If you receive an error message when you use ApsaraDB for Redis, you can refer to the list of ApsaraDB for Redis error codes to view the detailed information about the message. For other issues, you can refer to the following topics for troubleshooting.
Features
What version of Redis is compatible with ApsaraDB for Redis?
What commands and operations of Redis are compatible with ApsaraDB for Redis?
What is the relationship between ApsaraDB for Redis and open source Redis?
What is the maximum number of databases that a single ApsaraDB for Redis instance can have?
Does each ApsaraDB for Redis instance have master and replica nodes?
Can I configure multiple replica nodes for an ApsaraDB for Redis instance?
Does ApsaraDB for Redis support failovers between master and replica nodes?
Redis CSRF vulnerability analysis and security measures available for ApsaraDB for Redis
What is the difference between ApsaraDB for Redis cluster instances and open source Redis clusters?
Networks and connections
How do I obtain the endpoint and ID of an ApsaraDB for Redis instance?
Does ApsaraDB for Redis support Redis clients such as Jedis?
Do I need to install a Redis client on an ECS instance to connect to ApsaraDB for Redis instances?
Do I need to use a password to connect to an ApsaraDB for Redis instance?
How do I troubleshoot connection issues in ApsaraDB for Redis?
Connect an ECS instance to an ApsaraDB for Redis instance in different types of networks
Can an ECS instance in a VPC connect to an ApsaraDB for Redis instance in the classic network?
How do I troubleshoot connection issues caused by failed DNS resolutions?
How do I use the telnet command to test connectivity to the port used by ApsaraDB for Redis?
Why am I unable to select an existing vSwitch when I create an ApsaraDB for Redis instance?
Databases
Database usage
Performance and monitoring
Why is the reported memory usage different from the monitored memory usage?
View the information about each shard of an ApsaraDB for Redis cluster instance
View the performance metrics of child nodes in an ApsaraDB for Redis cluster instance
View memory usage of all instances in the current Alibaba Cloud account
Use memtier_benchmark to test the performance of an ApsaraDB for Redis cluster instance
Persistence
Parameter settings
Expiration policies