Introduced in 4.7.21, fully fixed in 4.7.29
*** Bug 2002779 has been marked as a duplicate of this bug. ***
I did a comparison between 4.7.30 and 4.9 nightly. Crio memory usage is in similar range. $ oc get node NAME STATUS ROLES AGE VERSION ip-10-0-49-219.us-east-2.compute.internal Ready master 134m v1.20.0+9689d22 ip-10-0-49-36.us-east-2.compute.internal Ready master 134m v1.20.0+9689d22 ip-10-0-50-162.us-east-2.compute.internal Ready worker 125m v1.20.0+9689d22 ip-10-0-68-25.us-east-2.compute.internal Ready worker 124m v1.20.0+9689d22 ip-10-0-74-144.us-east-2.compute.internal Ready master 134m v1.20.0+9689d22 $ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.7.30 True False 114m Cluster version is 4.7.30 $ oc debug node/ip-10-0-50-162.us-east-2.compute.internal Starting pod/ip-10-0-50-162us-east-2computeinternal-debug ... ... sh-4.4# ps aux | grep -e "\/usr\/bin\/crio" root 1287 2.6 0.7 2219760 123648 ? Ssl 07:25 3:23 /usr/bin/crio --enable-metrics=true --metrics-port=9537 sh-4.4# ps -p 1287 -o pid,rss,vsz,cmd PID RSS VSZ CMD 1287 106692 2219760 /usr/bin/crio --enable-metrics=true --metrics-port=9537 $ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.9.0-0.nightly-2021-09-01-193941 True False 125m Cluster version is 4.9.0-0.nightly-2021-09-01-193941 $ oc get nodes NAME STATUS ROLES AGE VERSION ip-10-0-134-113.ap-south-1.compute.internal Ready worker 157m v1.22.0-rc.0+bbcc9ae ip-10-0-136-105.ap-south-1.compute.internal Ready master 168m v1.22.0-rc.0+bbcc9ae ip-10-0-170-97.ap-south-1.compute.internal Ready master 168m v1.22.0-rc.0+bbcc9ae ip-10-0-183-52.ap-south-1.compute.internal Ready worker 157m v1.22.0-rc.0+bbcc9ae ip-10-0-193-186.ap-south-1.compute.internal Ready worker 156m v1.22.0-rc.0+bbcc9ae ip-10-0-201-41.ap-south-1.compute.internal Ready master 168m v1.22.0-rc.0+bbcc9ae $ oc debug node/ip-10-0-134-113.ap-south-1.compute.internal Starting pod/ip-10-0-134-113ap-south-1computeinternal-debug ... ... sh-4.4# ps -p 1295 -o pid,rss,vsz,cmd PID RSS VSZ CMD 1295 111392 2028600 /usr/bin/crio
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.7.32 bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:3636