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https://issues.apache.org/jira/browse/SOLR-4471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13583603#comment-13583603
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Mark Miller commented on SOLR-4471:
-----------------------------------
bq. Somebody agree?
It's kind of a workaround, but there is more to this. I've already advanced a
bit beyond this though - I'm not using a soft commit, I'm just not doing that
commit unless isFullCopyNeeded. I'm running into an issue with the version
though. Somehow, after the replication happens, the commit timestamp we store
is not getting set to the value of the index we replicated in - it's like it's
stale.
> slave index version is different form master (full index copy needed)
> ---------------------------------------------------------------------
>
> Key: SOLR-4471
> URL: https://issues.apache.org/jira/browse/SOLR-4471
> Project: Solr
> Issue Type: Bug
> Components: replication (java)
> Affects Versions: 4.1
> Reporter: Andre Charton
> Assignee: Mark Miller
> Labels: master, replication, slave, version
> Fix For: 4.2, 5.0
>
> Attachments: SOLR-4471.patch
>
>
> Scenario: master/slave replication, master delta index runs every 10 minutes,
> slave poll interval is 10 sec.
> There was an issue SOLR-4413 - slave reads index from wrong directory, so
> slave is full copy index from master every time, which is fixed after
> applying this patch from 4413 (see script below).
> Now on replication the slave downloads only updated files, but slave is
> create a new segement file and also a new version of index (generation is
> identical with master). On next polling the slave is download the full index
> again, because the new version slave is force a full copy.
> Problem is the new version of index on the slave after first replication.
> {noformat:apply patch SOLR-4413 script, please copy patch into patches
> directory before useage.}
> mkdir work
> cd work
> svn co http://svn.apache.org/repos/asf/lucene/dev/branches/lucene_solr_4_1/
> cd lucene_solr_4_1
> patch -p0 < ../../patches/SOLR-4413.patch
> cd solr
> ant dist
> {noformat}
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