Max Memory for a User

tbutler

• December 19, 2022 03:15

It seems as though cPanel limits all shell users (other than root) to using just 200 mb of RAM for a process (according to ulimit's max memory), which is causing "Out of memory!" errors on a script I'm trying to run that is multithreaded. Is there a way to change the limit for a particular user?

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  tbutler

  • December 19, 2022 17:04

  (The context: I have a Perl backend to one of my web sites that does a bunch of updates via multiple threads. Perhaps the version of Perl or the libraries it uses are somehow smaller on my old CentOS system, but on the new AlmaLinux server I put it on, it seems to need about 300-400MB of RAM to operate its four threads without running out of memory. It runs fine as root, when there are no limits on it.)

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  cPRex Jurassic Moderator

  • December 19, 2022 20:16

  Hey there! Do you have fork bomb protection enabled on that machine? If so, can you try temporarily disabling it to see if that resolves the issue?

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  tbutler

  • December 20, 2022 02:48

  Thanks @cPRex! I did try disabling it and didn't notice a difference. I only left it off momentarily -- does it take awhile to "take effect"?

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  cPRex Jurassic Moderator

  • December 20, 2022 11:23

  No, that would be an immediate change, but you'd have to re-login as the user to ensure you're getting a new session with that change in place.

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