Created question in FIWARE Q/A platform on 17-03-2015 at 13:03
Please, ANSWER this question AT http://stackoverflow.com/questions/29099334/cygnus-0-7-1-does-not-create-tables-mysql-and-hdfs

Question:
Cygnus 0.7.1 does not create tables (MySQL and HDFS)

Description:
I've installed (from source) cygnus 0.7.1, and after configuring it (MySQL and HDFS sinks) I can start it without problems. When I subscribe cygnus to a orion context, it receives the information ok, but there is a problem with MySQL and HDFS. This is the log:

15/03/17 13:58:52 INFO handlers.OrionRestHandler: Starting transaction (1426597123-891-0000000000)
15/03/17 13:58:52 INFO handlers.OrionRestHandler: Received data ({ "subscriptionId" : "5508250c1860a36e55240c84", "originator" : "localhost", "contextResponses" : [ { "contextElement" : { "type" : "ubk-temp", "isPattern" : "false", "id" : "ubk:temp:1", "attributes" : [

] }, "statusCode" :

} ]})
15/03/17 13:58:52 INFO handlers.OrionRestHandler: Event put in the channel (id=1549700267, ttl=10)
15/03/17 13:58:52 INFO sinks.OrionSink: Event got from the channel (id=1549700267, headers=

, bodyLength=462)
15/03/17 13:58:52 INFO sinks.OrionMySQLSink: [mysql-sink] Persisting data at OrionMySQLSink. Database: ubikwa, Table: ubktemp_ubk_temp_1_ubk-temp, Timestamp: 2015-03-17T13:58:52.511, Data (attrs):

, (metadata):

15/03/17 13:58:53 INFO sinks.OrionHDFSSink: [hdfs-sink] Persisting data at OrionHDFSSink. HDFS file (ubikwa/ubktemp/ubk_temp_1_ubk-temp/ubk_temp_1_ubk-temp.txt), Data (

)
15/03/17 13:58:53 WARN sinks.OrionSink: Bad context data (Table 'ubikwa.ubktemp_ubk_temp_1_ubk-temp' doesn't exist)
15/03/17 13:58:53 INFO sinks.OrionSink: Finishing transaction (1426597123-891-0000000000)

The MySQL sink does not raise any errors but no tables are created. And the HDFS sink seems to be unable to create the files. I previously installed cygnus 0.6 and it worked with the same configuration.

Edit:

Here its is my configuration:

cygnusagent.sources = http-source
cygnusagent.sinks = hdfs-sink mysql-sink
cygnusagent.channels = hdfs-channel mysql-channel

#=============================================

1. source configuration
2. channel name where to write the notification events
   cygnusagent.sources.http-source.channels = hdfs-channel mysql-channel
3. source class, must not be changed
   cygnusagent.sources.http-source.type = org.apache.flume.source.http.HTTPSource
4. listening port the Flume source will use for receiving incoming notifications
   cygnusagent.sources.http-source.port = 5050
5. Flume handler that will parse the notifications, must not be changed
   cygnusagent.sources.http-source.handler = es.tid.fiware.fiwareconnectors.cygnus.handlers.OrionRestHandler
6. URL target
   cygnusagent.sources.http-source.handler.notification_target = /notify
7. Default service (service semantic depends on the persistence sink)
   cygnusagent.sources.http-source.handler.default_service = ubikwa
8. Default service path (service path semantic depends on the persistence sink)
   cygnusagent.sources.http-source.handler.default_service_path = ubktemp
9. Number of channel re-injection retries before a Flume event is definitely discarded (-1 means infinite retries)
   cygnusagent.sources.http-source.handler.events_ttl = 10
10. Source interceptors, do not change
    cygnusagent.sources.http-source.interceptors = ts de
11. Timestamp interceptor, do not change
    cygnusagent.sources.http-source.interceptors.ts.type = timestamp
12. Destination extractor interceptor, do not change
    cygnusagent.sources.http-source.interceptors.de.type = es.tid.fiware.fiwareconnectors.cygnus.interceptors.DestinationExtractor$Builder
13. Matching table for the destination extractor interceptor, put the right absolute path to the file if necessary
14. See the doc/design/interceptors document for more details
    cygnusagent.sources.http-source.interceptors.de.matching_table = /opt/cygnus/conf/matching_table.conf

