Year: <span>2020</span>

Year: 2020

mapreduce.job.acl-view-job does not apply to Oozie Launcher job in CDH6

CDH users commonly use YARN setting mapreduce.job.acl-view-job to control which users have access to view YARN application logs through Resource Manager or JobHistory Server web UI. If you have below setting under CM > YARN > Configuration It will allow “user2” to be able to view all MapReduce Job logs …


“Request is a replay (34)” error on HiveServer2 Web UI

After a CDH cluster is enabled with Kerberos, by default, HiveServer2’s web UI will also be enabled with SPNEGO, sometimes it will cause HiveServer2’s web UI to reject user’s request with below error: This can happen when Kerberos has detected that user is trying to authenticate twice within a short …


My new Snowflake Blog is now live. I will not be updating this blog anymore but will continue with new contents in the Snowflake world!