@Override
    public void toData(DataOutput out,
        SerializationContext context) throws IOException {
      super.toData(out, context);
      out.writeBoolean(isPrimary);
      out.writeBoolean(isHosting);
      out.writeBoolean(isInitializing);
    }
True if the bucket has been removed from this host. (
geode-core/src/main/java/org/apache/geode/internal/cache/BucketAdvisor.java