Hive-on-Tez User Interface Known Issues

This topic describes known issues that you should be aware of while troubleshooting.

Installer Configuration Known Issues

If you used Installer version 1.15.0.0 to install the cluster, re-assign the following existing truststore SSL variables with the correct keystore SSL variables:
Existing variables (truststore) Correct variables (keystore)
keystoreFile="/opt/mapr/conf/ssl_truststore" keystoreFile="/opt/mapr/conf/ssl_keystore"
keystorePass="<ssl-truststore-password>"/> keystorePass="<ssl-keystore-password>"/>

Timeline Server Known Issues

(Issue 29538) After an incremental install or rolling upgrade to MapR 6.1, the timeline server does not start. To resolve this issue, add the following entry to /opt/mapr/hadoop/hadoop-2.7.0/etc/hadoop/yarn-env.sh:
export YARN_TIMELINESERVER_OPTS="${YARN_TIMELINESERVER_OPTS} ${MAPR_LOGIN_OPTS}"
To grant administrative privileges to any user(s), modify yarn-site.xml, as shown: 
<property>
  <name>yarn.admin.acl</name>    
  <value><user_name></value>  
</property>
After the yarn.admin.acl property takes effect, the user specified by <user_name> has administrative privileges and access to all jobs.

For example, User-A can access all the jobs owned by User-A, by default. If User-A needs access to jobs owned by other users, administrative privileges can be granted to User-A through the yarn.admin.acl property.

Timeline server (ATS) is out of reach issue

If you get an issue similar to the following example with Tez UI and TLS UI communication (especially on Chrome browser):

Adapter operation failed » Timeline server (ATS) is out of reach. Either it's down, or CORS is not enabled.
Consider configuring Tez UI to HTTPS instead of HTTS. For details, see :Configuring the Tomcat Server.