SUPPORT / SAMPLES & SAS NOTES
Problem Note 37277: Fragmented memory prevents the Java Web-application server from starting
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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:
*
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.
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
| Product Family | Product | System | SAS Release | |
| Reported | Fixed* | |||
| 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 | ||||