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https://issues.apache.org/jira/browse/IGNITE-13575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17236081#comment-17236081
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Vyacheslav Koptilin commented on IGNITE-13575:
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Hello [~ivandasch],
Could you please take a look at this comment
https://github.com/apache/ignite/commit/88b5f4798a4a2ff3f5c1e7c981b7927a8a06854b#r44376175
?
> Invalid blocking section in GridNioWorker and GridNioClientWorker leads to
> false positive blocking thread detection
> -------------------------------------------------------------------------------------------------------------------
>
> Key: IGNITE-13575
> URL: https://issues.apache.org/jira/browse/IGNITE-13575
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 2.9, 2.8.1
> Reporter: Ivan Daschinskiy
> Assignee: Ivan Daschinskiy
> Priority: Major
> Labels: 2.9.1-rc
> Fix For: 2.10, 2.9.1
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> If {{IGNITE_SYSTEM_WORKER_BLOCKED_TIMEOUT}} less than 2000 ms, then simple
> {{epoll_wait}} for 2000 on idle cluster is considered as critical failure.
> We should surround {{selector.select}} with {{blockingSectionBegin}} and
> {{blockingSectionEnd}} instead of {{updateHeartbeat}}
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