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We have ensured that the both UDP and TCP communication is good between VM1 and VM2. Also if you see ceilometer debug output in my initial e-mail, the first keystone REST (curl -g -i -X GET http://mysite-ceilometer-6:5000/v2.0) from VM2 to VM1 was successful, it hanged only at the second keystone REST (POST http://mysite-ceilometer-6:5000/v2.0/tokens). So communication seems like not a problem here.

ubuntu at mysite-ceilometer-7:~$ ping 10.0.4.4
PING 10.0.4.4 (10.0.4.4) 56(84) bytes of data.
64 bytes from 10.0.4.4: icmp_seq=1 ttl=64 time=3.51 ms
64 bytes from 10.0.4.4: icmp_seq=2 ttl=64 time=2.03 ms
64 bytes from 10.0.4.4: icmp_seq=3 ttl=64 time=1.37 ms
^C
--- 10.0.4.4 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 1.372/2.307/3.511/0.893 ms


ubuntu at mysite-ceilometer-6:~$ nc -l 1048
Hello
How is the connection?
Good

ubuntu at mysite-ceilometer-7:~$ nc 10.0.4.4 1048
Hello
How is the connection?
Good


-----Original Message-----
From: gordon chung [mailto:gord at live.ca] 
Sent: Wednesday, November 23, 2016 8:22 PM
To: openstack-dev at lists.openstack.org
Subject: Re: [openstack-dev] [keystone][ceilometer] 'ceilometer -d meter-list' hangs in "Making authentication request to keystone"



On 23/11/16 09:16 PM, Srikanth Vavilapalli wrote:
> Yes, I agree, this issue is not related to ceilometer. We have verified that none of the keystone commands (keystone endpoint-list, keystone catalog, keystone user-list) are working in that VM2, they all stuck in getting the token-get operation (/v2.0/tokens).
>
> If I had to suspect the keystone server setup in my VM1, then the keystone client on VM3 also wouldn't work. So seems something else is going wrong here. The keystone debugs logs also not helping much here...

you could try seeing if you can access vm1 from vm2. i imagine you have some networking issues.

>
> On the last part, could you plz point us to any existing wiki pages that describe to migrate away from ceilometer-api? Thanks for ur help...

we have a guide on how to switch to Gnocchi[1]. we don't currently have a guide to switch to anything else but you can always just use either udp or http publishers and push to your required target... that our just push to oslo.messaging topic and have your service consume from it.

[1]
http://docs.openstack.org/developer/ceilometer/install/dbreco.html#moving-from-ceilometer-to-gnocchi

cheers,

--
gord

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