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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2013/05/02 00:02:16 UTC
[jira] [Commented] (HBASE-8422) Master won't go down. Stuck
waiting on .META. to come on line.
[ https://issues.apache.org/jira/browse/HBASE-8422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13646990#comment-13646990 ]
stack commented on HBASE-8422:
------------------------------
+1 on commit for 0.94 [~lhofhansl]
> Master won't go down. Stuck waiting on .META. to come on line.
> ---------------------------------------------------------------
>
> Key: HBASE-8422
> URL: https://issues.apache.org/jira/browse/HBASE-8422
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.95.0
> Reporter: stack
> Assignee: rajeshbabu
> Fix For: 0.98.0, 0.94.8, 0.95.1
>
> Attachments: HBASE-8422_2.patch, HBASE-8422_3.patch, HBASE-8422_94.patch, HBASE-8422.patch
>
>
> Master came up w/ no regionservers. I then tried to shut it down. You can see in below that it started to go down....
> {code}
> 2013-04-24 14:28:49,770 INFO [IPC Server handler 7 on 60000] org.apache.hadoop.hbase.master.HMaster: Cluster shutdown requested
> 2013-04-24 14:28:49,815 INFO [master-stack-1.ent.cloudera.com,60000,1366838923135] org.apache.hadoop.hbase.master.ServerManager: Finished waiting for region servers count to settle; checked in 0, slept for 2818 ms, expecting minimum of 1, maximum of 2147483647, master is stopped.
> 2013-04-24 14:28:49,815 WARN [master-stack-1.ent.cloudera.com,60000,1366838923135] org.apache.hadoop.hbase.master.MasterFileSystem: Master stopped while splitting logs
> 2013-04-24 14:28:50,104 INFO [stack-1.ent.cloudera.com,60000,1366838923135.splitLogManagerTimeoutMonitor] org.apache.hadoop.hbase.master.SplitLogManager$TimeoutMonitor: stack-1.ent.cloudera.com,60000,1366838923135.splitLogManagerTimeoutMonitor exiting
> 2013-04-24 14:28:50,850 INFO [master-stack-1.ent.cloudera.com,60000,1366838923135] org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker: Unsetting META region location in ZooKeeper
> 2013-04-24 14:28:50,884 WARN [master-stack-1.ent.cloudera.com,60000,1366838923135] org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Node /hbase/meta-region-server already deleted, retry=false
> 2013-04-24 14:28:50,884 INFO [master-stack-1.ent.cloudera.com,60000,1366838923135] org.apache.hadoop.hbase.master.AssignmentManager: Cluster shutdown is set; skipping assign of .META.,,1.1028785192
> 2013-04-24 14:28:50,884 INFO [master-stack-1.ent.cloudera.com,60000,1366838923135] org.apache.hadoop.hbase.master.ServerManager: AssignmentManager hasn't finished failover cleanup
> 2013-04-24 14:29:46,188 INFO [master-stack-1.ent.cloudera.com,60000,1366838923135.oldLogCleaner] org.apache.hadoop.hbase.master.cleaner.LogCleaner: master-stack-1.ent.cloudera.com,60000,1366838923135.oldLogCleaner exiting
> 2013-04-24 14:29:46,193 INFO [master-stack-1.ent.cloudera.com,60000,1366838923135.archivedHFileCleaner] org.apache.hadoop.hbase.master.cleaner.HFileCleaner: master-stack-1.ent.cloudera.com,60000,1366838923135.archivedHFileCleaner exiting
> {code}
> ... but not it is stuck.
> We keep looping here:
> {code}
> "master-stack-1.ent.cloudera.com,60000,1366838923135" prio=10 tid=0x00007f154853f000 nid=0x18b in Object.wait() [0x00007f1545fde000]
> java.lang.Thread.State: TIMED_WAITING (on object monitor)
> at java.lang.Object.wait(Native Method)
> - waiting on <0x00000000c727d738> (a org.apache.hadoop.hbase.zookeeper.MetaRegionTracker)
> at org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.blockUntilAvailable(ZooKeeperNodeTracker.java:161)
> - locked <0x00000000c727d738> (a org.apache.hadoop.hbase.zookeeper.MetaRegionTracker)
> at org.apache.hadoop.hbase.zookeeper.MetaRegionTracker.waitMetaRegionLocation(MetaRegionTracker.java:105)
> at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:250)
> at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:299)
> at org.apache.hadoop.hbase.master.HMaster.enableSSHandWaitForMeta(HMaster.java:905)
> at org.apache.hadoop.hbase.master.HMaster.assignMeta(HMaster.java:879)
> at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:764)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:522)
> at java.lang.Thread.run(Thread.java:722)
> {code}
> Odd. It is supposed to be checking the 'stopped' flag; maybe it has wrong stop flag.
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