*** Bug 1928618 has been marked as a duplicate of this bug. ***
$ oc get clusterversions.config.openshift.io NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.7.0-0.nightly-2021-03-27-082615 True False 51m Cluster version is 4.7.0-0.nightly-2021-03-27-082615 $ oc project openshift-cluster-node-tuning-operator Now using project "openshift-cluster-node-tuning-operator" on server "https://api.skordas32947.qe.devcluster.openshift.com:6443". $ node=$(oc get nodes | grep -m 1 worker | cut -f 1 -d ' ') && echo $node ip-10-0-147-104.us-east-2.compute.internal $ pod=$(oc get pods -n openshift-cluster-node-tuning-operator -o wide | grep $node | cut -d ' ' -f 1) && echo $pod tuned-46ms5 $ oc label node $node node-role.kubernetes.io/worker-rt= node/ip-10-0-147-104.us-east-2.compute.internal labeled $ oc get nodes NAME STATUS ROLES AGE VERSION ip-10-0-147-104.us-east-2.compute.internal Ready worker,worker-rt 71m v1.20.0+bafe72f ip-10-0-154-13.us-east-2.compute.internal Ready master 77m v1.20.0+bafe72f ip-10-0-161-142.us-east-2.compute.internal Ready master 77m v1.20.0+bafe72f ip-10-0-186-22.us-east-2.compute.internal Ready worker 72m v1.20.0+bafe72f ip-10-0-214-168.us-east-2.compute.internal Ready worker 72m v1.20.0+bafe72f ip-10-0-219-33.us-east-2.compute.internal Ready master 77m v1.20.0+bafe72f $ oc create -f- <<EOF apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfigPool metadata: name: worker-rt labels: worker-rt: "" spec: machineConfigSelector: matchExpressions: - {key: machineconfiguration.openshift.io/role, operator: In, values: [worker,worker-rt]} nodeSelector: matchLabels: node-role.kubernetes.io/worker-rt: "" EOF machineconfigpool.machineconfiguration.openshift.io/worker-rt created # stalld enabled $ oc create -f- <<EOF apiVersion: tuned.openshift.io/v1 kind: Tuned metadata: name: openshift-realtime namespace: openshift-cluster-node-tuning-operator spec: profile: - data: | [main] summary=Custom OpenShift realtime profile include=openshift-node,realtime [variables] # isolated_cores take a list of ranges; e.g. isolated_cores=2,4-7 isolated_cores=1 #isolate_managed_irq=Y not_isolated_cores_expanded=${f:cpulist_invert:${isolated_cores_expanded}} [bootloader] cmdline_ocp_realtime=+systemd.cpu_affinity=${not_isolated_cores_expanded} [service] service.stalld=start,enable name: openshift-realtime recommend: - machineConfigLabels: machineconfiguration.openshift.io/role: "worker-rt" priority: 20 profile: openshift-realtime EOF tuned.tuned.openshift.io/openshift-realtime created $ oc get tuned NAME AGE default 76m openshift-realtime 23s rendered 76m $ oc get mcp NAME CONFIG UPDATED UPDATING DEGRADED MACHINECOUNT READYMACHINECOUNT UPDATEDMACHINECOUNT DEGRADEDMACHINECOUNT AGE master rendered-master-79a3dc29d96e9d9386b4b39b6067fd32 True False False 3 3 3 0 80m worker rendered-worker-9db7a4d01330d47cb1b56c2e0bf5be30 True False False 2 2 2 0 80m worker-rt rendered-worker-rt-8c07700b24d5949d3e634d8a235cc600 True False False 1 1 1 0 2m56s $ oc logs $pod ... 2021-03-29 16:49:54,444 INFO tuned.daemon.daemon: static tuning from profile 'openshift-realtime' applied $ oc debug node/$node Creating debug namespace/openshift-debug-node-rrtlh ... Starting pod/ip-10-0-147-104us-east-2computeinternal-debug ... To use host binaries, run `chroot /host` Pod IP: 10.0.147.104 If you don't see a command prompt, try pressing enter. sh-4.4# ps auxww | grep stalld root 3583 0.5 0.0 8180 2928 ? Ss 16:49 0:00 /usr/local/bin/stalld --systemd -p 1000000000 -r 10000 -d 3 -t 20 --log_syslog --log_kmsg --foreground --pidfile /run/stalld.pid root 4837 0.0 0.0 9184 1080 pts/0 S+ 16:52 0:00 grep stalld sh-4.4# exit exit Removing debug pod ... Removing debug namespace/openshift-debug-node-rrtlh ... # stalld is running - as expected! # Disabling stalld $ oc edit tuned openshift-realtime # edit service.stalld=start,enable -> service.stalld=stop,disable $ oc debug node/$node Creating debug namespace/openshift-debug-node-xpv4v ... Starting pod/ip-10-0-147-104us-east-2computeinternal-debug ... To use host binaries, run `chroot /host` Pod IP: 10.0.147.104 If you don't see a command prompt, try pressing enter. sh-4.4# ps auxww | grep stalld root 4023 0.0 0.0 9184 1084 pts/0 S+ 16:56 0:00 grep stalld sh-4.4# exit exit Removing debug pod ... Removing debug namespace/openshift-debug-node-xpv4v ... # Stalld is not running as expected # enable back stalld $ oc edit tuned openshift-realtime # edit service.stalld=stop,disable -> service.stalld=start,enable $ oc debug node/$node Creating debug namespace/openshift-debug-node-qwk9q ... Starting pod/ip-10-0-147-104us-east-2computeinternal-debug ... To use host binaries, run `chroot /host` Pod IP: 10.0.147.104 If you don't see a command prompt, try pressing enter. sh-4.4# ps auxww | grep stalld root 3665 0.8 0.0 7964 2788 ? Ss 16:59 0:00 /usr/local/bin/stalld --systemd -p 1000000000 -r 10000 -d 3 -t 20 --log_syslog --log_kmsg --foreground --pidfile /run/stalld.pid root 3927 0.0 0.0 9184 968 pts/0 S+ 16:59 0:00 grep stalld sh-4.4# exit exit Removing debug pod ... Removing debug namespace/openshift-debug-node-qwk9q ... # stalld enabled - as expected! # After multiple enabling/disabling stalld was enabled/disabled in correct way.
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 (Moderate: OpenShift Container Platform 4.7.5 security and 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/RHSA-2021:1005