Are you creating the files in a directory that is being monitored for changes? Do you have something like TortiseSVN or some client or software installed that monitors files?
Regards, Howard Shank ----- Original Message ---- From: "Kobty, Joseph" <joseph.ko...@medisolution.com> To: Post all your questions about iText here <itext-questions@lists.sourceforge.net> Sent: Tuesday, August 11, 2009 11:33:29 AM Subject: Re: [iText-questions] out of Kernel memory I will try that, thanks. Another interesting observation. The kernel memory leak starts after about 7000 files created, so it is not immediate, And then continues to grow. Only way to shrink it back down is if I delete the files and then clear the recycle bin. Clearing the recycle bin, brings the kernel memory back down. Weirdness. I will disable the virus scanning on my server to see if it is related to the virus scanner doing something because it detects a large amount of files being created. -----Original Message----- From: Howard Shank [mailto:hgsh...@yahoo.com] Sent: August 11, 2009 11:14 AM To: Post all your questions about iText here Subject: Re: [iText-questions] out of Kernel memory The SYSINTERNALS tool you are referring to is PROCMON. Great tool for tracking down internal issues in Windows. Howard Shank ----- Original Message ---- From: Mike Marchywka <marchy...@hotmail.com> To: itext-questions@lists.sourceforge.net Sent: Tuesday, August 11, 2009 11:03:09 AM Subject: Re: [iText-questions] out of Kernel memory ---------------------------------------- > Date: Tue, 11 Aug 2009 07:47:39 -0700 > From: hgshank > To: itext-questions@lists.sourceforge.net > Subject: Re: [iText-questions] out of Kernel memory > > If the files are being written to a different server and that server > experiences memory issues, then it obviously is something to do with windows > and the way it's handling the files and not an iText issue. > > Perform a memory leak dump analysis on the process while it is running using > DebugDiags and select the process. You can do select the process and do a > full dump and then analyze the dmp file to determine where the leak is being > created. I was going to suggest the heap analaysis tool when I thought this was an issue with java :) I'm not even sure of the details here but is there a "close" for the file? IIRC in the past when I don't explicitly call close in some cases that should flush/close when reference count goes to zero I've gotten incomplete files etc. If you believe it to be handle related, there is a sysinternals tool ( handle IIRC) for checking for open files etc. Sometimes resource depletion messages are not literal ( "out of memory" could mean out of some related thing, I think I've seen if for GDI's or something). > > Regards, > Howard Shank > > > > ----- Original Message ---- > From: "Kobty, Joseph" > To: Post all your questions about iText here > Sent: Tuesday, August 11, 2009 10:30:47 AM > Subject: Re: [iText-questions] out of Kernel memory > > Change your test to the following and let it run for a few minutes and you > will see the kernel memory climb > It does not happen in your example because you are writing to the same file > name each time. Seems to be as the number of files generated increases, the > problem occurs. > Another interesting observation, The kernel memory increases out of control > on the server where the files are being written to, not on the server where > the application is running. This is what was throwing me off to think it is > related to IIS or console application. Try the test below and let it run for > a few minutes, eventually it will run out of kernel memory. The only > modification to you code is that I am generating a different file for each > loop iteration. > for (int i = 0; i < 1000000; i++) > { > > Document pdfDocument = new Document(); > String outputPath = @"c:\test"; > String reportName = "test" + i.ToString() + ".pdf"; > FileStream strm = new FileStream(Path.Combine(outputPath, reportName), > FileMode.Create); > > PdfWriter writer = PdfWriter.GetInstance(pdfDocument, strm); > > pdfDocument.Open(); > > pdfDocument.Add(new Paragraph("test")); > > pdfDocument.Close(); > > } > > -----Original Message----- > From: Paulo Soares [mailto:psoa...@glintt.com] > Sent: August 10, 2009 5:03 PM > To: Post all your questions about iText here > Subject: Re: [iText-questions] out of Kernel memory > > I have this code running and all is ok. > > for (int i = 0; i < 1000000; i++) { > > Document pdfDocument = new Document(); > > FileStream strm = new FileStream("c:\\atp.pdf", FileMode.Create); > > PdfWriter writer = PdfWriter.GetInstance(pdfDocument, strm); > > pdfDocument.Open(); > > pdfDocument.Add(new Paragraph("test")); > > pdfDocument.Close(); > > } > > Paulo > > ----- Original Message ----- > From: "Kobty, Joseph" > To: "Post all your questions about iText here" > > Sent: Monday, August 10, 2009 9:32 PM > Subject: Re: [iText-questions] out of Kernel memory > > > Yes I am using V4.1.6. > The .NET I have installed has version 2.0.50727.42 > Which I believe has the latest service packs. > > > -----Original Message----- > From: Paulo Soares [mailto:psoa...@glintt.com] > Sent: August 10, 2009 4:16 PM > To: Post all your questions about iText here > Subject: Re: [iText-questions] out of Kernel memory > > Are you using iTextSharp 4.1.6? If you are using .NET 2.0 without SP1 you > may have leaks due to leaks in the framework. > > Paulo > > ----- Original Message ----- > From: "Kobty, Joseph" > To: > Sent: Monday, August 10, 2009 8:46 PM > Subject: [iText-questions] out of Kernel memory > > > Hi > I am creating PDF documents on the fly using iTextSharp. I noticed that the > server where I am running this process runs out of Kernel memory (System > memory) > After about 50,000 files. I commented out all the code to see what is > causing it, and it seems the mere fact of opening a PDF document and writing > something simple like "test" and then closing it, uses a bit of kernel > memory each time which is never released, so as thousands of files are > created the kernel memory usage keeps climbing until my server finally shuts > down and reboots. Seems to be done by the simple action of opening and > closing a pdf document. > > For (int I = 0; I < 100000; i++) > { > Document pdfDocument = new Document(); > String outputPath = @"C:\"; > String reportName = "test" + i.ToString() + ".pdf"; > using (FileStream strm = new FileStream(Path.Combine(outputPath, > reportName), FileMode.Create)) > { > PdfWriter writer = PdfWriter.GetInstance(pdfDocument, strm); > pdfDocument.Open(); > pdfDocument.Add(new Paragraph("test")); > strm.Close(); > writer.Close(); > pdfDocument.Close(); > } > } > Joseph Kobty > Team leader/Business analyst > > MediSolution Ltd. | A Brookfield Asset Management Company > 5915 Airport Road, Suite 810, Mississauga, Ontario, L4V 1T1 > Tel 905.673.4100 ext 4042 > joseph.ko...@medisolution.com | > www.medisolution.com > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Buy the iText book: http://www.1t3xt.com/docs/book.php > Check the site with examples before you ask questions: > http://www.1t3xt.info/examples/ > You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Buy the iText book: http://www.1t3xt.com/docs/book.php > Check the site with examples before you ask questions: > http://www.1t3xt.info/examples/ > You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ > > > > > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > Buy the iText book: http://www.1t3xt.com/docs/book.php > Check the site with examples before you ask questions: > http://www.1t3xt.info/examples/ > You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ _________________________________________________________________ Get free photo software from Windows Live http://www.windowslive.com/online/photos?ocid=PID23393::T:WLMTAGL:ON:WL:en-US:SI_PH_software:082009 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/ ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php Check the site with examples before you ask questions: http://www.1t3xt.info/examples/ You can also search the keywords list: http://1t3xt.info/tutorials/keywords/
