged due to potential<a name="line.110"></a>
+<span class="sourceLineNo">111</span> // issues in the cleanup of the extra regions. We can do that cleanup via hbck or manually<a name="line.111"></a>
+<span class="sourceLineNo">112</span> LOG.warn("Ignoring exception " + ex);<a name="line.112"></a>
+<span class="sourceLineNo">113</span> }<a name="line.113"></a>
+<span class="sourceLineNo">114</span> }<a name="line.114"></a>
+<span class="sourceLineNo">115</span>}<a name="line.115"></a>