The new memtable_total_space_in_mb option is kicking in https://github.com/apache/cassandra/blob/cassandra-0.8.0/NEWS.txt#L34 http://thelastpickle.com/2011/05/04/How-are-Memtables-measured/
Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 21 Jun 2011, at 22:12, Rene Kochen wrote: > I try to understand the flushing behavior in Cassandra 0.8 > > When I create rows, after a few seconds, I see the following line in the log: > > INFO 11:18:46,470 flushing high-traffic column family > ColumnFamilyStore(table='Traxis', columnFamily='Customers') > INFO 11:18:46,471 Enqueuing flush of > Memtable-Customers@14306556(697958/50059836 serialized/live bytes, 30346 ops) > INFO 11:18:46,472 Writing Memtable-Customers@14306556(697958/50059836 > serialized/live bytes, 30346 ops) > INFO 11:18:47,415 Completed flushing > C:\Cassandra\Storage\data\Traxis\Customers-g-1-Data.db (4157370 bytes) > > The super-column-family is configured as follows: > > Memtable thresholds: 0.2953125/63/1440 (millions of ops/MB/minutes): > > I don’t think any of the three tresholds should trigger the flush? > > Thanks, > > Rene
