[rdo-list] Strange API latency issue

[Christopher Brown]

Hello,

Wondering if anyone can shed any light on the following:

I'm seeing a ~2 second delay in some API responses using Mitaka trunk. E.g.

$ openstack endpoint list --timing

<list of endpoints>

+----------------------------------------------------------------------------+-----------+
|
URL
|   Seconds |
+----------------------------------------------------------------------------+-----------+
| GET http://PUBLIC_VIP:35357/v3
|  0.009938 |
| POST http://PUBLIC_VIP:35357/v3/auth/tokens
|  0.257309 |
| POST http://PUBLIC_VIP:35357/v3/auth/tokens
|  0.171096 |
| GET http://PUBLIC_VIP:35357/
|  1.741362 |
| GET http://PUBLIC_VIP:35357/v3/endpoints
|  0.026326 |
| GET http://PUBLIC_VIP:35357/v3/services/b28a9d7986684c52905ea2f45fd6dffe
|  0.023991 |
| GET http://PUBLIC_VIP:35357/v3/services/1fb856a569714d44b787868151f995b6
|  0.025029 |
| GET http://PUBLIC_VIP:35357/v3/services/b28a9d7986684c52905ea2f45fd6dffe
|  0.028141 |
| GET http://PUBLIC_VIP:35357/v3/services/a857a42350e74106881534bcb19ebaf7
|  1.995946 |
| GET http://PUBLIC_VIP:35357/v3/services/442c73aabbb141e6839002665c35579f
|  0.022442 |
| GET http://PUBLIC_VIP:35357/v3/services/d1a85a3b47de41aeb10a4ae087048a20
|  0.037483 |
| GET http://PUBLIC_VIP:35357/v3/services/25c587016a16407fb682e36fe3f62532
|  1.939549 |
| GET http://PUBLIC_VIP:35357/v3/services/1fb856a569714d44b787868151f995b6
|  0.031643 |
| GET http://PUBLIC_VIP:35357/v3/services/8d072c313df44f639f9d30cdd6165621
|  0.032537 |
| GET http://PUBLIC_VIP:35357/v3/services/442c73aabbb141e6839002665c35579f
|  0.022227 |
| GET http://PUBLIC_VIP:35357/v3/services/25c587016a16407fb682e36fe3f62532
|  1.974827 |
| GET http://PUBLIC_VIP:35357/v3/services/734da843f77c4e4689b0772dbd6960f3
|   2.15859 |
| GET http://PUBLIC_VIP:35357/v3/services/8d072c313df44f639f9d30cdd6165621
|  0.023067 |
<snip>
|
Total
| 11.086058 |
+----------------------------------------------------------------------------+-----------+

11 seconds is pretty good, can be anything up to 90 seconds.

I have another installation which works fine, all response in milliseconds.

I have deployed with network isolation and predictable IPs. The only
situation where this does not seem to exhibit is if I disable the external
network entirely using controll-no-external.yaml.

-- 
Chris
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