Since enabling Security on the Hadoop cluster via Ambari, I’m able to authenticate to all the services I’ve tried but I’m seeing this error in the Ambari logs every 30s or so. Not sure what’s causing it…
the Ambari host is not collocated with the HDP Cluster, it is on a separate host.
18:29:40,965 WARN [pool-1-thread-15] RequestTargetAuthentication:88 - NEGOTIATE authentication error: No valid credentials provided (Mechanism level: No valid credentials provided (Mechanism level: Attempt to obtain new INITIATE credentials failed! (null)))
18:29:40,982 ERROR [pool-1-thread-15] AppCookieManager:122 - SPNego authentication failed, can not get hadoop.auth cookie for URL: http://ldevawshdp0001.cedargatepartners.pvc:8744/api/v1/cluster/summary