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Monthly Archives: June 2017
Hadoop High Availability In A Hurry – Part 1: HDFS
I’ve been studying for a couple of hours how Hadoop high availability works, for the HDPCA exam. And now I’ve condensed that knowledge to a video on HDFS HA in just under 9 minutes. Enjoy!
Posted in Apache Products for Outsiders, Learning Big Data
Tagged DataNode, edits file, Fencing, fsimage, Hadoop, HDFS, High availability, JournalNode, NameNode, Split brain, ZKFC, ZooKeeper
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Certifying as HDP Certified Administrator
Let’s talk about certification. The thing by which you try to show potential employers and customers that you actually know what you are doing at work. My only experience up to last Tuesday with IT product-related certifications was with Oracle’s … Continue reading
Posted in Learning Big Data
Tagged certification, HDPCA, Hortonworks, Hortonworks University
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