Bug 1585913

Summary:	systemd backport fix for nofile improvements in containerized environments
Product:	Red Hat Enterprise Linux 7	Reporter:	GeorgeL <eva2000>
Component:	systemd	Assignee:	David Tardon <dtardon>
Status:	CLOSED ERRATA	QA Contact:	Frantisek Sumsal <fsumsal>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.5	CC:	dtardon, ovasik, systemd-maint-list
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:	systemd-219-64.el7	Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2019-08-06 12:43:29 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:

Description GeorgeL 2018-06-05 05:41:11 UTC

Description of problem:

CentOS 7.5 systemd 219 within a lxd container doesn't properly set nofile open file limits. According to the below links, this was fixed in systemd 229+

https://github.com/systemd/systemd/pull/5795
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1686361

I can confirm it's fixed if i manually update centos 7.5 lxd guest containers systemd version to 234 https://discuss.linuxcontainers.org/t/ulimit-nofiles-in-centos-7-5-containers-a-systemd-bug/1953

Would be great if upstream Redhat 7.x systemd backported such a fix so native CentOS 7.5 guest lxd containers would properly set nofile.

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

systemd 219


Steps to Reproduce:
1. launch a lxd guest container with centos 7.5 
2. try raising nofile limit for a service and check prlimit -p PID of process - it's fixed to 65536 in systemd 219 but properly changes if updated to systemd 234


Actual results:

try raising nofile limit for a service and check prlimit -p PID of process - it's fixed to 65536 in systemd 219

Expected results:

that raising a centos 7.5 service's nofile limit should be reflected when checking service process PID limits

Comment 4 Lukáš Nykrýn 2019-02-15 09:17:21 UTC

fix merged to staging branch -> https://github.com/lnykryn/systemd-rhel/pull/290 -> post

Comment 8 errata-xmlrpc 2019-08-06 12:43:29 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://access.redhat.com/errata/RHSA-2019:2091