The legacy TencentDB for Redis Cluster Edition instances (purchased before January 1, 2018) are on an older version and architecture, which may pose a risk to instance stability. We recommend that you migrate their data to TencentDB for Redis 4.0 Memory Edition (standard or cluster architecture).
TencentDB for Redis 4.0 comes with more flexible configuration, higher performance, and more comprehensive features. This document describes how to migrate data from your legacy instances to TencentDB for Redis 4.0 Memory Edition instances (standard or cluster architecture).
To avoid data loss, you need to stop writing to your legacy instances before migrating their data to TencentDB for Redis Memory Edition instances (standard or cluster architecture), as hot migration is unsupported in this case.
You can configure a security group or reset the password to block all access requests. You can check QPS on the monitoring page: if it is zero, all access requests are blocked successfully.
If your existing data is less than 12 GB with expected incremental data of no more than 60 GB and QPS of no more than 40,000, or you need to use transaction commands, TencentDB for Redis 4.0 Memory Edition (standard architecture) is recommended; otherwise, TencentDB for Redis 4.0 Memory Edition (cluster architecture) is your best choice. The cluster architecture is compatible with all commands of the legacy instances except that it does not support transaction commands.
./redis-restore dump.rdb -t 127.0.0.1:6379