Domain might be locked by some other WLS user process

Error:-

Validating configuration on node: [upgebs].

    Log: /u01/applmgr/upg/fs_ne/EBSapps/log/adop/10/20200304_084950/fs_clone/validate/upgebs

[WARNING]: There could be issues while validating the ports used for E-Business Suite instance against ports used in /etc/services. Refer the log file for more details.

               [ERROR]: Domain might be locked by some other WLS user process

    [UNEXPECTED]Error occurred running "perl /u01/applmgr/upg/fs2/EBSapps/appl/ad/12.0.0/patch/115/bin/txkADOPValidations.pl -contextfile=/u01/applmgr/upg/fs2/inst/apps/DELL_upgebs/appl/admin/DELL_upgebs.xml -patchctxfile=/u01/applmgr/upg/fs1/inst/apps/DELL_upgebs/appl/admin/DELL_upgebs.xml -phase=fs_clone -logloc=/u01/applmgr/upg/fs_ne/EBSapps/log/adop/10/20200304_084950/fs_clone/validate/upgebs -promptmsg=hide"

    [UNEXPECTED]Error 1 occurred while Executing txkADOPValidation script on upgebs

Note: When you run adop phase=fs_clone or phase=prepare below error is accruing here.

Solution:-

To resolve the issue test the following steps in a development instance and then migrate accordingly:

1. Start the admin server on the run file system (if not started already).

2. Login in to WLS Admin Console (http(s)://hostname.domain:<adminport>/console)

3. Click on the "Activate Changes" or the "Release Configuration" button (depending on the version) in the "Change Center" region on the top left corner.

4. Logout of the WLS console.

5. Rerun the adop phase=prepare command and confirm adop completes successfully.

Document: 12.2 ADOP Prepare Phase Fails with message " [ERROR]: Domain might be locked by some other WLS user process" and "[UNEXPECTED] Error 1 occurred while Executing txkADOPValidation script" (Doc ID 2042785.1)