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After OHS 12.2.1.4 installation and reconfiguration, proceed to upgrade domain and system component configurations to 12.2.1.4.
Ensure JVM character encoding is set to UTF-8 for the platform prior to invoking UA so as not to run into Unicode characters-related upgrade issues.
Start the Upgrade Assistant
cd $NEW_ORACLE_HOME/oracle_common/upgrade/bin
./ua
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NOTE: If the upgrade fails, restore to pre-upgrade environment from backup and make the necessary fixes before restarting the UA.
Refer the logs at $ORACLE_HOME/oracle_common/upgrade/logs.
Post Upgrade validation
To verify whether or not the upgrade was successful, start the Node Manager and Standalone OHS component.
cd $DOMAIN_HOME/bin
nohup ./startNodeManager.sh > nodemanager.log &
cd $DOMAIN_HOME/bin
./startComponent.sh ohs1
Starting system Component ohs1 …
Initializing WebLogic Scripting Tool (WLST) …
Welcome to WebLogic Server Administration Scripting Shell
Type help() for help on available commands
Reading domain from /u02/private/oracle/config/domains/ohs
Connecting to Node Manager …
Successfully Connected to Node Manager.
Starting server ohs1 …
Successfully started server ohs1 …
Successfully disconnected from Node Manager.
Exiting WebLogic Scripting Tool.
Done
Additionally, the following steps are recommended to verify a successful upgrade.
— From $ORACLE_HOME/oui/bin
cd $ORACLE_HOME/oui/bin
./viewInventory.sh | grep “FeatureSet: ohs”
FeatureSet: ohs 12.2.1.4.0
FeatureSet: ohs_standalone 12.2.1.4.0
— From Inventory log file
cd $ORACLE_HOME/OPatch
./opatch lsinventory -details
view /u01/oracle/products/12.2.1.4/web/cfgtoollogs/opatch/opatch2023-04-20_17-18-38PM_1.log
[Apr 20, 2023 5:18:43 PM] [INFO] Oracle HTTP Server 12.2.1.4.0
— From Domain configuration file
grep “domain-version” $DOMAIN_HOME/config/config.xml
12.2.1.4.0
References: Upgrading a Standalone Oracle HTTP Server from a previous 12c release