Double play of OpenedRegionHandler for a single region; fails second time
through and aborts Master
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Key: HBASE-3159
URL: https://issues.apache.org/jira/browse/HBASE-3159
Project: HBase
Issue Type: Bug
Reporter: stack
Priority: Blocker
Fix For: 0.90.0
Here is master log with annotations: http://people.apache.org/~stack/master.txt
Region in question is:
b8827a67a9d446f345095d25e1f375f7
The running code is doctored in that I've added in a bit of logging -- zk in
particular -- and I've also removed what I thought was a provocation of this
condition, reassign inside in an assign if server has gone away when we try the
open rpc (Turns out we have the condition even w/o this code in place).
The log starts where the region in question timesout in RIT.
We assign it to 186.
Notice how we see 'Handling transition' for this region TWICE. This means two
OpenedRegionHandlers will be scheduled -- and so the failure to delete a znode
already gone.
As best I can tell, the watcher for this region is triggered once only -- which
is odd because how then the double scheduling of OpenedRegionHandler but also,
why am I not seeing OPENING, OPENING, OPENED and only what I presume is an
OPENED?
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