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https://issues.apache.org/jira/browse/SOLR-6359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14249827#comment-14249827
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Forest Soup commented on SOLR-6359:
-----------------------------------
I applied the patch for SOLR-6359 on 4.7 and did some test. It does not work as
expected.
When I set below config, it still go into SnapPuller code even if I only newly
added 800 doc.
<updateLog>
<str name="dir">$
{solr.ulog.dir:}
</str>
<int name="numRecordsToKeep">10000</int>
<int name="maxNumLogsToKeep">100</int>
</updateLog>
After my reading code, it seems that lines in
org.apache.solr.update.PeerSync.handleVersions(ShardResponse srsp) cause the
issue:
if (ourHighThreshold < otherLow)
{ // Small overlap between version windows and ours is older // This means that
we might miss updates if we attempted to use this method. // Since there exists
just one replica that is so much newer, we must // fail the sync.
log.info(msg() + " Our versions are too old.
ourHighThreshold="+ourHighThreshold + " otherLowThreshold="+otherLow); return
false; }
Could you please comment? Thanks!
> Allow customization of the number of records and logs kept by UpdateLog
> -----------------------------------------------------------------------
>
> Key: SOLR-6359
> URL: https://issues.apache.org/jira/browse/SOLR-6359
> Project: Solr
> Issue Type: Improvement
> Reporter: Ramkumar Aiyengar
> Assignee: Mark Miller
> Priority: Minor
> Fix For: 5.0, Trunk
>
>
> Currently {{UpdateLog}} hardcodes the number of logs and records it keeps,
> and the hardcoded numbers (100 records, 10 logs) can be quite low (esp. the
> records) in an heavily indexing setup, leading to full recovery even if Solr
> was just stopped and restarted.
> These values should be customizable (even if only present as expert options).
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