You mean CDH4 with Apache Hadoop 2.2 ? I dont think falcon version 0.6 is 
compatible with this version of hadoop, as we have started using features from 
Hadoop 2.5.0. But I am not sure if this problem is specific to the hadoop 
version though. Can you share stack trace from the server logs ?

Regards
Srikanth Sundarrajan

> To: [email protected]
> Subject: Usage Question - Falcon 0.6 (CDH 2.2), Falcon UI & user.name
> From: [email protected]
> Date: Tue, 25 Nov 2014 11:35:13 +0000
> 
> Hi,
>  I have falcon installed/running as part of the CDH 2.2 sandbox & am just 
> starting to get hands on & understand how to define feeds, processes & 
> view lineage.
> 
>  I can login to ambari with admin/admin  & then to the falcon UI at 
> http://sandbox.hortonworks.com:15000/ . However at that page, and  if I 
> attempt to look at Data Sets or processes I get an error
> 
> Failed to load data. Error: 400 Param user.name can't be empty 
> 
> This can be remedied by adding &user.name=falcon to the URL, so for 
> example I can view the demo cleanse email process at 
> http://sandbox.hortonworks.com:15000/entity.html?type=PROCESS&id=cleanseEmailProcess&user.name=falcon
>  
> 
> 
> At this point I can view the xml definition of the process and some of the 
> lineage diagrams.
> 
> Is this a known issue with falcon, ambari or the CDH 2.2 image? My intent 
> is to look at the dev tree in any case so if it's fixed post 0.6 I'm happy 
> to start going down that route, I just figured I'd start with a known-good 
> environment first.
> 
> If this isn't the preferred place for this question, apologies. I'll open 
> up a JIRA report if appropriate
> 
> 
> Nigel Jones
> 
> 
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