Author Archives: Lowes Shopper

HCatalog – Embrace the independence

Codd’s Rule 9: Logical data independence: Changes to the logical level (tables, columns, rows, and so on) must not require a change to an application based on the structure. Logical data independence is more difficult to achieve than physical data … Continue reading

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Thought of the day. Storing Confio detailed data in Hadoop?

If you manage a lot of Oracle, M$SQL, or DB2 – you need to check out Confio. Its an agent-less performance trending tool that will make you’re life much easier.  It tracks every SQL run by user/client machine/sql statement/etc and … Continue reading

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Hello, McFly?

Should you really trust a data integration team who spends 30 minutes arguing that they SHOULDN’T include all source system customer attribute data in MDM?

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Hadoop cluster failure SS style.

Learn from history or you’ll be doomed to repeat it.

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Confessions of a data architect

My name is DataG and I’m a data modeler.  It’s been 6 weeks since my last star-schema. Lets face it.  Codd, Imhoff, Inmon, and Kimball paved the way for almost every data analyst and app-dev professional since the relational model … Continue reading

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Silly Rabbit, HMC is for Kids!

I was using HMC 1.0 to install and configure a hadoop test cluster.  I wanted to make some changes to /usr/lib/hadoop/conf because the property that I needed to change is not exposed via Manage Services Map Reduce in HMC.  I tried … Continue reading

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