Am a sql DBA, learning postgres..In postgres logs i often receive "could not receive data from client: Connection timed out" I do not have any other logs other than this
Am not sure how to troubleshoot? I check the application logs and DBs logs to compare the time but I could not notice any abnormalities.
can someone guide me how to trace this issue.
Thanks
Best Answer
A few possibilities:
Your application closes connections without telling the PostgreSQL server it's doing so, by simply closing the network socket. It should send a
PQclose(conn)
if usinglibpq
, or whatever equivalent your language/driver has.Network address translation timeouts on idle connections or other related network issues cause the TCP connections to break, so client and server lose communication with each other.
A firewall on the client or server is blocking or disrupting connections after they're established (maybe malfunctioning IDS?)