Re: Peer logs filled with TLS handshake error #fabric #tls #ssl #fabric-questions

Matthew Sykes

EOF - End of File. It's likely indicating the other end of the connection has closed during the handshake, that a network error occurred, or that a record header with an incorrect length was received.
i/o timeout - the error string included in expired deadline errors. These are generally read timeouts.

The addresses in the errors are telling you the addresses of clients that are closing their connections or failing to send data within a reasonable time. For gRPC, the connection timeout is used as the deadline and covers the TLS handshake and HTTP/2 protocol negotiation. This can be changed for the peer by setting the `peer.connectionTimeout` config key. The default appears to be 5s.

You need to investigate the root cause in your own environment and make appropriate changes.

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