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Questions tagged [fiware-cygnus]

fiware-cygnus tag refers to the Cygnus connector implementation (FIWARE platform), allowing for Orion context data persistence in an historical way in several different storages such as HDFS, MySQL or CKAN

Cygnus is a data connector within FIWARE platform allowing for Orion context data persistence in an historical way in several different storages such as HDFS, MySQL or CKAN. Cygnus characteristics are:

  • It is based in Apache Flume, expanding the core elements with custom sinks, http handlers, channel selectors and interceptors among others.
  • Smart destination (HDFS file, MySQL table or CKAN resource) extraction based on data properties.
  • Automatic Hive tables creation when using HDFS sinks.
  • Support for multiple persistence models (json-row, json-column, ...)

Home Page: http://catalogue.fiware.org/enablers/publishsubscribe-context-broker-orion-context-broker/documentation (within the Orion Context Broker catalogue entry)

GitHub Page: https://github.com/telefonicaid/fiware-connectors/tree/master/flume

284 questions
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Cygnus shutdown itself

I was doing some system checks in the weekend and saw that Cygnus shutdown itself, but there was no error messages in the log file. Could you please share your ideas with us Francisco? Many thanks Starting an ordered shutdown of Cygnus Stopping…
dmtzz
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Apache Kafka : receiving topics but no data from Fiware Orion Context Broker

I have installed kafka in a new cloud instance, and i want to get data from Fiware Orion Context Broker. I have already done this procedure on my local machine, and it worked well. Now, when i run zookeeper and Kafka on my cloud instance, I…
Charlotte
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Best way to debug Cygnus?

I'm developing a custom Cygnus Sink and I'm looking for the best way to debug it, preferentially with development in a different machine and remote debug.
rnunes
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Orion contextBroker don't notifies correctly when data comes from IoTAgent

I have in the same machine an IoTAgent, an Orion contextBroker, Cygnus and a MySQL database. When I update a value via POST directly to the contextBroker, it is succesfully updated and the onchange subscription raises the notification to cygnus and…
cpuigaei
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Cygnus is updating the wrong table

I have a Cygnus instance running with MySQL sink and I wanted to save every report in the same row, using the same table for every sensor report. So I created the MySql table and configurate Cygnus…
rnunes
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Best FIWare architecture?

We are developing a FiWare city sensor network that: Inside the sensor processes data in real time and publishes their average every N minutes to our server; some server side math to do with those reported averages, which will generate new fields…
rnunes
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cygnus service not starting as a service

I have installed cygnus using RPMs on my CentOS 7.0 , but I can't started as service: [centos@cygnus-mongo ~]$ sudo service cygnus start Starting cygnus (via systemctl): Job for cygnus.service failed. See 'systemctl status cygnus.service' and…
sabrina2020
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Cygnus to CKAN: Possibly the organization already exists in a deleted state

I have Cygnus configured to store all entities coming from Orion to CKAN. When I try to store the information from the entities in http://demo.ckan.org/ everything works fine, organization, dataset and resource are created correctly, but when I try…
Jonatan Santos
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create/update/subscribe pattern : Orion --> cygnus Fiware

I would like to create and then update an entity regularly. And then subscribe to modifications, sending these modifs to my runnning fiware-cygnus handler ( via http notify). Is it possible to use a running orion instance (i.e.…
PhilG
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Orion - cygnus integration

We are trying to integrate Orion, Cygnus and Ckan together. I have followed these steps in order to make this happen: Install and configure Cygnus with the Fiware Ckan info(Cygnus up and running) Login in Ckan and get the API key and configure this…
dmtzz
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cygnus version installation with hadoop 2.6

hello i would like to install cygnus from sources http://fiware-cygnus.readthedocs.org/en/latest/installation_and_administration_guide/install_from_sources/index.html and i have an already hadoop apache 2.6/0 installed. The cygnus pom.xml show…
PhilG
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Why Cygnus not connected to another virtual machine with MongoDB?

Good morning, I have the following set of virtual machines: VM A Generic Enablers Orion and Cygnus IP: 10.10.0.10 VM B MongoDB IP: 10.10.0.17 Cygnus configuration is: /usr/cygnus/conf/cygnus_instance_mongodb.conf ##### # # Configuration file…
Jocari
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Why wont Cygnus receive a subscription on my CentOS 6.7?

I just finished testing the entire thing on my virtual machine environment and now I am trying to launch it on the dedicated server. And now I ran into a completely new issue. First I confirmed that I have both context Broker and centos running (on…
Vrankela
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Can't use attr_persistence column on mysql sink

I'm trying to use the column type with OrionMySQLSink. My agent has this code: cygnusagent.sinks.mysql-sink.type = com.telefonica.iot.cygnus.sinks.OrionMySQLSink cygnusagent.sinks.mysql-sink.channel =…
nyxtez37
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Cygnus 0.10 Docker container

Following the guidelines provided in GITHub, I have tried to get the jar files, but I'm getting the following errors. sudo docker-compose -f ./docker/0.compose.jar-compiler.yml -p cygnus run --rm compiler [INFO] Scanning for projects... [INFO] …
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