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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

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FIWARE Cygnus -> cartodb sinks.NGSISink: Persistence error, 400 Bad request

I'm trying to connect cygnus (1.4.0_SNAPSHOT) to cartodb. I run it locally, and I use a script to send a notification to cygnus. The script runs Ok, but cygnus says: ERROR sinks.NGSISink: Persistence error (The query 'INSERT INTO…
Javi Carnero
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Can't install cygnus-ngsi via Docker

I am trying to install cygnus-ngsi, following this guide. While installing via Docker, I get the following error: INFO: Apache domain INFO: URL MAVEN…
McMutton
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Connect Context Broker with mysql

How to store data in mysql using OrionContext broker and Cygnus? I installed the image: orion-PSB-image-R5.2. But I do not know where to configure Orion. Should I install base_centos_6 and then install ContextBroker and Cygnus? Fiware documentation…
Pedro Wences Olguin
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Problems for installing fiware-cygnus

I have problems for installing cygnus for testing purposes I already installed it weeks ago, and it worked until I reset the OS installation of my pc Right now I have this error during…
B. Diop
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How to store complex context attributes in CKAN with Cygnus

Currently I have configured a solution with Fiware-Orion + Fiware-Cygnus + CKAN. I have the following question: Context attributes are always stored by type, value, and metadata; in row mode, as wel as in column mode. However, I am using more…
Rian Wouters
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How to Check if dependencies in Fiware Cygnus are in cygnus.jar

Concerning the Fiware Cygnus installation. At the end of the installation process there is a list with required dependencies, Link. It is neccesarry to check if those dependencies are included in the cygnus.jar file. How can I check if those…
Mchoeti
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cygnus mongo sink and meta data storing

I tried to stored this meta data entity but seems like cygnus is only storing entity data no meta data was stored in the data base. Here is how I update my entity using NGSI v1 updateContext { "contextElements": [ { "type":…
sabrina2020
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cygnus and NGSI v2 suport?

Does cygnus supports NGSI v2 specifications? I tried to do subscriptions following the NGSI v2 format but it is not working. Thanks in advance for your help.
sabrina2020
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Unable to update FIWARE cygnus

I am trying to update cygnus to the last version. My curent version is 0.13. when I try to install cygnus-common and cygnus-ngsi I got the error no package is available: $ sudo yum install cygnus-common Loaded plugins: fastestmirror Fiware …
sabrina2020
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Fi-ware hadoop ,not running hadoop "hello world" -> word count

I'm trying get working a hadoop hello world code that is 100% based on wordcount, but the fiware platform returns a error while I'm trying to run this code as a job with his rest api. The following code just runs fine in my private hadoop cluster…
Alex B.
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Cygnus java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.interceptors.GroupingInterceptor$Builder

Azure VM running Ubuntu Trusty. When trying to test Cygnus I get an exception java.lang.ClassNotFoundException: com.telefonica.iot.cygnus.interceptors.GroupingInterceptor$Builder Below is the full output from the command. $…
cyclic
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Packaging cygnus-common results in an empty jar

I'm trying to install cygnus-common following this guide but the creation of the cygnus-common jar (incl. dependencies) always results in an empty jar. Apache-Flume installed without any issues. I've tried increasing the memory for the Maven JVM as…
cyclic
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how to compile cygnus 1.1.0 from sources and update cygnus 0.13?

I follow the guide doing this steps: git clone https://github.com/telefonicaid/fiware-cygnus.git cd fiware-cygnus/cygnus-common mvn clean compile exec:exec assembly:single cp target/cygnus-common-1.1.0-jar-with-dependencies.jar…
Mario Corral
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Fiware: Can we use cygnus on Raspberry Pi

Can we install cygnus on RaspberryPi? Thinking of using it with Cepheus to add persistance on the gateway level. Thanks in advance for your help!
sabrina2020
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fiware cygnus channels are full

I’ve checked the Cygnus logs in the morning and see these channel errors. It seems that ckan-channel is full and can’t continue the transactions. What do you suggest us for this error? 16/06/01 08:11:58 WARN http.HTTPSource: Error appending event…
dmtzz
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