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Posted to issues@spark.apache.org by "Shixiong Zhu (JIRA)" <ji...@apache.org> on 2015/08/19 03:41:45 UTC
[jira] [Created] (SPARK-10102) Fix a race condition that
startReceiver may happen before setting trackerState to Started
Shixiong Zhu created SPARK-10102:
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Summary: Fix a race condition that startReceiver may happen before setting trackerState to Started
Key: SPARK-10102
URL: https://issues.apache.org/jira/browse/SPARK-10102
Project: Spark
Issue Type: Bug
Components: Streaming
Reporter: Shixiong Zhu
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`.
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