Hive CLI Prints SLF4J Error to Standard Output

If you have both Hive and Spark running on the same cluster, chances are that Hive CLI will probably produce the following WARNING message upon exit of each session: WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked. WARN: Please see http://www.slf4j.org/codes.html#release for an explanation. Sample full output looks like below: [root@localhost …

Hive Query Failed with Token Renewer Error | Hive on Spark

If you run Hive on Spark on some CDH versions, you might run into issues when Hive is trying to renew HDFS delegation tokens. See below error message (that you can find from HiveServer2 server logs): 2017-06-27 17:04:08,836 INFO org.apache.hive.spark.client.SparkClientImpl: [stderr-redir-1]: 17/06/27 17:04:08 WARN security.UserGroupInformation: PriviledgedActionException as:testuser (auth:PROXY) via hive/example.hadoop.com@REALM.COM …