[libvirt] [PATCH] Increase default file handle limits for daemons

[Laine Stump]

On 03/15/2017 12:55 PM, Daniel P. Berrange wrote:
> Linux still defaults to a 1024 open file handle limit. This causes
> scalability problems for libvirtd / virtlockd / virtlogd on large
> hosts which might want > 1024 guest to be running. In fact if each
> guest needs > 1 FD, we can't even get to 500 guests. This is not
> good enough when we see machines with 100's of physical cores and
> TBs of RAM.
> 
> In comparison to other memory requirements of libvirtd & related
> daemons, the resource usage associated with open file handles
> is essentially line noise. It is thus reasonable to increase the
> limits unconditionally for all installs.

ACK.