When Hadoop executes a Job using plugin with one query like the follow:
samples/test/_search?q=*

The Map input 136188 data to map. But in ElasticSearch execute the follow query:
samples/test/_count?q=*

The result is:
{"count": 68094, "_shards":{"total":5, "successful":5, "failed":0}}

My environment is:
Linux, Hadoop 1.2.0 (3 nodes), ES 0.90.1 (3 nodes).