Falcon fails to renew kerberos ticket

[#1]

Short Description:

This article will help to renew kerberos ticket with Falcon.

Article

It has been seen that Falcon server fails to perform operations after kerberos credentials expire and following exception occur.

Caused by: org.apache.hadoop.security.authentication.client.AuthenticationException: GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)

To solve this issue, we must set following parameter in Falcon startup.properties through ambari-ui to revalidate kerberos credentials. Value for this properties is in seconds.

1. Stop Falcon server
2. Set parameter : *.falcon.service.authentication.token.validity=<value in seconds>
3. Start Falcon server

Note: This article is for version greater than HDP-2.5.* .