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Mitaka Horizon very slow (spinning wheel)

I have recently install Mitaka Openstack using RDO and it's very slow even its fresh installed.

Hardware: HP DL360 G9 CPU: 24 Memory: 16GB

Any idea or anyone came across with this behavior?

Mitaka Horizon very slow (spinning wheel)

I have recently install Mitaka Openstack using RDO and it's very slow even its fresh installed.

Hardware: HP DL360 G9
CPU: 24
24 
Memory: 16GB

16GB

Any idea or anyone came across with this behavior?

top command:

top - 17:53:25 up  2:39,  1 user,  load average: 1.30, 1.43, 1.17
Tasks: 772 total,   1 running, 771 sleeping,   0 stopped,   0 zombie
%Cpu(s):  1.1 us,  0.3 sy,  0.0 ni, 98.2 id,  0.3 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 16139136 total,   158284 free, 15600968 used,   379884 buff/cache
KiB Swap:  4194300 total,   775680 free,  3418620 used.   125040 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
29962 rabbitmq  20   0 12.667g 115156   2608 S   1.7  0.7   2:16.46 beam.smp
11145 cinder    20   0  506092  16872   2776 S   1.3  0.1   0:44.91 cinder-vol+
10099 ceilome+  20   0 1785512  45484   3012 S   1.0  0.3   0:29.98 ceilometer+
14813 nova      20   0  420104  34996   2764 S   1.0  0.2   0:43.50 nova-api
19327 nova      20   0  361240  56268   2740 S   1.0  0.3   0:39.98 nova-condu+
22173 ceilome+  20   0 1148448  64292   2408 S   1.0  0.4   0:16.06 httpd
  313 swift     20   0  259496  21676   2696 S   0.7  0.1   0:30.87 swift-obje+
  901 root      20   0  158312   2416   1064 R   0.7  0.0   0:04.36 top
 3940 gnocchi   20   0  581536  84296   2388 S   0.7  0.5   0:04.57 gnocchi-me+
 3966 gnocchi   20   0  582132  84516   2388 S   0.7  0.5   0:04.37 gnocchi-me+
11071 cinder    20   0  520996  26936   2776 S   0.7  0.2   0:46.63 cinder-api
12598 glance    20   0  365836  32904   2764 S   0.7  0.2   0:43.32 glance-api
14257 aodh      20   0  546484  55908   3208 S   0.7  0.3   0:16.29 aodh-evalu+
19384 nova      20   0  373372  84248   1980 S   0.7  0.5   0:06.29 nova-condu+
31861 swift     20   0  269616   4104   2692 S   0.7  0.0   0:31.83 swift-cont+
31984 mysql     20   0 12.615g 171252      0 S   0.7  1.1   0:39.88 mysqld
32518 swift     20   0  289416  18328   2728 S   0.7  0.1   0:32.50 swift-prox+