Re: Cassandra 1.0.6 data flush query

2012-06-24 Thread aaron morton
> memtable_total_space_in_mb: 200 This means cassandra tries to use less than 200MB of real memory to hold memtables. The problem is java takes a lot more memory to hold data than it takes to store on disk. You can see the ratio of serialized to live bytes logged from the Memtable with messages

Cassandra 1.0.6 data flush query

2012-06-21 Thread Roshan
Hi I am using Cassandra 1.0.6 version in our production system and noticed that Cassandra flushing the data to SSTable and the file size is < 10MB. With under moderate write load, the Cassandra flushing lots of memtables with small sizes. With this compaction doing lots of compactions. O/S - Cent