@Override
      public void afterInvalidate(EntryEvent event) {
        logger.debug("BucketListener: o={}, r={}, k={}, dm={}", event.getOperation(),
            event.getRegion().getFullPath(), event.getKey(), event.getDistributedMember());
      }
This method creates bucket regions, based on redundancy level. If redundancy level is: a) = 1
it creates a local region b) >1 it creates a distributed region

@return @throws CacheException
geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegionDataStore.java