Lifecycle of Tair (Redis OSS-compatible) instances - Tair (Redis® OSS-Compatible)

This topic describes the lifecycle of a Tair (Redis OSS-compatible) instance. The lifecycle starts from the time when the instance is created to the time when the instance is released or unsubscribed.

Lifecycle

Important

If you perform specific operations on an instance, the state of the instance changes. This affects the instance in different ways. For example, the service may be interrupted for a few seconds. For more information, see Instance states and impacts.

Operation	Description
Create an instance	Tair (Redis OSS-compatible) is available in two editions: Tair (Enterprise Edition) and Redis Open-Source Edition. Tair (Enterprise Edition) provides the following types of instances: DRAM-based instances, persistent memory-optimized instances, and ESSD/SSD-based instances. You can choose an instance based on your business requirements.
Change the configurations of an instance	You can change the specifications, architecture, and type of your instance to meet the performance and compatibility requirements of different scenarios.
Adjust the number of shards for an instance	A larger number of shards result in higher instance performance. You can adjust the number of shards for a cloud-native instance based on your business requirements. For more information about the specifications of cloud-native instances, see Specifications of Redis Open-Source Edition cloud-native instances.
Restart an instance	If the number of connections reaches the upper limit or if performance issues occur, you can restart the Redis instance to close all connections.
Upgrade the major version	You can upgrade the major version of a Redis Open-Source Edition instance, for example, from 2.8 to 4.0. After the major version of the instance is upgraded, you can use the functions and features of the new version. For more information, see New features and compatibility changes of major versions of Redis Open-Source Edition.
Update the minor version of an instance	Alibaba Cloud continuously optimizes the kernel of Tair (Redis OSS-compatible) to fix security vulnerabilities and improve service stability. We recommend that you periodically check and update the minor version of your instances.
Release pay-as-you-go instances	You can release idle pay-as-you-go instances to reduce resource usage.
Manage instances in the recycle bin	The recycle bin is used to store expired, overdue, and released instances. You can renew, recreate, or permanently delete instances in the recycle bin.