Problem Note 37277: Fragmented memory prevents the Java Web-application server from starting
The Java Virtual Machine (JVM) requires a contiguous block of memory for its heap allocation (see details below). If the required memory is not available in a contiguous block when you execute a Java command, that command fails. The Sun JVM fails in such a scenario with these error messages:
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
Any Java command can fail in this way, but a Java Web-application server on which SAS® Web applications are deployed is particularly vulnerable because of the amount of memory that is required, as follows:
- For the IBM JVM, the size of the required contiguous block of memory is specified by the
–Xmx parameter.
- For the Sun JVM, the size of the required contiguous block of memory is the sum of –Xmx and –MaxPermSize.
Operating System and Release Information
| SAS System | Java Development Kit | Microsoft® Windows® for x64 | | |
| Microsoft Windows 2000 Advanced Server | | |
| Microsoft Windows 2000 Datacenter Server | | |
| Microsoft Windows 2000 Server | | |
| Microsoft Windows Server 2003 Datacenter Edition | | |
| Microsoft Windows Server 2003 Enterprise Edition | | |
| Microsoft Windows Server 2003 Standard Edition | | |
| Microsoft Windows Server 2008 | | |
| Microsoft Windows XP Professional | | |
| 64-bit Enabled AIX | | |
| 64-bit Enabled Solaris | | |
| HP-UX IPF | | |
| Linux | | |
| Linux for x64 | | |
| Solaris for x64 | | |
*
For software releases that are not yet generally available, the Fixed
Release is the software release in which the problem is planned to be
fixed.
| Type: | Problem Note |
| Priority: | medium |
| Date Modified: | 2009-10-06 11:30:11 |
| Date Created: | 2009-09-28 10:33:01 |
