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https://issues.apache.org/jira/browse/HBASE-7034?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anoop Sam John updated HBASE-7034:
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Attachment: TestRecoverableZooKeeper.java
Unit test case which clearly reproduces the issue with retry. Ideally the test
case should not throw any Exception as the 1st call to setData actually sets
the data and then throw ConnectionLossException. The subsequent call to setData
in retry loop will throw BadVersionException from zookeeper layer but
RecoverableZK should catch it and think the op as success
> Bad version, failed OPENING to OPENED but master thinks it is open anyways
> --------------------------------------------------------------------------
>
> Key: HBASE-7034
> URL: https://issues.apache.org/jira/browse/HBASE-7034
> Project: HBase
> Issue Type: Bug
> Components: Region Assignment
> Affects Versions: 0.94.2
> Reporter: stack
> Assignee: Anoop Sam John
> Attachments: HBASE-7034_94.patch, TestRecoverableZooKeeper.java
>
>
> I have this in RS log:
> {code}
> 2012-10-22 02:21:50,698 ERROR
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler: Failed
> transitioning node
> b9,\xEE\xAE\x9BiQO\x89]+a\xE0\x7F\xB7'X?,1349052737638.9af7cfc9b15910a0b3d714bf40a3248f.
> from OPENING to OPENED -- closing region
> org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode =
> BadVersion for /hbase/unassigned/9af7cfc9b15910a0b3d714bf40a3248f
> {code}
> Master says this (it is bulk assigning):
> {code}
> ....
> 2012-10-22 02:21:40,673 DEBUG org.apache.hadoop.hbase.zookeeper.ZKUtil:
> master:10302-0xb3a862e57a503ba Set watcher on existing znode
> /hbase/unassigned/9af7cfc9b15910a0b3d714bf40a3248f
> ...
> then this
> ....
> 2012-10-22 02:23:47,089 DEBUG org.apache.hadoop.hbase.zookeeper.ZKUtil:
> master:10302-0xb3a862e57a503ba Set watcher on existing znode
> /hbase/unassigned/9af7cfc9b15910a0b3d714bf40a3248f
> ....
> 2012-10-22 02:24:34,176 DEBUG org.apache.hadoop.hbase.zookeeper.ZKUtil:
> master:10302-0xb3a862e57a503ba Retrieved 112 byte(s) of data from znode
> /hbase/unassigned/9af7cfc9b15910a0b3d714bf40a3248f and set watcher;
> region=b9,\xEE\xAE\x9BiQO\x89]+a\xE0\x7F\xB7'X?,1349052737638.9af7cfc9b15910a0b3d714bf40a3248f.,
> origin=sv4r17s44,10304,1350872216778, state=RS_ZK_REGION_OPENED
> etc.
> {code}
> Disagreement as to what is going on here.
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