After upgrade # Err: connection error

Hi Team.

We have upgraded 20.1.15 to 20.2.5.

After upgraded we are getting connection refused error message in all cluster logs.

Could you please guide me for the same.

Error message:

W210719 09:00:07.399749 128579 vendor/google.golang.org/grpc/internal/channelz/logging.go:73 ⋮ ‹grpc: addrConn.createTransport failed to connect to {10.111..*:26262 0 }. Err: connection error: desc = "transport: Error while dialing dial tcp 10.111..*:26262: i/o timeout". Reconnecting…›

Thanks
RG

Hi RG!

Did you replace your IP address in the error message with the asterisk to hide the actual IP (i.e., 10.111..*)? In the original output, there was an actual IP address, like 10.111.1.1. Is that correct?

Hi @laurenbarker

Yes its like that .

The connection errors messages in the in logs may not indicate a problem. If you had a long-dead node and after an upgrade the cluster is trying to (re)connect to it, you may see these errors.

Unfortunately, we’d need more symptoms in order to help determine the cause. Since this question is specific to your environment, I’d recommend reaching out to support or asking in the community slack.