Himanshu Gahlaut created LENS-685:
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Summary: Assert on failed queries counter will fail intermittently
Key: LENS-685
URL: https://issues.apache.org/jira/browse/LENS-685
Project: Apache Lens
Issue Type: Sub-task
Reporter: Himanshu Gahlaut
TestQueryService#testLaunchFail
{code}
assertTrue(metricsSvc.getTotalFailedQueries() >= failedQueries + 1);
{code}
This assert is asserting that a counter on totalFailedQueries should be
incremented by 1, when a query fails.
The counter is incremented in an asynchronous thread AsyncQueryStatusListener.
If this assert is executed before the counter is incremented in asynchronous
thread, then this assert will fail.
To reproduce this in master branch, introduce a infinite sleep before
incrementing the counter at this line:
https://github.com/apache/incubator-lens/blob/apache-lens-2.2.0-beta-incubating/lens-server/src/main/java/org/apache/lens/server/metrics/MetricsServiceImpl.java#L181
Run TestQueryService#testLaunchFail after this change the above assert will
fail in master branch.
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