Re: Newbie program check isn't returning any status at all?

[Martin Pala]

Thanks for data. The settings is OK, the problem is caused by the missing interpreter on the beginning of the script ("#!/bin/bash" for example), it should include look like this:

--8<--

#!/bin/bash

curl https://myfavoriteapp.com --location --silent --output /dev/null --write-out "%{http_code}\n" | grep "[2].."

exit $?

--8<--

If the interpreter is missing, monit will log the following error in verbose mode:

--8<--

'test' failed to execute '/tmp/test.sh' -- Exec format error

--8<--

I have updated the manual - added script example and described the requirements: http://www.mmonit.com/monit/documentation/monit.html#program_status_testing

Regards,

Martin

On May 7, 2012, at 4:41 AM, Grant Rettke wrote:

Hi Martin,

On Sun, May 6, 2012 at 12:42 PM, Martin Pala <address@hidden> wrote:

please can you run monit in verbose mode (-v option) and provide the output

and also output of "ls -l /usr/local/bin/appcheck.sh"?

Glad to thanks!

address@hidden:/root>date
Sun May  6 21:38:03 CDT 2012
address@hidden:/root>ls -l /usr/local/bin/appcheck.sh
ls: invalid option --
Try `ls --help' for more information.
address@hidden:/root>
address@hidden:/root>date
Sun May  6 21:38:31 CDT 2012
address@hidden:/root>ls -l /usr/local/bin/appcheck.sh
-rwxr-xr-x 1 root root 915 May  4 18:05 /usr/local/bin/appcheck.sh
address@hidden:/root>monit -v
monit: Debug: Adding host allow 'localhost'
monit: Debug: Skipping redundant host 'localhost'
monit: Debug: Skipping redundant host 'localhost'
monit: Debug: Adding credentials for user 'mycomp'.
Runtime constants:
Control file       = /etc/monitrc
Log file           = /var/log/monit.log
Pid file           = /var/run/monit.pid
Debug              = True
Log                = True
Use syslog         = False
Is Daemon          = True
Use process engine = True
Poll time          = 120 seconds with start delay 0 seconds
Expect buffer      = 256 bytes
Event queue        = base directory /var/monit/queue with 5000 slots
Mail server(s)     = smtp.gmail.com:465(ssl) with timeout 30 seconds
Mail from          = (not defined)
Mail subject       = (not defined)
Mail message       = (not defined)
Start monit httpd  = True
httpd bind address = localhost
httpd portnumber   = 2812
httpd signature    = True
Use ssl encryption = False
httpd auth. style  = Basic Authentication and Host/Net allow list
Alert mail to      = address@hidden
  Alert on         = All events
Alert mail to      = address@hidden
  Alert on         = All events
Alert mail to      = address@hidden
  Alert on         = All events

The service list contains the following entries:

System Name           = localhost
Monitoring mode      = active
CPU system limit     = if greater than 80.0% 3 times within 3
cycle(s) then alert else if succeeded 1 times within 1 cycle(s) then
alert
CPU user limit       = if greater than 80.0% 3 times within 3
cycle(s) then alert else if succeeded 1 times within 1 cycle(s) then
alert
Memory usage limit   = if greater than 85.0% 1 times within 1
cycle(s) then alert else if succeeded 1 times within 1 cycle(s) then
alert

Filesystem Name       = rootfs
Path                 = /
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Filesystem flags     = if changed 1 times within 1 cycle(s) then alert
Space usage limit    = if greater than 80.0% 1 times within 1
cycle(s) then alert else if succeeded 1 times within 1 cycle(s) then
alert

Process Name          = sshd
Pid file             = /var/run/sshd.pid
Monitoring mode      = active
Start program        = '/etc/init.d/sshd start' timeout 30 second(s)
Stop program         = '/etc/init.d/sshd stop' timeout 30 second(s)
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Pid                  = if changed 1 times within 1 cycle(s) then alert
Ppid                 = if changed 1 times within 1 cycle(s) then alert
Port                 = if failed [localhost:22 [SSH via TCP] with
timeout 5 seconds and retry 0 time(s)] 1 times within 1 cycle(s) then
restart else if succeeded 1 times within 1 cycle(s) then alert
Timeout              = If restarted 5 times within 5 cycle(s) then unmonitor

