Intermittent I/O error?

Hi,

I'm getting intermittent infamous errors:

Class: com.romeblack.release.core.EntityHomeException: An I/O error
occured while sending to the backend.
Exception: java.net.SocketException: Socket closed
Stack Trace:
java.net.SocketException: Socket closed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read(BufferedInputStream.java:235)
at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:241)
at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1122)
at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:175)
at
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:389)

These errors don't always occur - sometimes I'm able to run and test the
entire application without ever running into them.

I'm using Tomcat 5.5.9 and JDBC 2 driver 8.0-312 connecting to an 8.0.3
database on Fedora 4.

What can I do to fix this problem?

Thanks,
Simon
--

Simon (Vsevolod ILyushchenko) simonf(at)cshl(dot)edu
http://www.simonf.com

Terrorism is a tactic and so to declare war on terrorism
is equivalent to Roosevelt's declaring war on blitzkrieg.

Zbigniew Brzezinski, U.S. national security advisor, 1977-81