[ https://issues.apache.org/jira/browse/HBASE-5594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13234978#comment-13234978 ]
stack commented on HBASE-5594: ------------------------------ Not necessary. I want to get it into trunk though, hbase-5328 that is (which fixes this) > 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: 0.92.2, 0.94.0, 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 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira