Best Practices for System Variables and Configuration Files in a TiDB Cluster

This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: tidb集群的系统变量和配置文件的最佳实践

| username: terry0219

【TiDB Usage Environment】Testing
【TiDB Version】7.5
There are many configurations for the TiDB cluster. I would like to ask if there are any best practice configurations or any documentation that can be referenced. This would be helpful for preparing for the production environment.

| username: zhanggame1 | Original post link

Check out this post:
What initial optimizations do you make for a newly deployed TiDB? - :ringer_planet: TiDB Technical Issues / Performance Tuning - TiDB Q&A Community (

| username: terry0219 | Original post link

Thanks for the reply, I’ll take a look.

| username: ealam_小羽 | Original post link

You can check the tuning documentation: 操作系统性能参数调优 | PingCAP 文档中心

| username: 这里介绍不了我 | Original post link

Marking this for later, need to learn.

| username: Kongdom | Original post link

:yum: Personally, I believe that if it is a standard deployment, the default settings are the best.

| username: 小龙虾爱大龙虾 | Original post link

There is no need for any adjustments. Under the standard deployment, parameters do not need to be adjusted. Just add the parameters for automatic log cleaning.

| username: dba远航 | Original post link

Take a look at the official manual, it’s quite comprehensive.

| username: wangccsy | Original post link

Received and understood.

| username: 哈喽沃德 | Original post link

Got it.

| username: system | Original post link

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