The documentation in the cassandra.yaml file covers this pretty well. In summary, a snapshot will create a hard link for each file in the data directory (if JNA is installed and on the classpath).
Turning on incremental backup will create a hard link to every new SSTable that is flushed out to disk. Together a snapshot and a set of incrementals can allow you to recover to a specific point in time. On Sun, Apr 29, 2012 at 11:39 PM, Tamar Fraenkel <ta...@tok-media.com>wrote: > Hi! > I wonder what are the advantages of doing incremental snapshot over non > incremental? > Are the snapshots smaller is size? Are there any other implications? > Thanks, > > *Tamar Fraenkel * > Senior Software Engineer, TOK Media > > [image: Inline image 1] > > ta...@tok-media.com > Tel: +972 2 6409736 > Mob: +972 54 8356490 > Fax: +972 2 5612956 > > > > -- Ben Coverston DataStax -- The Apache Cassandra Company
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