[jira] [Created] (SOLR-13253) SolrResourceLoader of an IndexSchema should only be used for building the schema stuff

["David Smiley (JIRA)" <ji...@apache.org>]

David Smiley created SOLR-13253:
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             Summary: 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


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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