05-20-2014
As suggested by others why would you want to set limits for root? If you limit root you risk locking yourself out of the OS. Any applications running should run as a user created for the task, you can then apply limits to that user to protect the servers performance without risking blocking the root user.
Just today we had an application spin out of control and hit the limit of processes for the user account which had started the application. This meant that application support could not login to the server, but as root I was able to login and kill the rogue process.
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