[jira] [Reopened] (IMPALA-12194) DataCacheTest.SetReadOnly intermittently fails on debug builds

["Quanlong Huang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-12194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Quanlong Huang reopened IMPALA-12194:
-------------------------------------

Reopen since the same error happens again in [https://jenkins.impala.io/job/ubuntu-16.04-from-scratch/19638/]
{code:java}
/home/ubuntu/Impala/be/src/runtime/io/data-cache-test.cc:165
Expected: (cache_misses) > (0), actual: 0 vs 0 {code}
The job runs on [https://gerrit.cloudera.org/c/19926/4] which has the fix (05197c6a4).

> DataCacheTest.SetReadOnly intermittently fails on debug builds
> --------------------------------------------------------------
>
>                 Key: IMPALA-12194
>                 URL: https://issues.apache.org/jira/browse/IMPALA-12194
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 4.3.0
>            Reporter: Joe McDonnell
>            Assignee: Joe McDonnell
>            Priority: Blocker
>              Labels: broken-build, flaky
>             Fix For: Impala 4.3.0
>
>
> Some precommit jobs have been hitting intermittent test failures on DataCacheTest.SetReadOnly:
> {noformat}
> /home/ubuntu/Impala/be/src/runtime/io/data-cache-test.cc:165
> Expected: (cache_misses) > (0), actual: 0 vs 0{noformat}
> The test has a race condition that means it can't guarantee that the cache_misses is strictly greater than zero.



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