WebLogic Server not coming UP



WebLogic Server not coming UP

a) Description:

Server not coming up after restart. (You will find error in log like: “Could not acquire lock on ldap … already in use …”)

Possible causes: Server did not shutdown properly though in console you will see the status as SHUTDOWN / UNKNOWN.

Solution:

  • Logon to UNIX box.
  • Switch user to the user owning the domain
  • Run “/usr/ucb/ps –auxww | grep ” and see if the process is running.
  • Use “netstat –an | grep ” to see whether any process is listening on the port.
  • If you find the process, kill it using “kill -9 ”
  • Start the server instance.

b) Description:

Server not coming up during admin password change (You will find errors saying “boot identity is not valid …” and “Authentication denied”)

Solution:

If weblogic version is 8.1

  • After doing regular tasks for password change (upto shutdown). After changing the password and shutdown,
    • Logon to UNIX box
    • Go to DOMAIN_HOME
    • For each managed server there will be a folder naming
    • Rename the folders with . (remember to rename not copy)
    • Now start the managed servers. It will start and create the above folders again.

For version 9.2 and 10

  • You will find the folders at DOMAIN_HOME/servers/
  • Follow the same tasks for 8.1
  • Also remember to write the new password in DOMAIN_HOME/boot.properties and DOMAIN_HOME/servers//security/boot.properties