MongoDB limit storage size?

The “production deployments” page on MongoDB’s site may be of interest to you. Lots of presentations listed with infrastructure information. For example: http://blog.wordnik.com/12-months-with-mongodb says they’re storing 3 TB per node.

What is the range of a Windows HANDLE on a 64 bits application?

MSDN states: Interprocess Communication Between 32-bit and 64-bit Applications 64-bit versions of Windows use 32-bit handles for interoperability. When sharing a handle between 32-bit and 64-bit applications, only the lower 32 bits are significant, so it is safe to truncate the handle (when passing it from 64-bit to 32-bit) or sign-extend the handle (when passing … Read more

__int64 on a 32-Bit machine?

Same way 32-bit arithmetic worked on 16-bit systems. In this case, it uses 2 32-bit memory addresses to form a 64-bit number together. Addition/substraction is easy, you do it by parts, the only gotcha is taking the carry-over from the lower part to the higher part. For multiplication/division, it’s harder (ie more instructions). It’s obviously … Read more

BadImageFormatException when AnyCPU test assembly implements interface from x64 production assembly

I came here searching for the solution for a similar problem. Posting this answer just in case the solution I found helps someone else. This solved it for me in Visual Studio (2012): Add New Item -> Test Settings Change the testsetting By default this is set to “Force test to run in 32 bit … Read more

Processor, OS : 32bit, 64 bit

Let’s try to answer this question by looking at people versus computers; hopefully this will shed some light on things for you: Things to Keep In Mind As amazing as they are, computers are very, very dumb. Memory People have memory (with the exception, arguably, of husbands and politicians.) People store information in their memory … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)