Bug 1220904

Summary:	accountsservice usability issue with 58000 users/1200 groups
Product:	Red Hat Enterprise Linux 7	Reporter:	Joe Wright <jwright>
Component:	accountsservice	Assignee:	Ray Strode [halfline] <rstrode>
Status:	CLOSED ERRATA	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	high	Docs Contact:
Priority:	high
Version:	7.1	CC:	ayadav, jaeshin, jsbillin, mclasen, modehnal, tpelka
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	accountsservice-0.6.35-10.el7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-11-04 07:51:30 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:	1203710, 1297830, 1313485

Description Joe Wright 2015-05-12 19:02:54 UTC

Created attachment 1024721 [details]
sosreport

Description of problem:
- 58000 entries in /etc/passwd and over 1200 in /etc/group.
The account-daemon, gnome-shell, and gnome-initial-setup process are all consuming large amounts of CPU and memory as they try to load all of those entries.  In addition, it appears that they're trying to iterate over all of the home directories looking for .face files.

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


How reproducible:
- 100%

Steps to Reproduce:
1. build a machine with 58000 user accounts that authenticate to active directory
2. attempt to boot machine to the GUI
3.

Actual results:
- account-daemon, gnome-shell and gnome-initial-setup consume the CPU

Expected results:
- no issues

Additional info:
- sosreport attached
- nsswitch.conf configuration issue has been corrected by no longer calling sssd
From:

passwd:     files sss
shadow:     files sss
group:      files sss
services:   files sss
netgroup:   files sss

To: 

passwd:     files 
shadow:     files 
group:      files 
services:   files 
netgroup:   files

Upstream bugs:
https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/941673
https://utcc.utoronto.ca/~cks/space/blog/linux/UbuntuAccountsServiceProblems

Comment 4 Ray Strode [halfline] 2016-06-30 19:54:48 UTC

I did a few changes here that should make it perform much better in a variety of large user deployments.

Comment 7 Michal Odehnal 2016-09-08 07:24:28 UTC

Unable to reproduce with accountsservice-0.6.35-12.el7.x86_64

Comment 8 Ray Strode [halfline] 2016-10-21 14:48:43 UTC

*** Bug 1302349 has been marked as a duplicate of this bug. ***

Comment 10 errata-xmlrpc 2016-11-04 07:51:30 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, 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://rhn.redhat.com/errata/RHBA-2016-2522.html