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amoghpatel
Silver ⭐️⭐️
amoghpatel
Silver ⭐️⭐️
June 30, 2017

Ambari hive view fails with Usernames not matched error

  • October 5, 2026 at 9:12 AM
  • 1 reply
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PROBLEM:

Changed Ambari from root to non-root user and hiveview doesn't work. Ambari hive view fails with Usernames not matched error. ERROR:

Service 'userhome' check failed:
java.io.IOException: Usernames not matched: name=ambari-server-<cluster_name> != expected=<custom_user>
at sun.reflect.GeneratedConstructorAccessor243.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)

ROOT CAUSE: Configuration issue on Ambari Hive view definition as username doesn't match.

SOLUTION: Navigate to Hive and YARN Configs in Ambari UI and change as below and restart respective services.

A) Custom webhcat-site

webhcat.proxyuser.<AMBARI_SERVER_PRINCIPAL_USER>.groups=*
webhcat.proxyuser.<AMBARI_SERVER_PRINCIPAL_USER>.hosts=*

B) Custom yarn-site

yarn.timeline-service.http-authentication.<AMBARI_SERVER_PRINCIPAL_USER>.groups=*
yarn.timeline-service.http-authentication.<AMBARI_SERVER_PRINCIPAL_USER>.hosts=*
yarn.timeline-service.http-authentication.<AMBARI_SERVER_PRINCIPAL_USER>.users=*

    1 reply

    shyamshaw
    Gold ⭐️
    shyamshaw
    Gold ⭐️
    March 22, 2018

    Hi @apatel can you validate the custom yarn-site properties once again.

    yarn.timeline-service.http-authentication.proxyuser.<AMBARI_SERVER_PRINCIPAL_USER>.groups=*
    yarn.timeline-service.http-authentication.proxyuser.<AMBARI_SERVER_PRINCIPAL_USER>.hosts=*
    yarn.timeline-service.http-authentication.proxyuser.<AMBARI_SERVER_PRINCIPAL_USER>.users=*

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