Bug 1581862
| Summary: | [3.7] Limit ranges are being applied with cpu-cfs-quota set to false | ||
|---|---|---|---|
| Product: | OpenShift Container Platform | Reporter: | Seth Jennings <sjenning> |
| Component: | Node | Assignee: | Seth Jennings <sjenning> |
| Status: | CLOSED ERRATA | QA Contact: | DeShuai Ma <dma> |
| Severity: | urgent | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 3.7.0 | CC: | aos-bugs, bleanhar, dma, jokerman, mmccomas, tibrahim |
| Target Milestone: | --- | ||
| Target Release: | 3.7.z | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
Fixes an issue where cfs_quota might still be set on a pod even when cpu-cfs-quota is set to false on the node
|
Story Points: | --- |
| Clone Of: | 1581409 | Environment: | |
| Last Closed: | 2018-06-07 08:40:56 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1581409, 1581863, 1582486, 1582487 | ||
| Bug Blocks: | 1581860, 1581861 | ||
|
Comment 2
Seth Jennings
2018-05-25 15:02:36 UTC
Verify on v3.7.51
1. Set cpu-cfs-quota=false in /etc/origin/node/node-config.yaml then create a pod check the value of cpu.cfs_quota_us
[root@ip-172-18-15-169 ~]# oc get po -n dma1
NAME READY STATUS RESTARTS AGE
burstable-p95td 1/1 Running 0 3m
[root@ip-172-18-15-169 ~]# oc get po -n dma1 -o yaml|grep uid
openshift.io/scc: anyuid
uid: 20e73511-623f-11e8-96f1-0ee986d138ca
[root@ip-172-18-15-169 ~]# cat /sys/fs/cgroup/cpu/kubepods.slice/kubepods-burstable.slice/kubepods-burstable-pod20e73511_623f_11e8_96f1_0ee986d138ca.slice/cpu.cfs_quota_us
-1
2. Set cpu-cfs-quota=true in /etc/origin/node/node-config.yaml then create a pod check the value of cpu.cfs_quota_us
[root@ip-172-18-15-169 ~]# oc get po -n dma -w
NAME READY STATUS RESTARTS AGE
burstable-t9f62 0/1 ContainerCreating 0 6s
burstable-t9f62 1/1 Running 0 9s
[root@ip-172-18-15-169 ~]# oc get po -n dma -o yaml|grep uid
openshift.io/scc: anyuid
uid: e5e3caa1-623c-11e8-96f1-0ee986d138ca
[root@ip-172-18-11-1 ~]# cat /sys/fs/cgroup/cpu/kubepods.slice/kubepods-burstable.slice/kubepods-burstable-pode5e3caa1_623c_11e8_96f1_0ee986d138ca.slice/cpu.cfs_quota_us
100000
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, 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-2018:1798 |