https://issues.apache.org/bugzilla/show_bug.cgi?id=47678
Summary: Unable to allocate shared memory when using
isapi_redirect.dll as an extension and filter
Product: Tomcat Connectors
Version: 1.2.28
Platform: PC
OS/Version: Windows 2000
Status: NEW
Severity: normal
Priority: P2
Component: isapi
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from [email protected] 2009-08-11 12:21:00 PDT ---
Created an attachment (id=24128)
Added shm_id parameter to fix memory allocation on Win 2k and IIS 5
In Windows 2000 Server with IIS 5.0 when you load the dll as an extension and a
filter, you will get the following error in the connector logs:
[error] jk_isapi_plugin.c (2540): Initializing shm:(null) errno=-1. Load
balancing workers will not function properly.
This error occurs becuse the call to CreateFileMapping fails when trying to
open a file with the same name. This error does not occur on Windows 2003 and
IIS 6 (I assume due to the way application pools are allocated).
To resolve this issue I added a shm_id parameter which is added to the end of
the shm_name to make the name unique. If their is a way to have a global
counter that gets updated each time the dll is loaded, that would work also.
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