Oracle Weblogic 12.2.1.3.0

60820: Select a domain which is a compatible with this environment.

stopComponent.sh and startComponent.sh gives the following errors

Welcome to WebLogic Server Administration Scripting Shell

Type help() for help on available commands

Reading domain from /<PATH>/user_projects/domains/IDMDomain

Error: runCmd() failed. Do dumpStack() to see details.

Error: Error reading domain:

60820: Unsupported Domain

60820: This domain is a managed domain. It has been scaled out from the original domain.

60820: Select a domain which is a compatible with this environment.

Exiting WebLogic Scripting Tool.

Solution: 

Oracle Doc 2380467.1

This condition is a result of Bug 25964279 (internal / not published in MOS).  Due to Bug 25964279, the startComponent.sh and stopComponent.sh scripts can only successfully complete from the first node in an OID 12c collocated cluster.

 

Execute the startComponent.sh and stopComponent.sh scripts only from the first server node in the collocated cluster.

Alternately an OID instance may be started from a WLST session with one of the following commands :

WLST connected to the AdminServer:
start('<COMPONENT_NAME>')

WLST connected to the target NodeManager:
nmStart(serverName='<COMPONENT_NAME>',serverType='OID')

Replace '<COMPONENT_NAME>' with the OID component name, e.g. 'oid1' or 'oid2'

 Oracle FMW 12.2.1.3.0 Error: Error reading domain: 60820: Unsupported Domain

60820: This domain is a managed domain. It has been scaled out from the original domain.

Starting system Component ohs01 ...

Initializing WebLogic Scripting Tool (WLST) ...

Welcome to WebLogic Server Administration Scripting Shell

Type help() for help on available commands

Reading domain from /u01/oracle/product/fmw/wl_home/user_projects/domains/wl_domain

Error: runCmd() failed. Do dumpStack() to see details.

Error: Error reading domain:

60820: Unsupported Domain

60820: This domain is a managed domain. It has been scaled out from the original domain.

60820: Select a domain which is a compatible with this environment.

Exiting WebLogic Scripting Tool.

Done

Cause:

Oracle Support Document: 2723339.1

The issue was happening because the pack command is being run using -managed=true option on a domain that's already created using unpack command, as following:

     a. Host 1 has a WebLogic domain with Admin and a managed server - Execute pack command with -managed=true option.

     b. Host 2 - Execute unpack command.

     c. Host 2 - Execute pack command with -managed=true option.

     d. Host 3 - Execute unpack command and it will fail with 60820: This domain is a managed domain. It has been scaled out from the original domain

 Solution:

Do not extend a domain which is already created using unpack after it's pack was run using -managed=true option.

In order to extend a domain pack should be executed on the host where the domain was created originally using the config wizard or unpack was executed on a host after it's pack was run using -managed=false option

ASM instance warning message in alert log file

“Warning: VKTM detected a time drift”

  Solution

Usually VKTM and VKRM issues come together, at least when you are using the resource manager. 

The VTKM is the Virtual Keeper of Time Process. The VKTM acts as a time publisher for an Oracle instance.  VKTM publishes two sets of time: a wall clock time using a seconds interval and a higher resolution time (which is not wall clock time) for interval measurements.  

The VKTM process is a process that is available in ASM instances and RDBMS instances. So if you see issues with VKTM process, it usually pops up on both. VKTM usage is affected mainly by two hidden parameters _timer_precision and _disable_highres_ticks. So, tuning these parameters can bring down VKTM CPU consumption.

The VKRM process is the Virtual Scheduler for Resource Manager Process, and it serves as centralized scheduler for Resource Manager activity. As there is no resource manager on a ASM instance, you will see this process only on RDBMS instances.

For version 11.2.0.1, Apply patch for Bug 9843304.  This Bug is already fixed in 11.2.0.2

For 11.2.0.2 and 11.2.0.3, apply patch for Bug 11837095, This Bug is already fixed in 11.2.0.4

If patch is not available then please raise SR with Oracle Support.

