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From Віталій Тимчишин <tiv...@gmail.com>
Subject Re: swap grows
Date Sun, 15 Apr 2012 07:41:28 GMT
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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