[mconcas]

The o2-alf exclusion compares the output of ps -ho %c <pid> with the literal string o2-alf. On RHEL 10 that command pads the name to 15 columns, so the comparison never matches and the cleanup SIGTERMs ALF before every DEPLOY. systemd treats SIGTERM as a clean exit and Restart=on-failure leaves the service down. EL9 prints the bare name, which is why production was not affected.

Read /proc/<pid>/comm directly: same kernel field, no dependency from ps invocation and params combination.

On rhel9:

[flp-node-rhel9]$ p=$(pgrep -u flp -f /opt/o2/bin/o2-alf)
ps -o comm= $p | od -c
LANG=C ps -ho %c $p | od -c
0000000   o   2   -   a   l   f  \n
0000007
0000000   o   2   -   a   l   f  \n
0000007

On rhel10:

[flp-node-rhel10]# p=$(pgrep -u flp -f /opt/o2/bin/o2-alf)
ps -o comm= $p | od -c
LANG=C ps -ho %c $p | od -c
0000000   o   2   -   a   l   f  \n
0000007
0000000   o   2   -   a   l   f                                      \n
0000020