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Date: Thu, 1 Nov 2012 14:31:13 +0000 (UTC)
From: "Nagendra Nagarajayya (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
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Subject: [jira] [Commented] (SOLR-3816) Need a more granular nrt system that
 is close to a realtime system.
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    [ https://issues.apache.org/jira/browse/SOLR-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13488720#comment-13488720 ] 

Nagendra Nagarajayya commented on SOLR-3816:
--------------------------------------------

Attached a patch for the 4.x trunk. All tests pass with realtime turned off and turned on. Will attach the test logs also.
                
> 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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