Ubuntu
lxd package

LimitNOFILE and LimitNPROC not being observed

Bug #1521980 reported by James Page on 2015-12-02

6

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	lxd (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

The lxd systemd service file sets:

LimitNOFILE=-1
LimitNPROC=-1

However, on a Xenial install, I still see the standard limits being set of 1024 and 4096 on the LXD process; this causes a juju bootstrap using the new LXD provider in 1.26alpha2 to fail, as the MongoDB instance it runs tries to hike the file and process limits up and can't.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: lxd 0.23-0ubuntu2 [modified: lib/systemd/system/lxd.service]
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.2-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Dec 2 11:33:54 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-11-25 (371 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20141124)
SourcePackage: lxd
UpgradeStatus: Upgraded to xenial on 2015-11-02 (30 days ago)

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Revision history for this message

James Page (james-page) wrote on 2015-12-02:

#1

Dependencies.txt Edit (5.6 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (88.9 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (319 bytes, text/plain; charset="utf-8")

Revision history for this message

Stéphane Graber (stgraber) wrote on 2015-12-02:

#2

Hi James,

Instead of -1, can you set the string "infinity" and see if that does the trick (you'll need to stop all lxd units, do a daemon reload and then start them again).

Revision history for this message

Stéphane Graber (stgraber) wrote on 2015-12-02:

#3

root@castiana:~# cat /proc/2054/limits | egrep "Max proces|Max open"
Max processes unlimited unlimited processes
Max open files 65536 65536 files

Does appear to do the trick here, adding this to the packaging branch.

Changed in lxd (Ubuntu):
status:	New → Fix Committed

Revision history for this message

Stéphane Graber (stgraber) wrote on 2015-12-02:

#4

Uploaded

Revision history for this message

Launchpad Janitor (janitor) wrote on 2015-12-02:

#5

This bug was fixed in the package lxd - 0.23-0ubuntu3

---------------
lxd (0.23-0ubuntu3) xenial; urgency=medium

* Fix systemd resource limits. (LP: #1521980)

-- Stéphane Graber <email address hidden> Wed, 02 Dec 2015 12:34:14 -0500

Changed in lxd (Ubuntu):
status:	Fix Committed → Fix Released

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