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https://issues.apache.org/jira/browse/IGNITE-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17050198#comment-17050198
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Anton Vinogradov commented on IGNITE-12741:
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[~ascherbakov],
Seems, it's not possible to implement explicit merges since they require some
sync (eg. coordinator should determine merge scope).
I'm not sure we have a problem here, since
- recovery starts on discovery event, not inside the switch (subsequent
recovery does not wait for previous pme-free switch finish, so we already have
some kind of merge here),
- pme-free is fast and performs only latch sync (waits for recovery)
Anyway, in case you see some of my assumptions are wrong or have any ideas I'll
be glad to perform the improvement.
> Allow exchange merges for PME free switch.
> ------------------------------------------
>
> Key: IGNITE-12741
> URL: https://issues.apache.org/jira/browse/IGNITE-12741
> Project: Ignite
> Issue Type: Improvement
> Affects Versions: 2.8
> Reporter: Alexey Scherbakov
> Priority: Major
> Fix For: 2.9
>
>
> Currently exchange merges are disabled if multiple baseline nodes left/failed.
> It's possible to have enabled merges together with enabled optimization.
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