Installed the APIC-EM v1.2 on a VM. Got up and running the ui, reverse proxy & router services from the grapevine console. when tried to login to the APIC-EM and enter the credentials in the APIC-EM login page getting stuck loading but never change as shown below: 
Followed the Tshoot steps in the post-installation tasks but unable to find the issue.
Could we check services status .
1. ssh to the APIC_EM Console OR https://<api-em>:14141
2. user name grapevine
3. grape intance status to check for all services running. All services should be in Running state
Checked the grape instane status and the only running services are the router, reverse proxy and ui services:
From the web interface can see the following:
should all the services be up and running. The Troubleshoot info states that these three are the main services.
output from the grape instance status command: 
wait for all the services to change to running state.
there are services in harvested state . you need to wait for all services to be in running state
There are total of around 34 services. All services should come to running state.
You could monitor the service state from https://<apic-em>:14141
If is it taking more time then likely than not, this might be because of the disk throughput of your host on which APIC-EM ISO/OVA is deployed.
If you SSH into the APIC-EM shell and run check_diskio command, you should get the output. E.g.
$ check_diskio
Running disk check (count=512), please wait...
512+0 records in
512+0 records out
536870912 bytes (537 MB) copied, 2.05017 s, 262 MB/s
Cleaning temp files...
Disk check complete
(grapevine)
More likely than not, this might be because of the disk throughput of your host on which APIC-EM ISO/OVA is deployed.
make sure your host is compliant with following specs
| CPU (cores) | Minimum Required: 6, Recommend: 12 |
| CPU (speed) | 2.4 GHz |
| Memory | 64 GB [ For a multi-host hardware deployment (2 or 3 hosts) only 32GB of RAM is required for each host. ] |
| Disk Capacity | 500 GB of available/usable storage after hardware RAID |
| RAID Level | Hardware-based RAID at RAID Level 10 |
| Disk I/O Speed | 200 MBps |
you need 32G min for all services to come up at present. You will also need to have the right number of vcpu.
Any less and you will have issues. for 1.2.1 there was a 16G version, but for 1.3 code, it is 32G.
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