https://community.appian.com/support/w/kb/423/kb-1207-users-are-unable-to-log-in-to-appian-and-a-user-does-not-exist-error-is-thrown-in-the-application-server-logen-USTelligent Community 12https://community.appian.com/support/w/kb/423/kb-1207-users-are-unable-to-log-in-to-appian-and-a-user-does-not-exist-error-is-thrown-in-the-application-server-logMon, 23 Jul 2018 17:37:37 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:f4fa1eb1-011d-4936-9eea-f6b8c68d691aJordan Horwathttps://community.appian.com/support/w/kb/423/kb-1207-users-are-unable-to-log-in-to-appian-and-a-user-does-not-exist-error-is-thrown-in-the-application-server-log#commentsCurrent Revision posted to Appian Knowledge Base by Jordan Horwat on 7/23/2018 5:37:37 PM<br /> <div class="row content_container"> <div class="row content_container"> <h2 id="symptoms">Symptoms</h2> <p>Certain users are unable to login to the site and fail with the following error in the logs:</p> <pre><code>ERROR com.appiancorp.security.auth.AppianPortalSessionAuthenticationStrategy - com.appiancorp.suiteapi.common.exceptions.InvalidUserException: User does not exist </code></pre> <p>Running a <code>checkengine -s -u</code> lists the missing user in its output as well.</p> <h2 id="cause">Cause</h2> <p>This usually happens when the users aren&rsquo;t propagated across all engines.</p> <p>If the rename plugin was used for this user, do NOT follow the action listed below. Open a support case to investigate this further.</p> <p>If this is after a migration, verify the logs of type <strong>db_*.log</strong> for all Appian engines and confirm the migration message appears on all of them and that the ID of the engine database file <strong>*.kdb</strong> corresponds to the migrated one.</p> <h2 id="action">Action</h2> <p>Run the checkengine script with the <code>cu</code> flags, so it would look like <code>./checkengine.sh -cu</code>. If you execute this script after running the Rename User plug-in, this could cause further problems. Please open a support case if the above symptoms come up after running the missing user plug-in.</p> <p>More information on the checkengine script can be found <a href="https://docs.appian.com/suite/help/latest/Troubleshooting_with_Diagnostic_Scripts.html">here</a></p> <h2 id="affected-versions">Affected Versions</h2> <p>This article applies to Appian 16.1 and earlier.</p> </div> <p>Last Reviewed: July 2016</p> </div><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: engines, installation, users, upgrade, infrastructure</div> https://community.appian.com/support/w/kb/423/kb-1207-users-are-unable-to-log-in-to-appian-and-a-user-does-not-exist-error-is-thrown-in-the-application-server-log/revision/1Mon, 06 Mar 2017 20:41:46 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:f4fa1eb1-011d-4936-9eea-f6b8c68d691aNick Vigilantehttps://community.appian.com/support/w/kb/423/kb-1207-users-are-unable-to-log-in-to-appian-and-a-user-does-not-exist-error-is-thrown-in-the-application-server-log#commentsRevision 1 posted to Appian Knowledge Base by Nick Vigilante on 3/6/2017 8:41:46 PM<br /> <div class="row content_container"> <div class="row content_container"> <h2 id="symptoms">Symptoms</h2> <p>Certain users are unable to login to the site and fail with the following error in the logs:</p> <pre><code>ERROR com.appiancorp.security.auth.AppianPortalSessionAuthenticationStrategy - com.appiancorp.suiteapi.common.exceptions.InvalidUserException: User does not exist </code></pre> <p>Running a <code>checkengine -s -u</code> lists the missing user in its output as well.</p> <h2 id="cause">Cause</h2> <p>This usually happens when the users aren&rsquo;t propagated across all engines.</p> <p>If the rename plugin was used for this user, do NOT follow the action listed below. Open a support case to investigate this further.</p> <p>If this is after a migration, verify the logs of type <strong>db_*.log</strong> for all Appian engines and confirm the migration message appears on all of them and that the ID of the engine database file <strong>*.kdb</strong> corresponds to the migrated one.</p> <h2 id="action">Action</h2> <p>Run the checkengine script with the <code>cu</code> flags, so it would look like <code>./checkengine.sh -cu</code>. If you execute this script after running the Rename User plug-in, this could cause further problems. Please open a support case if the above symptoms come up after running the missing user plug-in.</p> <p>More information on the checkengine script can be found <a href="https://docs.appian.com/suite/help/latest/Troubleshooting_with_Diagnostic_Scripts.html">here</a></p> <h2 id="affected-versions">Affected Versions</h2> <p>This article applies to Appian 16.1 and earlier.</p> </div> <p>Last Reviewed: July 2016</p> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: engines, users, upgrade</div>