The Mid Week News - 13/12/2017 edit 
It’s time for your weekly dose of the news, but don’t worry, it’s a fairly light one this week…
Technology updates (details are on the relevant technology pages):
- Apache Calcite has hit 1.5
- Apache Flink has hit 1.4
- Apache Kudu has hit 1.6
- Greenplum has hit 5.3
Other technology news:
- From Cloudera, a deep dive into Hadoop security and delegation tokens - link
- From The Register, thoughts on object storage and the increasing challenge of scale out file systems - link
- Thoughts on choosing an Hadoop Distribution from Kognitio - link
- From the SmartCat blog (via DZone), problems with Kafka Stream - link
- From InfoQ - thoughts on Amazon Nepture, their new cloud graph database - link