@Override
  public boolean isPrimary() {
    return advisor.isPrimary();
  }
Get the redundancy of the this bucket, taking into account the local bucket, if any.

@return number of redundant copies for a given bucket, or -1 if there are no instances of the
        bucket.
geode-core/src/main/java/org/apache/geode/internal/cache/ProxyBucketRegion.java