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Posted to issues-all@impala.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2022/09/09 05:22:00 UTC

[jira] [Commented] (IMPALA-7864) TestLocalCatalogRetries::test_replan_limit is flaky

    [ https://issues.apache.org/jira/browse/IMPALA-7864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17602121#comment-17602121 ] 

ASF subversion and git services commented on IMPALA-7864:
---------------------------------------------------------

Commit 2aeb6013fa44e53031d82b7e7ca59d771037d60a in impala's branch refs/heads/branch-4.1.1 from stiga-huang
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=2aeb6013f ]

IMPALA-7864: (Addendum) Deflake test_replan_limit by postponing catalog fetches

TestLocalCatalogRetries.test_replan_limit runs REFRESH and SELECT
queries concurrently on a table, and expects one of the query hits
inconsistent metadata.

This patch increases the chance of inconsistent metadata by injecting
a latency (500ms) before each catalog fetch. So it's more likely that a
request is fetching stale metadata. Also bump up the timeout of
thread.join() so we can try out all the attempts.

Test
 - Run test_replan_limit 1000 times without any error.
 - Run all tests of TestLocalCatalogRetries 100 times without any error.

Change-Id: Ia5bdca7402039f1f24b7bf19595c2541fa32d0ad
Reviewed-on: http://gerrit.cloudera.org:8080/18537
Reviewed-by: Impala Public Jenkins <im...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>
Reviewed-on: http://gerrit.cloudera.org:8080/18951
Reviewed-by: Csaba Ringhofer <cs...@cloudera.com>
Tested-by: Quanlong Huang <hu...@gmail.com>


> TestLocalCatalogRetries::test_replan_limit is flaky
> ---------------------------------------------------
>
>                 Key: IMPALA-7864
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7864
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Catalog
>    Affects Versions: Impala 3.0, Impala 2.12.0
>         Environment: Ubuntu 16.04
>            Reporter: Jim Apple
>            Assignee: Quanlong Huang
>            Priority: Critical
>              Labels: broken-build, catalog-v2, flaky
>             Fix For: Impala 4.1.0
>
>
> In https://jenkins.impala.io/job/ubuntu-16.04-from-scratch/3605/, TestLocalCatalogRetries::test_replan_limit failed on an unrelated patch. On my development machine, the test passed. 



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