[JIRA] Created: (SSPCPP-416) IIS breaks with error "isapi_shib: Attempted to insert duplicate storage key." Server restart required to fix

[Russell Yount (JIRA)]

IIS breaks with error "isapi_shib: Attempted to insert duplicate storage key." Server restart required to fix
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                 Key: SSPCPP-416
                 URL: https://issues.shibboleth.net/jira/browse/SSPCPP-416
             Project: Shibboleth SP - C++
          Issue Type: Bug
      Security Level: Standard (Standard bug, may impact functionality but does not represent a security vulnerability )
          Components: SAML 2.0 Single Sign-On
    Affects Versions: 2.4.3
         Environment: Windows Server Standard 2008 Service Pack 2, 
IIS7
Shibboleth SP Version 2.4.3 (installed via downloaded installer)
            Reporter: Russell Yount
            Assignee: Scott Cantor
         Attachments: ATTEMPT.txt, FAILURE.txt

The following log messages are seen; system then fails until it is restarted. Web server is fine for a while.
Have tried re-creating problem by changing client's browsers address with no success.
Have attached logs of failure and attempt to recreate failed.

2012-01-10 13:24:47 WARN Shibboleth.SessionCache [8404] isapi_shib: client address mismatch
2012-01-10 13:24:47 WARN Shibboleth.ServiceProvider [8404] isapi_shib: error during session lookup: Your IP address (128.237.28.15) does not match the address recorded at the time the session was established.
2012-01-10 13:24:47 ERROR Shibboleth.Listener [8404] isapi_shib: remoted message returned an error: Attempted to insert duplicate storage key.
2012-01-10 13:24:47 ERROR Shibboleth.ISAPI [8404] isapi_shib: Attempted to insert duplicate storage key.
2012-01-10 13:24:48 ERROR Shibboleth.Listener [8404] isapi_shib: remoted message returned an error: Attempted to insert duplicate storage key.
2012-01-10 13:24:48 ERROR Shibboleth.ISAPI [8404] isapi_shib: Attempted to insert duplicate storage key.
2012-01-10 13:24:48 ERROR Shibboleth.Listener [8404] isapi_shib: remoted message returned an error: Attempted to insert duplicate storage key.
2012-01-10 13:24:48 ERROR Shibboleth.ISAPI [8404] isapi_shib: Attempted to insert duplicate storage key.


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