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Issues connecting to the UI of Dataiku

Level 1
Issues connecting to the UI of Dataiku
I have installed dataiku, everything seems to work fine except that when connecting to the UI, the following message appears : "Oops: an unexpected error occured
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NullPointerException
HTTP code: 500, type: java.lang.NullPointerException".

Nginx logs show those errors : " nginx: [alert] could not open error log file: open() "/var/log/nginx/error.log" failed (13: Permission denied)
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/shaker/get_processors_library/ HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/shaker/get_processors_library/", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/shaker/list-custom-formulas-functions HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/shaker/list-custom-formulas-functions", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/shaker/get-expression-syntax HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/shaker/get-expression-syntax", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/datasets/get-types/ HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/datasets/get-types/", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/datasets/get-common-charsets/ HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/datasets/get-common-charsets/", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/datasets/get-format-types/ HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/datasets/get-format-types/", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
2016/04/18 05:13:50 [error] 12211#0: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 10.0.2.15, server: , request: "GET /dip/api/get-configuration HTTP/1.1", upstream: "http://127.0.0.1:65001/dip/api/get-configuration", host: "quickstart.cloudera:65000", referrer: "http://quickstart.cloudera:65000/"
nginx: [alert] could not open error log file: open() "/var/log/nginx/error.log" failed (13: Permission denied)
nginx: [alert] could not open error log file: open() "/var/log/nginx/error.log" failed (13: Permission denied)"

What should I do ?
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3 Replies
Dataiker
Dataiker
You might have a permission error.

You should install and run DSS with the same unix user. More info in the doumenation: http://doc.dataiku.com/dss/latest/installation/new_instance.html

I hope that helps,

Jeremy
Jeremy, Product Manager at Dataiku
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Author
Thank you Jeremy. I'll recheck this tomorrow but if I remember correctly the user for the installation and the running process were the same. I'll give you confirmation when I can.

Kind regards,

Fabien
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Author
Okay, I just figured out the problem. It was a licence issue. I had copied and pasted the licence code into a text document that would serve me as the licence entry at the moment of installation. However, Dataiku wouldn't be able to parse it correctly and wouldn't be able to send the right requests to the server to get the corresponding configuration for the enterprise version of Dataiku.
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