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Posted to issues@lucene.apache.org by "Andrzej Bialecki (Jira)" <ji...@apache.org> on 2020/02/25 12:49:00 UTC
[jira] [Assigned] (SOLR-14275) Policy calculations are very slow
for large clusters and large operations
[ https://issues.apache.org/jira/browse/SOLR-14275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrzej Bialecki reassigned SOLR-14275:
---------------------------------------
Assignee: Andrzej Bialecki
> Policy calculations are very slow for large clusters and large operations
> -------------------------------------------------------------------------
>
> Key: SOLR-14275
> URL: https://issues.apache.org/jira/browse/SOLR-14275
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
> Affects Versions: 7.7.2, 8.4.1
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Priority: Major
> Attachments: scenario.txt
>
>
> Replica placement calculations performed during collection creation take extremely long time (several minutes) when using a large cluster and creating a large collection (eg. 1000 nodes, 500 shards, 4 replicas).
> Profiling shows that most of the time is spent in {{Row.computeCacheIfAbsent}}, which probably doesn't reuse this cache as much as it should.
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