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Posted to issues@hbase.apache.org by "Michael Stack (Jira)" <ji...@apache.org> on 2020/01/25 01:58:00 UTC

[jira] [Updated] (HBASE-23737) [Flakey Tests] TestFavoredNodeTableImport fails 30% of the time

     [ https://issues.apache.org/jira/browse/HBASE-23737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Stack updated HBASE-23737:
----------------------------------
    Attachment: 0001-HBASE-23737-Flakey-Tests-TestFavoredNodeTableImport-.patch

> [Flakey Tests] TestFavoredNodeTableImport fails 30% of the time
> ---------------------------------------------------------------
>
>                 Key: HBASE-23737
>                 URL: https://issues.apache.org/jira/browse/HBASE-23737
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Michael Stack
>            Priority: Major
>         Attachments: 0001-HBASE-23737-Flakey-Tests-TestFavoredNodeTableImport-.patch
>
>
> Spent time on TestFavoredNodeTableImport. It fails w/ an NPE when we go to get favorednodes for one of the regions. It is sporadic. Fails for me locally too about 30% of the time.
> I tried to study where we are going wrong. The balancer is disabled when we start the cluster up again on FN balancer... but this don't seem to be the problem.
> Looks like laggard Regions taking their time to open means they don't show in the global list of favored nodes when the checking runs. Adding a wait till no RIT seems to stabilize the test.



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