I have installed the rediSearch module for an application, but I am getting the error Cannot create index on db != 0 do you know what it means?

CodePudding user response：

This is because RediSearch only operates on the default (0) database in Redis. Using numbered databases and the SELECT command is somewhat of an anti-pattern in Redis and I'd always recommend instead namespacing your keys using something like ":" as a separator or using different instances of redis-server if you have different types of data storage needs that you're currently spreading out across different numbered databases in the same redis-server instance.