Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

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?

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1000798]
help
Chatterbox?
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (4)
As of 2016-12-09 10:59 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    On a regular basis, I'm most likely to spy upon:













    Results (150 votes). Check out past polls.