[QUESTION]How can I determine whether the connection to Redis is successful?

[daizhichao]

Is it necessary to use the ping() function to determine whether the connection is successful? As shown in the figure, an exception indicating a connection failure will be thrown only after using the ping() function.

[daizhichao]

[sewenew]

The connection is lazily created, i.e. when you send command to Redis server, redis++ creates a connection to it.

If you want to check if the given <host, port> pair works, you can manually send a ping command.

Regards