public static Execution onMember(DistributedMember distributedMember) {
    return getFunctionExecutionService().onMember(distributedMember);
  }
Returns an {@link Execution} object that can be used to execute a data independent function on
a {@link DistributedMember}. If the member is not found, executing the function will throw an
Exception. If the member goes down while dispatching or executing the function on the member,
an Exception will be thrown.

@param distributedMember defines a member in the distributed system
@return an {@link Execution} object that can be used to execute a data independent function on
        a {@link DistributedMember}
@throws FunctionException if distributedMember is null
@since GemFire 7.0
geode-core/src/main/java/org/apache/geode/cache/execute/FunctionService.java