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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-3816) Need a more granular nrt system that is close to a realtime system.
Date Thu, 01 Nov 2012 18:23:12 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13488905#comment-13488905
] 

Otis Gospodnetic commented on SOLR-3816:
----------------------------------------

[~nnagarajayya] Right, that is what I thought.  This doesn't make it clear this change is
actually a performance improvement unfortunately - who knows if those people configured Solr
optimally in the first place. :)  Any way you can put together a side by side comparison?

                
> 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: 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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