Bug 2119100

Summary:	(RHCS 5.3z1) heap command returning empty output
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Prashant Dhange <pdhange>
Component:	RADOS	Assignee:	Prashant Dhange <pdhange>
Status:	CLOSED ERRATA	QA Contact:	Harsh Kumar <hakumar>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	5.1	CC:	akupczyk, amathuri, bhubbard, ceph-eng-bugs, cephqe-warriors, choffman, ksirivad, lflores, nojha, pdhange, rfriedma, rmandyam, rzarzyns, skanta, sseshasa, tserlin, vumrao
Target Milestone:	---
Target Release:	5.3z1
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	ceph-16.2.10-119.el8cp	Doc Type:	Bug Fix
Doc Text:	.The `ceph daemon heap status` command shows the heap status Previously, due to a failure to get heap information through the `ceph daemon` command, the `ceph daemon heap stats` command would return empty output instead of returning current heap usage for a Ceph daemon. This was because `ceph::osd_cmds::heap()` was confusing the `stderr` and `stdout` concept which caused the difference in output. With this fix, the `ceph daemon heap stats` command returns heap usage information for a Ceph daemon similar to what we get using the `ceph tell` command.	Story Points:	---
Clone Of:
Clones:	2119101 (view as bug list)		Environment:
Last Closed:	2023-02-28 10:05:14 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:	2119101

Description Prashant Dhange 2022-08-17 14:32:43 UTC

Description of problem:
While fetching heap stats/dump through ceph daemon command, we are neither getting heap command output or error message. This issue has affected both OSD and MDS daemons. 

It seems all RHCS 5 versions are affected by this bug

Version-Release number of selected component (if applicable):
ceph version 16.2.7-98.el8cp

How reproducible:
Frequently

Steps to Reproduce:
1. Deploy RHCS 5.x cluster
2. Get heap dump using ceph daemon command
$ ceph daemon osd.x heap stats
3. Observe empty heap stats output

Actual results:
ceph daemon heap command fail to provide desired output

Expected results:
ceph daemon heap command should output heap stats/dump details

Additional info:

Comment 22 errata-xmlrpc 2023-02-28 10:05:14 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 (Important: Red Hat Ceph Storage 5.3 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-2023:0980