Using HBase and Impala to Add Update and Delete Capability to Hive DW Tables, and Improve Query Response Times

Tuesday, May 19th, 2015 by

One of our customers is looking to offload part of their data warehouse platform to Hadoop, extracting data out of a source system and loading it into Apache Hive tables for subsequent querying using OBIEE11g. One of the challenges that the project faces though is how to handle updates to dimensions (and in their case, […]

Trickle-Feeding Log Data into the HBase NoSQL Database using Flume

Wednesday, May 21st, 2014 by

The other day I posted an article on the blog around using Flume to transport Apache web log entries from our website into Hadoop, with the final destination for the entries being an HDFS file – with the HDFS file essentially mirroring the contents of the webserver log file. Once you’ve set this transport mechanism […]

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