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https://issues.apache.org/jira/browse/FLINK-8687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16395406#comment-16395406
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ASF GitHub Bot commented on FLINK-8687:
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Github user twalthr commented on the issue:
https://github.com/apache/flink/pull/5647
Thank you @zhangminglei. Merging...
> MaterializedCollectStreamResult#retrievePage should take resultLock
> -------------------------------------------------------------------
>
> Key: FLINK-8687
> URL: https://issues.apache.org/jira/browse/FLINK-8687
> Project: Flink
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: mingleizhang
> Priority: Major
>
> Currently MaterializedCollectStreamResult#retrievePage checks page range and
> calls snapshot.subList() without holding resultLock.
> {{resultLock}} should be taken.
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