<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><meta http-equiv="content-type" content="text/html; charset=utf-8" class=""><div dir="auto" class="">Hi,<div class="">1. There is only one, bidirectional vpn connection between project networks in two regions<br class=""><div class="">2. there is no (or almost no) traffic on this vpn link</div><div class="">3. second region is on one host (kolla all-in-one) and situation looks the same- with vpn service enabled there is excessive Memory use (growing also about 5-6MB/ minute and forcing the system to use swapfile)</div><div class=""><br class=""></div><div class="">there is no big cpu usage (ofcourse also due to no traffic inside VPN)</div><div class=""> It's the same case even if there's no vpn connection configured.</div><div class="">Best regards<br class="">Adam Tomas<br class=""><div dir="ltr" class="">Wysłane z iPhone'a</div><div dir="ltr" class=""><br class=""><blockquote type="cite" class="">Wiadomość napisana przez Vinh Nguyen Duc <<a href="mailto:vinhducnguyen1708@gmail.com" class="">vinhducnguyen1708@gmail.com</a>> w dniu 29.06.2021, o godz. 11:04:<br class=""><br class=""></blockquote></div><blockquote type="cite" class=""><div dir="ltr" class=""><div dir="auto" class="">Hi Adam,</div><div dir="auto" class="">Do you think the VPN connection is use CPU and memory to encrypt the VPN traffic? </div><div class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 28, 2021 at 14:30 Adam Tomas <<a href="mailto:bkslash@poczta.onet.pl" class="">bkslash@poczta.onet.pl</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div style="word-wrap:break-word;line-break:after-white-space" class="">Hi,<div class="">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?):</div><div class=""><br class=""></div><div class=""><div class=""><font face="Courier" style="font-family: Courier;" class="">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</font></div><div class=""><font face="Courier" style="font-family: Courier;" class="">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</font></div><div class=""><font face="Courier" style="font-family: Courier;" class="">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</font></div><div class=""><font face="Courier" style="font-family: Courier;" class="">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</font></div><div class=""><font face="Courier" style="font-family: Courier;" class="">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</font></div></div><div class=""><font face="Courier" style="font-family: Courier;" class=""><br class=""></font></div><div class="">now neutron_server takes over 27G of RAM on each controller:</div><div class=""><font face="Courier" style="font-family: Courier;" class=""><br class=""></font></div><div class=""><font face="Courier" style="font-family: Courier;" class="">neutron_server running 10.2 27.2G</font></div><div class=""><font face="Courier" style="font-family: Courier;" class=""><br class=""></font></div><div class="">After stopping all neutron containers and starting it again neutron takes a lot less memory:</div><div class=""><font face="Courier" style="font-family: Courier;" class=""><br class=""></font></div><div class=""><font face="Courier" style="font-family: Courier;" class="">neutron_server running 0.5 583M</font></div><div class=""><font face="Courier" style="font-family: Courier;" class=""><br class=""></font></div><div class="">but memory usage keeps growing (about 5-6 M every minute).</div><div class="">What’s wrong? When I disable vpnaas globally there’s no problem with excessive memory usage, so it’s vpnaas for sure…</div><div class=""><br class=""></div><div class="">Best regards</div></div><div style="word-wrap:break-word;line-break:after-white-space" class=""><div class="">Adam Tomas</div></div></blockquote></div></div>
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