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POTextWriter.WriteLine IO Exception - The specified network name is no longer available
 

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  1. POTextWriter.WriteLine IO Exception - The specified network name is no longer available
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    <p>I am trying to write text file after reading from a large tab delimited text file in a console application. Issue is that if I run many instances of this exe concurrently on a server, it gives me runtime error at TextWriter.WriteLine and then application crashes because of unhandled exception. This happens with all the instances. I fail to understand the reason for this behavior.. Is it because I am not using StringBuilder which will use memory dynamically ?</p> <p>My code is as follows :</p> <pre><code> StreamReader sr = new StreamReader(@FilePath, System.Text.Encoding.Default); string mainLine = sr.ReadLine(); string[] fileHeaders = mainLine.Split(new string[] { "\t" }, StringSplitOptions.None); string newLine = ""; System.IO.StreamWriter outFileSw = new System.IO.StreamWriter(@outFile); while (!sr.EndOfStream) { mainLine = sr.ReadLine(); string[] originalLine = mainLine.Split(new string[] { "\t" }, StringSplitOptions.None); newLine = ""; for (int i = 0; i &lt; fileHeaders.Length; i++) { if(fileHeaders[i].Trim() != "") newLine = newLine + fileHeaders[i].Trim() + "=" + originalLine[i].Trim() + "&amp;"; } outFileSw.WriteLine(newLine.Remove(newLine.Length - 1)); FileInfo fileInfo = new FileInfo(@outFile); if (fileInfo.Length &gt; (1.3 * 1024.0 * 1024.0 * 1024.0)) // greater than 1.3 GB { outFileSw.Close(); outFileNumber = outFileNumber + 1; outFileSw = new System.IO.StreamWriter(@outFile + outFileNumber.ToString() + ".txt"); } } outFileSw.Dispose(); sr.Close(); sr.Dispose(); </code></pre> <p>Error details are :</p> <pre><code>Exception Message: The specified network name is no longer available. Stack Trace: at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count) at System.IO.FileStream.Write(Byte[] array, Int32 offset, Int32 count) at System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder) at System.IO.StreamWriter.Write(Char[] buffer, Int32 index, Int32 count) at System.IO.TextWriter.WriteLine(String value) at ExampleExe.ExampleProcess.FnFiles() Unhandled Exception: System.IO.IOException: The specified network name is no longer available. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count) at System.IO.FileStream.FlushWrite(Boolean calledFromFinalizer) at System.IO.FileStream.Dispose(Boolean disposing) at System.IO.FileStream.Finalize() </code></pre> <p>Thanks, Kanu</p>
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    1. USkanu
    1. USkanu
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      1. POTextWriter.WriteLine IO Exception - The specified network name is no longer available
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      1. VTUpMod
    1. CODo you ever close those files? `using(){}` is very useful in these cases.
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      1. POTextWriter.WriteLine IO Exception - The specified network name is no longer available
      1. USnrodic
    2. CO@nrodic: Yes.. I do close and dispose after processing the complete file from which I am reading. Further, the error happens when the application is trying to write the file.
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      1. POTextWriter.WriteLine IO Exception - The specified network name is no longer available
      1. USkanu
    3. CO@nordic: I edited the question text to show how I do Close and Dispose...
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      1. POTextWriter.WriteLine IO Exception - The specified network name is no longer available
      1. USkanu
 

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