We can get all source and target hostnames configured in MFT following below steps: 1. Export MFT configuration from MFT console or using WLST command. Let us call this export hosts.txt. 2. Run below awk command to get list of configured host names: awk -F’host=’ ‘ { print $2 } Continue Reading
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
How Does Oracle Middleware Products Work even without SQL Client Installed?
Did you ever wonder how Oracle Middleware products communicate with Oracle database even without sql client installed in the machine while some of other products require sql client? Weblogic uses JDBC Type 4 driver that uses Java to connect directly to Oracle. It implements Oracle’s SQL*Net Net8 and TTC adapters 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
Cheatsheet – Bash Command Line Movements
ctrl-a – move the cursor to the beginning of the current line ctrl-e – move the cursor to the end of the current line alt-b – move the cursor backwards one word alt-f – move the cursor forward one word ctrl-k – delete from cursor to the end of the 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
Cryptic SOA Composite Deployment Error
Today I have developed a SOA composite that exposes REST service. It takes the input payload and does little transformation and inserts data into EBS database. When tried to deploy composite from em console, it was taking lot of time and eventually timing out after 20 mins. Following is the Continue Reading