Yao,
You can set up a command region that is gateway enabled. Then use that region to propagate commands (like region clear) between sites. You can use a CacheWriter to actually process the command.
I'm not sure your exact setup, but the command region should be an empty replicate defined in all nodes and have subcription-attributes interest-policy="all" in the gateway nodes like:
<region name="command"> <region-attributes data-policy="empty" scope="distributed-ack" enable-gateway="true"> <subscription-attributes interest-policy="all"/> <cache-writer> <class-name>CommandProcessorCacheWriter</class-name> </cache-writer> </region-attributes> </region>
I probably have an example of this somewhere that I can post.
Barry
