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https://issues.apache.org/jira/browse/FLINK-34704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17836142#comment-17836142
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Zakelly Lan commented on FLINK-34704:
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Thanks for your detailed explanation! Now I see your point. The problematic of
my approach is that current record of AWOP will be lost.
+1 for temporarily increase the size of the buffer by 1. IIUC even if the AWOP
has an upstream, if current record could normally finish its process due to
increment of buffer, the cp could proceed.
> Process checkpoint barrier in AsyncWaitOperator when the element queue is full
> ------------------------------------------------------------------------------
>
> Key: FLINK-34704
> URL: https://issues.apache.org/jira/browse/FLINK-34704
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Task
> Reporter: Zakelly Lan
> Priority: Minor
>
> As discussed in
> https://lists.apache.org/thread/4f7ywn29kdv4302j2rq3fkxc6pc8myr2 . Maybe it
> is better to provide such a new `yield` that can process mail with low
> priority in the mailbox executor. More discussion needed.
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