Details
-
Type: extRequest
-
Status: Closed
-
Priority: Major
-
Resolution: Done
-
Fix Version/s: 2021
-
Component/s: FIWARE-TECH-HELP
-
Labels:
-
HD-Enabler:Cygnus
Description
Dear FIWARE help desk
We are working at FrontierCities2 MAG2 project but we have some issue with Cygnus GE.
In particular, our idea is to gather data from Orion GE and to push them into postgreSQL and CKAN by using the Cygnus GE.
We installed cygnus v 1.9.0 by means of docker
Regarding CKAN (v 2.8.0) we have the Exception reported below:
"18/07/10 11:04:36 ERROR flume.SinkRunner: Unable to deliver event. Exception follows.
java.lang.IllegalStateException: begin() called when transaction is OPEN!
at com.google.common.base.Preconditions.checkState(Preconditions.java:145)
at org.apache.flume.channel.BasicTransactionSemantics.begin(BasicTransactionSemantics.java:131)
at com.telefonica.iot.cygnus.sinks.NGSISink.processNewBatches(NGSISink.java:482)
at com.telefonica.iot.cygnus.sinks.NGSISink.process(NGSISink.java:370)
at org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
at java.lang.Thread.run(Thread.java:748)"
We tried to find a solution using Google, in particular, we modified the file "agent.conf" to set ckan sink and ckan channel.
But, we have still problems. Indeed, during the update of Orion Context Broker the istance "cygnus-ngsi" start the transaction
to update the data on our ckan platform but the exception reported above.
Instead, regarding postgresql (9.15.13) the istance, before start a transaction, throws this error:
"ERROR sinks.NGSISink: CygnusPersistenceError. -, null. Stack trace: [com.telefonica.iot.cygnus.sinks.NGSIPostgreSQLSink.persistAggregation(NGSIPostgreSQLSink.java:504), com.telefonica.iot.cygnus.sinks.NGSIPostgreSQLSink.persistBatch(NGSIPostgreSQLSink.java:231), com.telefonica.iot.cygnus.sinks.NGSISink.processRollbackedBatches(NGSISink.java:390), com.telefonica.iot.cygnus.sinks.NGSISink.process(NGSISink.java:372), org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68), org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147), java.lang.Thread.run(Thread.java:748)]".
Enclosed I'm sending you our configuration file.
Please, May you help us?
Thank you a lot. Best regards
__________________________________________________________________________________________
You can get more information about our cookies and privacy policies on the following links:
- http://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/FIWARE_Privacy_Policy
- http://forge.fiware.org/plugins/mediawiki/wiki/fiware/index.php/Cookies_Policy_FIWARE
Fiware-lab-help mailing list
Fiware-lab-help@lists.fiware.org
https://lists.fiware.org/listinfo/fiware-lab-help
[Created via e-mail received from: Antonino Galletta <angalletta@unime.it>]
Dear, I've forwarded your ticket to the second level support. In particular you can refer to joaquin.salvachua@upm.es for Cygnus support and to fdelavega@fi.upm.es for CKAN support.