In master when handling a split, the offline of parent and online of children
is not done atomically
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Key: HBASE-3284
URL: https://issues.apache.org/jira/browse/HBASE-3284
Project: HBase
Issue Type: Bug
Components: master
Affects Versions: 0.90.0
Reporter: Jonathan Gray
Fix For: 0.92.0
In AssignmentManager.handleSplitReport() we do:
{noformat}
regionOffline(parent);
regionOnline(a, hsi);
regionOnline(b, hsi);
{noformat}
Within each of these, there is locking, but there is no locking around this
entire operation. There should be.
This might be the cause of HBASE-3278
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