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Hello,</div>
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I'm trying to run Shibboleth 4 behind a pair of load balancers, <span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">and am investigating an issue when users sometimes receive a "Stale Sessions" error when
attempting to login.</span></div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">The logs contain the following WARN messages:</span></div>
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WARN [n.s.i.s.i.StorageBackedIdPSession:115] - Client address x.x.x.x invalid for session 03e...102d bound to y.y.y.y<br>
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x.x.x.x and y.y.y.y are the IP addresses of the load balancers.</div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">Firstly, is this the likely cause of the "Stale Session" error? The message is "WARN" level so I'm not clear if this is just a warning, or causing an actual
error for the user and I'm looking in the wrong place entirely?</span><br>
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Is there any way to disable this IP check on the sessions? Even without the load balancers, with users moving between WiFi networks etc their IP address could change easily so I'd prefer to disable this check.</span></div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;">If this can't be disabled (I can't see a setting for it in the source code <span style="background-color:rgb(255, 255, 255);display:inline !important">StorageBackedIdPSession.java
or parents but might have missed something), what other options are there?</span></span></div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;"><span style="background-color:rgb(255, 255, 255);display:inline !important">I've read the Clustering (<a href="https://wiki.shibboleth.net/confluence/display/IDP4/Clustering" id="LPlnk">https://wiki.shibboleth.net/confluence/display/IDP4/Clustering</a>)
page, but it doesn't mention anything about this. Our backend IdP servers run active/passive so I'm not trying to share state between the IdP instances.</span></span></div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;"><span style="background-color:rgb(255, 255, 255);display:inline !important">Thankyou!</span></span></div>
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<span style="color: rgb(0, 0, 0); font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;"><span style="background-color:rgb(255, 255, 255);display:inline !important">Mark van Rossum</span></span></div>
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