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https://issues.apache.org/jira/browse/SOLR-4370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13564733#comment-13564733
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Senthuran Sivananthan commented on SOLR-4370:
---------------------------------------------
Tested the patch on 4.2 from
http://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x/ and found a
couple issues when solr.commitwithin.softcommit = false. The setting allows
the slaves to replicate the indices and I can see the index files updated after
commitWithin timeframe.
The issues are:
1/ Stats on the collection overview page doesn't get updated. This includes
the generation & version info. An explicit commit (i.e.
http://localhost:8983/solr/collection1/update?commit=true) will update the
stats.
2/ Can't find the indexed docs on the master. An explicit commit solves the
issue.
I think the patch solves the original request but introduced a couple of
side-effects.
> Ability to control the commit behaviour of commitWithin
> -------------------------------------------------------
>
> Key: SOLR-4370
> URL: https://issues.apache.org/jira/browse/SOLR-4370
> Project: Solr
> Issue Type: New Feature
> Components: replication (java)
> Affects Versions: 4.0, 4.1
> Reporter: Senthuran Sivananthan
> Assignee: Mark Miller
> Fix For: 4.2, 5.0
>
> Attachments: SOLR-4370.patch
>
>
> We need the ability to control the hard/soft commit behaviour of commitWithin
> parameter.
> Since Solr 4.0, the commitWithin's performs a soft-commit which prevents
> slaves from picking up the changes in a master/slave configuration.
> The behaviour I'm thinking is as follows:
> 1. By default, commitWithin will trigger soft commits.
> 2. But this behaviour can be overwritten in solrconfig.xml to allow
> commitWithin to perform hard commits, which will allow slaves to pick up the
> changes.
> <commitWithin>
> <forceHardCommit>true</forceHardCommit> <!-- default is false
> -->
> </commitWithin>
> Related to SOLR-4100
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