Re: Memory limits for children processes when running Tomcat as service?
honyk wrote: On 2013-06-26 André Warnier wrote: honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295- 92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Hi. The problem has nothing to do with Tomcat per se. It is due to running a Microsoft Office program (or library modules such as the Interop series) as a sub-process of a Windows Service (and thus in the same Service context) which is something that is not in the design of Microsoft Office, not supported by Microsoft, and even actively discouraged by Microsoft. See : http://support.microsoft.com/kb/257757 The problem is basically that a Windows Service does not run in the same environment as a user session environment, and as they say in that article, you will certainly experience unstable behavior and/or deadlock somewhere, and will get no help for it. I read this article but because I do not need intraction and my code doesn't run simultaneously and tomcat is launched using my credentials - I still thought it could be possible. Now realizing that tomcat launched using my credentials do not necesarily mean that Office use the same... Personal experience : some things will work with one MS-Office program, and totally fail with another; even simple things like opening or saving a file. It may work with one file, and fail with another, for no apparent reason. You get an OOM error in this case, but other cases may be file not found (although it's there) or whatever other bizarre failures. Ultimately it is unpredictable, frustrating and time-consuming. I was an optimist when everything worked in the user mode... Solutions : 1) instead of MS-Office, use LibreOffice or OpenOffice. Both can run in headless mode, and provide an API to have them do things with documents. And both can open and manipulate MS-Office documents. Depending on what you do, there may be some differences in the results, but it works fine for many things. Or try one of the other solutions suggested in the above article. (I have not tried them, I use OpenOffice/LibreOffice). I'll give it a try. I originaly tested Apache POI, but required functionality is not implemented yet. 2) do not run Tomcat as a Service. Create a virtual Windows machine, and run it in a user console (with startup.bat). You can restrict access to the VM, and since it is a VM, it can run unattended, just as a service would. (I am also using this scheme, when circumstances permit). But in that case, also pay attention to the licensing considerations at the end of the article. I am quite lost in this ;-) But I'll investigate further. Thanks a lot for your exhaustive analysis! Finally it looks my way is no way :-) No problem. I went myself through the exact same issues as you described, I did believe that there must be a workaround, tried a number of things with great loss of time, and finally had to admit that the MS article was right and that there is no good solution with MS-Office when starting it from a Service. About the Virtual Machine solution : usually, when you want something to run as a Service, it is because it has to run in the background, without a user being logged-in, because of security e.g. Also because otherwise, when the logged-in user logs off, any program that he's running get killed. With Virtual Machines (VM in short), you can create a Windows machine that has no real physical console, runs all the time, and where a user session can stay logged-in all the time. So in that kind of machine, it is not usually a problem if a user is logged-in and remains logged-in, with a console window open, and Tomcat running in it. And in that console window, your Tomcat could be running via startup.bat, and execute your MS-Office commands without problems, as it is not a Service. With respect to licensing, as long as that machine runs a licensed version of MS-Office, and all your Tomcat client workstations themselves are allowed to use MS-Office, you shoukd be in the clear. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Memory limits for children processes when running Tomcat as service?
On 2013-06-27 André Warnier wrote: honyk wrote: On 2013-06-26 André Warnier wrote: honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295- 92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Hi. The problem has nothing to do with Tomcat per se. It is due to running a Microsoft Office program (or library modules such as the Interop series) as a sub-process of a Windows Service (and thus in the same Service context) which is something that is not in the design of Microsoft Office, not supported by Microsoft, and even actively discouraged by Microsoft. See : http://support.microsoft.com/kb/257757 The problem is basically that a Windows Service does not run in the same environment as a user session environment, and as they say in that article, you will certainly experience unstable behavior and/or deadlock somewhere, and will get no help for it. I read this article but because I do not need intraction and my code doesn't run simultaneously and tomcat is launched using my credentials - I still thought it could be possible. Now realizing that tomcat launched using my credentials do not necesarily mean that Office use the same... Personal experience : some things will work with one MS-Office program, and totally fail with another; even simple things like opening or saving a file. It may work with one file, and fail with another, for no apparent reason. You get an OOM error in this case, but other cases may be file not found (although it's there) or whatever other bizarre failures. Ultimately it is unpredictable, frustrating and time-consuming. I