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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 edited comment on SOLR-4370 at 1/28/13 10:38 PM:
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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.
----
Additional info
---------------
I did a quick diff between explicit commit (commit=true) vs. commitWithin=2000
vs. HardAutoCommitTest and here's what I found. May be I'm off track, but
thought I share:
1. commit = true
* A new searcher is registered
Jan 28, 2013 5:30:39 PM org.apache.solr.search.SolrIndexSearcher <init>
INFO: Opening Searcher@47955387 main
Jan 28, 2013 5:30:39 PM org.apache.solr.core.CachingDirectoryFactory close
INFO: Releasing
directory:D:\Tools\Solr\dev\branch_4x\solr\example\solr\collection1\data\index
Jan 28, 2013 5:30:39 PM org.apache.solr.core.QuerySenderListener newSearcher
INFO: QuerySenderListener sending requests to Searcher@47955387
main{StandardDirectoryReader(segments_4:9:nrt _0(4.2):C2 _2(4.2):C3)}
Jan 28, 2013 5:30:39 PM org.apache.solr.update.DirectUpdateHandler2 commit
INFO: end_commit_flush
Jan 28, 2013 5:30:39 PM org.apache.solr.core.QuerySenderListener newSearcher
INFO: QuerySenderListener done.
Jan 28, 2013 5:30:39 PM org.apache.solr.core.SolrCore registerSearcher
INFO: [collection1] Registered new searcher Searcher@47955387
main{StandardDirectoryReader(segments_4:9:nrt _0(4.2):C2 _2(4.2):C3)}
2. commitWithin=N
New search isn't registered
Jan 28, 2013 5:31:47 PM org.apache.solr.search.SolrIndexSearcher <init>
INFO: Opening Searcher@4d000e49 realtime
Jan 28, 2013 5:31:47 PM org.apache.solr.update.DirectUpdateHandler2 commit
INFO: end_commit_flush
3. HardAutoCommitTest
23619 T18 oasc.CachingDirectoryFactory.close Releasing
directory:C:\Users\SENTHU~1\AppData\Local\Temp\solrtest-HardAutoCommitTest-1359411964946
23640 T18 oass.SolrIndexSearcher.<init> Opening Searcher@3b0d579 main
23642 T18 oasu.DirectUpdateHandler2.commit end_commit_flush
23654 T17 oasc.SolrCore.registerSearcher [collection1] Registered new searcher
Searcher@3b0d579 main{StandardDirectoryReader(segments_2:4:nrt _0(4.2):C1)}
23655 T17 oasc.CachingDirectoryFactory.close Releasing
directory:C:\Users\SENTHU~1\AppData\Local\Temp\solrtest-HardAutoCommitTest-1359411964946\index
29234 T15 C1 REQ [collection1] webapp=null path=null
params={start=0&q=id:529&qt=standard&rows=20&version=2.2} hits=1 status=0
QTime=4
Any way to register a new searcher?
was (Author: senthuran):
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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