GitHub user chiwanpark opened a pull request:
https://github.com/apache/flink/pull/751
[FLINK-2076] [runtime] Fix memory leakage in MutableHashTable
Hi. This PR contains a bug fix for
[FLINK-2076](https://issues.apache.org/jira/browse/FLINK-2076).
When `prepareNextPartition` method runs with some pending partitions, the
memory leakage can occur at `memory.add(getNextBuffer())` statement (Line 515,
516). In common case, there are extra memory spaces for hash table so first and
second call of `getNextBuffer()` return memory segment.
But in extreme case such as a case described in JIRA, the second call of
`getNextBuffer()` can return null and this null makes the memory leakage.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chiwanpark/flink FLINK-2076
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/751.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #751
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commit e9aa4d9a1ca36178f3f860b1997d5f92ada51c3f
Author: Chiwan Park <chiwanp...@icloud.com>
Date: 2015-05-30T18:27:17Z
[FLINK-2076] [runtime] Fix memory leakage in MutableHashTable
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