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This article will explain in detail how to achieve performance tuning in GlusterFS. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Cluster NAS system based on GlusterFS is a complex system engineering, and its overall performance is closely related to specific application characteristics, hardware and software configuration and so on. When the system is deployed, if the performance differs greatly from the estimated or empirical value, the performance needs to be tuned according to the actual situation. According to the composition of Gluster system, performance tuning mainly starts from three parts: hardware, OS system and GlusterFS file system. Through testing and experimental analysis, the key points affecting performance are obtained, and then targeted tuning methods are implemented. Typical scenarios that cause performance problems are as follows:

(1) incorrect disk configuration

(2) incorrect network configuration

(3) there are faults in the hardware itself.

(4) insufficient number of servers

(5) incorrect file access protocol

1. Hardware tuning

To some extent, the performance of GlusterFS depends on hardware infrastructure, which mainly involves server, CPU, memory, disk, network and other components. Hardware performance directly determines the theoretical performance of the system. When the performance can not meet the application requirements, we should first analyze whether the hardware configuration is adequate. If there are obvious problems with the hardware configuration, you can directly improve performance by upgrading the hardware configuration, such as more and higher performance CPU, more memory, more or faster disks, more network interfaces or faster networks.

2. OS system tuning

In general, the default parameter setting of the system is to adapt to more application loads, but the performance is often not * *, such as Imax O scheduling algorithm, Cache parameters, process scheduling affinity, disk file system parameters, mount parameters, network communication parameters and so on. According to the specific application characteristics, these parameters can be personalized configured based on theoretical analysis and experimental tests to achieve higher performance improvement.

3. GlusterFS file system tuning

The underlying core of Gluster is the GlusterFS distributed file system, which provides many adjustable system parameters to meet different application load requirements, among which the main parameters related to performance tuning include:

(1) Global Cache-Size, default value 32MB

(2) Write-Cache-Size per file, default value 1MB

(3) the number of concurrency of Icano. Default is 16.

(4) Read-ahead switch, default value On

(5) stripe size. Default is 128KB.

This is the end of the article on "how to achieve performance tuning in GlusterFS". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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