How to do atomic writes in a file

re: How to do atomic writes in a file

Brad Gessler — Thu, 29 Dec 2005 02:32:27 GMT

So does the transactional file system that is to be included with Vista abstract this 'mess' away from developers? Or when they want to write atomicly to a file, do they still need to worry about all of the above?

As a side note, you wouldn't believe the problems I have with 'developers' that don't know about atomicity on a larger scale. I'm currently in charge of maintaining an MS Access... <cring>yes, Access application that translates data from a legacy mainframe database into an MS SQL database. The developer who created the "solution" paid no attention to atomicity which has caused all sorts of headaches (ie: when the application fails, and this sucker fails, where did it fail?). I suppose I shouldn't expect a developer who chose Access as a data transformation engine would not understand this concept. :)

re: How to do atomic writes in a file

AdiOltean — Thu, 29 Dec 2005 03:06:07 GMT

>>> So does the transactional file system that is to be included with Vista abstract this 'mess' away from developers? Or when they want to write atomicly to a file, do they still need to worry about all of the above?

Yes. TxF allows you to write to the file system while preserving ACID semantics (including atomic writes). So you don't need all this mess with TxF.

In addition, you can also have transactions that span multiple resource managers. For example you can have a transaction that contains some SQL commands and some unrelated file system operations.

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