QQ: JDK Version for Elasticsearch

[gerryvz]

I am running Elasticsearch 7.6.2 on top of Java 11. When I upgraded to ES 7.6 from ES 6.8, I upgraded from Oracle JDK8 to OpenJDK 11 (both LTS versions).

Oracle just announced Java 14 (non-LTS) last month, with Java 17 (the next LTS version of Java) to be released in 2021.

My question is, is anyone using Elasticsearch with XenForo with a version of Java newer than Java 11? Just wondering if things are compatible.

 

[Mr. Jinx]

I am and I think this is where my problems started
Not sure though, but everything was running fine until I did 'apt-get update' yesterday on Ubuntu.
Elasticsearch didn't start and I got this error.

node validation exception\n[1] bootstrap checks failed\n[1]: JVM is using the serial collector but should not be for the best performance; either it's the default for the VM [OpenJDK 64-Bit Server VM] or -XX:+UseSerialGC was explicitly specified

To get things running I had to comment out -Des.enforce.bootstrap.checks=true from jvm.options

 

[gerryvz]

Interesting. I've updated a few times to the latest ES (7.7) and it's been working fine. Haven't updated Java past 11, though.

After updating ES, I always go in with a service elasticsearch restart and it has restarted just fine.

 

[bzcomputers]

This is an old question with updated answers...

Elasticsearch JDK support options:

Support Matrix

The tables below display platform and software configurations that are eligible for support under our subscription offerings. Learn more about our Support Policy and product End of Life poli...

www.elastic.co

Oracle Java Support Roadmap:

https://www.oracle.com/java/technologies/java-se-support-roadmap.html

Current (Older) LTS Java - Java 8 - Released: March 2014, Premier Support: March 2022, Extended Support: December 2030*
Current (New) LTS Java - Java 17 - Released: September 2021, Premier Support: September 2026*, Extended Support: September 2029*
Upcoming LTS Java - Java 21 - Releasing: September 2023, Premier Support: September 2028, Extended Support: September 2031

* - possibly longer

The latest Elasticsearch 8.5.3 (released Dec. 6, 2022) is said to support Java 17, Java 18, and Java 19. I have personally seen it running on Java 8 with no obvious issues, but it is officially not a supported java version for Elasticsearch since 8.0+.

 

[gerryvz]

What is the version of Java that most folks are running at present?

I've been running Elasticsearch 7.17.8 on Java 11 with no issues.

 

[Deebs]

ElasticSearch ships with a JRE within the RPM/DEB file and uses that over the OS installed version;