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