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                                                    <td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://issues.shibboleth.net/jira/browse/IDP" style="color: #3b73af; text-decoration: none">Identity Provider</a> / <a href="https://issues.shibboleth.net/jira/browse/IDP-1631" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-cc8532a1-b9a1-4526-9762-aceb52aded3f" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://issues.shibboleth.net/jira/browse/IDP-1631" style="color: #3b73af; text-decoration: none">IDP-1631</a> </td> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Issue Type:</th> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Affects Versions:</th> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Assignee:</th> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Priority:</th> 
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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Reporter:</th> 
                                                    <td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="19c0881f7fe1add6822e5a951180377236c7cba2449fba38619cfcdeefdb0bec@https://login.idp.eduid.se/idp.xml" id="email_19c0881f7fe1add6822e5a951180377236c7cba2449fba38619cfcdeefdb0bec@https://login.idp.eduid.se/idp.xml" href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=19c0881f7fe1add6822e5a951180377236c7cba2449fba38619cfcdeefdb0bec%40https%3A%2F%2Flogin.idp.eduid.se%2Fidp.xml" style="color:#0052cc;; color: #3b73af; text-decoration: none">Marc Jay</a> </td> 
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                                                    <td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0; margin-top: 0">It appears to be due to the order in which variables are loaded in conf/logback.xml combined with the fact that it is not configured to check for a previous definition first. As of 4.0.1 this file contains:</p> 
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    <!--
    If you want to use custom properties in <span class="code-keyword" style="color: #000091">this</span> config file,
    we load the main property file <span class="code-keyword" style="color: #000091">for</span> you.
    -->
    <variable file=<span class="code-quote" style="color: #009100">"${idp.home}/conf/idp.properties"</span> />
 
    <!-- Location and retention. -->
 
    <variable name=<span class="code-quote" style="color: #009100">"idp.logfiles"</span> value=<span class="code-quote" style="color: #009100">"${idp.home}/logs"</span> />
</pre> 
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                                                        </div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I have tested the following change in logback.xml and I'm seeing that our setting in idp.properties is respected, along with the default if it is not set:</p> 
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    <!-- Location and retention. -->
 
    <variable name=<span class="code-quote" style="color: #009100">"idp.logfiles"</span> value=<span class="code-quote" style="color: #009100">"${idp.logfiles:-${idp.home}/logs}"</span> />
</pre> 
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                                                        </div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Naturally, moving the loading of the <variable file /> below the variable definition also solves the issue.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The impact of this is mitigated by the fact that upgrades do not touch either file. Note that although these general settings have not changed for many releases according to Scott, this issue is new to V4, and it would appear that is due to a commit in V4 that actually fixed a typo in the config before that may have stopped this from working: <a href="https://git.shibboleth.net/view/?p=java-identity-provider.git;a=blobdiff;f=idp-conf/src/main/resources/conf/logback.xml;h=f5d1078ecf5f702c95aea24c789d041e1d8e5199;hp=eeaecf454f1ceefc1b972b644ca40571ad2efbca;hb=da6c9070e58cdbdad68a9d89cc10c995d0d22376;hpb=12e9c375caf83476358e84aa7de03b6dafe9a8ef" class="external-link" target="_blank" rel="nofollow noopener" style="color: #3b73af; text-decoration: none">https://git.shibboleth.net/view/?p=java-identity-provider.git;a=blobdiff;f=idp-conf/src/main/resources/conf/logback.xml;h=f5d1078ecf5f702c95aea24c789d041e1d8e5199;hp=eeaecf454f1ceefc1b972b644ca40571ad2efbca;hb=da6c9070e58cdbdad68a9d89cc10c995d0d22376;hpb=12e9c375caf83476358e84aa7de03b6dafe9a8ef</a></p> </td> 
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