mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-08-28 11:31:16 +00:00
This fixes
commit 38abf9c34d
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Wed Jun 21 13:22:40 2023 +0100
src: set max open file limit to match systemd >= 240 defaults
The bug referenced in that commit had suggested to set
LimitNOFile=512000:1024
on the basis that matches current systemd default behaviour and is
compatible with old systemd. That was good except
* The setting is LimitNOFILE and these are case sensitive
* The hard and soft limits were inverted - soft must come
first and so it would have been ignored even if the
setting name was correct.
* The default hard limit is 524288 not 512000
Reported-by: Olaf Hering <olaf@aepfle.de>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
45 lines
1.4 KiB
SYSTEMD
45 lines
1.4 KiB
SYSTEMD
[Unit]
|
|
Description=Virtualization Cloud-Hypervisor daemon
|
|
Conflicts=libvirtd.service
|
|
Requires=virtchd.socket
|
|
Requires=virtchd-ro.socket
|
|
Requires=virtchd-admin.socket
|
|
Wants=systemd-machined.service
|
|
After=network.target
|
|
After=dbus.service
|
|
After=apparmor.service
|
|
After=remote-fs.target
|
|
After=systemd-machined.service
|
|
Documentation=man:virtchd(8)
|
|
Documentation=https://libvirt.org
|
|
|
|
[Service]
|
|
Type=notify
|
|
Environment=VIRTCHD_ARGS="--timeout 120"
|
|
EnvironmentFile=-@initconfdir@/virtchd
|
|
ExecStart=@sbindir@/virtchd $VIRTCHD_ARGS
|
|
ExecReload=/bin/kill -HUP $MAINPID
|
|
KillMode=process
|
|
Restart=on-failure
|
|
# Raise hard limits to match behaviour of systemd >= 240.
|
|
# During startup, daemon will set soft limit to match hard limit
|
|
# per systemd recommendations
|
|
LimitNOFILE=1024:524288
|
|
# The cgroups pids controller can limit the number of tasks started by
|
|
# the daemon, which can limit the number of domains for some hypervisors.
|
|
# A conservative default of 8 tasks per guest results in a TasksMax of
|
|
# 32k to support 4096 guests.
|
|
TasksMax=32768
|
|
# With cgroups v2 there is no devices controller anymore, we have to use
|
|
# eBPF to control access to devices. In order to do that we create a eBPF
|
|
# hash MAP which locks memory. The default map size for 64 devices together
|
|
# with program takes 12k per guest. After rounding up we will get 64M to
|
|
# support 4096 guests.
|
|
LimitMEMLOCK=64M
|
|
|
|
[Install]
|
|
WantedBy=multi-user.target
|
|
Also=virtchd.socket
|
|
Also=virtchd-ro.socket
|
|
Also=virtchd-admin.socket
|