Re: updatedb deletes all metadata except _csh_

[alxsss]

Further investigation shows that DbUpdateReducer
calls 
 inlinkedScoreData.clear();

and it calls this function 

 public void readFields(DataInput in) throws IOException {
    System.out.println("readFields in score datum is called");
    score = in.readFloat();
    url = Text.readString(in);
    anchor = Text.readString(in);
    distance = WritableUtils.readVInt(in);
    metaData.clear();

    int size = WritableUtils.readVInt(in);
    for (int i = 0; i < size; i++) {
      String key = Text.readString(in);
      byte[] value = Bytes.readByteArray(in);
      metaData.put(key, value);
    }
  }

of ScoreDatum class.
And metaData.clear(); line clears all metadata.

Why metaData.clear(); line is needed in this function?

Thanks.
Alex.



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