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https://issues.apache.org/jira/browse/SOLR-13350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17735586#comment-17735586
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Ishan Chattopadhyaya commented on SOLR-13350:
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bq. Did a performance testing on this suite:
https://github.com/fullstorydev/solr-bench/blob/master/suites/stress-facets-local.json
Querying performance is about 24x slower! :-o Seems like some obvious
bottleneck, that I'll be working on chasing down.
Seems like running a faceting query causes a massive slowdown (26 seconds, as
opposed to 300ms), but running a scores (need scores) query first, and then
firing a follow up faceting query (using the cached docset from the previous
step) seems to be quick and fast. I'm looking into why this could be happening.
> Explore collector managers for multi-threaded search
> ----------------------------------------------------
>
> Key: SOLR-13350
> URL: https://issues.apache.org/jira/browse/SOLR-13350
> Project: Solr
> Issue Type: New Feature
> Reporter: Ishan Chattopadhyaya
> Assignee: Ishan Chattopadhyaya
> Priority: Major
> Attachments: SOLR-13350.patch, SOLR-13350.patch, SOLR-13350.patch
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> AFAICT, SolrIndexSearcher can be used only to search all the segments of an
> index in series. However, using CollectorManagers, segments can be searched
> concurrently and result in reduced latency. Opening this issue to explore the
> effectiveness of using CollectorManagers in SolrIndexSearcher from latency
> and throughput perspective.
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