commit durring backup of more then 10 seconds causes snapshoot to fail ?
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Key: SOLR-2174
URL: https://issues.apache.org/jira/browse/SOLR-2174
Project: Solr
Issue Type: Bug
Components: replication (java)
Affects Versions: 1.4.1
Reporter: Hoss Man
Comment from Peter Sturge in email...
http://lucene.472066.n3.nabble.com/commitReserveDuration-backups-and-saveCommitPoint-td1407399.html
{quote}
In Solr 1.4 and 1.4.1, the SOLR-1475 patch is certainly there, but I don't
believe it truly addresses the problem.
Here's why:
When a 'backup' command is received by the RemplicationHandler, it creates a
SnapShooter instance and asynchronously does a full file snapshot of the
current commit point.
The current commit version to which this refers, however, is set to be cleared
on the next commit by the value of 'commitReserveDuration', which, by default,
is set to 10secs. (see cleanReserves() in IndexDeletionPolicyWrapper.java).
If you perform a backup and no commits occur during this time, it's fine,
because clearReserves() is not called. If you do get a commit during the backup
process, and the backup takes longer than 10secs,
the whole snapshot operation fails (because delete() doesn't see the commit
point in savedCommits - see below).
{quote}
Peter's email mentions two patches that he believes will fix this problem
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