BTW: Are you sure system doing wrong? System may save some pages to swap
not removing them from RAM simply to have possibility to remove them later
fast if needed.
2012/4/14 ruslan usifov <ruslan.usifov@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)
>
>
>
--
Best regards,
Vitalii Tymchyshyn
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