At the same time as upgrading to Resin 4 we are upgrading to Oracle 11gR2.

Starting/stopping resin was very non-deterministic seeming to hang 
sometimes during application startup with references to connection 
timeouts in the error logs.

SQLRecoverableException: IO Error: Connection reset

The problem was traced to a drying up of the "entropy poll" preventing 
oracle jdbc from allocating connections until the pool was replenished

The following article explains in full

The solution was to add the following to resin.xml

<!-- Deal with problems associated with 11G JDBC driver
new connection requires random number but generator uses entropy pool
filled by random user actions - server has no connected user so entropy 
pool often empty.... -->


Hope this helps someone.



Alan Wright
Athene Systems

tel 0845 230 9803

Athene Systems Limited
Registered Office:
Shieling House
Invincible Road
GU14 7QU

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