Mathias H. created SOLR-6214:
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Summary: Snapshots numberToKeep param only keeps n-1 backups
Key: SOLR-6214
URL: https://issues.apache.org/jira/browse/SOLR-6214
Project: Solr
Issue Type: Bug
Affects Versions: 4.9
Reporter: Mathias H.
Priority: Minor
The numberToKeep param for snapshots doesn't work anymore. If you set the param
to '2', only '1' backup is kept.
In the ReplicationHandler in line 377 snapShooter.validateCreateSnapshot();
creates an empty directory for the new snapshot. The deleteOldBackups() method
in Snapshooter which will be executed before the backup will be created, now
sees the two directories an deletes the old one. But this is wrong because the
empty directory for the new backup should not be considered.
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