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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (SOLR-3816) Need a more granular nrt system that is close to a realtime system.
Date Wed, 31 Oct 2012 01:16:13 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13487423#comment-13487423
] 

Otis Gospodnetic edited comment on SOLR-3816 at 10/31/12 1:14 AM:
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[~nnagarajayya] Have you done any benchmarks against Solr 4.0 that show any performance differences?
Note that "A 70,000 document insert with searches in realtime has been observed on a 4 core
linux system. This is a real use case of realtime-search at a user location." doesn't really
tell us much - e.g., who says regular Solr 4 can't achieve the same?
It would be best if you could provide something one could easily run and compare performance.
 That will convince people.  Otherwise people have to set things up themselves....

I looked at the patch quickly.  Looks clean.  Minor comments
vars_should_not_be_like_this norlikethis. e.g. not thread_id or threadid, but threadId to
match the rest
I spotted a few System.out.printlns
I spotted some empty catch Trowable block(s?)
Spotted e.print....()
                
      was (Author: otis):
    [~nnagarajayya] Have you done any benchmarks against Solr 4.0 that show any performance
differences?

                  
> 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-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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