Details
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Bug
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Status: Patch Available
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Major
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Resolution: Unresolved
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2.1.5
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None
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None
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None
Description
Precondition:
hbase.balancer.tablesOnMaster = true
hbase.balancer.tablesOnMaster.systemTablesOnly = true
In case of master-rs collocation HBASE_ZNODE_FILE is overwritten by regionserver process in HRegionServer#handleReportForDutyResponse() here is how it looks on master server:
[hadoop@master-node data]$ cat hbase-hadoop-master.znode
/hbase/rs/master-node,16000,1578371505720
When ZNodeClearer#clear(), the rsZNode is also splicing with the contents of the file, causing an exception:
java.lang.IllegalArgumentException: Invalid path string "/hbase/rs//hbase/rs/master-node,16000,1578371503003" caused by empty node name specified @10
at org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:99)
at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:851)
at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.delete(RecoverableZooKeeper.java:166)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.deleteNodeFailSilent(ZKUtil.java:1259)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.deleteNodeFailSilent(ZKUtil.java:1251)
at org.apache.hadoop.hbase.ZNodeClearer.clear(ZNodeClearer.java:188)
at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:144)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:3117)
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