|Configuring the Native Client Cache / Cache Management|
This section provides troubleshooting information for the native client.
Can't get Windows performance data. RegQueryValueEx returned 5This can occur because incorrect information is returned when a Win32 application calls the ANSI version of RegQueryValueEx Win32 API with HKEY_PERFORMANCE_DATA. This error is described in Microsoft KB article ID 226371 at http://support.microsoft.com/kb/226371/en-us.
HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Windows NT\ CurrentVersion\ Perflib
An example of reasonable security on the performance data would be to grant administrators KEY_ALL_ACCESS and interactive users KEY_READ access. This particular configuration prevents non-administrator remote users from querying performance data.
See http://support.microsoft.com/kb/310426 and http://support.microsoft.com/kb/146906 for instructions about how to ensure that GemFire processes have access to the registry keys associated with performance.
You can generate a process memory dump image (core files in Unix systems and minidumps in Windows). The image is produced when a fatal error occurs that normally terminates the program.
When the system property crash-dump-enabled is set to true, a dump image is generated (the default is true). The dump file is generated in the same location as the log-file directory, and has the same prefix as the log file. The name is <prefix>-<time>.core.<pid> in Unix, and <prefix>-<time>-<pid>.dmp in Windows).
Unix systems generate core files automatically for such errors, but this option is useful for providing a custom location and name, as well as for systems where core dump generation is disabled. For Unix, when system core dump generation is turned on (ulimit -c) this property can be set to false.
For .NET clients, when this property is set then AccessViolation exceptions are trapped and a crash dump is created to assist with further analysis. Applications receive a FatalInternalException for this case, with the InnerException set to the originating AccessViolationException.
This requires the availability of dbghelp.dll on Windows, either in the same directory as gfcppcache.dll or in the system PATH. The file is installed by default, though for Windows 2000 a newer version may be required for minidumps. For Unix systems, the gcore command should be available (gdb > 5.2 on Linux; available by default in Solaris).