Ubuntu Manpage: watchdog.conf - configuration file for the watchdog daemon

NAME

       watchdog.conf - configuration file for the watchdog daemon

DESCRIPTION

       This  file  carries  all configuration options for the Linux watchdog daemon.  Each option
       has to be written on a line for itself. Comments  start  with  '#'.   Blanks  are  ignored
       except  after  the '=' sign. An empty text after the '=' sign disables the feature as long
       as that makes sense.

OPTIONS

interval = <interval>
Set the interval between two writes to the watchdog device. The kernel drivers
expects a write command every minute. Otherwise the system will be rebooted.
Default value is 1 second. An interval of more than a minute can only be used with
the -f command-line option.

logtick = <logtick>
If you enable verbose logging, a message is written into the syslog or a logfile.
While this is nice, it is not necessary to get a message every 10 seconds which
really fills up disk and needs CPU. logtick allows adjustment of the number of
intervals skipped before a log message is written. If you use logtick = 60 and
interval = 10, only every 10 minutes (600 seconds) a message is written. This may
make the exact time of a crash harder to find but greatly reduces disk usage and
administrator nerves if you're looking for a particular syslog entry in between of
watchdog messages.

max-load-1 = <load1>
Set the maximal allowed load average for a 1 minute span. Once this load average is
reached the system is rebooted. Default value is 0. That means the load average
check is disabled. Be careful not to this parameter too low. To set a value less
then the predefined minimal value of 2, you have to use the -f commandline option.

max-load-5 = <load5>
Set the maximal allowed load average for a 5 minute span. Once this load average is
reached the system is rebooted. Default value is 3/4*max-load-1. Be careful not to
this parameter too low. To set a value less then the predefined minimal value of 2,
you have to use the -f commandline option.

max-load-15 = <load15>
Set the maximal allowed load average for a 15 minute span. Once this load average
is reached the system is rebooted. Default value is 1/2*max-load-1. Be careful not
to this parameter too low. To set a value less then the predefined minimal value of
2, you have to use the -f commandline option.

min-memory = <minpage>
Set the minimal amount of virtual memory that has to stay free. Note that this is
in pages. Default value is 0 pages which means this test is disabled. The page size
is taken from the system include files.

max-temperature = <temp>
Set the maximal allowed temperature. Once this temperature is reached the system is
halted. Default value is 120. There is no unit conversion, so make sure you use the
same unit as your hardware. Watchdog will issue warnings once the temperature
increases 90%, 95% and 98% of this temperature.

watchdog-device = <device>
Set the watchdog device name. Default is to disable keep alive support.

watchdog-timeout = <timeout>
Set the watchdog device timeout during startup. If not set, the default is driver-
dependent.

temperature-device = <temp-dev>
Set the temperature device name. Default is to disable temperature checking.

file = <filename>
Set file name for file mode. This option can be given as often as you like to
check several files.

change = <mtime>
Set the change interval time for file mode. This options always belongs to the
active filename, that is when finding a 'change =' line watchdog assumes it belongs
to the most recently read 'file =' line. They don't neccessarily have to follow
each other directly. But you cannot specify a 'change =' before a 'file ='. The
default is to only stat the file and don't look for changes. Using this feature to
monitor changes in /var/log/messages might require some special syslog daemon
configuration, e.g. rsyslog needs "$ActionWriteAllMarkMessages on" to be set to
make sure the marks are written no matter what.

pidfile = <pidfilename>
Set pidfile name for server test mode. This option can be given as often as you
like to check several servers.

ping = <ip-addr>
Set IP address for ping mode. This option can be used more than once to check
different connections.

interface = <if-name>
Set interface name for network mode. This option can be used more than once to
check different interfaces.

test-binary = <testbin>
Execute the given binary to do some user defined tests.

test-timeout = <timeout in seconds>
User defined tests may only run for <timeout> seconds. Set to 0 for unlimited.

repair-binary = <repbin>
Execute the given binary in case of a problem instead of shutting down the system.

repair-timeout = <timeout in seconds>
repair command may only run for <timeout> seconds. Set to 0 for unlimited.

admin = <mail-address>
Email address to send admin mail to. That is, who shall be notified that the
machine is being halted or rebooted. Default is 'root'. If you want to disable
notification via email just set admin to en empty string.

realtime = <yes|no>
If set to yes watchdog will lock itself into memory so it is never swapped out.

priority = <schedule priority>
Set the schedule priority for realtime mode.

test-directory = <test directory>
Set the directory to run user test/repair scripts. Default is '/etc/watchdog.d'
See the Test Directory section in watchdog(8) for more information.

log-dir = <log directory>
Set the log directory to capture the standard output and standard error from
repair-binary and test-binary execution. Default is '/var/log/watchdog'.

FILES

       /etc/watchdog.conf
              The watchdog configuration file

       /etc/watchdog.d
              A directory containing test-or-repair commands. See the Test Directory  section  in
              watchdog(8) for more information.

NAME

DESCRIPTION

OPTIONS

FILES

SEE ALSO