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From "Jay Zhuang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-14146) [DTEST] cdc_test::TestCDC::test_insertion_and_commitlog_behavior_after_reaching_cdc_total_space assertion always fails (Extra items in the left set)
Date Sat, 06 Jan 2018 19:26:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-14146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16314857#comment-16314857
] 

Jay Zhuang commented on CASSANDRA-14146:
----------------------------------------

https://github.com/apache/cassandra-dtest/pull/6 fixes the issue.
cc [~JoshuaMcKenzie]

> [DTEST] cdc_test::TestCDC::test_insertion_and_commitlog_behavior_after_reaching_cdc_total_space
assertion always fails (Extra items in the left set)
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14146
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14146
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Testing
>            Reporter: Michael Kjellman
>
> Dtest cdc_test::TestCDC::test_insertion_and_commitlog_behavior_after_reaching_cdc_total_space
always fails on an assertion.
> the assert is the final step of the test and it checks that pre_non_cdc_write_cdc_raw_segments
== _get_cdc_raw_files(node.get_path())
> This fails 100% of the time locally, 100% of the time on circleci executed under pytest,
and 100% of the time for the past 40 test runs on ASF Jenkins runs against trunk.
> This is the only test failure (excluding flaky one-off failures) remaining on the pytest
dtest branch. I'm going to annotate the test with a skip marker (including a reason reference
to this JIRA)... when it's fixed we should also remove the skip annotation from the test.
> {code}
> >       assert pre_non_cdc_write_cdc_raw_segments == _get_cdc_raw_files(node.get_path())
> E       AssertionError: assert {'/tmp/dtest-...169.log', ...} == {'/tmp/dtest-v...169.log',
...}
> E         Extra items in the left set:
> E         '/tmp/dtest-vrn4k8ov/test/node1/cdc_raw/CommitLog-7-1515030005097.log'
> E         '/tmp/dtest-vrn4k8ov/test/node1/cdc_raw/CommitLog-7-1515030005098.log'
> E         Extra items in the right set:
> E         '/tmp/dtest-vrn4k8ov/test/node1/cdc_raw/CommitLog-7-1515030005099.log'
> E         '/tmp/dtest-vrn4k8ov/test/node1/cdc_raw/CommitLog-7-1515030005100.log'
> E         Use -v to get the full diff
> {code}



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