@Override
      public boolean movePrimary(InternalDistributedMember source, InternalDistributedMember target,
          int bucketId) {
        if (target.equals(member2)) {
          return false;
        }
        return super.movePrimary(source, target, bucketId);
      }
Test that we can move primaries if failures occur during the move. In this case member2 is bad,
so primaries should move to member3 instead.
geode-core/src/test/java/org/apache/geode/internal/cache/partitioned/rebalance/PartitionedRegionLoadModelJUnitTest.java