GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/12795
[SPARK-15010][CORE] new accumulator shoule be tolerant of local RPC message
delivery
## What changes were proposed in this pull request?
The RPC framework will not serialize and deserialize messages in local
mode, we should not cal `acc.value` when receive heartbeat message, because the
serialization hook of new accumulator may not be triggered and the
`atDriverSide` flag may not be set.
## How was this patch tested?
tested it locally via spark shell
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark bug
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12795.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 #12795
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commit 9252904ab084a8aadd7ca17b37f5ace257e91e1e
Author: Wenchen Fan <[email protected]>
Date: 2016-04-29T23:47:48Z
new accumulator shoule be tolerant of local RPC message delivery
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