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From Norman Maurer <norman.mau...@googlemail.com>
Subject Re: release mmap memory through jconsole?
Date Fri, 30 Sep 2011 16:55:19 GMT
I would also not use such a big heap. I think most people will tell
you that 12G -16G is max to use.

Bye,
Norman

2011/9/30 Yi Yang <i@iyyang.com>:
> It is meaningless to release such memory. The counting includes the data you reached
in the SSTable. Those data locates on your hard drive. So it is not the RAM spaces you have
actually used.
>
> -Y.
> ------Original Message------
> From: Yang
> To: user@cassandra.apache.org
> ReplyTo: user@cassandra.apache.org
> Subject: release mmap memory through jconsole?
> Sent: Oct 1, 2011 12:40 AM
>
> I gave an -Xmx50G to my Cassandra java processs, now "top" shows its
> virtual memory address space is 82G, is there
> a way to release that memory through JMX ?
>
> Thanks
> Yang
>
> 從我的 BlackBerry(R) 無線裝置

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