monit error for simple file check?

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monit error for simple file check?

From:	Claus Klein
Subject:	monit error for simple file check?
Date:	Sun, 3 Apr 2005 12:19:23 +0200
User-agent:	KMail/1.7.1
Hi,

with the following configuration I run into problems with monit.
It seems, that the file is only checked at startup?

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# tail 
/etc/monit/monitrc summary

check process ntpd with pidfile /var/run/ntpd.pid
   depends on TestLockFile
   group server
   start program  "/etc/init.d/ntp-server start"
   stop program  "/etc/init.d/ntp-server stop"
   if failed port 123 type udp then restart
   if 5 restarts within 5 cycles then timeout

check file TestLockFile with path /var/cache/SystemTestDone

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# uname -a

Linux www.clausklein.homelinux.net 2.6.8-2-686 #1 Mon Jan 24 03:58:38 EST 2005 
i686 GNU/Linux

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ./monit -c 
/etc/monit/monitrc summary
The monit daemon 4.5 uptime: 10m

System 'www.clausklein.homelinux.net'
  load average                      [0.01] [0.05] [0.07]
  cpu                               1.7%us 0.5%sy 0.3%wa
  memory usage                      199340 kB [38.6%]
  data collected                    Sun Apr  3 11:14:45 2005

Process  'apache      '   running         monitored       at Sun Apr  3 
11:14:50 2005
File     'apache_bin  '   accessible      monitored       at Sun Apr  3 
11:14:50 2005
Device   'homefs      '   Resource limit matched          monitored       at 
Sun Apr  3 11:14:50 2005
Device   'rootfs      '   accessible      monitored       at Sun Apr  3 
11:14:50 2005
Process  'snmpd       '   Execution failed        monitored       at Sun Apr  3 
11:14:50 2005
Process  'pure-ftpd   '   running         monitored       at Sun Apr  3 
11:14:50 2005
Process  'dictd       '   running         monitored       at Sun Apr  3 
11:14:45 2005
Process  'ntpd        '   Execution failed        monitored       at Sun Apr  3 
11:14:45 2005 # depend on 'TestLockFile'   !
Process  'wwwoffled   '   running         monitored       at Sun Apr  3 
11:14:45 2005
File     'wwwoffled_rc'   accessible      monitored       at Sun Apr  3 
11:14:45 2005
Process  'privoxy     '   running         monitored       at Sun Apr  3 
11:14:45 2005
File     'privoxy_bin '   accessible      monitored       at Sun Apr  3 
11:14:45 2005
File     'privoxy_rc  '   accessible      monitored       at Sun Apr  3 
11:14:45 2005
Process  'cron        '   running         monitored       at Sun Apr  3 
11:14:45 2005
File     'cron_rc     '   accessible      monitored       at Sun Apr  3 
11:14:45 2005
Process  'syslogd     '   running         monitored       at Sun Apr  3 
11:14:45 2005
File     'syslogd_file'   accessible      monitored       at Sun Apr  3 
11:14:45 2005
File     'TestLockFile'   accessible      monitored       at Sun Apr  3 
11:10:35 2005 <<<<<<<<<<< only tested ones? # I removed it after monit startup!
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5#   

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ./monit -c 
/etc/monit/monitrc validate
'ntpd' process is not running
'ntpd' trying to restart
'ntpd' start: /etc/init.d/ntp-server
No lockfile found: /var/cache/SystemTestDone
'snmpd' process is not running
'snmpd' trying to restart
'snmpd' start: /etc/init.d/snmpd
Starting network management services: snmptrapd.
'homefs' space usage 94.0% matches resource limit [space usage>90.0%]
'ntpd' failed to start
'snmpd' failed to start
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ./monit -c 
/etc/monit/monitrc summary
The monit daemon 4.5 uptime: 15m

System 'www.clausklein.homelinux.net'
  load average                      [0.35] [0.13] [0.09]
  cpu                               3.9%us 0.9%sy 0.3%wa
  memory usage                      200604 kB [38.8%]
  data collected                    Sun Apr  3 11:18:46 2005

