River will not start (Log Included)

[CindyConway]

Every time I try to get my river flowing the status is START_FAILED. After a lot of research, I have run out of things to try. I have put the details of the log at the bottom, but the relevant line appears to be:

[2015-09-23 14:09:05,899][WARN ][org.elasticsearch.river.mongodb.MongoDBRiver] Failed to start river mongodbcom.mongodb.MongoException: not authorized for query on local.system.namespaces

but I have tried everything I can find online related to this error and nothing seems to work.

System Configuration

Mongo 2.6.6 (replicaset: a primary, a secondary, and an arbiter)
Elasticsearch 1.4.2
ES River 2.0.5

User Configuration in Mongo

indexofrecords:PRIMARY> db.getUsers()
[
        {
                "_id" : "index_of_records.elasticsearch_river",
                "user" : "elasticsearch_river",
                "db" : "index_of_records",
                "roles" : [
                        {
                                "role" : "read",
                                "db" : "index_of_records"
                        },
                        {
                                "role" : "read",
                                "db" : "local"
                        }
                ]
        }
]

Accessing local.oplog.rs(logged in as elasticsearch_river)

indexofrecords:PRIMARY> db.oplog.rs.findOne();
{
        "ts" : Timestamp(1435455901, 1),
        "h" : NumberLong("-5167618069921233052"),
        "v" : 2,
        "op" : "u",
        "ns" : "index_of_records.schedules",
        "o2" : {
                "_id" : ObjectId("558dd3cd8517084327d35b44")
        },
        "o" : {
                "_id" : ObjectId("558dd3cd8517084327d35b44"),
                "history" : [
                        {
                                "status" : "REMOVE_FROM_SEARCHABLE"
                        }
                ]
        }
}

I use Sense to set the River's config

PUT /_river/mongodb/_meta
{
  "index": {
    "name": "index_of_records",
    "type": "record_types"
  },
  "mongodb": {
    "db": "index_of_records",
    "servers": [
      {
        "port": "27021",
        "host": "mean-db1"
      }
    ],
    "collection": "elasticsearch_fmt"
  },
  "credentials": [
    {
      "db": "local",
      "auth":"index_of_records",
      "user": "elasticsearch_river",
      "password": "SECRET"
    }
  ],
  "type": "mongodb"
}

The log (with logging configured per Wiki)

