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From "Semen Boikov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-6667) Allow discovery cache instance reuse if only minor topology change has occured.
Date Wed, 25 Oct 2017 14:03:01 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-6667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16218683#comment-16218683
] 

Semen Boikov commented on IGNITE-6667:
--------------------------------------

Thanks Alexei, looks good, I want to do some minor changes and then will rerun tests.



> Allow discovery cache instance reuse if only minor topology change has occured.
> -------------------------------------------------------------------------------
>
>                 Key: IGNITE-6667
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6667
>             Project: Ignite
>          Issue Type: Improvement
>      Security Level: Public(Viewable by anyone) 
>    Affects Versions: 2.2
>            Reporter: Alexei Scherbakov
>            Assignee: Alexei Scherbakov
>             Fix For: 2.4
>
>
> Currently we always recreating DiscoCache instance even if only minor topology change
has occured and cache may be reused.
> Profiling shows what initialization of such object tooks up tens of millis which adds
to ring latency delay and especially sensitive for large topologies.
> Solution: reuse current discovery cache instance whenever possible.



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