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https://issues.apache.org/jira/browse/SOLR-3816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508785#comment-13508785
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Otis Gospodnetic commented on SOLR-3816:
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bq. I have implemented a TimedSerialMergeScheduler so that merges are postponed
to known time intervals. It works with both tiered and log policies. I can make
available that as a patch. It seems to work well on my system here.
Sounds like that would be a good separate patch.
I think [~yo...@apache.org] can address your other comments
> 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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