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Bug #58843

open

mgr/dashboard: Daemon Memory Usage is incorrect

Added by Paul Cuzner about 1 year ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
Component - Services & Daemons
Target version:
Ceph - v18.0.0
% Done:

0%

Source:
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
Ceph - v18.0.0
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Daemon Memory Usage is incorrect

The daemon memory usage is showing > 60GB, when the actual RSS is < 6 (osd_memory_target is 6GiB) [screenshot provided]

I think these values are sourced from podman stats...if so is this a podman version issue?

Environment

  • ceph version string: ceph version 18.0.0-2440-g94c24db3 (94c24db3fe85a6772806e7f8794d74d0408cd734) reef (dev)
  • Platform (OS/distro/release): RHEL 8.7
  • Cluster details (nodes, monitors, OSDs):3 node cluster,3 mons, 12 OSDs
  • Did it happen on a stable environment or after a migration/upgrade?: -
  • Browser used (e.g.: Version 86.0.4240.198 (Official Build) (64-bit)): Firefox 110

How reproducible

Steps:

  1. Should be observable on any longish running cluster.
  3. ...

Actual results

Memory shown is incorrect

Expected results

I would expect to see the value align to the actual usage - especially when ceph attempts to keep RAM usage under the osd_memory_target value.

Additional info
podman-4.2.0-1.module+el8.7.0+16772+33343656.x86_64

Files

Screenshot from 2023-02-24 16-19-33.png (217 KB) Screenshot from 2023-02-24 16-19-33.png Paul Cuzner, 02/24/2023 03:38 AM

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