question Re: Ranger 'test connection' for Atlas fails in Support Questions

Ranger 'test connection' for Atlas fails

teixeira_javier — Sun, 18 Aug 2019 12:25:58 GMT

I'm having problems integrating Ranger and Atlas in a clean HDP 2.5 environment. Ranger sync Atlas policies and Atlas is auditing, but when I click on "test connection" from the Ranger Atlas Repo, the test fails.

The log /var/log/ranger/admin/xa_portal.log shows that there is a missing dependency in Ranger.

To fix it I copied the ranger-atlas.plugin-VERSION.jar to the lib folder of Ranger.

cp /usr/hdp/2.5.0.0-1245/atlas/libext/ranger-atlas-plugin-impl/ranger-atlas-plugin-0.6.0.2.5.0.0-1245.jar /usr/hdp/current/ranger-admin/ews/lib

After that, the error changes and now i'm getting a ClassCastException that I don't know how to fix it. Anyone knows how to fix it or has passed the "test connection" for the Ranger Atlas plugin.

Thanks in advanced 🙂

Re: Ranger 'test connection' for Atlas fails

aervits — Wed, 01 Feb 2017 20:14:14 GMT

Do you have all of the clients installed on the host? Check the host page and confirm. What is the output of the following command?

hdp-select atlas
hdp-select ranger

Re: Ranger 'test connection' for Atlas fails

vperiasamy — Thu, 02 Feb 2017 02:34:14 GMT

https://issues.apache.org/jira/browse/RANGER-1271 might be related.

Re: Ranger 'test connection' for Atlas fails

rmani — Thu, 02 Feb 2017 03:12:46 GMT

@Javier Teixeira Quevedo

Also please check in ranger install folder /usr/hdp/2.XXXX/ranger-admin/ews/webapp/WEB-INF/classes/ranger-plugins , atlas/ranger-atlas-plugin.*.jar is present.

This is same plugin jar which is part of atlas ranger plugin install.

SOLUTION :

cp /usr/hdp/2.5.0.0-1245/atlas/libext/ranger-atlas-plugin-impl/ranger-atlas-plugin-0.6.0.2.5.0.0-1245.jar /usr/hdp/2.5.0.0-1245/ranger-admin/ews/webapp/WEB-INF/classes/ranger-plugins/atlas folder

and not to /usr/hdp/2.5.0.0-1245/ranger-admin/ews/lib folder

Re: Ranger 'test connection' for Atlas fails

teixeira_javier — Sun, 18 Aug 2019 12:25:44 GMT

You are right, the atlas folder is missing as the below screenshot shows.

Executing below commands and restarting Ranger service after it, the "test connection" works.

cd /usr/hdp/2.5.0.0-1245/ranger-admin/ews/webapp/WEB-INF/classes/ranger-plugins
mkdir atlas
cp /usr/hdp/2.5.0.0-1245/atlas/libext/ranger-atlas-plugin-impl/ranger-atlas-plugin-0.6.0.2.5.0.0-1245.jar atlas/
chown -R ranger:ranger atlas

Thanks @Ramesh Mani 🙂

Re: Ranger 'test connection' for Atlas fails

teixeira_javier — Thu, 02 Feb 2017 16:02:55 GMT

Thanks, but bug RANGER-1271 is related with Ranger 0.7 and HDP 2.5 include Ranger 0.6

Re: Ranger 'test connection' for Atlas fails

teixeira_javier — Thu, 02 Feb 2017 16:04:49 GMT

Yes, all clients are installing on the host