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POMonit - how to identify crashes of a program instead of restarts
 

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  1. POMonit - how to identify crashes of a program instead of restarts
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    <p>I am using monit to monitor my program. The program being monitored can potentially crash under 2 situations</p> <ul> <li>Program can randomly crash. It just needs to be restarted</li> <li>It gets into a bad state and crashes each time it is started subsequently</li> </ul> <p>To fix the latter situation, I have a script to stop the program, reset it to a good state by cleaning its data files and restart it. I tried the below config</p> <pre><code>check process program with pidfile program.pid start program = "programStart" as uid username and gid groupname stop program = "programStop" as uid username and gid groupname if 3 restarts within 20 cycles then exec "cleanProgramAndRestart" as uid username and gid groupname if 6 restarts within 20 cycles then timeout </code></pre> <p>Say monit restarts the program 3 times in 3 cycles. After it is restarted the third time, the <strong>cleanProgramAndRestart</strong> script runs. However as the cleanProgramAndRestart script restarts the program yet again, the condition of 3 restarts is met again in the next cycle and it becomes an infinite loop</p> <p>Could anyone suggest any way to fix this? </p> <p>If any of the below actions are possible, then there may be a way around.</p> <ul> <li>If there is a "crash" keyword, instead of "restarts", I will be able to run the clean script after the program <strong>crashes</strong> 3 times instead of after it is <strong>restarted</strong> 3 times</li> <li>If there is a way to reset the "restarts" counter in some way after running the exec script</li> <li>If there is a way to exec something only if output of the condition <strong>3 restarts</strong> changed</li> </ul>
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