[jira] [Commented] (IGNITE-5100) Exchange queue is not used properly

["Stanilovsky Evgeny (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-5100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16047873#comment-16047873 ] 

Stanilovsky Evgeny commented on IGNITE-5100:
--------------------------------------------

IGNITE_EXCHANGE_HISTORY_SIZE=1 test append

> Exchange queue is not used properly
> -----------------------------------
>
>                 Key: IGNITE-5100
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5100
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>    Affects Versions: 1.6
>            Reporter: Alexei Scherbakov
>            Assignee: Semen Boikov
>            Priority: Critical
>             Fix For: 2.1
>
>
> Currently exchange futures share same queue for pending(incomplete) and completed exchanges.
> The queue has fixed hardcoded size of 1000.
> This leads to a problem when > 1000 nodes try to enter grid.
> In such case oldest exchanges will be removed by ExchangeFutureSet size limit, leading to whole exchange hanging.
> Solution: 
> 1. Use separate queues for pending and completed exchanges.
> 2. Pending exchange queue must be unbounded.
> 3. Add system property to control exchange history.



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