I know:-) but this is not answer:-(. I found that on other nodes there still about 3GB (on node with JAVA_HEAP=6GB free memory also 3GB) of free memory but there JAVA_HEAP=5G, so this looks like some sysctl (/proc/sys/vm???) ratio (about 10%(3 / 24 * 100)), i don't known which, anybody can explain this situation????
2012/4/14 R. Verlangen <ro...@us2.nl> > Its recommended to disable swap entirely when you run Cassandra on a > server. > > > 2012/4/14 ruslan usifov <ruslan.usi...@gmail.com> > >> I forgot to say that system have 24GB of phis memory >> >> >> 2012/4/14 ruslan usifov <ruslan.usi...@gmail.com> >> >>> Hello >>> >>> We have 6 node cluster (cassandra 0.8.10). On one node i increase java >>> heap size to 6GB, and now at this node begin grows swap, but system have >>> about 3GB of free memory: >>> >>> >>> root@6wd003:~# free >>> total used free shared buffers cached >>> Mem: 24733664 21702812 3030852 0 6792 13794724 >>> -/+ buffers/cache: 7901296 16832368 >>> Swap: 1998840 2352 1996488 >>> >>> >>> And swap space slowly grows, but i misunderstand why? >>> >>> >>> PS: We have JNA mlock, and set vm.swappiness = 0 >>> PS: OS ubuntu 10.0.4(2.6.32-40-generic) >>> >>> >>> >> > > > -- > With kind regards, > > Robin Verlangen > www.robinverlangen.nl > >
