Year: <span>2017</span>

Year: 2017

SparkHistory Server Keeps Crashing With OutOfMemory Error

This article explains what to do when you are unable to start up SparkHistory server which keeps crashing with OutOfMemory errors after using Spark for some time. To confirm that Spark History Server keeps failing with OutOfMemory error on start up, we can check the run time process directory for …


HiveServer2 Failed to Start With “Table/View ‘DBS’ does not exist”

Recently I was dealing with an issue that after user upgraded CDH to 5.12.x, HiveServer2 was unable to start up. Examining the HiveServer2 log we noticed that for some reason HiveServer2 was try to access HiveMetaStore database and returned table does not exist error. See below full stacktrace: If you …


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!