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<div>So what do your Shibboleth logs say? If nothing, what do your Tomcat (or whatever container you use) logs say? Are you using Terracotta clustering? It can block under certain scenarios.</div>
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<div>Paul</div>
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<span style="font-weight:bold">From: </span><Montoya>, Jose T <<a href="mailto:jtmontoya@mdanderson.org">jtmontoya@mdanderson.org</a>><br>
<span style="font-weight:bold">Reply-To: </span>Shibboleth Users <<a href="mailto:users@shibboleth.net">users@shibboleth.net</a>><br>
<span style="font-weight:bold">Date: </span>Tuesday, May 1, 2012 11:43 AM<br>
<span style="font-weight:bold">To: </span>Shibboleth Users <<a href="mailto:users@shibboleth.net">users@shibboleth.net</a>><br>
<span style="font-weight:bold">Subject: </span>IDP 2.3.6 Stops Sending SAML Responses.<br>
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<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">I’m updating the thread name since it applies to all response from the IDP.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">The scenario:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">The shibboleth IDP starts and runs for a while but eventually stops sending responses. It continues to receive and process incoming requests.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">The browser waits for a redirect from the shibboleth IDP after successful login (I have confirmed this using fiddler and IE).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">The log shows that the SAML response was successfully encoded and the shibboleth Audit Logger does not show a confirmation of what was sent (using
saml1 as a reference).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">From my old days, it looks like a blocked thread or socket. The browser will eventually receive the response, especially when I shut down the idp
(indicating some sort of resource release).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">The issue occurs under heavy load. Last night it ran fine for 12 hours. It was until this morning about 8:00am when usage increases that the symptom
shows up.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">I did not see this behavior in idp v 2.1.5.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">There are no indications of insufficient threads, memory or disk space. I don’t see reaching connection limits as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; ">Ideas?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125); font-family: Calibri, sans-serif; "><o:p> </o:p></span></p>
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