> AFAIK the MemtablePostFlusher is the TP writing sstables, if it has a queue > then there is the potential for writes to block while it waits for Memtables > to be flushed. Take a look at your Memtable settings per CF, could it be that > all the Memtables are flushing at once? There is info in the logs about when > this happens.
I didn't follow this thread closely, but based on the above maybe have a look at: https://issues.apache.org/jira/browse/CASSANDRA-1955 https://issues.apache.org/jira/browse/CASSANDRA-1991 (And no, I haven't had the time to do anything more on those since what's there. Sorry.) -- / Peter Schuller
