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Posted to issues@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2020/12/23 22:44:00 UTC
[jira] [Resolved] (IMPALA-1226) need better cancellation tests
[ https://issues.apache.org/jira/browse/IMPALA-1226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong resolved IMPALA-1226.
-----------------------------------
Resolution: Later
> need better cancellation tests
> ------------------------------
>
> Key: IMPALA-1226
> URL: https://issues.apache.org/jira/browse/IMPALA-1226
> Project: IMPALA
> Issue Type: Task
> Components: Infrastructure
> Affects Versions: Impala 2.0
> Reporter: Daniel Hecht
> Assignee: Daniel Hecht
> Priority: Major
> Labels: query-lifecycle, test, test-infra
> Attachments: impala-1178-test.patch
>
>
> See IMPALA-1178 comments for details for how to manually reproduce the bug.
> I tried writing a pytest test case to reproduce the problem but it appears that we don't get enough parallelism that way. Even adding a long delay loop to ImpalaServer::ExecuteStatement inside the race window shows that the attached test will not execute the RPCs concurrently, and so doesn't reproduce IMPALA-1178.
> I'll attach a patch of the test case attempt. The patch also contains some instrumentation I was using to see why I wasn't hitting the race window.
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