public void setDatastoreCreated(EvictionAttributes evictionAttributes) {
    firstDataStoreCreated = true;
    ea = evictionAttributes;
  }
This method sets the isDestroying flag to true, to indicate that the PartitionedRegion's
destruction responsibility is taken up by a node.
geode-core/src/main/java/org/apache/geode/internal/cache/PartitionRegionConfig.java