Add the following even in spfile or pfile.

event="10795 trace name context forever, level 2"

Oracle Grid Infrastructure CRS status showing offline

Oracle GI CRS status is showing offline in Red Hat Linux, and because CRS is not up and running, it won't allow ASM instance to start.

check the status of the GI resource

login with "grid" os user and run the following command

[root@oracle12cdb1 bin]# ./crsctl status res -t

--------------------------------------------------------------------------------

Name           Target  State        Server                   State details

--------------------------------------------------------------------------------

Local Resources

--------------------------------------------------------------------------------

ora.CRS.dg

               OFFLINE  OFFLINE       oracle12cdb1             STABLE

ora.DATA.dg

               OFFLINE  OFFLINE       oracle12cdb1             STABLE

ora.FRS.dg

               OFFLINE  OFFLINE       oracle12cdb1             STABLE

ora.LISTENER.lsnr

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.LISTENER12C.lsnr

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.asm

               OFFKINE  OFFLINE       oracle12cdb1             STABLE

ora.ons

               OFFLINE OFFLINE      oracle12cdb1             STABLE

--------------------------------------------------------------------------------

Cluster Resources

--------------------------------------------------------------------------------

ora.cssd

      1        ONLINE  ONLINE       oracle12cdb1             STABLE

ora.diskmon

      1        OFFLINE OFFLINE                               STABLE

ora.evmd

      1        ONLINE  ONLINE       oracle12cdb1             STABLE

ora.ora12cr2global.db

      1        ONLINE  OFFLINE                               STABLE

--------------------------------------------------------------------------------

- To resolve the issue, do the following command, please take all the backups of GI , CRS 

run the following command

                  crsctl stop res ora.CRS.dg -init

                  

                    crsctl status res -t

                  

                    crsctl modify res ora.CRS.dg -attr ENABLED=0 -init

                   

                     crsctl status res -t

                   

                    crsctl modify res ora.CRS.dg -attr ENABLED=1 -init

                   

                    crsctl status res -t

                    crsctl start res ora.CRS.dg -init

[grid@oracle12cdb1 ~]$ crsctl status res -t

--------------------------------------------------------------------------------

Name           Target  State        Server                   State details

--------------------------------------------------------------------------------

Local Resources

--------------------------------------------------------------------------------

ora.CRS.dg

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.DATA.dg

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.FRS.dg

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.LISTENER.lsnr

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.LISTENER12C.lsnr

               ONLINE  ONLINE       oracle12cdb1             STABLE

ora.asm

               ONLINE  ONLINE       oracle12cdb1             Started,STABLE

ora.ons

               OFFLINE OFFLINE      oracle12cdb1             STABLE

--------------------------------------------------------------------------------

Cluster Resources

--------------------------------------------------------------------------------

ora.cssd

      1        ONLINE  ONLINE       oracle12cdb1             STABLE

ora.diskmon

      1        OFFLINE OFFLINE                               STABLE

ora.evmd

      1        ONLINE  ONLINE       oracle12cdb1             STABLE

ora.ora12cr2global.db

      1        ONLINE  OFFLINE                               STABLE

Oracle Weblogic handson labs 

Following link is very useful to practice the Oracle Weblgoic basics, it will give you a lab where you can do hanson practice and learn and clear your concepts, enjoy :)

https://luna.oracle.com/lab/77b25364-204a-4ed0-9dc8-6e993fe1e659

open a EM express port 5500 in Oracle Linux

[root@oracle12cdb1 ~]# firewall-cmd --permanent --add-port=5500/tcp

success

[root@oracle12cdb1 ~]# firewall-cmd --reload

success

 

orainstRoot.sh and root.sh scripts post CRS install

[root@oracle12cdb1 app]# /u01/app/oraInventory/orainstRoot.sh

Changing permissions of /u01/app/oraInventory.

Adding read,write permissions for group.

Removing read,write,execute permissions for world.

Changing groupname of /u01/app/oraInventory to oinstall.

The execution of the script is complete.

[root@oracle12cdb1 app]# /u01/app/grid/12.2.0/grid_home/root.sh

Performing root user operation.

The following environment variables are set as:

    ORACLE_OWNER= grid

    ORACLE_HOME=  /u01/app/grid/12.2.0/grid_home

Enter the full pathname of the local bin directory: [/usr/local/bin]:

   Copying dbhome to /usr/local/bin ...

   Copying oraenv to /usr/local/bin ...

   Copying coraenv to /usr/local/bin ...

Creating /etc/oratab file...

Entries will be added to the /etc/oratab file as needed by

Database Configuration Assistant when a database is created

Finished running generic part of root script.

Now product-specific root actions will be performed.

Using configuration parameter file: /u01/app/grid/12.2.0/grid_home/crs/install/crsconfig_params

The log of current session can be found at:

  /u01/app/grid/crsdata/oracle12cdb1/crsconfig/roothas_2022-06-19_00-38-46AM.log

2022/06/19 00:38:47 CLSRSC-363: User ignored prerequisites during installation

LOCAL ADD MODE

Creating OCR keys for user 'grid', privgrp 'oinstall'..

Operation successful.

LOCAL ONLY MODE

Successfully accumulated necessary OCR keys.

Creating OCR keys for user 'root', privgrp 'root'..

Operation successful.