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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18103) [AMv2] If Master gives OPEN to another, if original eventually succeeds, Master will kill it
Date Wed, 24 May 2017 23:09:04 GMT
stack created HBASE-18103:
-----------------------------

             Summary: [AMv2] If Master gives OPEN to another, if original eventually succeeds,
Master will kill it
                 Key: HBASE-18103
                 URL: https://issues.apache.org/jira/browse/HBASE-18103
             Project: HBase
          Issue Type: Sub-task
            Reporter: stack


If a RS is slow to open a Region, the Master will give the Region to another to open it (In
this case, was a massive set of edits to process and a load of StoreFiles to open...). Should
the original RS succeed with its open eventually, on reporting the master the successful open,
the Master currently kills the RS because the region is supposed to be elsewhere.

This is an easy fix.

The RS does not fully open a Region until Master gives it the go so just close the region
if master rejects the open....

See '6.1.1 If Master gives Region to another to Open, old RS will be kill itself on reject
by Master; easy fix!' in https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.qtfojp9774h



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