The idea of this project is a simple script that can sit in a machine and monitor the amount of time that each command in crontab takes with minimum effort.
It's pretty simple.
- Download the project.
- Copy config.ini.dist to config.ini
- Update the config.ini file
- Run update_commands.php to save the commands
- Run monitor.php to track the execution time
If this value is 0 then the script checks the crontab commands once and goes out. On the other hand if it's a number greater than 0 it will use that interval and checks every check_interval seconds the crontab commands.
The 0 value is mostly used when you put this script as a cronjob for example to run every 30 seconds. When not 0 it's better to be used as a service so in case it dies the system takes care of launching it agian.
Take in account based on how often you run the script or the value of check_interval the timing can be less or more precise. This script is mainly for commands that take more than 10 seconds and not short commands.
The path to ssh binary file. You can find it using which ssh
This is the command used by crontab to run a cronjob. Generally the default value should work fine but to make sure that this is the right value put a cronjob with sleep 10 and once it runs run ps aux | grep sleep
You will see 2 instances of sleep, one with a command behind it and one alone. The first one tells you what exactly to use.
In debian or macos case it shows /bin/sh -c sleep 10
A list of strings that if a cronjob contains it will be ignored. By default only monitor.php is added to avoid monitoring the script itself.
The monitoring system checks the crontabs in multiple servers. The values of this field should be the following way. user@server_ip:user1,file1,user2,file2
If a user is passed crontab -u user -l is used and if a file path is passed the cat file is used.
This is where the stats and commands are kept.