Created question in FIWARE Q/A platform on 04-02-2015 at 00:02
Please, ANSWER this question AT http://stackoverflow.com/questions/28310863/fiware-cygnus-to-cosmos-i-can-not-upload-data-to-hdfs

Question:
Fiware - Cygnus to Cosmos, I can not upload data to HDFS

Description:
I've got an Orion instance with Cygnus, subcription and notify work fine but I can not send files to cosmos.lab.fi-ware.org from my instance.

[ERROR - es.tid.fiware.orionco nnectors.cosmosinjector.OrionHDFSSink.start(OrionHDFSSink.java:108)] Connection to http://130.206.80.46:14000 refused

My cygnus.conf :

1. APACHE_FLUME_HOME/conf/cygnus.conf
2. The next tree fields set the sources, sinks and channels used by Cygnus. You could use different names than the
3. ones suggested below, but in that case make sure you keep coherence in properties names along the configuration file.
4. Regarding sinks, you can use multiple ones at the same time; the only requirement is to provide a channel for each
5. one of them (this example shows how to configure 3 sinks at the same time).
   cygnusagent.sources = http-source
   cygnusagent.sinks = hdfs-sink
   cygnusagent.channels = hdfs-channel
   #=============================================
6. source configuration
7. channel name where to write the notification events
   cygnusagent.sources.http-source.channels = hdfs-channel
8. source class, must not be changed
   cygnusagent.sources.http-source.type = org.apache.flume.source.http.HTTPSource
9. listening port the Flume source will use for receiving incoming notifications
   cygnusagent.sources.http-source.port = 5050
10. Flume handler that will parse the notifications, must not be changed
    cygnusagent.sources.http-source.handler =
    es.tid.fiware.fiwareconnectors.cygnus.handlers.OrionRestHandler
11. URL target
    cygnusagent.sources.http-source.handler.notification_target = /notify
12. Default organization (organization semantic depend on the persistence sink)
    cygnusagent.sources.http-source.handler.default_organization = org42
13. ============================================
14. OrionHDFSSink configuration
15. channel name from where to read notification events
    cygnusagent.sinks.hdfs-sink.channel = hdfs-channel
16. sink class, must not be changed
    cygnusagent.sinks.hdfs-sink.type =
    es.tid.fiware.fiwareconnectors.cygnus.sinks.OrionHDFSSink
17. The FQDN/IP address of the Cosmos deployment where the notification events will be persisted
    cygnusagent.sinks.hdfs-sink.cosmos_host = 130.206.80.46
18. port of the Cosmos service listening for persistence operations; 14000 for httpfs, 50070 for webhdfs and free choice for inifinty
    cygnusagent.sinks.hdfs-sink.cosmos_port = 14000
19. default username allowed to write in HDFS
    cygnusagent.sinks.hdfs-sink.cosmos_default_username = myUsername
20. default password for the default username
    cygnusagent.sinks.hdfs-sink.cosmos_default_password = **********
21. HDFS backend type (webhdfs, httpfs or infinity)
    cygnusagent.sinks.hdfs-sink.hdfs_api = httpfs
22. how the attributes are stored, either per row either per column (row, column)
    cygnusagent.sinks.hdfs-sink.attr_persistence = column
23. prefix for the database and table names, empty if no prefix is desired
    cygnusagent.sinks.hdfs-sink.naming_prefix =
24. Hive port for Hive external table provisioning
    cygnusagent.sinks.hdfs-sink.hive_port = 10000
    #=============================================
25. hdfs-channel configuration
26. channel type (must not be changed)
    cygnusagent.channels.hdfs-channel.type = memory
27. capacity of the channel
    cygnusagent.channels.hdfs-channel.capacity = 1000
28. amount of bytes that can be sent per transaction
    cygnusagent.channels.hdfs-channel.transactionCapacity = 100

Error log :

2015-02-04 22:52:28,627 (lifecycleSupervisor-1-1)
[INFO - es.tid.fiware.orionconnectors.cosmosinjector.hdfs.HttpFSBackend.createDir(HttpFSBackend.java:68)]
HttpFS operation: PUT 130.206.80.46:14000/webhdfs/v1/user/maxime.mularz/4planet/?op=mkdirs&user.name=maxime.mularz HTTP/1.1
2015-02-04 22:53:31,690 (lifecycleSupervisor-1-1)
[ERROR -.tid.fiware.orionconnectors.cosmosinjector.OrionHDFSSink.start(OrionHDFSSink.java:108)]
Connection to http://130.206.80.46:14000 refused
2015-02-04 22:56:02,182 (SinkRunner-PollingRunner-DefaultSinkProcessor)
[INFO - es.tid.fiware.orionconnectors.cosmosinjector.OrionHDFSSink.persist(OrionHDFSSink.java:212)]
Persisting data. File: Room1-Room-temperature-float.txt, Data: 2015- 02-04T22:56:02.182|1423086962|Room1|Room|temperature|float|90)
2015-02-04 22:56:02,183 (SinkRunner-PollingRunner-DefaultSinkProcessor)
[INFO - es.tid.fiware.orionconnectors.cosmosinjector.hdfs.HttpFSBackend.exists(HttpFSBackend.java:158)]
HttpFS operation: GET 130.206.80.46:14000/webhdfs/v1/user/maxime.mularz/4planet/Room1-Room-temperature-float.txt?op=getfilestatus&user.name=maxime.mularz HTTP/1.1

Thanks in advance.