Known Issues in Zeppelin

Known issues identified in Cloudera Runtime 7.1.9 SP1 CHF 6

The following known issues were identified in this release:

Known issues identified before Cloudera Runtime 7.1.9 SP1 CHF 6

CDPD-60489: Jackson-dataformat-yaml 2.12.7 and Snakeyaml 2.0 are not compatible.

You must not use Jackson-dataformat-yaml through the platform for YAML parsing.

BUG-125263: Zeppelin service move fails on clusters upgraded from HDP3.1.5

Resolve the circular symlink issue on the Zeppelin node by linking the conf directory to a new directory under /etc/zeppelin:

• # mkdir -p /etc/zeppelin/<version>/0

• # rm /usr/hdp/<version>/zeppelin/conf

• # ln -s /etc/zeppelin/<version>/0 /usr/hdp/<version>/zeppelin/conf

Where version is the HDP version. For example, 7.1.x-yyy. Restart the Zeppelin server in Ambari.

CDPD-3090: Due to a configuration typo, functionality involving notebook repositories does not work

Due to a missing closing brace, access to the notebook repositories API is blocked by default.

From the CDP Management Console, go to Cloudera Manager for the cluster running Zeppelin. On the Zeppelin configuration page (Zeppelin service > Configuration), enter shiro urls in the Search field, and then add the missing closing brace to the notebook-repositories URL, as follows:

/api/notebook-repositories/** = authc, roles[{{zeppelin_admin_group}}]

Click Save Changes, and restart the Zeppelin service.

CDPD-2406: Logout button does not work

Clicking the Logout button in the Zeppelin UI logs you out, but then immediately logs you back in using SSO.

Close the browser.

OPSAPS-59802: Zeppelin and Livy roles should be co-located on the same host.

When installing or upgrading to CDP Private Cloud Base, you must co-locate all Zeppelin and Livy roles on the same cluster host due to an issue with certificate generation.