This is part 5 of my Impala Query Profile Explained series. If you have missed the last 4 parts, please follow the links below: Impala Query Profile Explained – Part 1Impala Query Profile Explained – Part 2Impala Query Profile Explained – Part 3Impala Query Profile Explained – Part 4 Thanks …
In the last episode, Part 3 of the series, I used an example to go through the Impala Profile in more detail. In this part of the series, I will use a real life production system Impala Profile, explain the steps I used to read through the Profile when given …
It is common that we need to convert a string representation of date/time into timestamp value, and we know that there are lots of different formats to represent date/time using string. This blog post will focus on the time that contains “AM/PM” while converting to Timestamp value from Hive or …
When setting up Coordinator Only Impala Daemons, if those Impala Daemons do not have DataNode assigned to them, Impala will fail with error: This article will example what we can do about it. The reason for the failure is because due to the missing DataNode role, the socket path dfs.domain.socket.path …
All right, in the Part 2 of the Impala Profile series, I have talked about how to read the basic Impala query plan and Execution Summary from the Profile information. If you missed them, you can find the links from below: Impala Query Profile Explained – Part 1Impala Query Profile …
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!