can't use 'local' database through mongos

[kud1]

I get the following output from ES when trying to add a mongodb river to an elasticsearch machine, Could someone tell me what's wrong. My ES version is 1.4.2, river version is 2.0.9, mongodb version is 3.0.4.

[2015-11-24 17:30:30,576][INFO ][cluster.metadata ] [Vibraxas] [_river] creating index, cause [auto(index api)], shards [1]/[1], mappings [datatype_river]
[2015-11-24 17:30:30,670][INFO ][cluster.metadata ] [Vibraxas] [_river] update_mapping datatype_river
[2015-11-24 17:30:30,675][TRACE][org.elasticsearch.river.mongodb.MongoDBRiver] Initializing river : [datatype_river]
[2015-11-24 17:30:30,676][TRACE][river.mongodb ] Parse river settings for datatype_river
[2015-11-24 17:30:30,676][TRACE][river.mongodb ] mongoServersSettings: [{port=30000, host=10.105.50.73}, {port=30000, host=10.148.68.159}]
[2015-11-24 17:30:30,676][TRACE][river.mongodb ] Server: 10.105.50.73 - 30000
[2015-11-24 17:30:30,676][TRACE][river.mongodb ] Server: 10.148.68.159 - 30000
[2015-11-24 17:30:30,676][TRACE][river.mongodb ] mongoOptionsSettings: {secondary_read_preference=true}
[2015-11-24 17:30:30,678][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] MongoDB River Plugin - version[2.0.9] - hash[73ddea5] - time[2015-04-06T21:16:46Z]
[2015-11-24 17:30:30,678][INFO ][river.mongodb.util ] setRiverStatus called with datatype_river - RUNNING
[2015-11-24 17:30:30,686][INFO ][cluster.metadata ] [Vibraxas] [_river] update_mapping datatype_river
[2015-11-24 17:30:30,688][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] River datatype_river startup pending
[2015-11-24 17:30:30,689][TRACE][org.elasticsearch.river.mongodb.StatusChecker] About to start river: datatype_river
[2015-11-24 17:30:30,689][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] Starting river datatype_river
[2015-11-24 17:30:30,690][INFO ][org.elasticsearch.river.mongodb.MongoDBRiver] MongoDB options: secondaryreadpreference [true], drop_collection [false], include_collection [], throttlesize [5000], gridfs [false], filter [null], db [pomdev], collection [datatype], script [null], indexing to [pomdev]/[datatype]
[2015-11-24 17:30:30,690][DEBUG][org.elasticsearch.river.mongodb.MongoDBRiver] Using MongoDB server(s): host [10.105.50.73], port [30000]
[2015-11-24 17:30:30,690][DEBUG][org.elasticsearch.river.mongodb.MongoDBRiver] Using MongoDB server(s): host [10.148.68.159], port [30000]
[2015-11-24 17:30:30,713][INFO ][cluster.metadata ] [Vibraxas] [pomdev] creating index, cause [api], shards [5]/[1], mappings []
[2015-11-24 17:30:30,826][TRACE][org.elasticsearch.river.mongodb.MongoConfigProvider] Found admin database
[2015-11-24 17:30:30,827][TRACE][org.elasticsearch.river.mongodb.MongoConfigProvider] About to execute: { "serverStatus" : 1 , "asserts" : 0 , "backgroundFlushing" : 0 , "connections" : 0 , "cursors" : 0 , "dur" : 0 , "extra_info" : 0 , "globalLock" : 0 , "indexCounters" : 0 , "locks" : 0 , "metrics" : 0 , "network" : 0 , "opcounters" : 0 , "opcountersRepl" : 0 , "recordStats" : 0 , "repl" : 0}
[2015-11-24 17:30:30,874][INFO ][cluster.metadata ] [Vibraxas] [_river] update_mapping datatype_river
[2015-11-24 17:30:31,268][WARN ][org.elasticsearch.river.mongodb.MongoDBRiver] Failed to start river datatype_river
com.mongodb.CommandFailureException: { "serverUsed" : "10.105.50.73:30000" , "$err" : "can't use 'local' database through mongos" , "code" : 13644}
at com.mongodb.CommandResult.getException(CommandResult.java:76)
at com.mongodb.CommandResult.throwOnError(CommandResult.java:140)
at com.mongodb.DBPort$SaslAuthenticator.authenticate(DBPort.java:899)
at com.mongodb.DBPort.authenticate(DBPort.java:432)
at com.mongodb.DBPort.checkAuth(DBPort.java:443)
at com.mongodb.DBTCPConnector.innerCall(DBTCPConnector.java:289)
at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:269)
at com.mongodb.DBCollectionImpl.find(DBCollectionImpl.java:84)
at com.mongodb.DB.command(DB.java:320)
at com.mongodb.DB.command(DB.java:299)
at com.mongodb.DB.command(DB.java:388)
at org.elasticsearch.river.mongodb.MongoConfigProvider.isMongos(MongoConfigProvider.java:90)
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)
[2015-11-24 17:30:31,268][INFO ][river.mongodb.util ] setRiverStatus called with datatype_river - START_FAILED