Redis cluster connection closed by server error

[chilumb...@gmail.com]

I have a redis cluster with 6 nodes total; 3 masters each with one slave. All the nodes seem to be working just fine except for one master instance with its slave. For this master and it's slave, overtime i run the "redid-cli monitor" command in the terminal, i get the error:

    Error: Server closed the connection

We are also using predis to access our redis cluster, and it seems that any queries directed to this troublesome master and slave (even with the MOVED TO message), we get the following errors:

    2015-10-04 22:00:09 66513 Error while reading from the Line Server [. tcp: //192.168.2.100: 6379]

It seems like the main cause starts with the redis servers as demonstrated with the error they are producing with the redids-cli monitor command. What can possibly be causing these errors?

I tried creating a new slave from scratch, and tested the redis-cli command and still getting the Server closed the connection error.

 

[Josiah Carlson]

Are you running in a cloud hosting provider? Have you checked your firewall rules? What other debugging have you performed?

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[chilumb...@gmail.com]

The issue happened to be with running sentinel with the redis cluster. So after i turn off sentinel, this error went away. Apparently, it is pointless (for the purpose of failover) to use senile with the redis cluster as it handles failover on its own