Update Multiple Gemfire instances from Web application

Hi

I have an requirement where we want to update region in multiple gemfire instances from Web application (only 2 fields in a region)

But there is a limitation where we can connect to only 1 gemfire from one JVM, so we cannot connect to multiple gemfire from Web application as it is considered as single JVM

Any suggestions on how to do this (we don't want to use WAN)