got error with any widget (table, map, chart), using a REST dataset from orion, despite dataset preview is OK

Question

Using Knowage Version: 7.3.0-S, deployed under docker, with docker-compose.yml from Knowage-Server-Docker github repo

I have a working REST dataset querying an Orion context broker for WeatherObserved entities, meaning, I get results when I use dataset preview function, and a correct fields metadata mapping with the json NGSI entity attributes !

I configured the dataset in a document, and add some widget, table, and map, but I never succeeded having data in widgets

I always get an error :

Unable to load data from dataset meteo OCB direct
Please check dataset & widget config

nothing else reported about the issue, in the logs

however, I can see the request in the Orion context broker logs

can you tell me where I am wrong ?

is there a way to debug the issue and understand what's wrong ?

OK I found the issue

looking in the logs (/home/knowage/apache-tomcat/logs/knowage.log), found it was issue with cache_ds not properly configured

I configured it and all went OK...

the message should be more explicit...

and the error should come into container logs.... !

Comments

Thank you for the debug!
We will try to improve the error messages on that issue.

Thank you and regards!