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linuxbashshellmonit

Monit restart program script

I am fairly new to monit and I was wondering if this script is enough to restart a crashed program lets say program1 is the name of the program.

check process program1
matching "program1"
start program = "/home/user/files/start.sh"
stop program = "/home/user/files/stop.sh"

Will it restart a crashed program now? And how can I assure it does not restart the program when it is working?

Edit: some more info The program uses port 30000 udp. Will this make it more cautious? And how many seconds are between the "cycles"?

if failed port 30000 type UDP for 3 cycles then restart
Solution

  • Monit uses the system call execv to execute a program or a script. This means that you cannot write shell commands directly in the start, stop or exec statements. To do this, you must do as above; start a shell and issue your commands there.

    Read about execution

    This is just example what you should execute program or script:

    check process program1
matching "program1"
start program = "/bin/bash -c '/home/user/files/start.sh'"
stop program = "/bin/bash -c  '/home/user/files/stop.sh'"

    Based on ConfigurationExamples