Created question in FIWARE Q/A platform on 18-08-2015 at 16:08
Please, ANSWER this question AT http://stackoverflow.com/questions/32075670/cygnus-not-starting-as-a-service

Question:
Cygnus not starting as a service

Description:
I've been checking other people's questions regarding config files for cygnus, but still I couldn't make mine work.

Starting cygnus with "service cygnus start" fails.

When I try to start the service the log at /var/log/cygnus/cygnus.log says:

Warning: JAVA_HOME is not set!
+ exec /usr/bin/java -Xmx20m -Dflume.log.file=cygnus.log -cp '/usr/cygnus/conf:/usr/cygnus/lib/:/usr/cygnus/plugins.d/cygnus/lib/:/usr/cygnus/plugins.d/cygnus/libext/*' -Djava.library.path= com.telefonica.iot.cygnus.nodes.CygnusApplication -p 8081 -f /usr/cygnus/conf/agent_1.conf -n cygnusagent
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/cygnus/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/cygnus/plugins.d/cygnus/lib/cygnus-0.8.2-jar-with-dependencies.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: ./logs/cygnus.log (No such file or directory)
at java.io.FileOutputStream.openAppend(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:210)
at java.io.FileOutputStream.<init>(FileOutputStream.java:131)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:294)
at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:207)
at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:165)
at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:307)
at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:172)
at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:104)
at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:809)
at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:735)
at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:615)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:502)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:547)
at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:483)
at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:242)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:254)
at org.apache.flume.node.Application.<clinit>(Application.java:58)
Starting an ordered shutdown of Cygnus
Stopping sources
All the channels are empty
Stopping channels
Stopping hdfs-channel (lyfecycle state=START)
Stopping sinks
Stopping hdfs-sink (lyfecycle state=START)

JAVA_HOME is set and I think the issue is with the config files:

agent_1.conf:

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

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

1. source configuration
2. channel name where to write the notification events
   cygnusagent.sources.http-source.channels = hdfs-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 = com.telefonica.iot.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 = def_serv
8. Default service path (service path semantic depends on the persistence sink)
   cygnusagent.sources.http-source.handler.default_service_path = def_servpath
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 gi
11. TimestampInterceptor, do not change
    cygnusagent.sources.http-source.interceptors.ts.type = timestamp
12. GroupinInterceptor, do not change
    cygnusagent.sources.http-source.interceptors.gi.type = com.telefonica.iot.cygnus.interceptors.GroupingInterceptor$Builder
13. Grouping rules for the GroupingInterceptor, 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.gi.grouping_rules_conf_file = /usr/cygnus/conf/grouping_rules.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 = com.telefonica.iot.cygnus.sinks.OrionHDFSSink
5. Comma-separated list of FQDN/IP address regarding the HDFS Namenode endpoints
6. If you are using Kerberos authentication, then the usage of FQDNs instead of IP addresses is mandatory
   cygnusagent.sinks.hdfs-sink.hdfs_host = cosmos.lab.fiware.org
7. port of the HDFS service listening for persistence operations; 14000 for httpfs, 50070 for webhdfs
   cygnusagent.sinks.hdfs-sink.hdfs_port = 14000
8. username allowed to write in HDFS
   cygnusagent.sinks.hdfs-sink.hdfs_username = MYUSERNAME
9. OAuth2 token
   cygnusagent.sinks.hdfs-sink.oauth2_token = MYTOKEN
10. how the attributes are stored, either per row either per column (row, column)
    cygnusagent.sinks.hdfs-sink.attr_persistence = column
11. Hive FQDN/IP address of the Hive server
    cygnusagent.sinks.hdfs-sink.hive_host = cosmos.lab.fiware.org
12. Hive port for Hive external table provisioning
    cygnusagent.sinks.hdfs-sink.hive_port = 10000
13. Kerberos-based authentication enabling
    cygnusagent.sinks.hdfs-sink.krb5_auth = false
14. Kerberos username
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_user = krb5_username
15. Kerberos password
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_password = xxxxxxxxxxxxx
16. Kerberos login file
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_login_conf_file = /usr/cygnus/conf/krb5_login.conf
17. Kerberos configuration file
    cygnusagent.sinks.hdfs-sink.krb5_auth.krb5_conf_file = /usr/cygnus/conf/krb5.conf

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

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

And cygnus_instance_1.conf:

CYGNUS_USER=cygnus

CONFIG_FOLDER=/usr/cygnus/conf

CONFIG_FILE=/usr/cygnus/conf/agent_1.conf

1. Name of the agent. The name of the agent is not trivial, since it is the base for the Flume parameters
2. naming conventions, e.g. it appears in .sources.http-source.channels=...
   AGENT_NAME=cygnusagent

1. Name of the logfile located at /var/log/cygnus.
   LOGFILE_NAME=cygnus.log

1. Administration port. Must be unique per instance
   ADMIN_PORT=8081

1. Polling interval (seconds) for the configuration reloading
   POLLING_INTERVAL=30

I hope it's a simple issue. If more info is needed please let me know.

BTW, I got my token following the instructions on this link.
Isn't there supposed to be a password field for accessing COSMOS global instance? Or is the token enough?

Thank you