Starting from April 16, 2019, the Oracle Java license has changed for releases. Customers who do not have a commercial license for Oracle JRE, will need to change to use OpenJDK.
Note: UCA supports Zulu OpenJDK since 8.6.0 RTM.
Upgrade UCA
If you are using an old version of UCA, to switch UCA to leverage Zulu OpenJDK, the easiest way is to upgrade to the latest UCA version. The installation takes care of the registry changes automatically.
If Oracle JRE is not uninstalled, UCA installer will still detect it and leverage it in the Storage Engine service and Query Engine service.
Option 1 - Install Zulu Open JDK with UCA server upgraded
Steps:
1. Uninstall Oracle JRE
You may choose to uninstall Oracle JRE on the UCA server or not. If you do, before the uninstall, please stop all UCA services following the next order:
-Data Engine service
-Query Engine service
-Storage Engine service
2. Download the Zulu package from the next URL:
Please choose Java 8, Windows, x86 64-bit, JRE and then download the .msi package.
3. Install the Open Zulu JDK package.
4. Start UCA services following the next order:
-Storage Engine service
-Query Engine service
-Data Engine service
Option 2 - Install Open JDK Zulu without upgrading the software
If you do not want to upgrade UCA right away, please follow the steps below:
Edit registry values (without upgrading UCA)
1. Stop UCA services in the following order.
-Data Engine service
-Query Engine service
-Storage Engine service
2. Open Registry Editor.
3. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Apache Software Foundation\Procrun 2.0\UC-Analytics-Storage-Engine\Parameters\Java.
4. Edit the values of Jvm to C:\Program Files\Zulu\zulu-8-jre\bin\server\jvm.dll.
5. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Apache Software Foundation\Procrun 2.0\UC-Analytics-Query-Engine\Parameters\Java.
6. Edit the values of Jvm to C:\Program Files\Zulu\zulu-8-jre\bin\server\jvm.dll.
7. Start UCA services in the following order.
-Storage Engine service
-Query Engine service
-Data Engine service
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