Datasource monitoring is one of the key monitoring topics in weblogic based applications. We have been using simple WLST script to alert us when a datasource is not working properly. Most of the times, root cause will be a intermittent network/DB issue. To recover from the issue, we will reset/restart Continue Reading
soa
How to find the endpoint a java thread is reading from
We may experience performance problems due to stuck threads i.e., when the thread is not making any progress and just stuck. Typically this may be due to contention with other threads, waiting for an event or waiting for data to be arrived on a network connection. This blog post is Continue Reading
Weblogic Managed Server Start Hanging after Deployment
We have a 4 node test SOA/Weblogic cluster. After CI deployment, the pipeline automatically restarted SOA managed servers. But managed servers in all 4 nodes stuck in STARTING state. We faced similar startup issues earlier. So, revisited these pages: Issue 1, Issue 2, Issue 3, Issue 4, to check if Continue Reading
How to get weblogic password without using wlst
There is a simpler and quicker of getting weblogic password without using wlst script. But the caveat is that password should have already been present in boot.properties file. Start the application using strace and you can view the password in strace output file. Here is sample command: strace -s 400 Continue Reading
Useful bashrc files
We as sysadmin spend lot of time at command line and most of the time we use few regular commands like going to logs directory, searching history. I have prepared bash aliases that can be used to save few keystrokes for various applications like weblogic, kubernetes, Boomi etc. And these Continue Reading
Weblogic server goes to FAILED_NOT_RESTARTABLE state
We have two node weblogic domain with SOA, OSB, ESS and WSM clusters. Server on one of the nodes was going to FAILED state and was not returning to RUNNING state even after multiple restarts. Logs have following messages: The error message was similar to one of the earlier issues Continue Reading
SOA Composite Deployment Fails when Size of Jar is Huge
We were trying to deploy a composite from em console and it got failed with below error. We checked server logs as em console didn’t through enough information. We found following error message in logs: Oct 6, 2020 4:43:10,904 AM UTC Error HTTP abc.xyz wls_soa1 ExecuteThread: ‘0’ for queue: ‘weblogic.socket.Muxer’ Continue Reading
How to change Java heap settings in SOA/OSB 12.2.1.4.0
In 12.2.1.4.0, oracle came up with reference configuration. What it means is that by default soa/osb comes up with some tuning parameters e.g., JTA timeout values, datasource connections, Java heap settings Xms and Xmx. The default Xms and Xmx values are 4 GB for Admin server and 8 GB for Continue Reading
SOA Domain Creation Failure – CFGFWK-64038: The app-svc name “ESSAPP” must have target
We were building a domain with both SOA and ESS in same cluster. We got below error in domain configuration wizard during domain creation. CFGFWK-64254: Error occurred in “Artifacts Generation” phase executionEncountered Error: CFGFWK-64038: The app-svc name “ESSAPP” must have target.CFGFWK-64038: The app-svc name “ESSAPP” must have target.CFGFWK-64038: Provide a Continue Reading