Red Hat Bugzilla – Bug 1462681
Containerized install: repeated "Could not get instant cpu stats". Heapster not running.
Last modified: 2017-06-19 06:08:24 EDT
Description of problem:
OCP 3.6.116 installed containerized on AWS. Node logs show repeated instances of
Could not get instant cpu stats: different number of cpus
Could not get instant cpu stats: cumulative stats decrease
I saw https://bugzilla.redhat.com/show_bug.cgi?id=1437325 but the commentary there was that it was not a problem if not repeated. In this case it is definitely repeated. Heapster is not running
I am not seeing --system-reserved for CPU working in this environment. I will file that as a separate bz but wanted to log this in case it was relevant.
Version-Release number of selected component (if applicable): 3.6.116
How reproducible: Always
Steps to Reproduce:
1. Install OCP 3.6 containerized on AWS EC2 (1 master/etcd, 1 infra, 2 nodes)
2. journalctl -fu atomic-openshift-node and watch for the messages in the description above
Warning messages about unable to retrieve cpu stats. Also --system-reserved for CPU is having no effect, but will log that as a separate issue.
While trying to gather logs for this issue I noticed that atomic-openshift-master was running as an unconfigured process. Once I yum removed that package and made sure systemd units were clean, I no longer see the issue. Closing this bug.