45 lines
1.9 KiB
Diff
45 lines
1.9 KiB
Diff
From 9d3df5696ed6b04b379a2fe643eec1fcd5a4b10d Mon Sep 17 00:00:00 2001
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From: Jan Friesse <jfriesse@redhat.com>
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Date: Tue, 18 May 2021 10:43:37 +0200
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Subject: [PATCH 5/7] man: Add info about cgroup v2 behavior
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Signed-off-by: Jan Friesse <jfriesse@redhat.com>
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Reviewed-by: Christine Caulfield <ccaulfie@redhat.com>
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---
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man/corosync.conf.5 | 12 +++++++++++-
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1 file changed, 11 insertions(+), 1 deletion(-)
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diff --git a/man/corosync.conf.5 b/man/corosync.conf.5
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index 1c9d2ad7..90a2babc 100644
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--- a/man/corosync.conf.5
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+++ b/man/corosync.conf.5
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@@ -32,7 +32,7 @@
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.\" * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" * THE POSSIBILITY OF SUCH DAMAGE.
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.\" */
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-.TH COROSYNC_CONF 5 2021-05-03 "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
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+.TH COROSYNC_CONF 5 2021-05-18 "corosync Man Page" "Corosync Cluster Engine Programmer's Manual"
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.SH NAME
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corosync.conf - corosync executive configuration file
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@@ -809,6 +809,16 @@ enabled when all RT processes are in the root cgroup. So when move_to_root_cgrou
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is disabled and systemd is used, it may be impossible to make systemd options
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like CPUQuota working correctly until corosync is stopped.
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+Also when this option is used together with cgroup2 and systemd
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+it makes impossible (most of the time) for journald to add systemd specific
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+metadata (most importantly _SYSTEMD_UNIT) properly, because corosync is
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+moved out of cgroup created by systemd. This means
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+it is not possible to filter corosync logged messages based on these metadata
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+(for example using -u or _SYSTEMD_UNIT=UNIT pattern) and also running
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+systemctl status doesn't display (all) corosync log messages.
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+The problem is even worse because journald caches pid for some time
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+(approx. 5 sec) so initial corosync messages have correct metadata.
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+
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.TP
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allow_knet_handle_fallback
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If knet handle creation fails using privileged operations, allow fallback to
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--
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2.27.0
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