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ovs-ctl: Allow to set oom-score for ovs daemons.

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Allow to set oom-score with --oom-score argument.
This argument can be set in ovs config file.
In rhel can set OPTIONS in /etc/sysconfig/openvswitch.
In debian can set OVS_CTL_OPTS in /etc/default/openvswitch-switch.

Acked-by: Eli Britstein <elibr@nvidia.com>
Acked-by: Simon Horman <horms@ovn.org>
Signed-off-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
This commit is contained in:
Roi Dayan 2025-01-21 12:41:39 +02:00 committed by Eelco Chaudron
parent ae8dafe6b0
commit ad59bb8514
4 changed files with 14 additions and 0 deletions
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5
Documentation/ref/ovs-ctl.8.rst
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@ -194,6 +194,11 @@ The following options are less important:
place, because, perhaps, OVSDB manager is running on the same host place, because, perhaps, OVSDB manager is running on the same host
as OVS and share similar attack vectors. as OVS and share similar attack vectors.
* ``--oom-score=<score>``
Sets the Linux Out-Of-Memory (OOM) killer score for the OVS daemon
after it's been started.
* ``--ovsdb-server-priority=<niceness>`` or * ``--ovsdb-server-priority=<niceness>`` or
``--ovs-vswitchd-priority=<niceness>`` ``--ovs-vswitchd-priority=<niceness>``

3
NEWS
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@ -2,6 +2,9 @@ Post-v3.5.0
-------------------- --------------------
- DPDK: - DPDK:
* New debug appctl command 'dpdk/get-memzone-stats'. * New debug appctl command 'dpdk/get-memzone-stats'.
- ovs-ctl:
* Added a new option, --oom-score=<score>, to set the daemons' Linux
Out-Of-Memory (OOM) killer score.
v3.5.0 - xx xxx xxxx v3.5.0 - xx xxx xxxx

2
utilities/ovs-ctl.in
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@ -356,6 +356,7 @@ set_defaults () {
OVS_MONITOR_IPSEC_OPTIONS= OVS_MONITOR_IPSEC_OPTIONS=
OVSDB_SERVER_UMASK= OVSDB_SERVER_UMASK=
OVS_VSWITCHD_UMASK= OVS_VSWITCHD_UMASK=
OOM_SCORE=
DB_FILE=$dbdir/conf.db DB_FILE=$dbdir/conf.db
DB_SOCK=$rundir/db.sock DB_SOCK=$rundir/db.sock
@ -448,6 +449,7 @@ Less important options for "start", "restart" and "force-reload-kmod":
--no-full-hostname set short hostname instead of full hostname --no-full-hostname set short hostname instead of full hostname
--no-record-hostname do not attempt to determine/record system --no-record-hostname do not attempt to determine/record system
hostname as part of start command hostname as part of start command
--oom-score=SCORE Set oom-score after starting ovs daemon.
Debugging options for "start", "restart" and "force-reload-kmod": Debugging options for "start", "restart" and "force-reload-kmod":
--ovsdb-server-wrapper=WRAPPER --ovsdb-server-wrapper=WRAPPER

4
utilities/ovs-lib.in
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@ -236,6 +236,10 @@ start_daemon () {
umask "$previuos_umask_value" umask "$previuos_umask_value"
fi fi
if test X"$OOM_SCORE" != X; then
echo "$OOM_SCORE" > /proc/`cat $rundir/$daemon.pid`/oom_score_adj 2>/dev/null
fi
if test X"$strace" != X; then if test X"$strace" != X; then
# Strace doesn't have the -D option so we attach after the fact. # Strace doesn't have the -D option so we attach after the fact.
setsid $strace -o "$logdir/$daemon.strace.log" \ setsid $strace -o "$logdir/$daemon.strace.log" \