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Bug 2166819

Summary: /etc/pcp/pmcd/pmcd.conf getting rewritten without reason
Product: Red Hat Enterprise Linux 9 Reporter: Christian Horn <chorn>
Component: pcpAssignee: Nathan Scott <nathans>
Status: CLOSED ERRATA QA Contact: Jan Kurik <jkurik>
Severity: low Docs Contact: Jacob Taylor Valdez <jvaldez>
Priority: unspecified    
Version: 9.1CC: arajendr, jhuo, jkurik, nathans, scox
Target Milestone: rcKeywords: FutureFeature, Triaged
Target Release: 9.3Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: pcp-6.0.4-1.el9 Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of:
: 2211263 (view as bug list) Environment:
Last Closed: 2023-11-07 08:30:40 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: 2211263    

Description Christian Horn 2023-02-03 04:16:48 UTC
Description of problem:
/etc/pcp/pmcd/pmcd.conf getting rewritten without reason

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

How reproducible:
always

Steps to Reproduce:
[root@kosmos ~]# ll /etc/pcp/pmcd/pmcd.conf 
-rw-r--r--. 1 root root 1108 Feb  3 13:09 /etc/pcp/pmcd/pmcd.conf
[root@kosmos ~]# systemctl restart pmcd
[root@kosmos ~]# ll /etc/pcp/pmcd/pmcd.conf 

Actual results:
-rw-r--r--. 1 root root 1108 Feb  3 13:12 /etc/pcp/pmcd/pmcd.conf

Expected results:
-rw-r--r--. 1 root root 1108 Feb  3 13:09 /etc/pcp/pmcd/pmcd.conf

Additional info:
The contents of pmcd.conf are not rewritten in the observed cases,
so this is not because of pmda's having a .Needinstall file.

'Upgrade' files seem to lead to the rewriting, after removing them, pmcd.conf is
no longer rewritten:

/var/lib/pcp/pmdas/nfsclient/Upgrade
/var/lib/pcp/pmdas/dm/Upgrade
/var/lib/pcp/pmdas/openmetrics/Upgrade
/var/lib/pcp/pmdas/kvm/Upgrade
/var/lib/pcp/pmdas/bcc/Upgrade

[root@kosmos ~]# stat /etc/pcp/pmcd/pmcd.conf
  File: /etc/pcp/pmcd/pmcd.conf
  Size: 1108            Blocks: 8          IO Block: 4096   regular file
Device: 253,1   Inode: 268473606   Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Context: system_u:object_r:etc_t:s0
Access: 2023-02-03 13:12:21.204140462 +0900
Modify: 2023-02-03 13:12:21.204140462 +0900
Change: 2023-02-03 13:12:21.204140462 +0900
 Birth: 2023-02-03 13:12:21.204140462 +0900
[root@kosmos ~]# find /var/lib/pcp -name Upgrade -exec rm {} \;
[root@kosmos ~]# systemctl restart pmcd
[root@kosmos ~]# stat /etc/pcp/pmcd/pmcd.conf
  File: /etc/pcp/pmcd/pmcd.conf
  Size: 1108            Blocks: 8          IO Block: 4096   regular file
Device: 253,1   Inode: 268473606   Links: 1
Access: (0644/-rw-r--r--)  Uid: (    0/    root)   Gid: (    0/    root)
Context: system_u:object_r:etc_t:s0
Access: 2023-02-03 13:13:51.525140498 +0900
Modify: 2023-02-03 13:12:21.204140462 +0900
Change: 2023-02-03 13:12:21.204140462 +0900
 Birth: 2023-02-03 13:12:21.204140462 +0900
[root@kosmos ~]# ll /etc/pcp/pmcd/pmcd.conf
-rw-r--r--. 1 root root 1108 Feb  3 13:12 /etc/pcp/pmcd/pmcd.conf
[root@kosmos ~]#

Comment 6 errata-xmlrpc 2023-11-07 08:30:40 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 (pcp bug fix and enhancement 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/RHBA-2023:6406