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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-3355) Stopping a stopped cluster leaks an HMaster
Date Tue, 14 Dec 2010 19:09:00 GMT
Stopping a stopped cluster leaks an HMaster
-------------------------------------------

                 Key: HBASE-3355
                 URL: https://issues.apache.org/jira/browse/HBASE-3355
             Project: HBase
          Issue Type: Bug
            Reporter: Jean-Daniel Cryans
            Assignee: Jean-Daniel Cryans
             Fix For: 0.90.0


This is a very annoying bug, I have two clusters running on the same machine so I often stop
the wrong one (both are for testing). When it happens, it leaves a HMaster running with this:

{noformat}

"main" prio=10 tid=0x0000000041dd3800 nid=0x55d5 in Object.wait() [0x00007f3c7165a000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	- waiting on <0x00007f3bac94f528> (a java.lang.Object)
	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:382)
	- locked <0x00007f3bac94f528> (a java.lang.Object)
	at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:90)
	at org.apache.hadoop.hbase.master.HMasterCommandLine.stopMaster(HMasterCommandLine.java:160)
	at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:104)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
	at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:76)
	at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:1058)
{noformat}

And if I happen to restart that cluster right away, IT KILLS IT!

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