Open Stack

Hi,
I have problem with neutron vpnaas - after enabling vpnaas plugin everything was ok at first. I was able to create VPN connection and communication is correct. But after a week of running vpnaas (only one VPN connection created/working!) I’ve noticed, that neutron-vpnaas takes more and more memory. I have 5 processes on each controller (there should be always five? Or it is changing dynamically?):

42435    1545384  0.6  8.6 5802516 5712412 ?     S    Jun15 110:50 /var/lib/kolla/venv/bin/python3.8 /var/lib/kolla/venv/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-file /etc/neutron/neutron_vpnaas.conf
42435    1545389  0.6  8.5 5735832 5645856 ?     S    Jun15 112:16 /var/lib/kolla/venv/bin/python3.8 /var/lib/kolla/venv/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-file /etc/neutron/neutron_vpnaas.conf
42435    1545378  0.5  8.5 5734192 5643620 ?     S    Jun15 108:09 /var/lib/kolla/venv/bin/python3.8 /var/lib/kolla/venv/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-file /etc/neutron/neutron_vpnaas.conf
42435    1545372  0.5  8.5 5731128 5641436 ?     S    Jun15 109:07 /var/lib/kolla/venv/bin/python3.8 /var/lib/kolla/venv/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-file /etc/neutron/neutron_vpnaas.conf
42435    1545369  0.6  8.4 5637084 5547392 ?     S    Jun15 114:21 /var/lib/kolla/venv/bin/python3.8 /var/lib/kolla/venv/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-file /etc/neutron/neutron_vpnaas.conf

now neutron_server takes over 27G of RAM on each controller:

neutron_server         running  10.2  27.2G

After stopping all neutron containers and starting it again neutron takes a lot less memory:

neutron_server         running   0.5   583M

but memory usage keeps growing (about 5-6 M every minute).
What’s wrong? When I disable vpnaas globally there’s no problem with excessive memory usage, so it’s vpnaas for sure…

Best regards
Adam Tomas
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20210628/18978fce/attachment.html>