[jira] [Updated] (IGNITE-10225) Striped pool starvation check reports false-positive warnings if a job starts right before the check

["Ilya Kasnacheev (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-10225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ilya Kasnacheev updated IGNITE-10225:
-------------------------------------
    Ignite Flags:   (was: Docs Required)

> Striped pool starvation check reports false-positive warnings if a job starts right before the check
> ----------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-10225
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10225
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Stanislav Lukyanov
>            Assignee: Vladimir Pligin
>            Priority: Major
>              Labels: newbie
>             Fix For: 2.8
>
>         Attachments: StripedExecutorTest.java
>
>
> StripedExecutor::checkStarvation checks if two conditions are met: a stripe is executing a job and the stripe's job counter hasn't changed since the last check.
> These conditions will be met if no jobs have been executed for a long time and a job (even a very short one) has just started.
> This check isn't supposed to be exact and allowed to produce false-positives. However, the check is supposed to detect jobs running for more than starvation check interval (IGNITE_STARVATION_CHECK_INTERVAL), but in this case it may detect even very short ones.
> To fix this we may require a stripe to have no progress in two consecutive checks - then we will have much less chance for a false-positive, but still detect hanging or very long jobs.



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