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Debugging Map Reduce in MongoDB

(K. Scott Allen) There isn’t much insight into the execution of a map reduce script in MongoDB, but I’ve found three techniques to help. Of course the preferred technique for map reduce is to use declarative aggregation operators, but there are some problems that naturally lend themselves to copious

Editorials

Disk Hackers

Recently exposed is the fact that drives from many manufacturers have been altered, allowing covert programs to execute simply by accessing the hard disk controller. This is the kind of thing alluded to in spy novels. Now it has been exposed as fact by reliable resources. Until there is a certification process that a disk controller has not been modified, […]

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Incorporating logging, error handling, and reliability into your SQL Server Integration Services (SSIS) package design – (Part 3)

Incorporating logging, error handling, and reliability into your SQL Server Integration Services (SSIS) package design – (Part 3) Author: Basit A. Farooq In the first two parts of this three part article series on "Incorporating logging, error handling, and reliability into your SQL Server Integration Services (SSIS) package design", we discussed how to design and implement logging into your SQL...

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