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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2017/01/26 12:27:24 UTC

[jira] [Resolved] (IGNITE-4476) GridIoManger must always process messages asynchronously

     [ https://issues.apache.org/jira/browse/IGNITE-4476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vladimir Ozerov resolved IGNITE-4476.
-------------------------------------
    Resolution: Won't Fix

Too risky from performance perspective.

> GridIoManger must always process messages asynchronously
> --------------------------------------------------------
>
>                 Key: IGNITE-4476
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4476
>             Project: Ignite
>          Issue Type: Task
>          Components: general
>    Affects Versions: 1.8
>            Reporter: Vladimir Ozerov
>             Fix For: 2.0
>
>
> *Problem*
> If message is to be sent to remote node, we just send it (surprise :-)). But if message is to be sent to local node, we have a strange "optimization" - we process it synchronously in the same thread. 
> This is wrong as it easily leads to all kind of weird starvations and deadlocks.
> *Solution*
> Never ever process messages synchronously. For local node we should put message runnable into appropriate thread pool and exit.



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