em console is in inactive state and em console it is not opening

It was observed “EM” application was not active under deployments section also have seen LDAP errors in Admin log. So I have brought down Admin server and took backup of changelog.data & changelog.index files under $DomainHome/servers/AdminServer/data/ldap/ldapfiles and removed them. Restarted the admin server successfully, After this activity EM application is Continue Reading

Server failed to start up but Node Manager was not aware of the reason

Server startup failed with below error while trying to start with WLST script:   This Exception occurred at Mon Mar 05 16:28:14 GMT 2018. weblogic.nodemanager.NMException: Received error message from Node Manager Server: [Server start command for WebLogic server ‘osb_server2’ failed due to: [Server failed to start up but Node Manager Continue Reading

Weblogic Admin Server Stuck during Startup

We had Oracle Service Bus 12.1.3 cluster. Admin server happened to restart for some reason. But admin server startup process used to stuck and not move at all. Logs when admin server was stuck listed below: AdminServer.log ####<May 22, 2017 4:23:10 AM PDT> <Info> <Deployer> <serverabc.xyz> <AdminServer> <[STANDBY] ExecuteThread: ‘3’ Continue Reading

Could not find or load main class –cp

I have encountered below error while trying to execute wlst script from command line. In fact, this error could come while executing any java program. Could not find or load main class –cp’. this error was thrown when ‘java –cp /opt/oracle/APP/product/MWHome/wlserver_10.3/server/lib/weblogic.jar  weblogic.WLST ServerStatus.py’ was executed. This issue will come mostly Continue Reading

Main process exited, code=killed, status=11/SEGV – Kube Controller Manager is not coming up

I freshly installed k8s cluster. But when I tried to start cluster, cluster nodes were not coming up. While debugging the issue, noticed following Controller manager error in journalctl. kube-controller-manager.service: Main process exited, code=killed, status=11/SEGV Analysis: Somehow I suspected that it was due to partial download of k8s binaries as Continue Reading