Sure looks like RabbitMQ. How many workers do have you configured? Could you try to changing the uwsgi configuration to workers=1 (or processes=1) and then see if it goes beyond 30 connections to amqp. From: Ionut Biru <ionut@fleio.com> Sent: Monday, January 4, 2021 4:07 AM To: Erik Olof Gunnar Andersson <eandersson@blizzard.com> Cc: feilong <feilong@catalyst.net.nz>; openstack-discuss <openstack-discuss@lists.openstack.org> Subject: Re: [magnum][api] Error system library fopen too many open files with magnum-auto-healer Hi Erik, Here is lsof of one uwsgi api. https://paste.xinu.at/5YUWf/<https://urldefense.com/v3/__https:/paste.xinu.at/5YUWf/__;!!Ci6f514n9QsL8ck!wv_wzG-Ntk0gd3ReOupQl-iXIcWpPR3genCqeKNY5JCKZDWxQHSqqa-uxxgUFFhz0Q$> I have kubernetes 12.0.1 installed in env. On Sun, Jan 3, 2021 at 3:06 AM Erik Olof Gunnar Andersson <eandersson@blizzard.com<mailto:eandersson@blizzard.com>> wrote: Maybe something similar to this? https://github.com/kubernetes-client/python/issues/1158<https://urldefense.com/v3/__https:/github.com/kubernetes-client/python/issues/1158__;!!Ci6f514n9QsL8ck!wv_wzG-Ntk0gd3ReOupQl-iXIcWpPR3genCqeKNY5JCKZDWxQHSqqa-uxxgAtzJkNg$> What does lsof say?