Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Hardware considerations aside, are there any limitations on:

  1. The maximum number of cron jobs that can be scheduled for a single user
  2. The maximum number of CONCURRENT jobs that can be scheduled for a single user?

Server is running Ubuntu 10.0.4 LTS

Additional info: The jobs will all be launching the same executable, but with different command line arguments

share|improve this question

2 Answers 2

I don't know of a limit here - although there surely will be some - But I never hit one and I've seen rather huge crontabs.

Just give it a try and let us know!

share|improve this answer

For my part, I never saw any limit for Crontab.
However, I think the limit of your crontab is just the limit of your station. I mean the capability of the computer where you are running your OS.
You must test :
- the load of the unit
- the swap use
- how many processes for each daemon or exec.

Example :

If you are hosting a LAMP service with advanced services (like a big SQLDB), don't plan a huge dump (or tables cleanup ) when the LAMP is charged (find hours where the server have a low load).

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.