21d0dd5a89
As discussed on systemd-devel [1], in Fedora we get lots of abrt reports about the watchdog firing [2], but 100% of them seem to be caused by resource starvation in the machine, and never actual deadlocks in the services being monitored. Killing the services not only does not improve anything, but it makes the resource starvation worse, because the service needs cycles to restart, and coredump processing is also fairly expensive. This adds a configuration option to allow the value to be changed. If the setting is not set, there is no change. My plan is to set it to some ridiculusly high value, maybe 1h, to catch cases where a service is actually hanging. [1] https://lists.freedesktop.org/archives/systemd-devel/2019-October/043618.html [2] https://bugzilla.redhat.com/show_bug.cgi?id=1300212
45 lines
1.5 KiB
SYSTEMD
45 lines
1.5 KiB
SYSTEMD
# SPDX-License-Identifier: LGPL-2.1+
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#
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# This file is part of systemd.
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#
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# systemd is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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[Unit]
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Description=Journal Service
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Documentation=man:systemd-journald.service(8) man:journald.conf(5)
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DefaultDependencies=no
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Requires=systemd-journald.socket
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After=systemd-journald.socket systemd-journald-dev-log.socket systemd-journald-audit.socket syslog.socket
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Before=sysinit.target
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[Service]
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OOMScoreAdjust=-250
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CapabilityBoundingSet=CAP_SYS_ADMIN CAP_DAC_OVERRIDE CAP_SYS_PTRACE CAP_SYSLOG CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_CHOWN CAP_DAC_READ_SEARCH CAP_FOWNER CAP_SETUID CAP_SETGID CAP_MAC_OVERRIDE
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DeviceAllow=char-* rw
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ExecStart=@rootlibexecdir@/systemd-journald
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FileDescriptorStoreMax=4224
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IPAddressDeny=any
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LockPersonality=yes
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MemoryDenyWriteExecute=yes
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NoNewPrivileges=yes
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Restart=always
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RestartSec=0
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RestrictAddressFamilies=AF_UNIX AF_NETLINK
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RestrictNamespaces=yes
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RestrictRealtime=yes
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RestrictSUIDSGID=yes
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Sockets=systemd-journald.socket systemd-journald-dev-log.socket systemd-journald-audit.socket
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StandardOutput=null
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SystemCallArchitectures=native
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SystemCallErrorNumber=EPERM
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SystemCallFilter=@system-service
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Type=notify
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@SERVICE_WATCHDOG@
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# If there are many split up journal files we need a lot of fds to access them
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# all in parallel.
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LimitNOFILE=@HIGH_RLIMIT_NOFILE@
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