ApsaraDB for Redis supports manual hot upgrades of proxy servers. After you upgrade a proxy server, you can use the latest features. For example, you can view the audit logs of the proxy server. This topic describes how to upgrade a proxy server.
Prerequisites
- A cluster instance or a read/write splitting instance is used.
- The instance is of Community Edition or Enhanced Edition (Performance-enhanced instances and Hybrid-storage instances)
Impacts
- Proxy servers support hot upgrades. A proxy server of the new version can restore the connection based on the client connection information of the proxy server of the earlier version. This ensures uninterrupted connections. However, a millisecond-level latency jitter may occur during the upgrade.
- The hot upgrade is only valid for normal connections. The execution of the block, Transaction, Pub, and Sub commands will be interrupted. Make sure that these commands support the reconnection mechanism.
- If the Redis client uses a private endpoint to connect to the ApsaraDB for Redis instance, no commands are affected by a proxy upgrade.
Note For more information about proxy addresses and private endpoints, see Proxy mode and Direct connect mode.