There are two test classes written for testing Map Reduce on TopologyAware nodes:

https://github.com/andyuk1986/infinispan/blob/DISTEXEC/core/src/test/java/org/infinispan/distexec/mapreduce/BookSearchOnTopologyAwareNodesTest.java

https://github.com/andyuk1986/infinispan/blob/DISTEXEC/core/src/test/java/org/infinispan/distexec/mapreduce/TopologyAwareTwoNodesMapReduceTest.java

But both of them are failing.

The first one fails due to that the data is not replicated to other node (see https://issues.jboss.org/browse/ISPN-2629?focusedCommentId=12741469&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12741469).

The second test fails due to not cancelled map reduce tasks (see https://issues.jboss.org/browse/ISPN-2629?focusedCommentId=12741470&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12741470) . This one is really strange, as it fails only when I run it with the bunch of distexec tests, otherwise when separately run - it succeeds.