Always happy to share, but I won’t have time to work on porting this to
CloudStack any time soon.
Regards, Remi
On 03/05/2017, 13:44, "Rohit Yadav" <rohit.ya...@shapeblue.com> wrote:
Hi Remi, thanks for sharing. We would love to have those changes (for
4.9+), looking forward to your pull requests.
Regards.
________________________________
From: Remi Bergsma <rberg...@schubergphilis.com>
Sent: 03 May 2017 16:58:18
To: dev@cloudstack.apache.org
Subject: Re: Very slow Virtual Router provisioning with 4.9.2.0
Hi,
The patches I talked about:
1) Iptables speed improvement
https://github.com/apache/cloudstack/pull/1482
Was reverted due to a licensing issue.
2) Passwd speed improvement
https://github.com/MissionCriticalCloudOldRepos/cosmic-core/pull/138
By now, these are rather old patches so they need some work before they
apply to CloudStack again.
Regards, Remi
On 03/05/2017, 12:49, "Jeff Hair" <j...@greenqloud.com> wrote:
Hi Remi,
Do you have a link to the PR that was reverted? And also possibly the
code
that makes the password updating more efficient?
Jeff
On Wed, May 3, 2017 at 10:36 AM, Remi Bergsma
<rberg...@schubergphilis.com>
wrote:
> Hi Wido,
>
> When we had similar issues last year, we found that for example
comparing
> the iptables rules one-by-one is 1000x slower than simply loading
them all
> at once. Boris rewrote this part in our Cosmic fork, may be worth
looking
> into this again. The PR to CloudStack was merged, but reverted later,
can't
> remember why. We run it in production ever since. Also feeding
passwords to
> the passwd server is very inefficient (it operates like a snowball
and gets
> slower once you have more VMs). That we also fixed in Cosmic, not
sure if
> that patch made it upstream. Wrote it about a year ago already.
>
> We tested applying 10K iptables rules in just a couple of seconds.
1000
> VMs takes a few minutes to deploy.
>
> Generally speaking I'd suggest looking at the logs to find what takes
long
> or is executed a lot of times. Iptables and passwd are two to look at.
>
> If you want I can lookup the patches. Not handy on my phone now ;-)
>
> Regards, Remi
> ________________________________
> From: Wido den Hollander <w...@widodh.nl>
> Sent: Tuesday, May 2, 2017 7:57:08 PM
> To: dev@cloudstack.apache.org
> Subject: Very slow Virtual Router provisioning with 4.9.2.0
>
> Hi,
>
> Last night I upgraded a CloudStack 4.5.2 setup to 4.9.2.0. All went
well,
> but the VR provisioning is terribly slow which causes all kinds of
problems.
>
> The vr_cfg.sh and update_config.py scripts start to run. Restart
dnsmasq,
> add metadata, etc.
>
> But for just 1800 hosts this can take up to 2 hours and that causes
> timeouts in the management server and other problems.
>
> 2 hours is just very, very slow. So I am starting to wonder if
something
> is wrong here.
>
> Did anybody else see this?
>
> Running Basic Networking with CloudStack 4.9.2.0
>
> Wido
>
rohit.ya...@shapeblue.com
www.shapeblue.com
53 Chandos Place, Covent Garden, London WC2N 4HSUK
@shapeblue
