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https://issues.apache.org/jira/browse/CASSANDRA-16441?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17290932#comment-17290932
 ] 

Michael Semb Wever edited comment on CASSANDRA-16441 at 2/25/21, 2:08 PM:
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Kicked off ci-cassandra.a.o: 
[!https://ci-cassandra.apache.org/job/Cassandra-devbranch/406/badge/icon!|https://ci-cassandra.apache.org/blue/organizations/jenkins/Cassandra-devbranch/detail/Cassandra-devbranch/406/pipeline]

Looking at trunk history: 
- 
https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest.snapshot_test/
- 
https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest-novnode.snapshot_test/
- 
https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest-offheap.snapshot_test/

the only failure there is in 
[Cassandra-trunk/289|https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest-novnode.snapshot_test/TestSnapshot/test_snapshot_and_restore_drop_table_remove_dropped_column/]
 (archived 
[here|https://nightlies.apache.org/cassandra/ci-cassandra.apache.org/job/Cassandra-trunk/289/index.html#showFailuresLink]).
 The the inner job to that is 
[Cassandra-trunk-dtest-novnode/250/label=cassandra,split=8|https://ci-cassandra.apache.org/job/Cassandra-trunk-dtest-novnode/250/label=cassandra,split=8/testReport/junit/dtest-novnode.snapshot_test/TestSnapshot/test_snapshot_and_restore_drop_table_remove_dropped_column/]
 (archived 
[here|https://nightlies.apache.org/cassandra/ci-cassandra.apache.org/job/Cassandra-trunk-dtest-novnode/250/index.html#showFailuresLink]).
 The archived logs to that run are at 
[nightlies.apache.org/cassandra/Cassandra-trunk-dtest-novnode/label=cassandra,split=8/250/|https://nightlies.apache.org/cassandra/Cassandra-trunk-dtest-novnode/label=cassandra,split=8/250/].

I've extracted the ccm_logs.tar.xz, so 
[debug.log|https://nightlies.apache.org/cassandra/Cassandra-trunk-dtest-novnode/label=cassandra,split=8/250/tmp/dtest-rieirnpc/test/node1/logs/debug.log]
 from the dtest-rieirnpc is easily readable. There I cannot see the race 
condition happening…

Searching archives didn't bring up any (pertinent) failures either
{code}
# mount https://nightlies.apache.org/cassandra/
cd /Volumes/cassandra/ci-cassandra.apache.org/job
grep -l "snapshot_test.TestSnapshot" Cassandra-trunk/*/index.html
grep -l "snapshot_test.TestSnapshot" Cassandra-trunk-dtest*/*/index.html
{code}

Despite lack of finding the race condition, I'm +1 on the patch. 


was (Author: michaelsembwever):
Kicked off ci-cassandra.a.o: 
[!https://ci-cassandra.apache.org/job/Cassandra-devbranch/406/badge/icon!|https://ci-cassandra.apache.org/blue/organizations/jenkins/Cassandra-devbranch/detail/Cassandra-devbranch/406/pipeline]

Looking at trunk history: 
- 
https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest.snapshot_test/
- 
https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest-novnode.snapshot_test/
- 
https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest-offheap.snapshot_test/
the only failure there is in 
[Cassandra-trunk/289|https://ci-cassandra.apache.org/job/Cassandra-trunk/289/testReport/dtest-novnode.snapshot_test/TestSnapshot/test_snapshot_and_restore_drop_table_remove_dropped_column/]
 (archived 
[here|https://nightlies.apache.org/cassandra/ci-cassandra.apache.org/job/Cassandra-trunk/289/index.html#showFailuresLink]).
 The the inner job to that is 
[Cassandra-trunk-dtest-novnode/250/label=cassandra,split=8|https://ci-cassandra.apache.org/job/Cassandra-trunk-dtest-novnode/250/label=cassandra,split=8/testReport/junit/dtest-novnode.snapshot_test/TestSnapshot/test_snapshot_and_restore_drop_table_remove_dropped_column/]
 (archived 
[here|https://nightlies.apache.org/cassandra/ci-cassandra.apache.org/job/Cassandra-trunk-dtest-novnode/250/index.html#showFailuresLink]).
 The archived logs to that run are at 
[nightlies.apache.org/cassandra/Cassandra-trunk-dtest-novnode/label=cassandra,split=8/250/|https://nightlies.apache.org/cassandra/Cassandra-trunk-dtest-novnode/label=cassandra,split=8/250/].

I've extracted the ccm_logs.tar.xz, so 
[debug.log|https://nightlies.apache.org/cassandra/Cassandra-trunk-dtest-novnode/label=cassandra,split=8/250/tmp/dtest-rieirnpc/test/node1/logs/debug.log]
 from the dtest-rieirnpc is easily readable. There I cannot see the race 
condition happening…

Searching archives didn't bring up any (pertinent) failures either
{code}
# mount https://nightlies.apache.org/cassandra/
cd /Volumes/cassandra/ci-cassandra.apache.org/job
grep -l "snapshot_test.TestSnapshot" Cassandra-trunk/*/index.html
grep -l "snapshot_test.TestSnapshot" Cassandra-trunk-dtest*/*/index.html
{code}

Despite lack of finding the race condition, I'm +1 on the patch. 

> Snapshot_test.py DTests failing
> -------------------------------
>
>                 Key: CASSANDRA-16441
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16441
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Test/dtest/python
>            Reporter: Ekaterina Dimitrova
>            Assignee: Brandon Williams
>            Priority: Normal
>             Fix For: 4.0-beta5, 4.0-beta
>
>
> [https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/623/workflows/1c89bd58-bcd1-45dc-b923-3aba245a78a6/jobs/3451]
> These failures are also observed for other patches in Jenkins dev (weird but 
> they are not seen failing in the latest builds and they are failing with 
> completely unrelated different patches...)
> [https://jenkins-cm4.apache.org/job/Cassandra-devbranch/375/#showFailuresLink]
> [https://jenkins-cm4.apache.org/job/Cassandra-devbranch/368/]
> Jenkins dev history for one of the tests:
> https://jenkins-cm4.apache.org/job/Cassandra-devbranch/375/testReport/junit/dtest-novnode.snapshot_test/TestArchiveCommitlog/test_archive_commitlog_with_active_commitlog/history/
>  



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