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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13703) ReplicateContext should not be a member of ReplicationSource
Date Sun, 17 May 2015 20:10:00 GMT
Lars Hofhansl created HBASE-13703:
-------------------------------------

             Summary: ReplicateContext should not be a member of ReplicationSource
                 Key: HBASE-13703
                 URL: https://issues.apache.org/jira/browse/HBASE-13703
             Project: HBase
          Issue Type: Bug
            Reporter: Lars Hofhansl


The ReplicateContext object is created once per ReplicationSource and then reused when we
have something to ship to the sinks.

This is a misguided optimization. ReplicateContext is very lightweight (definitely compared
to the all the work and copying the ReplicationSource is doing) and, crucially, it prevent
the the entries array from being collected after it was successfully copied to the sink, wasting
potentially a lot of heap.
The entries array itself holds reference to WAL entries on the heap, that now also cannot
be collected.



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