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https://issues.apache.org/jira/browse/SOLR-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12589699#action_12589699
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Yonik Seeley commented on SOLR-509:
-----------------------------------
firstSearcher should be called whenever a new searcher is being opened and
there is no current searcher to base warming on. Right now, that will only
happen at startup, but in the future?
> Event Listeners called before request handlers are informed of SolrCore
> -----------------------------------------------------------------------
>
> Key: SOLR-509
> URL: https://issues.apache.org/jira/browse/SOLR-509
> Project: Solr
> Issue Type: Bug
> Components: search
> Reporter: Hoss Man
> Assignee: Grant Ingersoll
> Fix For: 1.3
>
> Attachments: SOLR-509.patch
>
>
> http://www.nabble.com/Nullpointer-when-using-QuerySenderListener-to16201207.html
> Thijs noticed NullPointerException from SearchHandler on startup when trying
> to configure some firstSearcher events using QuerySenderListener.
> The problem is the events are getting triggered as soon as the firstSearcher
> is opened, but the SOlrCore isn't finished being initialized, so
> inform(SolrCore) hasn't been called on all the Handlers (and some handlers
> aren't fully initialized and ready to process requests yet.
> We need to more the firstSearcher event handling after inform has been called
> on all SolrCoreAware objects.
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