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I am trying to uninstall plesk from my VPS by running following command:

yum remove sw-* psa-* plesk-*

When I run this command I get following error: 

Running rpm_check_debug Running Transaction Test memory alloc (4 bytes) returned NULL.

First time when I run above command, this mem alloc (4 bytes) was very big number like (67864987). then I Googled it, got some clear/ulimit commands. Executed them. Rebooted my system. Stopped all processes and executed this command again but still getting 4 byte issue. Don't know how to get rid of it.

I also tried ulimit after reboot but no success and Yes. No swap attached. These are stats of my system:

[root@vps ~]# free -m total used free shared buffers cached Mem: 384 67 316 0 0 0 -/+ buffers/cache: 67 316 Swap: 0 0 0 top - 21:01:07 up 3:12, 1 user, load average: 0.24, 0.08, 0.03 Tasks: 31 total, 2 running, 29 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 393216k total, 69832k used, 323384k free, 0k buffers Swap: 0k total, 0k used, 0k free, 0k cached

Is there any other alternative to achieve my goal to uninstall plesk? thanks.

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Rebooting your system undoes everything you set with ulimit - Raising the limits is effective for the current session only.

Absent more information about your configuration we can't help you, we can only take wild guesses in the dark.
My wild guess: Your VPS does not have sufficient RAM allocated to it to run the yum/rpm removal process, and probably doesn't have any swap configured.
Either:

  • Remove the packages one or two at a time (which may or may not solve the problem)
  • Have your provider allocate more RAM to your VPS (and pay them accordingly)
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  • Yes. You are right. my VPS didn't have sufficient memory for this process. so i left using that system. Commented Apr 30, 2012 at 13:18

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