Answer / vishal singh

Troubleshooting in weblogic is find out the cause(Server
fail, Server shutdown, SSL issue, Thread stuck, etc…) of
weblogic server failure if it occur by servers logs,

Answer / sunil

Troubleshooting of weblogic server:
fails to start weblogic instances
maintenance of Admin server as well all managed
servers..etc...

Answer / avinash

You can also troubleshoot the outofmemory(OOM) or server
hanging issues by taking a thread dump of the server. in
unix use kill -3 pid command. in windows i am not very
sure. this gives a snapshot of the threads running in the
server at the time of issue.

Answer / ram

Trouble shooting is the find of the cause of weblogic server
fails if it occur by server logs.we can take the thread dump
of the server kill -3 pid.

Answer / lakshmi

Trouble shooting starts with identifying the root cause.
Steps to follow:
1. check the logs
   usually trouble shooting starts with checking the logs.
2. enable debug
   (JAVA_OPTIONS=-verbose)
   through this we can identify which part of the code is      causing the problem.
3. take a thread dump
   kill -3 PID
4. take a heap dump
   jmap -heap:format=b PID
5. enable GC logs and analyze
   use GC viewer
these all are offline trouble shooting techniques. there is an imp technique, i.e.,
6. jconsole
   it connects to live jvm and makes an analysis through    profiling. it is a debugger and it makes a live          analysis.
if still problem raises,
7. service request
   here, oracle provides an oracle diagnostic agent called ODA. if still not solved, oracle tells you either to wait or upgrade.

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