Red Hat Open JDK in place of agent 11.5 bundled JRE

[Chuck Perilli]

We need to update the JRE bundled with 11.5 on our Red Hat 7.9 servers.  Since the JRE is no longer free from Oracle, do you see any reason why the Red Hat Open JDK would not be a good alternative?  Thanks...

-Chuck

[Rick Romanowski]

We have stopped using the Bundled JRE included with the Agent and have used the Linux System OpenJDK Runtime Environment since the beginning of 2021 and had no issues.

To do the conversion a Linux script was created to take care of the Linux tasks and copied to all Linux servers with ESP Agents.

An ESP PROC was created to:

• Verify Agent Functionality before
• Quiesce the Agent
• Inform Implementer to run Linux Script
• Restart the Agent after Linux Script completed
• Verify Agent Functionality after

The ESP PROC was triggered with the Agent name for each Linux server.

Let me know if you have any questions.

[Chuck Perilli]

Thanks for the info!

 

-Chuck

 

[Chuck Perilli]

Does look like what we need?
https://jdk.java.net/18/

Thanks...

[Rick Romanowski]

Prior to downloading anything, first check if java is installed on your server:

java -version

If you get a response then Java is already installed.

If it is installed you should check which group owns it and if they update it as needed.

If you download Java, then you are responsible for keeping it up to date.

[Chuck Perilli]

The only Java we need to maintain is in the agent directory:
/opt/esp/jre/bin> ./java -version
openjdk version "1.8.0_222"
OpenJDK Runtime Environment (build 1.8.0_222-b10)
Eclipse OpenJ9 VM (build openj9-0.15.1, JRE 1.8.0 Linux amd64-64-Bit Compressed References 20190717_368 (JIT enabled, AOT enabled)
OpenJ9 - 0f66c6431
OMR - ec782f26
JCL - f147086df1e based on jdk8u222-b10)

What is currently there is what came bundled in the agent 11.5 install. The actual install and updating of the JRE will be handled be our UNIX Engineering team. They are asking us to provide the package we want installed and will then and maintain it after that. I'm just trying to decide the appropriate package to install. Thanks...


Chuck Perilli
ISD Principal Engineer
IT Process Automation | Service Operations
Navy Federal Credit Union | Headquarters
703-206-4547 (office) | 571-205-7383 (mobile)

[Rick Romanowski]

I recommend the "latest" version.

We are currently running 322

java -versionopenjdk version "1.8.0_322"

OpenJDK Runtime Environment (build 1.8.0_322-b06)

OpenJDK 64-Bit Server VM (build 25.322-b06, mixed mode)