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  highest  possible  interval  between  two  writes to the watchdog device.  The device is
              triggered after each check regardless of the time it took. After  finishing  all  checks  watchdog
              goes  to  sleep  for  a  full  cycle  of <interval> seconds. Default value is 1 second. The kernel
              drivers expects a write command every minute. Otherwise the system will be rebooted.  Therefore 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.

       allocatable-memory = <minpage>
              Set the minimum amount of allocatable memory available on the system.  Note that this is in pages.
              Default  value  is 0 pages which means the test is disabled.  As with min-memory, 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, a default is used that should be set
              to the kernel timer margin at compile time.

       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.

SEE ALSO

       watchdog(8)