CloudLinux is one of the widely used Operating System nowadays due to the high-level stability and advanced server security it provides, which makes it the first preference for hosting providers, especially in a shared hosting environment.
LVE (Lightweight Virtual Environment) is a kernel-level technology developed by the CloudLinux team. It is lightweight and transparent. The goal of LVE is to make sure that no single website can bring down your web server.
The kernel makes sure that all LVEs get a fair share of the server’s resources, and that no customer can use more than the limits set for that customer.
Today we can limit CPU, Memory (virtual and physical), IO, number of processes as well as the number of entry processes (concurrent connections to apache) on user-specific.
One of the best ways to monitor current usage of users is “lvetop” , which is similar to the ‘top’ tool we are familiar with.
It will show you CPU, Memory, Entry Processes and other usages for a particular account in real-time, as below :
ID EP PNO TNO SPEED MEM IO IOPS
user1 0 3 3 5% 137 4 1
user2 0 2 2 1% 130 3 1
user3 0 1 1 0% 15 0 0
user4 0 1 1 0% 22 0 0
ID user name if LVE id matches user id in /etc/passwd, or LVE id
EP number of entry processes (concurrent scripts executed)
PNO number of processes within LVE
TNO number of threads within LVE
CPU CPU usage by LVE, relative to total CPU resources of the server
MEM Memory usage by LVE, in KB
I/O I/O usage
IOPS number of read/write operations per second
In this way, we can monitor and locate the account hitting the Entry Processes via command line.
A GUI interface of this tool is present in WHM as well :
WHM Home » Server Configuration » CloudLinux LVE Manager
If you require help, contact SupportPRO Server Admin