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Re:How does a relational database work? by parasubvert on Thursday August 20, 2015 @09:53AM (#10091779)
He's talking about Apache Spark.

While it can handle 100 MB easily there probably are faster ways to handle that small amount of data. But yes, Spark can handle many PB and doesn't require a ton of changes in the code as you scale up from say 10 TB to 100 PB. The underlying cluster would change, and the performance profile would change a lot (10 TB can be done in-memory ... many PB, not so much)

Re:How does a relational database work? by dang on Thursday August 20, 2015 @06:56PM (#10095100)
Please don't make technical comments (or any comments) in this inflammatory, nasty way.

We're lucky that you didn't spark a horrible flamewar, but instead got patient, factual replies.

Re:How does a relational database work? by angrybits on Friday August 21, 2015 @04:00PM (#10099863)
I know. And I'm sorry, bitterly sorry, but I know that... no apologies I can make can alter the fact that in our thread you have been given a dirty, filthy, smelly piece of technical argument.
Re:How does a relational database work? by dang on Friday August 21, 2015 @04:23PM (#10099991)
I'm not following you here. The point is that you have a history of doing this and if you won't stop doing it you can't comment on HN.
Re:How does a relational database work? by angrybits on Friday August 21, 2015 @10:06PM (#10101201)
What can I say, being an asshole is one of my diversity dimensions. We just had that training at work, it was very helpful.

Also, I hope you aren't a Python dev in your spare time. Guido would be appalled.

https://www.youtube.com/watch?v=EdzqTGmEcZE

Re:How does a relational database work? by MichaelGG on Thursday August 20, 2015 @12:30AM (#10090029)
He's right. Pretend you have 100PB. Write code for that. It'll work for 100MB but have terrible overheads.
Re:How does a relational database work? by parasubvert on Thursday August 20, 2015 @09:52AM (#10091770)
He's talking about writing it for Apache Spark.

Which really isn't intended for 100 MB (I bet I could write a unix pipe & filter script that's faster than Spark), but is intended for 10 TB through several PB.