org.postgresql.util.PSQLException: The connection attempt failed

Question

I am connecting to postgres data base using java web services (apache axis) with JDBC connections to get the data.But suddenly in most of times

Answer 1

The real problem is:

Caused by: java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read

The connection was closed when Java tried to read from it. This can be caused by:

• The PostgreSQL server being restarted
• The PostgreSQL backend you were connected to being terminated
• The PostgreSQL backend you were connected to crashing
• Dodgy network connection
• Badly behaved stateful firewalls
• Idle connections timing out of the NAT connection tables of NAT firewall/routers

... and probably more. Check the PostgreSQL server logs to see if there's anything informative there; also consider doing some network tracing with a tool like Wireshark.