R Batchen <batchenr@xxxxxxxxx> writes: > I hope i reached the right mailing list, i have psql 12.3 container that is > the db of apache guacamole container is connected to, > the apache guacamole stopped working and i started to get this message on > the postgres: > LOG: incomplete message from client > How can I debug it? This message indicates that the server collected a message header (length word) from the communication channel, but then detected EOF while trying to read that number of bytes. The two most plausible explanations for that are (1) some external force closed the network connection or (2) the client sent a invalid (far too large) length word. But to believe (2) you'd also have to believe that the client gave up and closed the connection before sending the number of bytes the server thought it had promised. That could happen if the client thought the command had timed out, but I'd expect it to log something about a timeout if it had. In short, I think something at the kernel or container level is closing the connection under you. You need to be looking into those system-level logs, as neither the postgres nor client logs would have any evidence of the primary cause. regards, tom lane