Synchronization issues

[devstromo]

Development team. I try to synchronize my sparql endpoint with ES, first: I code this
curl -XPUT "localhost:9200/_river/rdf_river/_meta" -d '{"type": "eeaRDF", "eeaRDF" : {"indexType":"full", "endpoint":"http://localhost:3030/books/sparql"} }'

Later i try to retrieve all data from ES using next code:
curl -X GET "localhost:9200/rdfdata/_search?size=50&pretty=true&q=*:*"
And I obtain next answer:

{ "took" : 2, "timed_out" : false, "_shards" : { "total" : 5, "successful" : 5, "failed" : 0 }, "hits" : { "total" : 1, "max_score" : 1.0, "hits" : [ { "_index" : "rdfdata", "_type" : "stats", "_id" : "1", "_score" : 1.0, "_source":{"last_update":"2016-05-18T17:28:15"} } ] } }
Fuseki has 51329 triples. I would like know what am I doing wrong?

Thanks in advance