2015-09-23 14:07:57,522][INFO ][node                     ] [Night Nurse] version[1.4.5], pid[22997], build[2aaf797/2015-04-27T08:06:06Z]
[2015-09-23 14:07:57,523][INFO ][node                     ] [Night Nurse] initializing ...
[2015-09-23 14:07:57,603][INFO ][plugins                  ] [Night Nurse] loaded [mongodb-river, mapper-attachments, marvel], sites [marvel, river-mongodb]
[2015-09-23 14:08:00,655][TRACE][rest.action.mongodb      ] [Night Nurse] RestMongoDBRiverAction - baseUrl: /_river/mongodb
[2015-09-23 14:08:01,111][INFO ][node                     ] [Night Nurse] initialized
[2015-09-23 14:08:01,111][INFO ][node                     ] [Night Nurse] starting ...
[2015-09-23 14:08:01,231][INFO ][transport                ] [Night Nurse] bound_address {inet[/0.0.0.0:9300]}, publish_address {inet[/10.250.40.201:9300]}
[2015-09-23 14:08:01,265][INFO ][discovery                ] [Night Nurse] elasticsearch/-B6pBR4ISDqFgkmyyXIYXw
[2015-09-23 14:08:05,036][INFO ][cluster.service          ] [Night Nurse] new_master [Night Nurse][-B6pBR4ISDqFgkmyyXIYXw][MEAN-DB1][inet[/10.250.40.201:9300]], reason: zen-disco-join (elected_as_master)
[2015-09-23 14:08:05,171][INFO ][http                     ] [Night Nurse] bound_address {inet[/0.0.0.0:9200]}, publish_address {inet[/10.250.40.201:9200]}
[2015-09-23 14:08:05,172][INFO ][node                     ] [Night Nurse] started
[2015-09-23 14:08:06,641][INFO ][gateway                  ] [Night Nurse] recovered [6] indices into cluster_state
[2015-09-23 14:08:09,302][TRACE][org.elasticsearch.river.mongodb.MongoDBRiver] Initializing river : [mongodb]
[2015-09-23 14:08:09,307][TRACE][river.mongodb            ] Parse river settings for mongodb
[2015-09-23 14:08:09,318][TRACE][river.mongodb            ] mongoServersSettings: [{port=27021, host=mean-db1}]
[2015-09-23 14:08:09,318][TRACE][river.mongodb            ] Server: mean-db1 - 27021
[2015-09-23 14:08:09,370][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] MongoDB River Plugin - version[2.0.5] - hash[c11c5ae] - time[2014-12-18T12:08:22Z]
[2015-09-23 14:08:09,372][ERROR][org.elasticsearch.river.mongodb.MongoDBRiver] Cannot start river mongodb. Current status is START_FAILED
[2015-09-23 14:08:54,481][DEBUG][rest.action.mongodb      ] [Night Nurse] uri: /_river/mongodb/mongodb/delete?
[2015-09-23 14:08:54,481][DEBUG][rest.action.mongodb      ] [Night Nurse] action: delete
[2015-09-23 14:08:54,481][INFO ][rest.action.mongodb      ] [Night Nurse] Delete river: mongodb
[2015-09-23 14:08:54,538][INFO ][cluster.metadata         ] [Night Nurse] [[_river]] remove_mapping [[mongodb]]
[2015-09-23 14:08:54,542][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] Closing river mongodb
[2015-09-23 14:08:54,543][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] Stopping river mongodb
[2015-09-23 14:08:54,543][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] Stopped river mongodb
[2015-09-23 14:08:54,561][DEBUG][rest.action.mongodb      ] [Night Nurse] uri: /_river/mongodb/list?
[2015-09-23 14:08:54,561][DEBUG][rest.action.mongodb      ] [Night Nurse] action: list
[2015-09-23 14:08:54,568][TRACE][rest.action.mongodb      ] [Night Nurse] totalHits: 0
[2015-09-23 14:09:05,631][INFO ][cluster.metadata         ] [Night Nurse] [_river] update_mapping [mongodb] (dynamic)
[2015-09-23 14:09:05,637][TRACE][org.elasticsearch.river.mongodb.MongoDBRiver] Initializing river : [mongodb]
[2015-09-23 14:09:05,638][TRACE][river.mongodb            ] Parse river settings for mongodb
[2015-09-23 14:09:05,638][TRACE][river.mongodb            ] mongoServersSettings: [{port=27021, host=mean-db1}]
[2015-09-23 14:09:05,638][TRACE][river.mongodb            ] Server: mean-db1 - 27021
[2015-09-23 14:09:05,640][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] MongoDB River Plugin - version[2.0.5] - hash[c11c5ae] - time[2014-12-18T12:08:22Z]
[2015-09-23 14:09:05,648][INFO ][river.mongodb.util       ] setRiverStatus called with mongodb - RUNNING
[2015-09-23 14:09:05,650][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] River mongodb startup pending
[2015-09-23 14:09:05,656][INFO ][cluster.metadata         ] [Night Nurse] [_river] update_mapping [mongodb] (dynamic)
[2015-09-23 14:09:05,657][TRACE][org.elasticsearch.river.mongodb.StatusChecker] About to start river: mongodb
[2015-09-23 14:09:05,668][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] Starting river mongodb
[2015-09-23 14:09:05,669][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] MongoDB options: secondaryreadpreference [false], drop_collection [false], include_collection [], throttlesize [5000], gridfs [false], filter [null], db [index_of_records], collection [elasticsearch_fmt], script [null], indexing to [index_of_records]/[record_types]
[2015-09-23 14:09:05,669][DEBUG][org.elasticsearch.river.mongodb.MongoDBRiver] Using MongoDB server(s): host [mean-db1], port [27021]
[2015-09-23 14:09:05,676][INFO ][cluster.metadata         ] [Night Nurse] [_river] update_mapping [mongodb] (dynamic)
[2015-09-23 14:09:05,679][INFO ][river.mongodb            ] [Night Nurse] Creating MongoClient for [[mean-db1:27021]]
[2015-09-23 14:09:05,899][WARN ][org.elasticsearch.river.mongodb.MongoDBRiver] Failed to start river mongodbcom.mongodb.MongoException: not authorized for query on local.system.namespaces
        at com.mongodb.QueryResultIterator.throwOnQueryFailure(QueryResultIterator.java:214)
        at com.mongodb.QueryResultIterator.init(QueryResultIterator.java:198)
        at com.mongodb.QueryResultIterator.initFromQueryResponse(QueryResultIterator.java:176)
        at com.mongodb.QueryResultIterator.<init>(QueryResultIterator.java:64)
        at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:86)
        at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:66)
        at com.mongodb.DB.getCollectionNames(DB.java:512)
        at org.elasticsearch.river.mongodb.MongoConfigProvider.ensureIsReplicaSet(MongoConfigProvider.java:50)
        at org.elasticsearch.river.mongodb.MongoConfigProvider.call(MongoConfigProvider.java:42)
        at org.elasticsearch.river.mongodb.MongoDBRiver$1.run(MongoDBRiver.java:259)
        at java.lang.Thread.run(Thread.java:745)
[2015-09-23 14:09:05,902][INFO ][river.mongodb.util       ] setRiverStatus called with mongodb - START_FAILED
[2015-09-23 14:09:08,528][DEBUG][rest.action.mongodb      ] [Night Nurse] uri: /_river/mongodb/list?
[2015-09-23 14:09:08,528][DEBUG][rest.action.mongodb      ] [Night Nurse] action: list
[2015-09-23 14:09:08,530][TRACE][rest.action.mongodb      ] [Night Nurse] totalHits: 1
[2015-09-23 14:09:08,530][TRACE][river.mongodb            ] Parse river settings for mongodb
[2015-09-23 14:09:08,531][TRACE][river.mongodb            ] mongoServersSettings: [{port=27021, host=mean-db1}]
[2015-09-23 14:09:08,531][TRACE][river.mongodb            ] Server: mean-db1 - 27021
[2015-09-23 14:09:08,535][TRACE][rest.action.mongodb      ] [Night Nurse] source: {
  "index": {
    "name": "index_of_records",
    "type": "record_types"
  },
  "mongodb": {
    "db": "index_of_records",
    "servers": [
      {
        "port": "27021",
        "host": "mean-db1"
      }
    ],
    "collection": "elasticsearch_fmt"
  },
  "credentials": [
    {
      "db": "local",
      "auth":"index_of_records",
      "user": "elasticsearch_river",
      "password": "SECRET"
    }
  ],
  "type": "mongodb"
}