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https://issues.apache.org/jira/browse/IMPALA-13219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18104171#comment-18104171
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ASF subversion and git services commented on IMPALA-13219:
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Commit 35cb39f9df384f5e5d68ef584a73949ccfabda66 in impala's branch
refs/heads/master from Jiyoung Yoo
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=35cb39f9d ]
IMPALA-13219: test_rows_sent_counters is flaky due to CreateResultSetTime check
The test_rows_sent_counters test expected CreateResultSetTime to be in
the range of [2400, 2600] ms for
'SELECT sleep(100) FROM functional.alltypes LIMIT 25'.
However, as noted in 'man 2 nanosleep', even after a sleep completes,
there can still be a delay before the CPU becomes free to execute the
calling thread. On loaded test environments, this CPU scheduling delay
accumulates across the 25 rows, causing create_result_ms to slightly
exceed 2600ms.
To deflake this test, this patch increases the upper limit of
create_result_ms from 2600ms to 2800ms.
Change-Id: I115e0754dfcba8b153d94c23f191f15053b2db37
Reviewed-on: http://gerrit.cloudera.org:8080/24675
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Yida Wu <[email protected]>
> test_rows_sent_counters is flaky due to CreateResultSetTime check
> -----------------------------------------------------------------
>
> Key: IMPALA-13219
> URL: https://issues.apache.org/jira/browse/IMPALA-13219
> Project: IMPALA
> Issue Type: Bug
> Reporter: Zoltán Borók-Nagy
> Assignee: Jiyoung Yoo
> Priority: Major
> Labels: broken-build
>
> test_rows_sent_counters is flaky due to CreateResultSetTime check.
> h2. Error Message
> {noformat}
> query_test/test_fetch.py:85: in test_rows_sent_counters assert 2400 <
> create_result_ms and create_result_ms < 2600 E assert (2400 < 2607.0 and
> 2607.0 < 2600)
> {noformat}
> h2. Stacktrace
> {noformat}
> query_test/test_fetch.py:85: in test_rows_sent_counters
> assert 2400 < create_result_ms and create_result_ms < 2600
> E assert (2400 < 2607.0 and 2607.0 < 2600)
> {noformat}
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