Tuning OpenVZ Containers to work better with Java?

Posted by Daniel on Server Fault See other posts from Server Fault or by Daniel
Published on 2012-12-22T15:43:18Z Indexed on 2013/07/01 23:07 UTC
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Filed under:

memory

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java

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openvz

I have a 8 GB RAM Server (Dedicated) and currently have KVM Virtual Machines running on there (successfully) however i'm considering moving to OpenVZ as KVM seems a bit overkill with a lot of overhead for what i use it for.

In the past i have used OpenVZ Containers, hosted by myself and from other providers and Java doesn't seem to work well with them.. One example is that if i give a container 2 GB RAM ( No burst) (with or without vswap doesn't matter) a java instance can only be tuned to use at very most 1500 MB of that RAM (-Xmx, -Xms).

Ideally, i wish to be able to create "Mini" containers with about 256MB, 512MB, 768 RAM and run some java instances in them.

My question is: I'm trying to find an ideal way to tune a OpenVZ container configuration to work better with Java memory.

Please, don't suggest anything related to Java settings, i'm looking for OpenVZ specific answers.. Though i welcome any suggestion if you feel it may help me.

Much Appreciated, Daniel

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