API calls are slow on fresh OSP 16.2 installation, fine when upgraded from OSP13

Solution In Progress - Updated -

Issue

High latencies can be seen on API calls on Heat, Keystone and Nova:

# openstack --debug --timing server list ( file 0160-openstack_server_list.out )
+---------------------------------------------------------------------------------------+-----------+
| URL                                                                                   |   Seconds |
+---------------------------------------------------------------------------------------+-----------+
| GET https://os-controller1:13000/                                   |  0.020872 |
| POST https://os-controller1:13000/v3/auth/tokens                    |  0.564705 |
| POST https://os-controller1:13000/v3/auth/tokens                    |  0.605489 |
| GET https://os-controller1:13774/v2.1/servers/detail                | 14.243243 | <=
| GET https://os-controller1:13774/v2.1/flavors/detail?is_public=None |  6.032682 | <=
| Total                                                                                 | 21.466991 |
+---------------------------------------------------------------------------------------+-----------+

Environment

  • Red Hat Openstack Platform 16.2

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