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https://issues.apache.org/jira/browse/SOLR-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492551#comment-13492551
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Otis Gospodnetic commented on SOLR-3816:
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[~nnagarajayya] Hmmm.... maybe I'm missing something.... but if you set the
soft commit in Solr to something very, very low, then yes, while it is still
technically point in time view, that point in time is shifted so frequently
that it looks like RT search to a human - new results can show up with every
new search. So the effect can be as (N)RT as you choose with the soft commit
frequency. I think the only Q is whether that approach vs. the approach in
your patch yields better performance, and it looks like [~hsn] will test that
soon and we're all anxiously waiting to see the results! :)
> Need a more granular nrt system that is close to a realtime system.
> -------------------------------------------------------------------
>
> Key: SOLR-3816
> URL: https://issues.apache.org/jira/browse/SOLR-3816
> Project: Solr
> Issue Type: Improvement
> Components: clients - java, replication (java), search,
> SearchComponents - other, SolrCloud, update
> Affects Versions: 4.0
> Reporter: Nagendra Nagarajayya
> Labels: nrt, realtime, replication, search, solrcloud, update
> Attachments: alltests_passed_with_realtime_turnedoff.log,
> SOLR-3816_4.0_branch.patch, SOLR-3816-4.x.trunk.patch,
> solr-3816-realtime_nrt.patch
>
>
> Need a more granular NRT system that is close to a realtime system. A
> realtime system should be able to reflect changes to the index as and when
> docs are added/updated to the index. soft-commit offers NRT and is more
> realtime friendly than hard commit but is limited by the dependency on the
> SolrIndexSearcher being closed and reopened and offers a coarse granular NRT.
> Closing and reopening of the SolrIndexSearcher may impact performance also.
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