On Tue, Dec 1, 2009 at 7:31 PM, Freeman, Tim <[email protected]> wrote: > Looking at the Cassandra mbean's, the attributes of ROW-MUTATION-STAGE and > ROW-READ-STAGE and RESPONSE-STAGE are all less than 10. > MINOR-COMPACTION-POOL reports 1218 pending tasks.
That's probably the culprit right there. Something is wrong if you have 1200 pending compactions. This is something that upgrading to trunk will help with right away since we parallelize compactions there. Another thing you can do is increase the memtable limits so you are not flushing + compacting so often with your insert traffic. -Jonathan
