[jira] [Resolved] (HBASE-29783) Fix flaky TestVerifyBucketCacheFile.testRetrieveFromFile test

["Duo Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-29783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-29783.
-------------------------------
    Fix Version/s: 2.7.0
                   3.0.0-beta-2
                   2.6.5
     Hadoop Flags: Reviewed
       Resolution: Fixed

Pushed to branch-2.6+.

Thanks [~wchevreuil] and [~umesh9414] for reviewing!

> Fix flaky TestVerifyBucketCacheFile.testRetrieveFromFile test
> -------------------------------------------------------------
>
>                 Key: HBASE-29783
>                 URL: https://issues.apache.org/jira/browse/HBASE-29783
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 3.0.0-beta-1, 2.7.0, 2.6.4
>            Reporter: Wellington Chevreuil
>            Assignee: Duo Zhang
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 2.7.0, 3.0.0-beta-2, 2.6.5
>
>
> TestVerifyBucketCacheFile is on the flaky list for master branch, with testRetrieveFromFile failing the check scenario where the index (backingMap) is recoverable, but not the cache file itself. I believe this is because on line #141 we are waiting until bucket cache is initialised (cacheState == ENABLED), however, in cases where the backingMap and the cache file are inconsistent, we perform a background validation of the backingMap, even after the cache is in ENABLED state. 



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