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From Edison Su <Edison...@citrix.com>
Subject RE: Memory overcommit
Date Sat, 30 Jun 2012 01:22:30 GMT


> -----Original Message-----
> From: Bryan Whitehead [mailto:driver@megahappy.net]
> Sent: Friday, June 29, 2012 11:46 AM
> To: cloudstack-users@incubator.apache.org
> Subject: Memory overcommit
> 
> http://bugs.cloudstack.org/browse/CS-12898 <- states not going to
> happen until Campo release
> 
> http://confluence.cloudstack.org/display/PM/Campo <- it is a P2 item
> 
> http://cloudstack.org/roadmap.html <- Q4 2012
> 
> is there a way to currently do overcommitting? Even if it is just a
> hack?
> 
> For example, could I have the agent running on KVM report 2X or 3X the
> actual memory available?

You can hack database: update op_host_capability set total_capacity = the-memory-you-want
where capacity_type = 0;
It's only for KVM AFAIK.

> 
> Has anyone done this?
> 
> I've also read the XenServer currently supports overcommit - how does
> that work?
> 
> -Bryan

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