GitHub user JoshRosen opened a pull request:
https://github.com/apache/spark/pull/9982
[SPARK-12001] Allow partially-stopped StreamingContext to be completely
stopped
If `StreamingContext.stop()` is interrupted midway through the call, the
context will be marked as stopped but certain state will have not been cleaned
up. Because `state = STOPPED` will be set, subsequent `stop()` calls will be
unable to finish stopping the context, preventing any new StreamingContexts
from being created.
This patch addresses this issue by introducing a new `PARTIALLY_STOPPED`
state, which allows `stop()` to execute a second time in order to finish
stopping the context.
I discovered this issue by examining logs from a failed Jenkins run in
which this race condition occurred in `FailureSuite`, leaking an unstoppable
context and causing all subsequent tests to fail.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/JoshRosen/spark SPARK-12001
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9982.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 #9982
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commit 77df0ce8885c84e5e6e418774d0bcd8897e788cd
Author: Josh Rosen <[email protected]>
Date: 2015-11-26T00:15:21Z
Allow recovery from partial stop of StreamingContext.
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