1WATCHDOG.CONF(5) File Formats Manual WATCHDOG.CONF(5)
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6 watchdog.conf - configuration file for the watchdog daemon
7
9 This file carries all configuration options for the Linux watchdog dae‐
10 mon. Each option has to be written on a line for itself. Comments
11 start with '#'. Blanks are ignored except after the '=' sign. An empty
12 text after the '=' sign disables the feature as long as that makes
13 sense.
14
16 interval = <interval>
17 Set the interval between two writes to the watchdog device. The
18 kernel drivers expects a write command every minute. Otherwise
19 the system will be rebooted. Default value is 1 second. An
20 interval of more than a minute can only be used with the -f com‐
21 mand-line option.
22 logtick = <logtick>
24 If you enable verbose logging, a message is written into the
25 syslog or a logfile. While this is nice, it is not necessary to
26 get a message every 10 seconds which really fills up disk and
27 needs CPU. logtick allows adjustment of the number of intervals
28 skipped before a log message is written. If you use logtick = 60
29 and interval = 10, only every 10 minutes (600 seconds) a message
30 is written. This may make the exact time of a crash harder to
31 find but greatly reduces disk usage and administrator nerves if
32 you're looking for a particular syslog entry in between of
33 watchdog messages.
34 max-load-1 = <load1>
36 Set the maximal allowed load average for a 1 minute span. Once
37 this load average is reached the system is rebooted. Default
38 value is 0. That means the load average check is disabled. Be
39 careful not to this parameter too low. To set a value less then
40 the predefined minimal value of 2, you have to use the -f com‐
41 mandline option.
42 max-load-5 = <load5>
44 Set the maximal allowed load average for a 5 minute span. Once
45 this load average is reached the system is rebooted. Default
46 value is 3/4*max-load-1. Be careful not to this parameter too
47 low. To set a value less then the predefined minimal value of 2,
48 you have to use the -f commandline option.
49 max-load-15 = <load15>
51 Set the maximal allowed load average for a 15 minute span. Once
52 this load average is reached the system is rebooted. Default
53 value is 1/2*max-load-1. Be careful not to this parameter too
54 low. To set a value less then the predefined minimal value of 2,
55 you have to use the -f commandline option.
56 min-memory = <minpage>
58 Set the minimal amount of virtual memory that has to stay free.
59 Note that this is in pages. Default value is 0 pages which means
60 this test is disabled. The page size is taken from the system
61 include files.
62 max-temperature = <temp>
64 Set the maximal allowed temperature. Once this temperature is
65 reached the system is halted. Default value is 120. There is no
66 unit conversion, so make sure you use the same unit as your
67 hardware. Watchdog will issue warnings once the temperature
68 increases 90%, 95% and 98% of this temperature.
69 watchdog-device = <device>
71 Set the watchdog device name. Default is to disable keep alive
72 support.
73 watchdog-timeout = <timeout>
75 Set the watchdog device timeout during startup. If not set, the
76 default is driver-dependent.
77 temperature-device = <temp-dev>
79 Set the temperature device name. Default is to disable tempera‐
80 ture checking.
81 file = <filename>
83 Set file name for file mode. This option can be given as often
84 as you like to check several files.
85 change = <mtime>
87 Set the change interval time for file mode. This options always
88 belongs to the active filename, that is when finding a 'change
89 =' line watchdog assumes it belongs to the most recently read
90 'file =' line. They don't neccessarily have to follow each
91 other directly. But you cannot specify a 'change =' before a
92 'file ='. The default is to only stat the file and don't look
93 for changes. Using this feature to monitor changes in
94 /var/log/messages might require some special syslog daemon con‐
95 figuration, e.g. rsyslog needs "$ActionWriteAllMarkMessages on"
96 to be set to make sure the marks are written no matter what.
97 pidfile = <pidfilename>
99 Set pidfile name for server test mode. This option can be given
100 as often as you like to check several servers. See the Systemd
101 section in watchdog (8) for more information.
102 ping = <ip-addr>
104 Set IP address for ping mode. This option can be used more than
105 once to check different connections.
106 interface = <if-name>
108 Set interface name for network mode. This option can be used
109 more than once to check different interfaces.
110 test-binary = <testbin>
112 Execute the given binary to do some user defined tests. With
113 enforcing SELinux policy please use the /usr/libexec/watch‐
114 dog/scripts/ for your test-binary configuration.
115 test-timeout = <timeout in seconds>
117 User defined tests may only run for <timeout> seconds. Set to 0
118 for unlimited.
119 repair-binary = <repbin>
121 Execute the given binary in case of a problem instead of shut‐
122 ting down the system. With enforcing SELinux policy please use
123 the /usr/libexec/watchdog/scripts/ for your repair-binary con‐
124 figuration.
125 repair-timeout = <timeout in seconds>
127 repair command may only run for <timeout> seconds. Set to 0 for
128 unlimited.
129 admin = <mail-address>
131 Email address to send admin mail to. That is, who shall be noti‐
132 fied that the machine is being halted or rebooted. Default is
133 'root'. If you want to disable notification via email just set
134 admin to en empty string.
135 realtime = <yes|no>
137 If set to yes watchdog will lock itself into memory so it is
138 never swapped out.
139 priority = <schedule priority>
141 Set the schedule priority for realtime mode.
142 test-directory = <test directory>
144 Set the directory to run user test/repair scripts. Default is
145 '/etc/watchdog.d' The /etc/watchdog.d/ is recognized by SELinux
146 policy. See the Test Directory section in watchdog(8) for more
147 information.
148 log-dir = <log directory>
150 Set the log directory to capture the standard output and stan‐
151 dard error from repair-binary and test-binary execution. Default
152 is '/var/log/watchdog'.
153
155 /etc/watchdog.conf
156 The watchdog configuration file
157 /etc/watchdog.d
159 A directory containing test-or-repair commands. See the Test
160 Directory section in watchdog(8) for more information.
161
163 watchdog(8)
1644th Berkeley Distribution January 2005 WATCHDOG.CONF(5)