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Posted to dev@lucene.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2019/03/19 17:53:00 UTC
[jira] [Commented] (SOLR-13253) SolrResourceLoader of an
IndexSchema should only be used for building the schema stuff
[ https://issues.apache.org/jira/browse/SOLR-13253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16796343#comment-16796343 ]
ASF subversion and git services commented on SOLR-13253:
--------------------------------------------------------
Commit 85a702cdff23a6352945dd78eb54ff6db68f6965 in lucene-solr's branch refs/heads/master from David Wayne Smiley
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=85a702c ]
SOLR-13253: avoid using IndexSchema.getResourceLoader for non-schema things.
Furthermore it's reference to SolrConfig was removed.
> SolrResourceLoader of an IndexSchema should only be used for building the schema stuff
> --------------------------------------------------------------------------------------
>
> Key: SOLR-13253
> URL: https://issues.apache.org/jira/browse/SOLR-13253
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Schema and Analysis
> Reporter: David Smiley
> Priority: Minor
> Attachments: SOLR-13253.patch
>
>
> The IndexSchema has a SolrResourceLoader that's taken from a SolrConfig in its constructor. If this IndexSchema gets re-used across Solr cores (via "shareSchema" being true in solr.xml), and if this resourceLoader is used in the future from a core that differs from the core the schema was created from, bad things can happen (like a memory leak in SolrResourceLoader.waitingForResources). The resourceLoader here is only actually needed to help create the schema stuff, like analyzers. Once it's done, it isn't needed anymore. However our Solr code base is using this in other places that are not appropriate. It's a subtle problem as there's a confluence of circumstances that need to occur to trigger it.
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