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https://issues.apache.org/jira/browse/FLINK-10047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16569669#comment-16569669
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zhijiang commented on FLINK-10047:
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let's trace it together. :)
> Checkpointing takes much longer with credit base flow control.
> --------------------------------------------------------------
>
> Key: FLINK-10047
> URL: https://issues.apache.org/jira/browse/FLINK-10047
> Project: Flink
> Issue Type: Bug
> Components: Network
> Affects Versions: 1.5.0, 1.5.1, 1.5.2
> Reporter: Piotr Nowojski
> Priority: Critical
>
> As reported by an user, in some scenario it looks like checkpointing takes
> significantly more time (~40 minutes compared to ~2 minutes in Flink 1.4).
> Probably throughput is also lower.
> We are waiting for more logs with detailed Flink's metrics to get more
> insight.
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