default void memberSuspect(DistributionManager distributionManager, InternalDistributedMember id,
      InternalDistributedMember whoSuspected, String reason) {
    // implement if needed
  }
This method is invoked after the group membership service has suspected that a member is no
longer alive, but has not yet been removed from the membership view

@param distributionManager that is calling this listener
@param id the suspected member
@param whoSuspected the member that initiated suspect processing
@param reason the reason the member was suspected
geode-core/src/main/java/org/apache/geode/distributed/internal/MembershipListener.java