If the systemd ordering is okay, what about how we have with Ceph, where we
place the "ceph-after-pve-cluster.conf" for each service instead of changing the
pve-cluster.service?
See my recent patch regarding this [0].
[0] https://lists.proxmox.com/pipermail/pve-devel/2022-July/053546.html
On 9/5/22 13:58, Stoiko Ivanov wrote:
currently pmxcfs and the running mta (postfix in most cases I assume)
have no ordering between them - resulting in the mta starting before
pmxcfs.
This can be problematic in case of a mail for 'root' being in the
mailq: postfix tries to deliver the mail - pvemailforward tries to
look up the destination address in /etc/pve/user.cfg and gets a
connection refused since pmxcfs is not running yet.
reported via our community-forum:
https://forum.proxmox.com/threads/.108893/
Signed-off-by: Stoiko Ivanov <s.iva...@proxmox.com>
---
sending as RFC, since while thinking about this issue and discussing it
off-list (thx @Fiona!) the following alternative approaches were/are
considered:
* letting pvemailforward.pl exit with an error-code - sadly does not work
as the only difference is that postfix generates a bounce for the mail
and in (the most-common) case of root being the sender that bounce is
also undeliverable, and thus dropped
* the fix through systemd-ordering does work for this case - but seems
not quite fitting (after all pmxcfs and postfix can happily exist w/o
the other - only delivering mail to root does not work) - also
the issue also happens if pmxcfs is not available for other reasons
* an alternative approach would be to retry fetching the information from
pmxcfs a few times (afair postfix' command-timeout is 1000s for this),
e.g. like we do in the installer when looking for the correct ISO.
debian/pve-cluster.service | 1 +
1 file changed, 1 insertion(+)
diff --git a/debian/pve-cluster.service b/debian/pve-cluster.service
index 4327055..fb706be 100644
--- a/debian/pve-cluster.service
+++ b/debian/pve-cluster.service
@@ -5,6 +5,7 @@ Wants=corosync.service
Wants=rrdcached.service
Before=corosync.service
Before=cron.service
+Before=postfix.service exim4.service sendmail.service qmail.service
After=network.target
After=sys-fs-fuse-connections.mount
After=time-sync.target
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