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Last updated: 2026-03-18 09:42:57

No system is immune to failures of various forms, and specific failures may lead to catastrophic database damage. The backend service of Tencent Cloud Distributed Cache periodically performs scheduled backups of instance data, while also supporting immediate backups at any given time. It generates database backup files in RDB format and stores them persistently in Tencent Cloud COS Service. When database data exceptions occur, it supports rapid cloning of a new instance based on the source instance to ensure database reliability.
Note:
Tencent Cloud Distributed Cache backup space can be used for free currently. Follow-up backup space billing will be notified in advance.
Category
Backup and Recovery
Explanation and Description
Operations
Data Backup
Automatic Backup
By default, a full data backup will be performed every day between 02:00 AM and 08:00 AM. In order to avoid increasing the processing burden on the master database, the backup data comes from replica nodes. You can flexibly configure the start time period of automatic backup tasks based on your conditions. You can see the daily backup data in Backup and Restoration  in the Tencent Cloud Distributed Cache console.
﻿Backing up Data﻿
﻿
Manual Backup
In addition to automatic backup that is performed by the system backend regularly, you can manually back up your instance in the Tencent Cloud Distributed Cache console to meet your diversified needs. 
﻿
﻿
Backup File
The backup list will display all the backup files of the instance and backup information. Tencent Cloud Distributed Cache provides two backup download addresses: private network and public network, and you can choose the one that best suits your needs.
Download from public network: You can download backup data anywhere you can access the Internet. The public network download is enabled by default, and you can disable it as needed.
Download from private network: In order to prevent database backup data from being dragged, Tencent Cloud Distributed Cache allows you to download backup files from specified servers on the allowed private network. You can’t download backup files across regions, and you can do so only in the region where the Redis instance resides.
﻿Configuring Backup File Download Method﻿
﻿Downloading Backup Files﻿
Data Restoration
Instance Clone
﻿Tencent Cloud Distributed CacheMemory Edition (excluding v2.8) supports instance clone, i.e., creating a complete instance based on a backup file. The data of the instance is the same as that in the backup file. You can use the clone feature to analyze previous data. You can also roll back an instance by swapping the IPs of the new instance and the original instance.
﻿Cloning Redis Edition Instances﻿
﻿Cloning Memcached Edition Instances﻿

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Tencent Cloud Distributed Cache (Redis OSS-Compatible)

Overview

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Category	Backup and Recovery	Explanation and Description	Operations
Data Backup	Automatic Backup	By default, a full data backup will be performed every day between 02:00 AM and 08:00 AM. In order to avoid increasing the processing burden on the master database, the backup data comes from replica nodes. You can flexibly configure the start time period of automatic backup tasks based on your conditions. You can see the daily backup data in Backup and Restoration in the Tencent Cloud Distributed Cache console.	Backing up Data
		Manual Backup	Backing up Data	In addition to automatic backup that is performed by the system backend regularly, you can manually back up your instance in the Tencent Cloud Distributed Cache console to meet your diversified needs.
		Backup File	The backup list will display all the backup files of the instance and backup information. Tencent Cloud Distributed Cache provides two backup download addresses: private network and public network, and you can choose the one that best suits your needs. Download from public network: You can download backup data anywhere you can access the Internet. The public network download is enabled by default, and you can disable it as needed. Download from private network: In order to prevent database backup data from being dragged, Tencent Cloud Distributed Cache allows you to download backup files from specified servers on the allowed private network. You can’t download backup files across regions, and you can do so only in the region where the Redis instance resides.	Configuring Backup File Download Method Downloading Backup Files
Data Restoration	Instance Clone	Tencent Cloud Distributed CacheMemory Edition (excluding v2.8) supports instance clone, i.e., creating a complete instance based on a backup file. The data of the instance is the same as that in the backup file. You can use the clone feature to analyze previous data. You can also roll back an instance by swapping the IPs of the new instance and the original instance.	Cloning Redis Edition Instances Cloning Memcached Edition Instances