2022
Cron is a time-based job scheduler. DBSync uses cron to schedule jobs to run periodically at fixed times, dates or intervals.
The cron is a long-running process that executes commands at specific dates and times. You can use this to schedule activities, either as one-time events or as recurring tasks.
Timing Syntax
Cron determines how often and when the cron job is going to run.
It consists of five parts:
- Minute
- Hour
- Day of month
- Month
- Day of week
Examples based on the above "commands to execute"
This cron job will run every minute, all the time
* * * * * [command]
This cron job will run at minute zero, every hour (i.e. an hourly cron job)
0 * * * * [command]
This will run once a month, on the second day of the month at midnight (i.e. January 2nd 12:00am, February 2nd 12:00am etc.)
0 0 2 * * [command]
This will run on Mondays, every hour (i.e. 24 times in one day, but only on Mondays)
0 * * * 1 [command]
The below commands need to add in the system.properties to execute the cron- log file cleaner.
Add these 2 commands in system.properties
log.maxcount=
log.cleaner.cron =
Example:
log.maxcount= ( DBSync default log.maxcount=6000, As based on the above explanation please follow the timing syntax to add the max count- (i.e To limit the count of the logs generated)
log.cleaner.cron = (It is based on the user's requirements, please follow the timing syntax to clean all the logs as per the given time frame)
ex:- log.cleaner.cron = 0 0/2 * * * ? *
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