was an optimist when everything worked in the user mode... Solutions : 1) instead of MS-Office, use LibreOffice or OpenOffice. Both can run in headless mode, and provide an API to have them do things with documents. And both can open and manipulate MS-Office documents. Depending on what you do, there may be some differences in the results, but it works fine for many things. Or try one of the other solutions suggested in the above article. (I have not tried them, I use OpenOffice/LibreOffice). I'll give it a try. I originaly tested Apache POI, but required functionality is not implemented yet. 2) do not run Tomcat as a Service. Create a virtual Windows machine, and run it in a user console (with startup.bat). You can restrict access to the VM, and since it is a VM, it can run unattended, just as a service would. (I am also using this scheme, when circumstances permit). But in that case, also pay attention to the licensing considerations at the end of the article. I am quite lost in this ;-) But I'll investigate further. Thanks a lot for your exhaustive analysis! Finally it looks my way is no way :-) No problem. I went myself through the exact same issues as you described, I did believe that there must be a workaround, tried a number of things with great loss of time, and finally had to admit that the MS article was right and that there is no good solution with MS-Office when starting it from a Service. I appreciate a lot your response and sharing your experience. Without it I would spend many additional hours of investigating, trial and error attempts, asking the same topic in different places, all this in heavy frustration... About the Virtual Machine solution : usually, when you want something to run as a Service, it is because it has to run in the background, without a user being logged-in, because of security e.g. Also because otherwise, when the logged-in user logs off, any program that he's running get killed. With Virtual Machines (VM in short), you can create a Windows machine that has no real physical console, runs all the time, and where a user session can stay logged-in all the time. So in that kind of machine, it is not usually a problem if a user is logged-in and remains logged-in, with a console window open, and Tomcat running in it. And in that console window, your Tomcat could be running via startup.bat, and execute your MS-Office commands without problems, as it is not
RE: Memory limits for children processes when running Tomcat as service?
When you run your MS app standalone how much heap, stack does this process occupy? When TC startsup how much heap,stack is left over for the standalone Microsoft app? If youre not going to powerup your machine with 8GB RAM and at least tera of storage your only solution is to configure your Microsoft Compound Documents be opened, read and written using POI https://poi.apache.org/ Keep us apprised, Martin From: j.tosov...@email.cz To: users@tomcat.apache.org Subject: RE: Memory limits for children processes when running Tomcat as service? Date: Thu, 27 Jun 2013 21:24:03 +0200 On 2013-06-27 André Warnier wrote: honyk wrote: On 2013-06-26 André Warnier wrote: honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295- 92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Hi. The problem has nothing to do with Tomcat per se. It is due to running a Microsoft Office program (or library modules such as the Interop series) as a sub-process of a Windows Service (and thus in the same Service context) which is something that is not in the design of Microsoft Office, not supported by Microsoft, and even actively discouraged by Microsoft. See : http://support.microsoft.com/kb/257757 The problem is basically that a Windows Service does not run in the same environment as a user session environment, and as they say in that article, you will certainly experience unstable behavior and/or deadlock somewhere, and will get no help for it. I read this article but because I do not need intraction and my code doesn't run simultaneously and tomcat is launched using my credentials - I still thought it could be possible. Now realizing that tomcat launched using my credentials do not necesarily mean that Office use the same... Personal experience : some things will work with one MS-Office program, and totally fail with another; even simple things like opening or saving a file. It may work with one file, and fail with another, for no apparent reason. You get an OOM error in this case, but other cases may be file not found (although it's there) or whatever other bizarre failures. Ultimately it is unpredictable, frustrating and time-consuming. I was an optimist when everything worked in the user mode... Solutions : 1) instead of MS-Office, use LibreOffice or OpenOffice. Both can run in headless mode, and provide an API to have them do things with documents. And both can open and manipulate MS-Office documents. Depending on what you do, there may be some differences in the results, but it works fine for many things. Or try one of the other solutions suggested in the above article. (I have not tried them, I use OpenOffice/LibreOffice). I'll give it a try. I originaly tested Apache POI, but required functionality is not implemented yet. 2) do not run Tomcat as a Service. Create a virtual Windows machine, and run it in a user console (with startup.bat). You can restrict access to the VM, and since it is a VM, it can run unattended, just as a service would. (I am also using this scheme, when circumstances permit). But in that case, also pay attention to the licensing considerations at the end of the article. I am quite lost in this ;-) But I'll investigate further. Thanks a lot for your exhaustive analysis! Finally it looks my way is no way :-) No problem. I went myself through the exact same issues as you described, I did believe that there must be a workaround, tried a number of things with great loss of time, and finally had to admit that the MS article was right and that there is no good solution with MS-Office when starting it from a Service. I appreciate a lot your response and sharing your experience. Without it I would spend many additional hours of investigating, trial and error attempts, asking the same topic in different places, all this in heavy frustration... About the Virtual Machine solution : usually, when you want something
