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From "Denis Magda (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-2801) Coordinator floods network with partitions full map exchange messages
Date Mon, 21 Mar 2016 14:53:25 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-2801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15204385#comment-15204385
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Denis Magda commented on IGNITE-2801:
-------------------------------------

Quite weird place. [~sboikov], [~agoncharuk] please comment on why do we need this stuff at
line 1270

> Coordinator floods network with partitions full map exchange messages
> ---------------------------------------------------------------------
>
>                 Key: IGNITE-2801
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2801
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.5.0.final
>            Reporter: Denis Magda
>            Assignee: Anton Vinogradov
>            Priority: Critical
>              Labels: community, important
>             Fix For: 1.6
>
>         Attachments: basic_node.nps, basic_node.png, coordinator.nps, coordinator.png
>
>
> It is detected that the more machines in the cluster we have and the more caches are
started then the more outgoing traffic is produced by a coordinator node.
> As an example in the current deployment
> - 30 nodes;
> - 67 caches;
> - caches are empty and the cluster is not used at all (idle).
> the coordinator constantly uses 300 Mbit/s of outgoing traffic. In contrast each other
node shows constant 10 Mbit/s usage of incoming traffic.
> Most likely the reason is that the coordinator indefinitely sends partitions full map
for all the caches to all the nodes. This shouldn't happen.
> Need to debug the reason of the issue and fix it.
> Attached snapshots taken from the coordinator and on of cluster's nodes. Probably they
would help.



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