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https://issues.apache.org/jira/browse/IGNITE-9561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16630370#comment-16630370
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ASF GitHub Bot commented on IGNITE-9561:
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GitHub user Jokser opened a pull request:
https://github.com/apache/ignite/pull/4854
IGNITE-9561 Parallelize affinity calculation and partitions assignment
during PME
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gridgain/apache-ignite ignite-9561
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/ignite/pull/4854.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4854
----
commit 2e8a92734a45b3c6861c98e04d4a2aa4dee09551
Author: Pavel Kovalenko <jokserfn@...>
Date: 2018-09-27T12:59:31Z
IGNITE-9561 Parallelize affinity initialization and recalculation,
partitions validation and assignment.
----
> Optimize affinity initialization for started cache groups
> ---------------------------------------------------------
>
> Key: IGNITE-9561
> URL: https://issues.apache.org/jira/browse/IGNITE-9561
> Project: Ignite
> Issue Type: Improvement
> Components: cache
> Affects Versions: 2.5
> Reporter: Pavel Kovalenko
> Assignee: Pavel Kovalenko
> Priority: Major
> Fix For: 2.8
>
>
> At the end of
> {noformat}
> org.apache.ignite.internal.processors.cache.CacheAffinitySharedManager#processCacheStartRequests
>
> {noformat}
> method we're initializing affinity for cache groups starting at current
> exchange.
> We do it one-by-one and synchronously wait for AffinityFetchResponse for each
> of the starting groups. This is inefficient. We may parallelize this process
> and speed up caches starting process.
> NOTE: There are also a lot of affinity recalculation methods in:
> {noformat}
> CacheAffinitySharedManager
> {noformat}
> which all looks like iterate over cache groups and recalculate affinity for
> all of them. We can easily speed-up each of such methods executing in
> parallel affinity re-calculation for each of cache groups.
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