pool = new ShardedJedisPool(new GenericObjectPool.Config(), info);
  }
  @Override
  public Directory open(String name) throws IOException {
    RedisDirectory redisDir = new RedisDirectory(name, pool);
    if( !redisDir.exists() ) {
      IndexWriter writer = new IndexWriter(redisDir, new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36)));
      writer.commit();
      writer.close();
    }
    return redisDir;