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From Omid Aladini <>
Subject Losing key cache on restart
Date Tue, 24 Apr 2012 13:11:55 GMT

I'm experiencing losing a part of key cache on restart on Cassandra 1.0.7.
For example:

- cfstats reports key cache size of 13,040,502 with capacity of 15,000,000.
- Cassandra log reports 12,955,585 of them have been saved on the last save
- On restart Cassandra reads saved cache.
- cfstats reports key cache size of only 2,833,586 with correct capacity of

There is no sign that the cache size is reduced due to memory pressure. The
key cache capacity is set manually via cassandra-cli.

Has anyone else encountered this problem or is it a known issue?


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