Having issues starting Coherence on Mac OSX or AIX?

If you are running Coherence under JDK 1.4 on Mac OS X, or AIX and seeing a process hang or a java.net.SocketException, add the following to the java command line:

-Djava.net.preferIPv4Stack=true

For details see these links:

• Sun's Bug Parade entry
• IBM 32-bit SDK for AIX User Guide

Additionally on AIX it is suggested that each Coherence cluster use a unique multicast address and port, as some versions of AIX will not take both into account when delivering packets.