Process  'apache      '   running         monitored       at Sun Apr  3 
11:18:52 2005
File     'apache_bin  '   accessible      monitored       at Sun Apr  3 
11:18:52 2005
Device   'homefs      '   Resource limit matched          monitored       at 
Sun Apr  3 11:18:52 2005
Device   'rootfs      '   accessible      monitored       at Sun Apr  3 
11:18:52 2005
Process  'snmpd       '   Execution failed        monitored       at Sun Apr  3 
11:18:52 2005
Process  'pure-ftpd   '   running         monitored       at Sun Apr  3 
11:18:52 2005
Process  'dictd       '   running         monitored       at Sun Apr  3 
11:18:47 2005
Process  'ntpd        '   Execution failed        monitored       at Sun Apr  3 
11:18:47 2005
Process  'wwwoffled   '   running         monitored       at Sun Apr  3 
11:18:46 2005
File     'wwwoffled_rc'   accessible      monitored       at Sun Apr  3 
11:18:46 2005
Process  'privoxy     '   running         monitored       at Sun Apr  3 
11:18:46 2005
File     'privoxy_bin '   accessible      monitored       at Sun Apr  3 
11:18:47 2005
File     'privoxy_rc  '   accessible      monitored       at Sun Apr  3 
11:18:47 2005
Process  'cron        '   running         monitored       at Sun Apr  3 
11:18:46 2005
File     'cron_rc     '   accessible      monitored       at Sun Apr  3 
11:18:46 2005
Process  'syslogd     '   running         monitored       at Sun Apr  3 
11:18:46 2005
File     'syslogd_file'   accessible      monitored       at Sun Apr  3 
11:18:46 2005
File     'TestLockFile'   accessible      monitored       at Sun Apr  3 
11:10:35 2005 <<<<<<<<<<< This is wrong!
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5#         ls 
-lrta /var/cache/SystemTestDone
ls: /var/cache/SystemTestDone: No such file or directory
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5#   ./monit -c 
/etc/monit/monitrc reload

I added 'every 2 cycle' to the TestLockFile file check block:

check file TestLockFile with path /var/cache/SystemTestDone
   every 2 cycles
   if failed permission 644 then alert

But the status is still wrong too after an reload and I reseve no mail about 
TestLockFile?

Process 'ntpd'
  status                            Execution failed
  monitoring status                 monitored
  data collected                    Sun Apr  3 11:37:33 2005

File 'TestLockFile'
  status                            accessible
  monitoring status                 monitored
  path                              /var/cache/SystemTestDone
  permission                        0                                         # 
it seems true because the file does not exist!
  uid                               0
  gid                               0
  timestamp                         Thu Jan  1 01:00:00 1970     # it seems 
true because the file does not exist!
  size                              0 B
  data collected                    Sun Apr  3 11:37:33 2005

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# date
Sun Apr  3 11:38:16 CEST 2005

Than I tryed this:

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ./monit -c 
/etc/monit/monitrc -t
Control file syntax OK
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ls 
/var/cache/SystemTestDone
ls: /var/cache/SystemTestDone: No such file or directory
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ./monit -c 
/etc/monit/monitrc status | tail -20
  size                              102056 B
  data collected                    Sun Apr  3 12:04:44 2005

Process 'ntpd'
  status                            Execution failed
  monitoring status                 monitored
  data collected                    Sun Apr  3 12:04:44 2005

File 'TestLockFile'
  status                            accessible
  monitoring status                 monitored
  path                              /var/cache/SystemTestDone
  permission                        0
  uid                               0
  gid                               0
  timestamp                         Thu Jan  1 01:00:00 1970
  size                              0 B
  checksum                          (null)(MD5)
  data collected                    Sun Apr  3 12:04:44 2005

address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# !tail
tail -7 /etc/monit/monitrc

check file TestLockFile with path /var/cache/SystemTestDone
   every 2 cycles
   if failed permission 644 then alert
   if failed checksum and
      expect the sum d41d8cd98f00b204e9800998ecf8427e then alert
   if size > 0 B then alert
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# !ls
ls /var/cache/SystemTestDone
ls: /var/cache/SystemTestDone: No such file or directory
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5#      


But when I configure it like this, I can't start monit?


address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# ./monit -c 
/etc/monit/monitrc -t
/etc/monit/monitrc:541: Error: cannot compute a checksum for a file 
/var/cache/SystemTestDone 'root'
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5# tail 
/etc/monit/monitrc

check file TestLockFile with path /var/cache/SystemTestDone
   every 2 cycles
   if failed permission 644 then alert
   if failed checksum and
      expect the sum d41d8cd98f00b204e9800998ecf8427e then alert
   if size != 0 B then alert
   if failed uid root then alert
    # only this seems to work for an empty file?
   if failed checksum then alert
address@hidden:/home/claus/src/buildroot/build_powerpc/monit-4.5#  


What goes wrong?

Claus Klein
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