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From Nikita Gubenko <>
Subject Re: CS4 tuning/optimization for high rate VM operations
Date Tue, 07 May 2013 20:07:33 GMT
seems like I've found issue by myself. The reason was in the number of java
threads that was more than default allowed ulimit nproc
adding "cloud - nproc 10240" to limits.conf fixed "stuck" cloud-manager.

On Tue, May 7, 2013 at 6:28 PM, Nikita Gubenko <>wrote:

> Hello
> Are there any recommendations on tuning CS configuration for high rate VM
> operations and big setups? I have CS 4.1.0 with 2 Xenserver hosts in the
> cluster. When I try to create 50 VMs for 50 accounts using cloudmonkey
> async requests my installation after some operations end up with stuck
> management-server - seems like it's working (logs are filling with new
> rows), but in the same time it's doing nothing - no VM creations, UI acting
> weird, API returns internal server error, routers stuck in "starting"
> state, etc. Also I can't restart it in "normal" way - only with killing the
> java process.
> When I add delay for a minute between VMs deployment CS is doing much
> better and all routers + VMs are created successfully.
> Any advice?
> --
> Best Regards, Nikita Gubenko

Best Regards, Nikita Gubenko

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