Hi All,

I am trying to setup and understand Cygnus. But I am facing issue during installation.
I followed below given steps.

1. Install Cygnus using Docker (docker run -d -p 5050:5050 -p 8081:8081 fiware/cygnus-common)

2. Executed version command (curl http://172.17.0.2:8081/v1/version) which gave following response

a.

3. Login into Cygnus container using command docker exec -it <ContainerId> /bin/bash

4. Created new file named "agent_mysql.conf" in "/opt/apache-flume/conf/" folder. Please see attached file for configuration details.

5. Changed "cygnus-entrypoint.sh" file in / (root) folder and added following command by removing existing one.

a. $

/bin/cygnus-flume-ng agent --conf $

/agent_mysql.conf -n cygnus-ngsi -p $

-Dflume.root.logger=$

,$

-Dfile.encoding=UTF-8

6. Exited Docker container and came back to Ubuntu.

7. Stop and restart Docker container.

8. And I am getting following errors in logs

Please check and let me know what am I doing wrong? Appreciate your help.

n$AgentConfiguration[1016] : Processing:mysql-sink
time=2018-04-30T14:24:00.807Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=validateConfiguration | msg=org.apache.flume.conf.FlumeConfiguration[140] : Post-validation flume configuration contains configuration for agents: [cygnus-ngsi]
time=2018-04-30T14:24:00.808Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=loadChannels | msg=org.apache.flume.node.AbstractConfigurationProvider[150] : Creating channels
time=2018-04-30T14:24:00.816Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=create | msg=org.apache.flume.channel.DefaultChannelFactory[40] : Creating instance of channel mysql-channel type memory
time=2018-04-30T14:24:00.825Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=loadChannels | msg=org.apache.flume.node.AbstractConfigurationProvider[205] : Created channel mysql-channel
time=2018-04-30T14:24:00.832Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=create | msg=org.apache.flume.source.DefaultSourceFactory[39] : Creating instance of source http-source, type org.apache.flume.source.http.HTTPSource
time=2018-04-30T14:24:00.836Z | lvl=ERROR | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=configure | msg=org.apache.flume.source.http.HTTPSource[113] : Error while configuring HTTPSource. Exception follows.
java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.handlers.NGSIRestHandler
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.flume.source.http.HTTPSource.configure(HTTPSource.java:102)
at org.apache.flume.conf.Configurables.configure(Configurables.java:41)
at org.apache.flume.node.AbstractConfigurationProvider.loadSources(AbstractConfigurationProvider.java:331)
at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:102)
at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
time=2018-04-30T14:24:00.840Z | lvl=ERROR | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=loadSources | msg=org.apache.flume.node.AbstractConfigurationProvider[366] : Source http-source has been removed due to an error during configuration
java.lang.RuntimeException: java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.handlers.NGSIRestHandler
at com.google.common.base.Throwables.propagate(Throwables.java:156)
at org.apache.flume.source.http.HTTPSource.configure(HTTPSource.java:114)
at org.apache.flume.conf.Configurables.configure(Configurables.java:41)
at org.apache.flume.node.AbstractConfigurationProvider.loadSources(AbstractConfigurationProvider.java:331)
at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:102)
at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.handlers.NGSIRestHandler
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.flume.source.http.HTTPSource.configure(HTTPSource.java:102)
... 11 more
time=2018-04-30T14:24:00.841Z | lvl=INFO | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=create | msg=org.apache.flume.sink.DefaultSinkFactory[40] : Creating instance of sink: mysql-sink, type: com.telefonica.iot.cygnus.sinks.NGSIMySQLSink
time=2018-04-30T14:24:00.842Z | lvl=ERROR | corr=N/A | trans=N/A | srv=N/A | subsrv=N/A | comp=cygnus-ngsi | op=run | msg=org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable[142] : Failed to load configuration data. Exception follows.
org.apache.flume.FlumeException: Unable to load sink type: com.telefonica.iot.cygnus.sinks.NGSIMySQLSink, class: com.telefonica.iot.cygnus.sinks.NGSIMySQLSink
at org.apache.flume.sink.DefaultSinkFactory.getClass(DefaultSinkFactory.java:69)
at org.apache.flume.sink.DefaultSinkFactory.create(DefaultSinkFactory.java:41)
at org.apache.flume.node.AbstractConfigurationProvider.loadSinks(AbstractConfigurationProvider.java:415)
at org.apache.flume.node.AbstractConfigurationProvider.getConfiguration(AbstractConfigurationProvider.java:103)
at org.apache.flume.node.PollingPropertiesFileConfigurationProvider$FileWatcherRunnable.run(PollingPropertiesFileConfigurationProvider.java:140)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.sinks.NGSIMySQLSink
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:338)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.flume.sink.DefaultSinkFactory.getClass(DefaultSinkFactory.java:67)
... 11 more

Thanks & Regards,
Krishan Babbar
Technical Architect
IES Internet of Things | Tech Mahindra
Rajiv Gandhi Chandigarh Technology Park, Plot No. 23, Phase 2, Kishangarh, Chandigarh 160101, INDIA

• Office: +91 172 666 8400 Ext. 8352 | Mobile: +91 946 303 0996

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