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From "R. Verlangen" <ro...@us2.nl>
Subject Re: swap grows
Date Sat, 14 Apr 2012 12:45:28 GMT
Its recommended to disable swap entirely when you run Cassandra on a server.

2012/4/14 ruslan usifov <ruslan.usifov@gmail.com>

> I forgot to say that system have 24GB of phis memory
>
>
> 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)
>>
>>
>>
>


-- 
With kind regards,

Robin Verlangen
www.robinverlangen.nl

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