public static void returnCompressor(Compressor compressor) {
    if (compressor == null) {
      return;
    }
    compressor.reset();
    payback(COMPRESSOR_POOL, compressor);
  }
Return the {@link Compressor} to the pool.

@param compressor
         the <code>Compressor</code> to be returned to the pool
ql/src/java/org/apache/hadoop/hive/ql/io/CodecPool.java