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From "Semen Boikov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-708) Need to remove background partition exchange
Date Mon, 21 Dec 2015 15:13:46 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-708?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Semen Boikov updated IGNITE-708:
    Fix Version/s:     (was: 1.5)

> Need to remove background partition exchange
> --------------------------------------------
>                 Key: IGNITE-708
>                 URL: https://issues.apache.org/jira/browse/IGNITE-708
>             Project: Ignite
>          Issue Type: Task
>    Affects Versions: ignite-1.4
>            Reporter: Yakov Zhdanov
>            Assignee: Gianfranco Murador
>            Priority: Blocker
>              Labels: datagrid
>             Fix For: 1.6
> Now every node sends its partition map to cache coordinator (which is the oldest node
in topology) and coordinator spreads full partition map to every node in topology. This happens
for each cache separately. This seems to take place even if there were no changes to local
partition maps. Given we guarantee communication message delivery this background process
seems to be an overkill.
> Exchange should happen only if any changes took place.
> After dynamic cache start has been introduced, we can have significant amount of live
caches at some point of app lifecycle and app may suffer from  background exchange which is
obviously not a requirement (and may be never has been the one).

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