Desktop Heap Encountered Error While Allocating Session Memory Server 2003
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in to vote HI All, I have been facing a very serious issue with Wk3 server 32 bit with SP2 server. It is a dell
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power edge 1955 physical server with 16 GB RAM and 140 GB HDD usable space after RAID 1. Issue: System performance is too slow Symantec netbackup backup is extremely slow, may take 1 year to finish 100 GB I/O writes is too high for services.exe (Av. value showing : 11,769,394,454 out of memory windows 10 Bytes) Server running with applications like SQL 2008, IIS, IIS resource tool, IBM websphereMQ, Symantec Endpoint protection client SystemEvent Logs is filling with Event ID :333 I have restarted the server but the I/O write will start to increase gradually and will show a big value after some days and server performance will be too bad. I have resized page file size but no luck. I have noticed some events, which i am getting once i restarted the server. PopUp: winlogon.exe - system error the desktop heap encountered an error while allocating session memory. there is more information in the system event log. Events: Event Log System Event Source Win32k Event ID 1046 Severity Error Description HKLM\SYSTEM\CurrentControlSet\Control\SessionManager\SubSystems\Windows registry contains a substring SharedSection=. The values for this SharedSection are too big. The Default values are SharedSection=10243072512 Please change the registry values for Windows to load up properly. Checkout
Stable Release Release Notes Past Releases Order Buy now License FAQ Distributors Documentation Introduction Integration Methods Launching your Application List of Properties desktop heap size windows server 2008 r2 Java API Localization / i18n Customizing Your Application (Windows) Security out of memory error windows 10 Model JMX Control TestWrapper Application Support Debugging Troubleshooting Questions & Answers FAQ Technical Tips Issue Tracking computer out of memory windows 10 Maling List Get Support Community SourceForge Project Source Repository About us Company Profile Distributors Customers Contact us HowTo Page: HowTo Top - Wrapper Configuration - Wrapper https://social.technet.microsoft.com/Forums/windowsserver/en-US/14be2a9b-91d6-49ba-8926-4838a6e0e88d/high-io-write-in-windows-2003-server?forum=winservergen Java API Configuration Properties: Configurations Overview - Note about Configurations JVM Configurations Logging Configurations Windows Configurations Linux/UNIX Configurations WrapperW (GUI) Configurations Property List by Category Property List by Name Advanced Properties Event Properties Support: Technical Support Troubleshooting Technical Tips HOWTO Q&A FAQ Supported: JVMs Platforms Currently logged on:0 users, 51 guestsCustomers Support HOWTO https://wrapper.tanukisoftware.com/doc/english/howto-solving-dheap-problems.html Investigate and solve Windows Desktop Heap Problems HowTo: How to investigate and solve Windows Desktop Heap Problems Compatibility : 1.0.0 Editions : Platforms : When installing and starting several services on Windows, you may encounter a problem where it is no longer possible to start additional services. Each Service allocates a certain amount of memory from the internal desktop heap space used to store things such as Windows, Fonts, API elements, etc. When this desktop heap is exhaused, user32 system calls will begin to fail. Unfortunately, it is not currently possible to query the Windows system for the amount of available desktop heap space in advance. When the desktop heap available to the Wrapper process is exhaused, you will most likely encounter one of the following errors: Attempting to start a service results in the Service Manager immediately timing out with the following error: Error 1053: The service did not respond to the start or control
In the case of WinNT services the process simply dies for no obvious reason. This error http://ss64.com/nt/syntax-desktopheap.html can occur if the desktop heap in the WIN32 subsystem is depleted; http://www.ibm.com/support/docview.wss?uid=swg21419242 even though you still have plenty of physical and pagefile memory available. Desktop Heap memory is defined in the registry under the (long string) key 'SharedSection':: Default settings Windows XP: HKLM\System\CurrentControlSet\Control\Session Manager\SubSystems %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,3072 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16 In this case out of 1024 defines the system heap size, 3072 controls the size of the interactive desktop heap (used for Windows objects). If a third value is present e.g. "1024,3072,512", this covers the non-interactive desktop heap. All values are KBytes. If the 3rd value is not present non-interactive desktops will default to the same value as interactive desktops (typically out of memory 3072 K). In Vista SP1 or Windows Server 2008 this increases to 12 MB: HKLM\System\CurrentControlSet\Control\Session Manager\SubSystems\Windows SharedSection=1024,12288,512 64-bit Windows has a default interactive desktop heap size of 20MB Microsoft do not recommend that you set a value that is over 20,480 KB for the second SharedSection value. Lower values increase performance at the risk of crashing any process which can run out of resources. For many applications (in Win XP) 3072K is too high, although MS recommend 512 K (in Q142676) for many applications this is too low. 512 K will support approximately 2,500 windows, menus, pens, icons, etc. 1024 K will support approximately 5,000 windows, menus, pens, icons, etc. 3072 K will support approximately 15,000 windows, menus, pens, icons, etc. Because the non-interactive desktop heap is mapped into the address space of each and every process', this value should not be set to an arbitrarily high value, but should only be increased sufficiently to allow all the desired applications to run. Note that many server side applicat
Server parallel engine; Windows 2003 Server is85relnotes is87relnotes is91relnotes Technote (troubleshooting) Problem(Abstract) To run IBM InfoSphere Information Server on Microsoft Windows Server, tune the server engine and configure the parallel engine by running the relevant tasks that follow. Environment Windows Server 2003, 32 bit, Windows Server 2008, 64 bit Resolving the problem Complete only the tasks that are relevant to your operating system. Windows Server 2003, 32 bit (supported by InfoSphere Information Server versions 8.1 and 8.5) 1. Task 1.0: Tuning the server engine for large numbers of users or jobs 2. Task 2.0: Configuring the parallel engine 1. Task 2.1: Registry: Enabling auto-tuning for paged pool size 2. Task 2.2: Registry: Enabling auto-tuning for system page size. 3. Task 2.3: Registry: Setting the threshold for de-committing memory 4. Task 2.4: Registry: Increasing the noninteractive desktop heap size 5. Task 2.5: Registry: Specifying TCP/IP settings 6. Task 2.6: Increasing the Windows page file size 7. Task 2.7: Editing the boot.ini file Windows Server 2008, 32 bit (supported by InfoSphere Information Server versions 8.5, 8.7, and 9.1) 1. Task 1.0: Tuning the server engine for large numbers of users or jobs 2. Task 2.0: Configuring the parallel engine 1. Task 2.1: Registry: Enabling auto-tuning for paged pool size 2. Task 2.2: Registry: Enabling auto-tuning for system page size. 3. Task 2.4: Registry: Increasing the noninteractive desktop heap size 4. Task 2.6: Increasing the Windows page file size 5. Task 2.8 Configure TCP/IP with the registry and command line Windows Server 2008, 64 bit (supported by InfoSphere Information Server versions 8.7 and 9.1) 1. Task 1.0: Tuning the server engine for large numbers of users or jobs 2. Task 2.0: Configuring the parallel engine 1. Task 2.4: Registry: Increasing the noninteractive desktop heap size 2. Task 2.6: Increasing the Windows page file size 3. Task 2.8: Configure TCP/IP with the registry and command line Task 1.0: Tuning the server engine for large numbers of users or jobs For systems that have large numbers of simultaneously connected users or large numbers of simultaneously running jobs, you can configure the server engine to support the number of open files, lock table entries, and locks that are necessary for correct engine operation. To tune the engine, modify settings in the uvconfig file. Before you begin Back up the uvconfig file. By defau