Lionel FÉLICITÉ added a comment - 2018-04-26 18:20 - edited Hi, I upgrade from 2.107 to 2.116 with rundeck plugin 3.6.4 and at first reboot, I lost my global rundeck conf In log file, I got org.rundeck.api.RundeckClient in file:/data/jenkins/plugins/rundeck/WEB-INF/lib/rundeck-api-java-client-13.2.jar might be dangerous, so rejecting; see https: //jenkins.io/redirect/ class- filter/ org.jenkinsci.plugins.rundeck.RundeckNotifier$RundeckDescriptor initializeRundeckJobCache Rundeck job cache DISABLED. org.jenkinsci.plugins.rundeck.cache.DummyRundeckJobCache invalidate Later, I got org.jenkinsci.remoting.util.AnonymousClassWarnings warn Attempt to (de-)serialize anonymous class hudson.model.ParametersDefinitionProperty$1 in file:/ var /cache/jenkins/war/WEB-INF/lib/jenkins-core-2.116.jar; see: https: //jenkins.io/redirect/serialization-of-anonymous-classes org.jenkinsci.plugins.rundeck.RundeckNotifier getProjectAction Unable to create rundeck job project linked action for 'JOB XXXX' . Exception: IllegalArgumentException: rundeckClient should not be null ! In Jenkins UI, I got (i forgot to get the exact message) some "data stored in an older format and/or unreadable data." When I go to "/jenkins/configure", here's what I got logged cf . stack_01.txt When I host "save": cf. stack_02.txt I downgrade jenkins back to 2.107: I still got the same errors, even with rundeck plugin 3.6.3    

Alex Mikhnenko added a comment - 2018-06-22 13:04 - edited We are experiencing the same issue: Rundeck configuration disappears once jenkins is updated with new version. JobConfigHistory shows that configuration update is performed under user who is doing Jenkins update via WebUI Rundeck Plugin 3.6.x, Jenkins 2.107.x