Vincent Mallet created CASSANDRA-6756:
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Summary: Provide option to avoid loading orphan SSTables on startup
Key: CASSANDRA-6756
URL: https://issues.apache.org/jira/browse/CASSANDRA-6756
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Vincent Mallet
Fix For: 1.2.16
When Cassandra starts up, it enumerates all SSTables on disk for a known column
family and proceeds to loading all of them, even those that were left behind
before the restart because of a problem of some sort. This can lead to "data
gain" (resurrected data) which is just as bad as data loss.
The ask is to provide a yaml config option which would allow one to turn that
behavior off by default so a cassandra cluster would be immune to data gain
when nodes get restarted (at least with Leveled where Cassandra keeps track of
SSTables).
This is sort of a follow-up to CASSANDRA-6503 (fixed in 1.2.14). We're just
extremely nervous that orphan SSTables could appear because of some other
potential problem somewhere else and cause zombie data on a random reboot.
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