Re: Memory limits for children processes when running Tomcat as service?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Martin, On 6/27/13 3:44 PM, Martin Gainty wrote: When you run your MS app standalone how much heap, stack does this process occupy? When TC startsup how much heap,stack is left over for the standalone Microsoft app? Read the documentation for java.lang.System.exec() and for the exec() family of calls in the C library, and you'll realize that your questions are irrelevant. If you're not going to powerup your machine with 8GB RAM and at least tera of storage your only solution What in the world are you talking about? is to configure your Microsoft Compound Documents be opened, read and written using POI https://poi.apache.org/ *rolls eyes* - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJRzJ0eAAoJEBzwKT+lPKRY0W0QALzPstrnKUDpTAwrekAX6yIN GRULhX8DE5EMcRQ0Z9TVYDj5Z2FaIOQebIERAeqz23g/v/F/C6jXeFMZtYQh80Rv Chtbm8TyN620N7Y7ghQe4P8AQDfaez/Xj4DRQy+StGwQjkpo0zK9o03DpsfSuPqv wpZtnoL8c8xaQx07i7O4qhyBnrXEJOJyPqvJyFuHDIosQHc4T/ksJPTKqaDFbRnO HWqCV2B4DgwaTg708SjWG+3j3gysLxtDLJFUNyYR2oaRyAKbl5HthvE8kQYEbpQT tYGoZlDSf9FV4tbADcWKprLi1krkvwh9unIoKeSABW4N4tE30s4S8bXzzPbyvVnI ZBEX/eAzyXCNBdf7v/X9Vztj6N0KjpYzuqwA1nn53F/zZJeO7rfrvkT9HgHmgsYj C2hw9f2G9OKO+Bn53Fw/6CNCBqB/ifT1sBU+IuubBUysuG2ECKs8lf13jVy1J4R+ a/OGq0VnVBZt6mo93gQPI9x308chQGkH3z/dNVekruuRSPq1Rb7QakvxGOGtJ2kv 2S8Qp+ixbI4KOfvxeeOo9j5IxjqRA5r/ikwVAwiAqtePPPjiAQL003ejguBh0aDW jv220z1BhMjfrtk9+lKHLwLdGNIE2fV0hb6VqS365aybyaS9d8qePuziFumArRYB JHqG4oL4mmtUnNBh6DrI =nFLB -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Memory limits for children processes when running Tomcat as service?
-Original Message- From: honyk [mailto:j.tosov...@email.cz] Sent: Wednesday, June 26, 2013 1:27 PM To: 'Tomcat Users List' Subject: Memory limits for children processes when running Tomcat as service? Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295- 92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Thanks, Jan What user is the Tomcat service running under? What other differences could exist between a user session (running with startup.bat) and a background session? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Memory limits for children processes when running Tomcat as service?
honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295-92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Hi. The problem has nothing to do with Tomcat per se. It is due to running a Microsoft Office program (or library modules such as the Interop series) as a sub-process of a Windows Service (and thus in the same Service context) which is something that is not in the design of Microsoft Office, not supported by Microsoft, and even actively discouraged by Microsoft. See : http://support.microsoft.com/kb/257757 The problem is basically that a Windows Service does not run in the same environment as a user session environment, and as they say in that article, you will certainly experience unstable behavior and/or deadlock somewhere, and will get no help for it. Personal experience : some things will work with one MS-Office program, and totally fail with another; even simple things like opening or saving a file. It may work with one file, and fail with another, for no apparent reason. You get an OOM error in this case, but other cases may be file not found (although it's there) or whatever other bizarre failures. Ultimately it is unpredictable, frustrating and time-consuming. Solutions : 1) instead of MS-Office, use LibreOffice or OpenOffice. Both can run in headless mode, and provide an API to have them do things with documents. And both can open and manipulate MS-Office documents. Depending on what you do, there may be some differences in the results, but it works fine for many things. Or try one of the other solutions suggested in the above article. (I have not tried them, I use OpenOffice/LibreOffice). 2) do not run Tomcat as a Service. Create a virtual Windows machine, and run it in a user console (with startup.bat). You can restrict access to the VM, and since it is a VM, it can run unattended, just as a service would. (I am also using this scheme, when circumstances permit). But in that case, also pay attention to the licensing considerations at the end of the article. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Memory limits for children processes when running Tomcat as service?
honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). Note that the Xmx setting is probably irrelevant here. It determines how much memory the JVM (which runs Tomcat) will allocate for its Heap (which it uses to store Java object instances and data). But the PPT process which you start will not use that memory area, it will use its own totally separate memory allocation. I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295-92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Thanks, Jan - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Memory limits for children processes when running Tomcat as service?
