Denes Arvay created FLUME-2991:
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Summary: ExecSource command execution starts before starting the
sourceCounter
Key: FLUME-2991
URL: https://issues.apache.org/jira/browse/FLUME-2991
Project: Flume
Issue Type: Bug
Components: Sinks+Sources
Reporter: Denes Arvay
Assignee: Denes Arvay
It causes invalid data to appear in JMX monitoring and also makes
`TestExecSource.testMonitoredCounterGroup` failing/flaky.
starting the `sourceCounter` before submitting the `ExecRunnable` to the
`executor` solves the problem.
https://github.com/apache/flume/blob/trunk/flume-ng-core/src/main/java/org/apache/flume/source/ExecSource.java#L176-L183
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