Shulou(Shulou.com)06/03 Report--

What the editor shares today is the solution to the high memory of Ali cloud server. You may be familiar with Ali cloud server, or you may never know about Ali cloud server. But don't worry, today the editor will describe the principle of Ali cloud server in the simplest way.

Generally speaking, there are two solutions for high memory of Ali CVM. One is to find processes or files with high memory consumption for optimization and cleaning, and the other is to upgrade the configuration of CVM to increase the memory capacity.

View server memory usage

Linux CVM can view it by executing free,top (memory can be sorted through shift+m after execution), vmstat,procinfo command, or accessing / proc/meminfo file.

View memory consumed by a single process

You can view it by executing the top-p PID,pmap-x PID,ps aux | grep PID command, or by visiting the / proc/$process_id (process's PID) / status file.

In general, when the load of a CVM is high, it may be due to insufficient CPU resources, read and write bottlenecks of Imax O, insufficient memory resources, intensive computing in CPU, too many files or data stored, and so on.

It is recommended to use the vmstat,iostat,top command to determine the cause of the overload, and find a specific process that takes up a lot of resources for optimization. Or if there are no files to delete, upgrading and expansion is the most direct long-term solution.

Users of CVM can freely choose vCPU, memory, data disk, bandwidth and other configurations according to different needs. They can also upgrade bandwidth without downtime at any time, and upgrade vCPU and memory within 1 minute to support the continuous development of the business.

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