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https://issues.apache.org/jira/browse/SOLR-14325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17065922#comment-17065922
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David Smiley commented on SOLR-14325:
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I briefly chatted with Yonik about this and shared my concerns. One concern is
that the request is asking for indexInfo yet we'd not return it sometimes
(because I suggested passing {{false}} param to getRealtimeSearcher). Also,
it's debatable if realtime index info is better than non-realtime info (it's
the difference between what hasn't been committed yet and what has). Getting a
realtime searcher will add overhead in common cases when there is a regular
searcher already available.
I have an idea to conditionally not return the index info if the SolrCloud
replica state is RECOVERING. I will work on that. Does that sound promising?
There should probably be a new option since the caller may be depending on this.
[~ab] Do you know to what extent SolrCloud / metrics may depend on this extra
information? "indexInfo" defaults to true.
> Core status could be improved to not require an IndexSearcher
> -------------------------------------------------------------
>
> Key: SOLR-14325
> URL: https://issues.apache.org/jira/browse/SOLR-14325
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: David Smiley
> Priority: Major
> Attachments: SOLR-14325.patch, SOLR-14325.patch, SOLR-14325.patch
>
>
> When the core status is told to request "indexInfo", it currently grabs the
> SolrIndexSearcher but only to grab the Directory. SolrCore.getIndexSize also
> only requires the Directory. By insisting on a SolrIndexSearcher, we
> potentially block for awhile if the core is in recovery since there is no
> SolrIndexSearcher.
> [https://lists.apache.org/thread.html/r076218c964e9bd6ed0a53133be9170c3cf36cc874c1b4652120db417%40%3Cdev.lucene.apache.org%3E]
> It'd be nice to have a solution that conditionally used the Directory of the
> SolrIndexSearcher only if it's present so that we don't waste time creating
> one either.
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