If you’ve done sqoop incremental import, you must have seen we need to provide the last incremented value each time we do sqoop incremental import. But in normal working we don’t run such sqoop incremental import...
Category - Hadoop
How to Update and Delete Hive Tables
With the Hive version 0.14 and above, you can perform the update and delete on the Hive tables. In this post, we are going to see how to perform the update and delete operations in Hive. But update delete in Hive is not automatic...
HBase Namespace Commands and Examples
In last few days, we have talked a lot about the namespace in our Hadoop federation vs high availability post. And we are going to see this namespace form HBase prospective now. You can create the HBase namespace to the schema of...
HDFS Federation vs High Availability [An Ultimate Guide]
HDFS federation vs high availability: No matter which of these two we are talking about, both came from Hadoop 2. Earlier, we discussed a lot about the single point of failure with Hadoop 1 in our HDFS tutorial and were looking...
Hadoop 1 vs Hadoop 2- The Major Difference You should know
Earlier our HDFS Tutorial was purely based on Hadoop 1 and when recently I started taking the next Hadoop Developer online training, I realised this has not been updated for so long. And this post on Hadoop 1 vs Hadoop 2 is in...
CenturyLink Hadoop Admin Interview Questions and Answers [Updated]
Recently, one of our users appeared for CenturyLink Hadoop admin interview and they shared CenturyLink Hadoop admin interview questions and answers. This CenturyLink Hadoop admin interview questions and answer has been edited and...