You mean using swap memory? I have total of 48G of RAM and Cassandra never used more than 2G, swap is disabled.
But as I have little clues, I can give this a try. Is there any fresh instruction on running Cassandra with JNA ? 30.07.2012, 16:01, "Mateusz Korniak" <mateusz-li...@ant.gliwice.pl>: > On Monday 30 of July 2012, Nikolay Kоvshov wrote: > >> - JNA is not installed on both machines > > So your GC times may be strongly [1] affected by swapping. > IIRC, also snapshotting is more expensive and may trigger more swapping. > I would start with turning JNA mlockall on [2]. > > [1]: > Not sure if up to numbers you presented ( many seconds)... > > [2]: > INFO [main] 2012-07-27 12:18:27,135 CLibrary.java (line 109) JNA mlockall > successful > > -- > Mateusz Korniak
