Bug 1581409
Summary: | Limit ranges are being applied with cpu-cfs-quota set to false | |||
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Product: | OpenShift Container Platform | Reporter: | Taneem Ibrahim <tibrahim> | |
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, jokerman, mmccomas | |
Target Milestone: | --- | |||
Target Release: | 3.10.0 | |||
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
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Story Points: | --- | |
Clone Of: | ||||
: | 1581860 1581861 1581862 1581863 1582486 1582487 (view as bug list) | Environment: | ||
Last Closed: | 2018-07-30 19:16:14 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: | ||||
Bug Blocks: | 1581860, 1581861, 1581862, 1581863, 1582486, 1582487 |
Description
Taneem Ibrahim
2018-05-22 17:03:21 UTC
Verify build https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=16434524 [root@ip-172-18-12-225 test]# rpm -qa|grep openshift atomic-openshift-master-3.7.46-1.git.1.849c97d.el7.x86_64 atomic-openshift-docker-excluder-3.7.46-1.git.1.849c97d.el7.noarch tuned-profiles-atomic-openshift-node-3.7.46-1.git.1.849c97d.el7.x86_64 atomic-openshift-excluder-3.7.46-1.git.1.849c97d.el7.noarch atomic-openshift-clients-3.7.46-1.git.1.849c97d.el7.x86_64 atomic-openshift-node-3.7.46-1.git.1.849c97d.el7.x86_64 atomic-openshift-3.7.46-1.git.1.849c97d.el7.x86_64 atomic-openshift-sdn-ovs-3.7.46-1.git.1.849c97d.el7.x86_64 [root@ip-172-18-12-225 ~]# oc version oc v3.7.46 kubernetes v1.7.6+a08f5eeb62 features: Basic-Auth GSSAPI Kerberos SPNEGO Server https://ip-172-18-12-225.ec2.internal:8443 openshift v3.7.46 kubernetes v1.7.6+a08f5eeb62 Verify steps: //Scenario A cpu-cfs-quota=false kubeletArguments: cpu-cfs-quota: - 'false' 1. Create a burstable pod [root@ip-172-18-12-225 ~]# oc create -f pod.yaml pod "burstable-vqpsr" created [root@ip-172-18-12-225 ~]# [root@ip-172-18-12-225 ~]# oc get po -o yaml|grep -i uid openshift.io/scc: anyuid uid: 5a2dea60-6031-11e8-89e2-0eb7f09c6860 2. On node the pod located to check the cpu.cfs_quota_us in pod level cgroup. [root@ip-172-18-5-70 test]# cat /sys/fs/cgroup/cpu/kubepods.slice/kubepods-burstable.slice/kubepods-burstable-pod5a2dea60_6031_11e8_89e2_0eb7f09c6860.slice/cpu.cfs_quota_us -1 //Scenario B cpu-cfs-quota=true kubeletArguments: cpu-cfs-quota: - 'true' 1. Create a burstable pod [root@ip-172-18-12-225 ~]# oc create -f pod.yaml pod "burstable-8tmdv" created [root@ip-172-18-12-225 ~]# oc get po -o yaml|grep uid openshift.io/scc: anyuid uid: 9ec90ce2-6031-11e8-89e2-0eb7f09c6860 [root@ip-172-18-12-225 ~]# oc get po NAME READY STATUS RESTARTS AGE burstable-8tmdv 1/1 Running 0 22s 2. On node the pod located to check the cpu.cfs_quota_us in pod level cgroup. [root@ip-172-18-5-70 test]# cat /sys/fs/cgroup/cpu/kubepods.slice/kubepods-burstable.slice/kubepods-burstable-pod9ec90ce2_6031_11e8_89e2_0eb7f09c6860.slice/cpu.cfs_quota_us 100000 //pod.yaml apiVersion: v1 kind: Pod metadata: generateName: burstable- spec: containers: - image: busybox name: busybox command: - sleep - "3600" resources: requests: memory: 1500Mi cpu: 300m limits: cpu: 1 memory: 3Gi restartPolicy: Always terminationGracePeriodSeconds: 0 Verified on openshift v3.10.0-0.60.0 Step can ref comment 9 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-2018:1816 |