A technician runs top on a dual-core server and notes the following conditions: top `"- 14:32:27, 364 days, 14 users load average 60.5 12.4 13.6 Which of the following actions should the administrator take?
A.
Schedule a mandatory reboot of the server
B.
Wait for the load average to come back down on its own
Well, you don't want to reboot unless it's absolutely necessary. So no. And why would I boot users who have nothing to do with the problem? Find the problem process, and maybe the associated user, and address it from there.
Load Average in Linux is a metric that is used by Linux users to keep track of system resources. It also helps you monitor how the system resources are engaged.
To understand the Load Average in Linux, we need to know what do we define as load. In a Linux system, the load is a measure of CPU utilization at any given moment.
It refers to the number of processes which are either currently being executed by the CPU or are waiting for execution.
An idle system has a load of 0. With each process that is being executed or is on the waitlist, the load increases by 1.
Occasionally a process will stop responding to the system and run wild. These processes ignore their scheduling priority and insist on taking up 100% of the CPU. Because other processes can only get limited access to the CPU, the machine begins to run very slowly.
https://www.digitalocean.com/community/tutorials/load-average-in-linux
https://docs.cs.byu.edu/doku.php?id=runaway-processes
(cont.)
How can I identify a runaway process on my computer?
The 'w' command at the terminal will print out a list of current users of a machine, and it will tell you the machine's “load average.” The load average of a machine is related to how much input/output the machine has to do. A load average of 1 is a machine under full load. Anything over 1 is extremely high and means that the machine is getting behind on its processing. If your machine has a load average near or over 1, and you are not running anything really resource intensive on the machine, then you probably have a runaway process sapping your machine's processing power.
https://www.digitalocean.com/community/tutorials/load-average-in-linux
https://docs.cs.byu.edu/doku.php?id=runaway-processes
Users logging off does not seem to be the answer here. I would identify the processes and possibly reboot the server depending on what I find going wrong with the TOP command.
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