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https://issues.apache.org/jira/browse/SOLR-14423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17099091#comment-17099091
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Christine Poerschke commented on SOLR-14423:
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bq. ... StreamHandler (at "/stream") has several statically declared caches.
... SolrClientCache ...
I had noticed that GraphHandler references StreamHandler's client cache -- e.g.
https://github.com/apache/lucene-solr/blob/releases/lucene-solr/8.5.1/solr/core/src/java/org/apache/solr/handler/GraphHandler.java#L150
-- and it sounds like the above solution could take care of that too then.
> static caches in StreamHandler ought to move to CoreContainer lifecycle
> -----------------------------------------------------------------------
>
> Key: SOLR-14423
> URL: https://issues.apache.org/jira/browse/SOLR-14423
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: streaming expressions
> Reporter: David Smiley
> Priority: Major
>
> StreamHandler (at "/stream") has several statically declared caches. I think
> this is problematic, such as in testing wherein multiple nodes could be in
> the same JVM. One of them is more serious -- SolrClientCache which is
> closed/cleared via a SolrCore close hook. That's bad for performance but
> also dangerous since another core might want to use one of these clients!
> CC [~jbernste]
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