On 2013-06-26 Jeffrey Janner wrote: -Original Message- From: honyk [mailto:j.tosov...@email.cz] Sent: Wednesday, June 26, 2013 1:27 PM To: 'Tomcat Users List' Subject: Memory limits for children processes when running Tomcat as service? Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295- 92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Thanks, Jan What user is the Tomcat service running under? What other differences could exist between a user session (running with startup.bat) and a background session? I forgot to mention that the Tomcat service is launched using my credentials (not as local admin). The same account I use for a remote access and hence for launching the tomcat via startup.bat. I really do not see any differences. The same commands (cmd.exe, csript.exe, ...) are executed (64-bit variants) with the same params, but in one case there are memory limits. Btw, could be there any memory differences between users? I'll rather double check this. But I don't know how :-( What else... antivirus, firewall? I'll try to disable it for a while. AFAIK tomcat.exe is based on procrun wrapper. Is this wrapper memory safe? I just think (aloud) I could write a custom wrapper and execute my script directly from this new service... Quite complex to me... But I could check if it behaves differently or not... Jan - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Memory limits for children processes when running Tomcat as service?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Jan, On 6/26/13 2:27 PM, honyk wrote: I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295-92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Is it Tomcat that dies or the sub-process? Do you get a stack trace? If so, post it. Do you get a core dump? If so, post it (at least the back-trace of the offending thread). What actually happens, here? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJRy0rcAAoJEBzwKT+lPKRYqrIP/AmwKGRflEpEJvhihkCCzExv XzofHf/Z38uVJ2lPUhsyxcQLX6zjlMNads4vnq0CaFoGY3b/7lQxyj5LNDZ+TxVC NJzFgO1ZINTpr7YRw8AywaqKrlPRUWqSsWQq2pcAHQhHNq4DbAbUEynyxX0m7TBG q7XgJZTm6jrh2jm9xBYrnx9q0yid8ytpJ7Gu1yNCF4NHTPLpUKyR3IHyJDW1w6Bs kQfnGqlq0urAqin00iU1JrsOdsKoyqGzzR1vUuqwPOpnZ/tWhWBxCppjoKIxPTC3 /763n0W26YizKDtJ7NcKoD3XjiuWC8HC4yboKiekJj5dvjffurPx49z3XTiOoPIg 9f9JcYtzJxl0yhu0by5GuFfCz5YcxBl53Pf0AHFgcEyw6kcgbtEe992ckobNa0LS CVwLSIEiJUBIcc0pO+BQ+lbtNiB9AYQTd0UNScbwBuwywxse1mGoXC4ShanrcCxh AzVFc2LTxwk2wlO/KHUigZVsBMzNi9RyygpYyMx/Qn5hFN7Kmuly/qRoKNs/792p 69NorGkM5/EqhRCAk7K8tiInghG3SjWsoQ6ux6RI9TgbYA7O08u2mrsDd5DGx9dT 8T0uXpZv6WRlgqC+VpgDCvI/eYJ6y7fAbTdpdDLnlOGHSvPt3ECQrO+IWiYVUwm/ kNURqQy8YrPgqp9Q0Rg1 =jbwa -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Memory limits for children processes when running Tomcat as service?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 André, On 6/26/13 3:52 PM, André Warnier wrote: Solutions : 1) instead of MS-Office, use LibreOffice or OpenOffice. Both can run in headless mode, and provide an API to have them do things with documents. And both can open and manipulate MS-Office documents. Depending on what you do, there may be some differences in the results, but it works fine for many things. Or try one of the other solutions suggested in the above article. Or Apache POI - http://poi.apache.org/ ...but it looks like you have already commented on the PowerPoint forum about that. I'm interested in what kind of OutOfMemoryError OP is getting: there is more than one kind. It may be that OP is out of file handles or something like that, and so changing the heap size isn't useful. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJRy0xpAAoJEBzwKT+lPKRYOsUP/j+6VgMqgPGcMAHE4vKhrRvh UUV2gZqgA7PScwPXKqVN+UckLnnpNpudYrIwk9yqDsCqALh6mYOHMfOm5OHrlP9c GVwKeB1UuHCJg/zdCTbRlyojF7GxI7UWEQjbSq7ygFFG0cgiusQzS340Gtw7nsvI tHG3W4xOErCdsdSmYLUijADEw+XGt7kA1m7XQpJJ0ryT3dWxWlk+5fnvm5Gu7GvI lcWY+IV/V9tUimvKzhHAma0Bn/NjkOYtiKvG8fRq7cZWqmWmYMoYS7IQbYB2SKPB 3ujFa5ELdRJdtqNps085r3WsuBLSpYHwwS7XMGNsABLW6cS2R75QXcMKmTwB6/S0 WAiCVv8h2JI9zWL/CgpnXGZLmNeT6iICdCJjInYM4vXpQi+HU+JO3vv5XxqbidLr kSpB9p0DO7Hb9wstnHvr847r8dWsy3duUNaLeLX+Ts46LC5jkISPLr9a2q0jq86x 0cxqubXq9jIpI1qIuElxC5s9idMEFpROVAxuwQ1XVNKwjmthmNB5SqbsTGfGw2UN hBRDgYWGjqeDLYdLUvjQOZukd5DuZ6oVSrlh/66X/vbnhS38bG4z0qFWxh2kt8Nj ReulZMBMWDc4casQWv+3GJXqMQ8IhaesVzGA6nc0KI61wn7tZSOKAdPpEksl0vAs GLqCkdpnCKM5AF7Xtkhq =ZBtl -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Memory limits for children processes when running Tomcat as service?
