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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9197) TestAdmin#testShouldCloseTheRegionBasedOnTheEncodedRegionName shuts down the namespaces table and never starts it up again
Date Tue, 13 Aug 2013 00:11:48 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13737588#comment-13737588
] 

stack commented on HBASE-9197:
------------------------------

A bunch of threads are blocked here in Master:

{code}
58255 NumberFormatException: "RpcServer.handler=0,port=57659" daemon prio=5 tid=7fa45524b000
nid=0x123ddb000 waiting for monitor entry [123dda000]
58256    java.lang.Thread.State: BLOCKED (on object monitor)
58257 ,...at org.apache.hadoop.hbase.master.TableNamespaceManager.get(TableNamespaceManager.java:111)
58258 ,...- waiting to lock <78df23790> (a org.apache.hadoop.hbase.master.TableNamespaceManager)
58259 ,...at org.apache.hadoop.hbase.master.HMaster.getNamespaceDescriptor(HMaster.java:3070)
58260 ,...at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1773)
58261 ,...at org.apache.hadoop.hbase.master.HMaster.createTable(HMaster.java:1814)
58262 ,...at org.apache.hadoop.hbase.protobuf.generated.MasterAdminProtos$MasterAdminService$2.callBlockingMethod(MasterAdminProtos.java:26698)
58263 ,...at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2147)
58264 ,...at org.apache.hadoop.hbase.ipc.RpcServer$Handler.run(RpcServer.java:1854)
{code}

I got some output and saw that we were shutting down in ns region in this test because we
were only avoiding meta (not system tables).
                
> TestAdmin#testShouldCloseTheRegionBasedOnTheEncodedRegionName shuts down the namespaces
table and never starts it up again
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9197
>                 URL: https://issues.apache.org/jira/browse/HBASE-9197
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>         Attachments: 9197.txt
>
>
> Because the ns table is offline, all subsequent tests just keep retrying and eventually
fail (This contribs to the hung TestAdmin we've been seeing of late).

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