This host will be replaced in Q2.
As usual with HP hosts, they tend to get their BBU broken after a few years and once it fails, the host reboots itself:
/system1/log1/record15 Targets Properties number=15 severity=Caution date=07/06/2020 time=13:45 description=POST Error: 313-HPE Smart Storage Battery 1 Failure - Battery Shutdown Event Code: 0x0400. Action: Restart system. Contact HPE support if condition persists. Verbs cd version exit show /system1/log1/record14 Targets Properties number=14 severity=Critical date=07/06/2020 time=13:44 description=ASR Detected by System ROM Verbs cd version exit show </system1/log1>hpiLO-> show record13 status=0 status_tag=COMMAND COMPLETED Mon Jul 6 14:02:39 2020 /system1/log1/record13 Targets Properties number=13 severity=Caution date=07/06/2020 time=13:25 description=Smart Storage Battery failure (Battery 1, service information: 0x0A). Action: Gather AHS log and contact Support Verbs
[13:52:22] <+icinga-wm> PROBLEM - mysqld processes #page on db1079 is CRITICAL: PROCS CRITICAL: 0 processes with command name mysqld https://wikitech.wikimedia.org/wiki/MariaDB/troubleshooting