The related fix has merged. https://review.openstack.org/#/c/126914/5
** Changed in: neutron Status: Confirmed => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1298803 Title: rpc worker makes neutron-server crash Status in OpenStack Neutron (virtual network service): Invalid Bug description: After upgrading from icehouse b2 to b3, neutron-server using zmq was crashed silently. No core dump, no exception, no error, no warnings. After I switched to rabbitmq, everything went well. It really drove me crazy. Then I tried to debug, it was really hard to do it, because there were no useful messages provided. Then I compared source codes between b2 and b3, and finally I found out the main difference between the two versions are that b3 enables a new rpc_worker mechanism. I removed all the related code back to the way b2 goes. Then the problem is immediately solved. I just guess that rpc_worker uses greenpool which has conflicts with the thread pool from zeromq. I suggest to claim in neutron.conf that it is incompatible with zeromq, and when rpc_worker == 0, just disable it. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1298803/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp