Sign InTry Free

TiDB Experimental Features

This document introduces the experimental features of TiDB in different versions. It is NOT recommended to use these features in the production environment.

Performance

Stability

  • Improve the stability of the optimizer's choice of indexes: extend the statistics feature by collecting the multi-column order dependency information (Introduced in v5.0).
  • Background Quota Limiter (Introduced in v6.2.0): You can use the background quota-related configuration items to limit the CPU resources to be used by the background. When a request triggers Quota Limiter, the request is forced to wait for a while for TiKV to free up CPU resources.

Scheduling

  • Elastic scheduling feature. It enables the TiDB cluster to dynamically scale out and in on Kubernetes based on real-time workloads, which effectively reduces the stress during your application's peak hours and saves overheads. See Enable TidbCluster Auto-scaling for details. (Introduced in v4.0)
  • Balance hot Region scheduling by using the v2 algorithm in PD. See scheduler config balance-hot-region-scheduler for details. (Introduced in v6.3)

SQL

Storage

Data migration

Data share subscription

Garbage collection

Diagnostics

Download PDFRequest docs changes
Was this page helpful?
Open Source Ecosystem
TiDB
TiKV
TiSpark
Chaos Mesh
© 2022 PingCAP. All Rights Reserved.