1. ============================================
2. OrionHDFSSink configuration
3. channel name from where to read notification events
   cygnusagent.sinks.hdfs-sink.channel = hdfs-channel
4. sink class, must not be changed
   cygnusagent.sinks.hdfs-sink.type = es.tid.fiware.fiwareconnectors.cygnus.sinks.OrionHDFSSink
5. Comma-separated list of FQDN/IP address regarding the Cosmos Namenode endpoints
6. If you are using Kerberos authentication, then the usage of FQDNs instead of IP addresses is mandatory
   cygnusagent.sinks.hdfs-sink.cosmos_host = 130.206.80.46
7. 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
8. default username allowed to write in HDFS
   cygnusagent.sinks.hdfs-sink.cosmos_default_username = ***
9. default password for the default username
   cygnusagent.sinks.hdfs-sink.cosmos_default_password = ***
10. HDFS backend type (webhdfs, httpfs or infinity)
    cygnusagent.sinks.hdfs-sink.hdfs_api = httpfs
11. how the attributes are stored, either per row either per column (row, column)
    cygnusagent.sinks.hdfs-sink.attr_persistence = column
12. Hive FQDN/IP address of the Hive server
    cygnusagent.sinks.hdfs-sink.hive_host = 130.206.80.46
13. Hive port for Hive external table provisioning
    cygnusagent.sinks.hdfs-sink.hive_port = 10000
14. Kerberos-based authentication enabling
    cygnusagent.sinks.hdfs-sink.krb5_auth = false
15. Kerberos username
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_user = krb5_username
16. Kerberos password
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_password = xxxxxxxxxxxxx
17. Kerberos login file
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_login_conf_file = /usr/cygnus/conf/krb5_login.conf
18. Kerberos configuration file
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_conf_file = /usr/cygnus/conf/krb5.conf

1. ============================================
2. OrionMySQLSink configuration
3. channel name from where to read notification events
   cygnusagent.sinks.mysql-sink.channel = mysql-channel
4. sink class, must not be changed
   cygnusagent.sinks.mysql-sink.type = es.tid.fiware.fiwareconnectors.cygnus.sinks.OrionMySQLSink
5. the FQDN/IP address where the MySQL server runs
   cygnusagent.sinks.mysql-sink.mysql_host = 127.0.0.1
6. the port where the MySQL server listes for incomming connections
   cygnusagent.sinks.mysql-sink.mysql_port = 3306
7. a valid user in the MySQL server
   cygnusagent.sinks.mysql-sink.mysql_username = ***
8. password for the user above
   cygnusagent.sinks.mysql-sink.mysql_password = ***
9. how the attributes are stored, either per row either per column (row, column)
   cygnusagent.sinks.mysql-sink.attr_persistence = column

#=============================================

1. hdfs-channel configuration
2. channel type (must not be changed)
   cygnusagent.channels.hdfs-channel.type = memory
3. capacity of the channel
   cygnusagent.channels.hdfs-channel.capacity = 1000
4. amount of bytes that can be sent per transaction
   cygnusagent.channels.hdfs-channel.transactionCapacity = 100

#=============================================

1. mysql-channel configuration
2. channel type (must not be changed)
   cygnusagent.channels.mysql-channel.type = memory
3. capacity of the channel
   cygnusagent.channels.mysql-channel.capacity = 1000
4. amount of bytes that can be sent per transaction
   cygnusagent.channels.mysql-channel.transactionCapacity = 100

Any hints?

Thanks