Re: invalid message format and I/O error while comunicating

Sergi Vera wrote:

> Everything is working ok and fast, but at some moment (sometimes sooner,
> sometimes later) the server starts to fail with the following messages
> 
> org.postgresql.util.PSQLException: invalid message format (for the first
> failure)
> org.postgresql.util.PSQLException: A I/O error has happened while
> sending to backend (at every following jdbc call)

I suggest having a look in the server logs to see if there is any error
being re****ted by the backend.

You might also find it helpful to enable log_statement and
log_connection in postgresql.conf while you're trying to track the issue
down. Your logs might get quite big if your load is high, though.

--
Craig Ringer

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