Created question in FIWARE Q/A platform on 17-07-2015 at 16:07
Please, ANSWER this question AT http://stackoverflow.com/questions/31478049/oauth2-cygnus-and-cosmos-sink-doesnt-seems-to-work

Question:
Oauth2 Cygnus and Cosmos Sink doesn't seems to work

Description:
Since the last update , i haven't been able to upload my data to Cosmos using Cygnus . I am aware that we now need to use Oauth2 token to do it . So i did the request for the token .

curl -k -X POST "https://cosmos.lab.fiware.org:13000/cosmos-auth/v1/token" -H "Content-Type: application/x-www-form-urlencoded" -d "grant_type=password&username=guillaume.jourdain@4planet.eu&password=XXXXX"

I get a token, but then i try to check the token :

curl -X GET "http://cosmos.lab.fiware.org:14000/webhdfs/v1/guillaume.jourdain/hostabee?op=liststatus&user.name=guillaume.jourdain@4planet.eu" -H "X-Auth-Token: TheToken"

and even this :

curl -X GET "http://cosmos.lab.fiware.org:14000/webhdfs/v1/guillaume.jourdain/hostabee?op=liststatus&user.name=guillaume.jourdain" -H "X-Auth-Token: TheToken"

And Everytime , for each of this command and for all the token I Tried i get this :

User token not authorized

Next i tried to put the oauth parameter in my cygnus conf file and this occured everytime :

2015-07-17 16:17:17,797 (lifecycleSupervisor-1-1) [INFO - es.tid.fiware.orionconnectors.cosmosinjector.hdfs.HttpFSBackend.createDir(HttpFSBackend.java:71)] HttpFS response: HTTP/1.1 401 Unauthorized
2015-07-17 16:17:17,798 (lifecycleSupervisor-1-1) [ERROR - es.tid.fiware.orionconnectors.cosmosinjector.OrionHDFSSink.start(OrionHDFSSink.java:108)] The directory could not be created in HDFS. HttpFS response: 401 Unauthorized

So yeah , for the moment i'm kinda stuck . Do you have any information for me to resolve this problem ?

EDIT :

Here's my Cygnus Configuration file , maybe the problem is located here

APACHE_FLUME_HOME/conf/cygnus.conf
orionagent.sources = http-source
orionagent.sinks = hdfs-sink
orionagent.channels = notifications

1. Flume source, must not be changed
   orionagent.sources.http-source.type = org.apache.flume.source.http.HTTPSource
2. channel name where to write the notification events
   orionagent.sources.http-source.channels = notifications
3. listening port the Flume source will use for receiving incoming notifications
   orionagent.sources.http-source.port = 5050
4. Flume handler that will parse the notifications, must not be changed
   orionagent.sources.http-source.handler = com.telefonica.iot.cygnus.handlers.OrionRestHandler
5. regular expression for the orion version the notifications will have in their headers
   orionagent.sources.http-source.handler.orion_version = 0\.23\.*
6. URL target
   orionagent.sources.http-source.handler.notification_target = /notify

1. channel name from where to read notification events
   orionagent.sinks.hdfs-sink.channel = notifications
2. Flume sink that will process and persist in HDFS the notification events, must not be changed
   orionagent.sinks.hdfs-sink.type = com.telefonica.iot.cygnus.sinks.OrionHDFSSink
3. IP address of the Cosmos deployment where the notification events will be persisted
   orionagent.sinks.hdfs-sink.cosmos_host = 130.206.80.46
4. port of the Cosmos service listening for persistence operations; 14000 for httpfs, 50070 for webhdfs and free choice for inifinty
   orionagent.sinks.hdfs-sink.cosmos_port = 14000
5. username allowed to write in HDFS (/user/myusername)
   orionagent.sinks.hdfs-sink.cosmos_username = guillaume.jourdain
6. dataset where to persist the data (/user/myusername/mydataset)

orionagent.sinks.hdfs-sink.cosmos_password = XXXXX
orionagent.sinks.hdfs-sink.cosmos_dataset = hostABee
orionagent.sinks.hdfs-sink.attr_persistence = column

orionagent.sinks.hdfs-sink.hive_host = 130.206.80.46
orionagent.sinks.hdfs-sink.hive_port = 10000
orionagent.sinks.hdfs-sink.oauth2_token = TheTOKEN

1. HDFS backend type (webhdfs, httpfs or infinity)
   orionagent.sinks.hdfs-sink.hdfs_api = webhdfs

1. channel name
   orionagent.channels.notifications.type = memory
2. capacity of the channel
   orionagent.channels.notifications.capacity = 1000
3. amount of bytes that can be sent per transaction
   orionagent.channels.notifications.transactionCapacity = 100

Now I get this error (and others). The sink and the handlers does'nt seems to be found

2015-07-27 14:27:10,562 (conf-file-poller-0) [INFO - org.apache.flume.sink.DefaultSinkFactory.create(DefaultSinkFactory.java:40)] Creating instance of sink: hdfs-sink, type: com.telefonica.iot.cygnus.sinks.OrionHDFSSink
2015-07-27 14:27:10,562 (conf-file-poller-0) [ERROR - org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:142)] Failed to load configuration data. Exception follows.
org.apache.flume.FlumeException: Unable to load sink type: com.telefonica.iot.cygnus.sinks.OrionHDFSSink, class: com.telefonica.iot.cygnus.sinks.OrionHDFSSink
at org.apache.flume.sink.DefaultSinkFactory.getClass(DefaultSinkFactory.java:69)
at org.apache.flume.sink.DefaultSinkFactory.create(DefaultSinkFactory.java:41)
at org.apache.flume.node.AbstractConfigurationProvider.loadSinks(AbstractConfigurationProvider.java:415)
at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:103)
at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:165)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:701)
Caused by: java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.sinks.OrionHDFSSink
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at org.apache.flume.sink.DefaultSinkFactory.getClass(DefaultSinkFactory.java:67)
... 12 more

Thank you for reading .