Unable to index pdf files stored in S3 bucket

[PamuletiE]

I am trying to index pdf files stored in s3 bucket. I followed the instruction provided in the documentation. I am using ES 1.7.2 and sense plugin to execute queries. Below code is not giving any error. But it is not indexing s3 bucket.

PUT /river/mys3docs/meta { "type": "amazon-s3", "amazon-s3": { "accessKey": "AAAAAAAAAA", "secretKey": "BBBBBBBBBBBB", "bucket" : "upload_resumes", "pathPrefix": "/", "update_rate": 300000, "includes": ".doc,.pdf", "excludes": ".zip,.gz"
} }