@Override
    public void memberSuspect(DistributionManager distributionManager, InternalDistributedMember id,
        InternalDistributedMember whoSuspected, String reason) {
      // do nothing
    }
Used to get membership events from our advisor to implement RegionMembershipListener
invocations.

@since GemFire 5.0
geode-core/src/main/java/org/apache/geode/internal/cache/DistributedRegion.java