Bug 2256560 - change priority of mds rss perf counter to useful
Summary: change priority of mds rss perf counter to useful
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: CephFS
Version: 6.1
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
: 7.1
Assignee: Venky Shankar
QA Contact: Hemanth Kumar
Akash Raj
URL:
Whiteboard:
Depends On:
Blocks: 2256731 2267614 2298578 2298579
TreeView+ depends on / blocked
 
Reported: 2024-01-03 04:41 UTC by Santosh Pillai
Modified: 2024-07-18 07:59 UTC (History)
6 users (show)

Fixed In Version: ceph-18.2.1-2.el9cp
Doc Type: Enhancement
Doc Text:
.MDS Resident Segment Size RSS) performance counter is tracked with a higher priority With this enhancement, the MDS Resident Segment Size (or RSS) performance counter is tracked with a higher priority to allow callers to consume its value to generate useful warnings. This allows Rook to identify the MDS RSS size and act accordingly.
Clone Of:
: 2256731 (view as bug list)
Environment:
Last Closed: 2024-06-13 14:24:13 UTC
Embargoed:
hyelloji: needinfo-

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 63765 0 None None None 2024-01-04 10:20:00 UTC
Github ceph ceph pull 54825 0 None Merged mds: change priority of mds rss perf counter to useful 2024-01-04 09:03:18 UTC
Red Hat Issue Tracker RHCEPH-8130 0 None None None 2024-01-03 04:43:38 UTC
Red Hat Product Errata RHSA-2024:3925 0 None None None 2024-06-13 14:24:22 UTC

Description Santosh Pillai 2024-01-03 04:41:46 UTC 
Description of problem:
mds_cache_mem_rss perf counter can be a useful metric to detect the usage of mds cache and detect mds cache oversize before it happens. Requesting to change the priority of the mds_rss metric from Debug to useful



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

How reproducible:
NA

Steps to Reproduce:
1.
2.
3.

Actual results:
NA

Expected results:
NA

Additional info:
Comment 1 RHEL Program Management 2024-01-03 04:41:58 UTC 
Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
Comment 4 Venky Shankar 2024-01-22 10:00:47 UTC 
Hemanth, to validate this (from cephfs pov) you can run:

> ceph daemonperf mds.<id>

and see if `rss` field shows up in mds_mem section.
Comment 8 errata-xmlrpc 2024-06-13 14:24:13 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 (Critical: Red Hat Ceph Storage 7.1 security, enhancements, and bug fix 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-2024:3925
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