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https://issues.apache.org/jira/browse/SOLR-13350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17814949#comment-17814949
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Ishan Chattopadhyaya commented on SOLR-13350:
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With 100 million documents, and 20k queries (6 at a time) [0]:
With this change (it has a executor thread pool size of 6, so total 36 threads
are processing at most):
{code}
50th=16.619524,
90th=30.947031600000027,
95th=38.948291850000025,
mean=20.014714108908905,
total-queries=19980,
total-time=67360
{code}
Before this change:
{code}
50th=92.90819300000001,
90th=378.8129378,
95th=575.1936470000003,
mean=200.04457501921922,
total-queries=19980,
total-time=671495
{code}
[0] -
https://github.com/fullstorydev/solr-bench/blob/master/suites/stress-facets-local.json
> 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 10m
> 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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