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From "Alexei Scherbakov (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (IGNITE-5385) Get rid of discovery custom message on exchange completion
Date Tue, 29 Aug 2017 14:44:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-5385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Alexei Scherbakov resolved IGNITE-5385.
    Resolution: Won't Fix

Fixed as a part of exchange optimizations for 2.1.4 by [~sboikov]

> Get rid of discovery custom message on exchange completion
> ----------------------------------------------------------
>                 Key: IGNITE-5385
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5385
>             Project: Ignite
>          Issue Type: Improvement
>          Components: cache
>    Affects Versions: 2.0
>            Reporter: Yakov Zhdanov
>            Assignee: Alexei Scherbakov
>            Priority: Blocker
>              Labels: performance
>             Fix For: 2.3
> Currently if late affinity assignment is on we send full partition map as a custom message
to make sure all nodes get it. With greater number of nodes and caches this can cause significant
> We suggest to move sending to communication. In this case scenario with coordinator failure
requires special handling, since in this case some nodes may receive full map, complete exchange
and proceed with cache operations, while others may not received full map yet. In this case
full map should be resend from new coordinator - it should be recalculated if none has received
one from former coordinator or should be requested from one of the lucky receivers to get
forwarded to other nodes.

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