[Openstack] Slow Horizon on Icehouse.

George Mihaiescu lmihaiescu at gmail.com
Mon Aug 31 21:14:12 UTC 2015

Is it just dashboard that's slow?
How about "nova list" or "neutron port-list" from your dashboard node, as
well as from outside your environment?

Depending on how you have your endpoints configured in keystone (ip or
name) and how dns resolution is set in your environment, there might be
delays in the api calls...


On 31 Aug 2015 15:03, "Ken D'Ambrosio" <ken at jots.org> wrote:
> Hey, all.  I've got an Openstack install, with each control node on its
own 24 GB, quad-core system.  And yet my Horizon is really quite slow; I've
seen it take 15+ seconds to log in, click on the "routers" tab, etc.
> The only host among the control nodes that showed significant pain was
the MySQL host; I replaced its SATA disk with an SSD last night, and now
instead of a load average ~1.65, it's now around 0.10.  And things feel
marginally better, but it's still darn slow, so I'm guessing the primary
bottleneck was *not* MySQL.
> Any suggestions on what I should be digging into?  Logs in the cloud
controller box?  Known API bottlenecks?
> Thanks!
> -Ken
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