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Re: Processing ~1 Trillion records

by dHarry (Abbot)
on Oct 25, 2012 at 10:06 UTC ( #1000798=note: print w/ replies, xml ) Need Help??

in reply to Processing ~1 Trillion records

Can you give some background information of the problem at hand?

What database do you use? What does the query look like?

Restructuring a massive array and writing CSV files sounds costly. What pattern? How many CSV files?

Profiling a (small) subset of the data might give some indication. Did you time how long the various steps take?

In short: could you show some code please?

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