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https://issues.apache.org/jira/browse/SOLR-3015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karl Wright updated SOLR-3015:
------------------------------
Attachment: SOLR-3015.patch
Patch which allows QParserPlugins to be SolrCoreAware.
> CloseHook cannot be used with QParserPlugins
> --------------------------------------------
>
> Key: SOLR-3015
> URL: https://issues.apache.org/jira/browse/SOLR-3015
> Project: Solr
> Issue Type: Bug
> Reporter: Karl Wright
> Labels: closehook, qparserplugin, solrcoreaware
> Attachments: SOLR-3015.patch
>
>
> For some kinds of plugins, the CloseHook API works well to allow the plugin
> to clean up any resources it was using prior to Solr shutdown. But for
> QParserPlugins, CloseHook does not work; you get an error if you try to use
> it. This occurs because the QParserPlugin cannot be made SolrCoreAware:
> {code}
> [junit] org.apache.solr.common.SolrException: Invalid 'Aware' object:
> org.apache.solr.mcf.ManifoldCFQParserPlugin@18941f7 --
> org.apache.solr.util.plugin.SolrCoreAware must be an instance of:
> [org.apache.solr.request.SolrRequestHandler]
> [org.apache.solr.response.QueryResponseWriter]
> [org.apache.solr.handler.component.SearchComponent]
> [org.apache.solr.update.processor.UpdateRequestProcessorFactory]
> [org.apache.solr.handler.component.ShardHandlerFactory]
> {code}
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