Thanks Craig,
Browsing the pgsql logs I've found the following error messages (roughly
translated to english):
(autovacuums)
...
(autovacuums)
ERROR: remaining data on the message is not sufficient
FATAL: message type from the frontend 0 is not valid
I just don't understand why sometimes it fails and sometimes not.
I will try the other suggestion you made as soon as possible
Craig Ringer escribió:
> 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 reported 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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