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Posted to issues@hbase.apache.org by "stack (Resolved) (JIRA)" <ji...@apache.org> on 2012/03/22 01:05:33 UTC
[jira] [Resolved] (HBASE-5594) Unable to stop a master that's
waiting on -ROOT- during initialization
[ https://issues.apache.org/jira/browse/HBASE-5594?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-5594.
--------------------------
Resolution: Fixed
Fix Version/s: (was: 0.92.2)
(was: 0.94.0)
Going to claim this fixed by hbase-5328. It has fixup in master to take care of this issue (and a test). Was needed making a testable standalone master.
> Unable to stop a master that's waiting on -ROOT- during initialization
> ----------------------------------------------------------------------
>
> Key: HBASE-5594
> URL: https://issues.apache.org/jira/browse/HBASE-5594
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.92.1
> Reporter: Jean-Daniel Cryans
> Fix For: 0.96.0
>
>
> We just had a case where the master (that was just restarted) was having a hard time assigning -ROOT- (all the PRI handlers were full already) so we tried to shutdown the cluster and even though all the RS closed down properly the master kept running being blocked on:
> {noformat}
> "master-sv4r20s12,10302,1331916142866" prio=10 tid=0x00007f3708008800 nid=0x4b20 in Object.wait() [0x00007f370d1d0000]
> java.lang.Thread.State: WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <0x00000006030be3f8> (a org.apache.hadoop.hbase.zookeeper.RootRegionTracker)
> at java.lang.Object.wait(Object.java:485)
> at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.blockUntilAvailable(ZooKeeperNodeTracker.java:131)
> - locked <0x00000006030be3f8> (a org.apache.hadoop.hbase.zookeeper.RootRegionTracker)
> at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.blockUntilAvailable(ZooKeeperNodeTracker.java:104)
> - locked <0x00000006030be3f8> (a org.apache.hadoop.hbase.zookeeper.RootRegionTracker)
> at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForRoot(CatalogTracker.java:313)
> at org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:571)
> at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:501)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:336)
> at java.lang.Thread.run(Thread.java:662)
> {noformat}
> I haven't checked the 0.90 code, we got this on 0.92.1
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