GitHub user zsxwing opened a pull request:
https://github.com/apache/spark/pull/8294
[SPARK-9504][Streaming]Fix a race condition that startReceiver may happen
before setting trackerState to Started
Test failure:
https://amplab.cs.berkeley.edu/jenkins/job/Spark-Master-Maven-with-YARN/HADOOP_PROFILE=hadoop-2.4,label=spark-test/3305/testReport/junit/org.apache.spark.streaming/StreamingContextSuite/stop_gracefully/
There is a race condition that setting `trackerState` to `Started` could
happen after calling `startReceiver`. Then `startReceiver` won't start the
receivers because it uses `! isTrackerStarted` to check if ReceiverTracker is
stopping or stopped. But actually, `trackerState` is `Initialized` and will be
changed to `Started` soon.
Therefore, we should use `isTrackerStopping || isTrackerStopped`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zsxwing/spark SPARK-9504
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8294.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 #8294
----
commit c1a6126da012701755bb5a54a4d51015e53e8c48
Author: zsxwing <[email protected]>
Date: 2015-08-19T01:26:04Z
Fix a race condition that startReceiver may happen before setting
trackerState to Started
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