On 2013-06-26 André Warnier wrote: honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). I originally asked PowerPoint forum, but haven't get any explanation yet: http://answers.microsoft.com/thread/37cbebf6-4003-4ab0-9295- 92413aaecc2e But as the entry point is Tomcat and the only difference between problematic and non problematic behavior is the 'service' mode, maybe there is something related in the tomcat7.exe code base. Just guessing. Has anybody an idea why both modes behave differently? Hi. The problem has nothing to do with Tomcat per se. It is due to running a Microsoft Office program (or library modules such as the Interop series) as a sub-process of a Windows Service (and thus in the same Service context) which is something that is not in the design of Microsoft Office, not supported by Microsoft, and even actively discouraged by Microsoft. See : http://support.microsoft.com/kb/257757 The problem is basically that a Windows Service does not run in the same environment as a user session environment, and as they say in that article, you will certainly experience unstable behavior and/or deadlock somewhere, and will get no help for it. I read this article but because I do not need intraction and my code doesn't run simultaneously and tomcat is launched using my credentials - I still thought it could be possible. Now realizing that tomcat launched using my credentials do not necesarily mean that Office use the same... Personal experience : some things will work with one MS-Office program, and totally fail with another; even simple things like opening or saving a file. It may work with one file, and fail with another, for no apparent reason. You get an OOM error in this case, but other cases may be file not found (although it's there) or whatever other bizarre failures. Ultimately it is unpredictable, frustrating and time-consuming. I was an optimist when everything worked in the user mode... Solutions : 1) instead of MS-Office, use LibreOffice or OpenOffice. Both can run in headless mode, and provide an API to have them do things with documents. And both can open and manipulate MS-Office documents. Depending on what you do, there may be some differences in the results, but it works fine for many things. Or try one of the other solutions suggested in the above article. (I have not tried them, I use OpenOffice/LibreOffice). I'll give it a try. I originaly tested Apache POI, but required functionality is not implemented yet. 2) do not run Tomcat as a Service. Create a virtual Windows machine, and run it in a user console (with startup.bat). You can restrict access to the VM, and since it is a VM, it can run unattended, just as a service would. (I am also using this scheme, when circumstances permit). But in that case, also pay attention to the licensing considerations at the end of the article. I am quite lost in this ;-) But I'll investigate further. Thanks a lot for your exhaustive analysis! Finally it looks my way is no way :-) Regards, Jan PS: And sorry for blaming the Tomcat. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Memory limits for children processes when running Tomcat as service?
On 2013-06-26 André Warnier wrote: honyk wrote: Dear All, I have a JSF2.0 app that executes (via ProcessBuilder) an external script. This script opens PPTX via PowerPoint ActiveX object, manipulate it and save. It runs on Windows Server 2008 R2 64-bit, 4GB RAM, JDK 7. When tomcat 7 is launched using startup.bat (with original settings), it works fine. When tomcat runs as a service, opening the PPTX in the PowerPoint fails because of Out Of Memory error regardless Xmx settings (tomcat7w.exe). Note that the Xmx setting is probably irrelevant here. I suppose so, but I rather mentioned this. But the PPT process which you start will not use that memory area, it will use its own totally separate memory allocation. Ok, thanks. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
