Use Flush(True) and FlushFileBuffers both?












1















I want to write to a file and flush to disk immediately.



Other questions on SO pointed out that Flush(True) isn't reliable on .NET 4.0. I am indeed using .NET 4.0 and can't upgrade any time soon.



Is FlushFileBuffers reliable? or is it known to have a bug too?



Is there an option that I can use or should I use both and hope for the best?










share|improve this question























  • Other questions on SO A link to those questions may get you more answers.

    – mjwills
    Nov 15 '18 at 23:07
















1















I want to write to a file and flush to disk immediately.



Other questions on SO pointed out that Flush(True) isn't reliable on .NET 4.0. I am indeed using .NET 4.0 and can't upgrade any time soon.



Is FlushFileBuffers reliable? or is it known to have a bug too?



Is there an option that I can use or should I use both and hope for the best?










share|improve this question























  • Other questions on SO A link to those questions may get you more answers.

    – mjwills
    Nov 15 '18 at 23:07














1












1








1








I want to write to a file and flush to disk immediately.



Other questions on SO pointed out that Flush(True) isn't reliable on .NET 4.0. I am indeed using .NET 4.0 and can't upgrade any time soon.



Is FlushFileBuffers reliable? or is it known to have a bug too?



Is there an option that I can use or should I use both and hope for the best?










share|improve this question














I want to write to a file and flush to disk immediately.



Other questions on SO pointed out that Flush(True) isn't reliable on .NET 4.0. I am indeed using .NET 4.0 and can't upgrade any time soon.



Is FlushFileBuffers reliable? or is it known to have a bug too?



Is there an option that I can use or should I use both and hope for the best?







c# .net filesystems filestream flush






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share|improve this question











share|improve this question




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asked Nov 15 '18 at 23:06









user1071840user1071840

1,58853255




1,58853255













  • Other questions on SO A link to those questions may get you more answers.

    – mjwills
    Nov 15 '18 at 23:07



















  • Other questions on SO A link to those questions may get you more answers.

    – mjwills
    Nov 15 '18 at 23:07

















Other questions on SO A link to those questions may get you more answers.

– mjwills
Nov 15 '18 at 23:07





Other questions on SO A link to those questions may get you more answers.

– mjwills
Nov 15 '18 at 23:07












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I guess the "bug" you are talking about is this one:




.NET Framework 4.0 introduced the new FileStream.Flush(bool flushToDisk) overload.
If flushToDisk is set to true, it should commit the changes to disk.



However, in many cases (if internal buffer pointer is 0) the changes are not committed to disk, and the Flush(true) call does absolutely nothing.



If applications rely on FileStream.Flush(true) working as described, it could lead to data corruption issues.




but according to Is there an official fix (aka KB) for the FileStream.Flush bug introduced in .Net 4 it has been fixed with 4.0.3:




...As far as I can tell it is fixed in .NET Framework Update 4.0.3 even though it's not mentioned in the KB.







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    1 Answer
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    I guess the "bug" you are talking about is this one:




    .NET Framework 4.0 introduced the new FileStream.Flush(bool flushToDisk) overload.
    If flushToDisk is set to true, it should commit the changes to disk.



    However, in many cases (if internal buffer pointer is 0) the changes are not committed to disk, and the Flush(true) call does absolutely nothing.



    If applications rely on FileStream.Flush(true) working as described, it could lead to data corruption issues.




    but according to Is there an official fix (aka KB) for the FileStream.Flush bug introduced in .Net 4 it has been fixed with 4.0.3:




    ...As far as I can tell it is fixed in .NET Framework Update 4.0.3 even though it's not mentioned in the KB.







    share|improve this answer




























      0














      I guess the "bug" you are talking about is this one:




      .NET Framework 4.0 introduced the new FileStream.Flush(bool flushToDisk) overload.
      If flushToDisk is set to true, it should commit the changes to disk.



      However, in many cases (if internal buffer pointer is 0) the changes are not committed to disk, and the Flush(true) call does absolutely nothing.



      If applications rely on FileStream.Flush(true) working as described, it could lead to data corruption issues.




      but according to Is there an official fix (aka KB) for the FileStream.Flush bug introduced in .Net 4 it has been fixed with 4.0.3:




      ...As far as I can tell it is fixed in .NET Framework Update 4.0.3 even though it's not mentioned in the KB.







      share|improve this answer


























        0












        0








        0







        I guess the "bug" you are talking about is this one:




        .NET Framework 4.0 introduced the new FileStream.Flush(bool flushToDisk) overload.
        If flushToDisk is set to true, it should commit the changes to disk.



        However, in many cases (if internal buffer pointer is 0) the changes are not committed to disk, and the Flush(true) call does absolutely nothing.



        If applications rely on FileStream.Flush(true) working as described, it could lead to data corruption issues.




        but according to Is there an official fix (aka KB) for the FileStream.Flush bug introduced in .Net 4 it has been fixed with 4.0.3:




        ...As far as I can tell it is fixed in .NET Framework Update 4.0.3 even though it's not mentioned in the KB.







        share|improve this answer













        I guess the "bug" you are talking about is this one:




        .NET Framework 4.0 introduced the new FileStream.Flush(bool flushToDisk) overload.
        If flushToDisk is set to true, it should commit the changes to disk.



        However, in many cases (if internal buffer pointer is 0) the changes are not committed to disk, and the Flush(true) call does absolutely nothing.



        If applications rely on FileStream.Flush(true) working as described, it could lead to data corruption issues.




        but according to Is there an official fix (aka KB) for the FileStream.Flush bug introduced in .Net 4 it has been fixed with 4.0.3:




        ...As far as I can tell it is fixed in .NET Framework Update 4.0.3 even though it's not mentioned in the KB.








        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 16 '18 at 1:14









        Markus SafarMarkus Safar

        4,76241938




        4,76241938
































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