Bug 1955457

Summary: Drop container_memory_failures_total metric because of high cardinality
Product: OpenShift Container Platform Reporter: Simon Pasquier <spasquie>
Component: MonitoringAssignee: Simon Pasquier <spasquie>
Status: CLOSED ERRATA QA Contact: Junqi Zhao <juzhao>
Severity: high Docs Contact:
Priority: high    
Version: 4.6CC: alegrand, anpicker, erooth, kakkoyun, lcosic, pkrupa
Target Milestone: ---   
Target Release: 4.8.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of:
: 1955462 (view as bug list) Environment:
Last Closed: 2021-07-27 23:05:13 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: 1951052, 1955462    

Description Simon Pasquier 2021-04-30 07:36:45 UTC 
Description of problem:
The container_memory_failures_total metric is in the top 10 of metrics with high cardinality. It isn't used in any rule or dashboard. Storing the metric in Prometheus increases memory usage for no benefit.

Version-Release number of selected component (if applicable):
4.6

How reproducible:
Always

Steps to Reproduce:
1. Open the Prometheus UI, go to the Status > TSDB status page and look at the "Top 10 series count by metric names" section.

Actual results:
container_memory_failures_total is listed.

Expected results:
container_memory_failures_total isn't present.

Additional info:
N/A
Comment 2 Junqi Zhao 2021-05-06 03:55:35 UTC 
checked with 4.8.0-0.nightly-2021-05-05-030749, no container_memory_failures_total metrics now
# token=`oc sa get-token prometheus-k8s -n openshift-monitoring`
# oc -n openshift-monitoring exec -c prometheus prometheus-k8s-0 -- curl -k -H "Authorization: Bearer $token" 'https://prometheus-k8s.openshift-monitoring.svc:9091/api/v1/label/__name__/values' | jq | grep container_memory_failures_total
no result
Comment 5 errata-xmlrpc 2021-07-27 23:05:13 UTC 
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 4.8.2 bug fix and security 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-2021:2438