Some CDH users had complained that backspace and delete keys do not work anymore in Beeline, Hive CLI and Pig clients after upgrading CDH from 5.3.x to 5.4.x. This is to do with Beeline and Pig were switched to use jline2 from jline, caused some old shell clients behave odd …
This article explains the possible causes when HiveMetastore server (HMS) takes a long time to start up (more than 10 minutes). Every time when Hive is restarted through Cloudera Manager (CM), it takes more than 10 minutes for Hive services to become green and users to be able to use beeline CLI. …
This article explains the possible causes when HMS server takes a long time to start up (more than 10 minutes) The symptom: every time when Hive is restarted through CM, it will take more than 10 minutes for Hive services to become green and users to be able to use …
Another bug identified today in Impala while helping customers solving a weird Impala issue. The problem is that “SHOW COLUMN STATS” command in Impala shows incorrect stats information, either shows “-1” for distinct values or the number is not matching with real distinct values: Identified this is a bug in …
Today, I found a bug in Pig that does not allow user to run Pig to read a table which contains multiple files that have the same schema with different flags. See example below: If you run it in Pig, the following error will be returned: At the time of …
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!