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https://issues.apache.org/jira/browse/IMPALA-9884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17217255#comment-17217255
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Tim Armstrong commented on IMPALA-9884:
---------------------------------------
On that executor we see that it finished in a few seconds.
{noformat}
I1017 01:11:24.338460 24753 control-service.cc:142]
1b4e1ee5d51fc461:1221932500000000] ExecQueryFInstances():
query_id=1b4e1ee5d51fc461:1221932500000000
coord=impala-ec2-centos74-m5-4xlarge-ondemand-1925.vpc.cloudera.com:27000
#instances=1
I1017 01:11:24.349339 25196 query-state.cc:897]
1b4e1ee5d51fc461:1221932500000002] Executing instance.
instance_id=1b4e1ee5d51fc461:1221932500000002 fragment_idx=1
per_fragment_instance_idx=1 coord_state_idx=2 #in-flight=3
...
I1017 01:11:29.631078 25196 query-state.cc:906]
1b4e1ee5d51fc461:1221932500000002] Instance completed.
instance_id=1b4e1ee5d51fc461:1221932500000002 #in-flight=2 status=OK
I1017 01:11:29.631088 25178 query-state.cc:464]
1b4e1ee5d51fc461:1221932500000000] UpdateBackendExecState(): last report for
1b4e1ee5d51fc461:1221932500000000
{noformat}
So I think this is a repeat of the scenario in IMPALA-8565, I guess even though
I made the query bigger it isn't enough. I'll probably just increase it further.
> TestAdmissionControllerStress.test_mem_limit failing occasionally
> -----------------------------------------------------------------
>
> Key: IMPALA-9884
> URL: https://issues.apache.org/jira/browse/IMPALA-9884
> Project: IMPALA
> Issue Type: Bug
> Affects Versions: Impala 4.0
> Reporter: Vihang Karajgaonkar
> Assignee: Tim Armstrong
> Priority: Blocker
> Labels: broken-build, flaky
> Attachments: impalad-executors.tar.gz,
> impalad.impala-ec2-centos74-m5-4xlarge-ondemand-1925.vpc.cloudera.com.jenkins.log.INFO.20201017-011116.23933.gz
>
>
> Recently, I saw this test failing with the exception trace below.
> {noformat}
> custom_cluster/test_admission_controller.py:1782: in test_mem_limit
> {'request_pool': self.pool_name, 'mem_limit': query_mem_limit})
> custom_cluster/test_admission_controller.py:1638: in run_admission_test
> assert metric_deltas['dequeued'] == 0,\
> E AssertionError: Queued queries should not run until others are made to
> finish
> E assert 1 == 0
> {noformat}
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