Process Name          = mysql
Group                = myapp
Pid file             = /var/run/mysqld/mysqld.pid
Monitoring mode      = active
Start program        = '/etc/init.d/mysqld start' timeout 30 second(s)
Stop program         = '/etc/init.d/mysqld stop' timeout 30 second(s)
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Pid                  = if changed 1 times within 1 cycle(s) then alert
Ppid                 = if changed 1 times within 1 cycle(s) then alert
Port                 = if failed [127.0.0.1:3306 [MYSQL via TCP] with
timeout 5 seconds and retry 0 time(s)] 1 times within 1 cycle(s) then
restart else if succeeded 1 times within 1 cycle(s) then alert
Timeout              = If restarted 5 times within 5 cycle(s) then unmonitor

Process Name          = tomcat
Group                = myapp
Pid file             = /var/run/tomcat.pid
Monitoring mode      = active
Start program        = '/etc/init.d/tomcat start' timeout 30 second(s)
Stop program         = '/etc/init.d/tomcat stop' timeout 30 second(s)
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Depends on Service   = mysql
Pid                  = if changed 1 times within 1 cycle(s) then alert
Ppid                 = if changed 1 times within 1 cycle(s) then alert
Port                 = if failed [localhost:8080 [DEFAULT via TCP]
with timeout 5 seconds and retry 0 time(s)] 5 times within 5 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Port                 = if failed [localhost:8080 [DEFAULT via TCP]
with timeout 5 seconds and retry 0 time(s)] 1 times within 1 cycle(s)
then alert else if succeeded 1 times within 1 cycle(s) then alert

File Name             = mysqld.log
Path                 = /var/log/mysqld.log
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Size                 = if greater than 5242900 byte(s) 1 times within
1 cycle(s) then exec '/usr/sbin/logrotate /etc/logrotate.conf' timeout
0 cycle(s) else if succeeded 1 times within 1 cycle(s) then alert

File Name             = catalina.out
Path                 = /usr/share/apache-tomcat-6.0.32/logs/catalina.out
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Size                 = if greater than 5242900 byte(s) 1 times within
1 cycle(s) then exec '/usr/sbin/logrotate /etc/logrotate.conf' timeout
0 cycle(s) else if succeeded 1 times within 1 cycle(s) then alert

File Name             = monit.log
Path                 = /var/log/monit.log
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Size                 = if greater than 5242900 byte(s) 1 times within
1 cycle(s) then exec '/usr/sbin/logrotate /etc/logrotate.conf' timeout
0 cycle(s) else if succeeded 1 times within 1 cycle(s) then alert

Remote Host Name      = MYPROD-PROD-ICMP-PING
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then unmonitor else if succeeded 1 times within 1 cycle(s) then alert
ICMP                 = if failed [Echo Request count 5 with timeout
15 seconds] 1 times within 1 cycle(s) then alert else if succeeded 1
times within 1 cycle(s) then alert

Remote Host Name      = MYPROD-STAGING-ICMP-PING
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then unmonitor else if succeeded 1 times within 1 cycle(s) then alert
ICMP                 = if failed [Echo Request count 5 with timeout
15 seconds] 1 times within 1 cycle(s) then alert else if succeeded 1
times within 1 cycle(s) then alert

Remote Host Name      = MYPROD-QA-ICMP-PING
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then unmonitor else if succeeded 1 times within 1 cycle(s) then alert
ICMP                 = if failed [Echo Request count 5 with timeout
15 seconds] 1 times within 1 cycle(s) then alert else if succeeded 1
times within 1 cycle(s) then alert

Remote Host Name      = MYPROD-DEMO-ICMP-PING
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then unmonitor else if succeeded 1 times within 1 cycle(s) then alert
ICMP                 = if failed [Echo Request count 5 with timeout
15 seconds] 1 times within 1 cycle(s) then alert else if succeeded 1
times within 1 cycle(s) then alert

Remote Host Name      = MYPROD-CONFERENCE-ICMP-PING
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then unmonitor else if succeeded 1 times within 1 cycle(s) then alert
ICMP                 = if failed [Echo Request count 5 with timeout
15 seconds] 1 times within 1 cycle(s) then alert else if succeeded 1
times within 1 cycle(s) then alert

Program Name          = MYPROD_PROD_Web_Application
Path                 = /usr/local/bin/appcheck.sh
Monitoring mode      = active
Existence            = if does not exist 1 times within 1 cycle(s)
then restart else if succeeded 1 times within 1 cycle(s) then alert
Status               = if 'MYPROD_PROD_Web_Application' exit value !=
0 within 600 seconds then alert else if succeeded 1 times within 1
cycle(s) then alert

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