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From "Ariel Weisberg (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-9265) Add checksum to saved cache files
Date Wed, 29 Apr 2015 17:39:08 GMT
Ariel Weisberg created CASSANDRA-9265:

             Summary: Add checksum to saved cache files
                 Key: CASSANDRA-9265
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Ariel Weisberg
             Fix For: 3.x

Saved caches are not covered by a checksum. We should at least emit a checksum. My suggestion
is a large checksum of the whole file (convenient offline validation), and then smaller per
record checksums after each record is written (possibly a subset of the incrementally maintained
larger checksum).

I wouldn't go for anything fancy to try to recover from corruption since it is just a saved
cache. If corruption is detected while reading I would just have it bail out. I would rather
have less code to review and test in this instance.

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