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Connection to neutron failed: ECONNREFUSED 111 Maximum attempts reached

asked 2015-01-21 10:45:10 -0500

Fishbone gravatar image

I have an openstack icehouse deployment developed under the three node architecture utilizing the neutron networking schema with the ml2 plugin. All nodes are running Ubuntu 14.04 x64 server. I recently setup a second compute node and I get the error: "Connection to neutron failed: Maximum attempts reached" in my nova-compute.log file when attempting to launch instances. I get no errors in any neutron log files or nova files on the controller. I also do not get this error on the first node. I replicated the configuration of the compute nodes, only changing hostnames and IP addresses. One other difference is that the second node is running the linux 3.17 kernel, while all other nodes are running 3.14. From the second node I can connect to rabbitmq, ping all other nodes with name resolution, authenticate into keystone and view all neutron stats, view that the 2nd node is listed under the neutron agent-list. I am wondering if the difference in kernels may be the cause, or if I am missing something. Thank you for your time.

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can you check whether neutron-server is running or not from process list?

  1. ps -elf | grep neutron-server

Last time i got this error because neutron-server was not running.

Ranjit gravatar imageRanjit ( 2015-01-22 02:56:09 -0500 )edit

Thanks for the response, according to the install documentation there is no neutron-server service instance running or required.

Fishbone gravatar imageFishbone ( 2015-01-22 14:22:53 -0500 )edit

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answered 2015-01-22 14:24:21 -0500

Fishbone gravatar image

My apologies, it was a typo in my nova.conf on the line that sets the neutron_auth_url i had it as "-" instead of "=". If anyone gets this specific error please be sure to analyze your confs and be sure you have entered everything correctly.

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Asked: 2015-01-21 10:45:10 -0500

Seen: 737 times

Last updated: Jan 22 '15