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https://issues.apache.org/jira/browse/FLINK-9526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16890961#comment-16890961
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Biao Liu commented on FLINK-9526:
---------------------------------
The root cause of this unstable case is an unexpected debug log involved. This
case sets the log level to {{DEBUG}} for checking the truncating log. However
it sets the global log level. There might be a debug log "Responding with
error: ..." in {{PartitionRequestServerHandler}} if a {{PartitionNotFound}}
occurred. This would fail the error checking due to there is a word "error" in
this log.
I propose to shrink the log level setting to {{BucketingSink}}. I believe it's
more reliable than skip checking the {{PartitionNotFound}}.
> BucketingSink end-to-end test failed on Travis
> ----------------------------------------------
>
> Key: FLINK-9526
> URL: https://issues.apache.org/jira/browse/FLINK-9526
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Common, Tests
> Affects Versions: 1.6.0
> Reporter: Chesnay Schepler
> Priority: Critical
> Labels: pull-request-available, test-stability
> Fix For: 1.9.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> https://travis-ci.org/zentol/flink-ci/builds/388130914
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