[HBASE-7034] Bad version, failed OPENING to OPENED but master thinks it is open anyways

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.94.2
• Fix Version/s: 0.94.5, 0.95.0
• Component/s: Region Assignment
• Hadoop Flags: Reviewed
• Assignee: Anoop Sam John
• Reporter: Michael Stack
• Created: 23/Oct/12 06:37
• Updated: 26/Feb/13 08:27
• Resolved: 18/Jan/13 00:03

Description

I have this in RS log:

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

Master says this (it is bulk assigning):

....
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.

Disagreement as to what is going on here.