On 2015-08-31 17:14, George Mihaiescu wrote:
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...
Thanks for the sanity check, George. You know -- I've gotten so used to
thinking in terms of performance and GRE tunnels and other abstractions
that sometimes I just forget to look at the physical layer... where,
yes, the dashboard node was dropping ~20% of its packets. Bad port or
cable (haven't checked which, yet).
Wups.
Don't understand why I didn't see massive retransmits in the pcap, but I
guess I'm not going to worry myself with that too much.
Thanks, all,
-Ken
George
On 31 Aug 2015 15:03, "Ken D'Ambrosio" <k...@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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