Samza master branch does not build on Open JDK 11. It fails with a Gradle issue. Opened an issue with Gradle here: https://github.com/gradle/gradle/issues/6981
”Could not determine java version from '11'.” I Tried running all the dependencies in Hello-Samza via Grid. Yarn behaved as I expected and did not start. It is likely that Yarn is the biggest risk. Hadoop-2.6.1 - does not start on Open JDK 11 Kafka-2.11-0.10.2.1 - does not start on Open JDK 11 Zookeeper-3.4.3 - starts on Open JDK 11 I updated Grid to recent versions and Yarn continued to misbehave: Hadoop: 3.1.1 - Does not start on Open JDK 11 Kafka: - 2.11-2.0.0 - Starts on Open JDK 11 Zookeeper: 3.4.13 - Starts on Open JDK 11 I can’t really test anything interesting until Yarn can play nice on JDK 11. Jeremiah Adams Software Engineer www.helixeducation.com Blog | Twitter | Facebook | LinkedIn ________________________________________ From: Yi Pan <nickpa...@gmail.com> Sent: Tuesday, September 25, 2018 9:09 AM To: dev@samza.apache.org Subject: Re: Java 11, Oracle Java and OpenJDK Release Cadence Hey, Jeremiah, Sorry to reply late. The team is pretty busy for Samza 1.0 preparation these days. Regarding to Java 11 and the steps forward: 1. I don't have objection to adopt OpenJDK, as long as Samza code and compile and run on it. It might be an interesting issue since Samza also depends on other open source projects (like ZooKeeper and Kafka) which may not be test w/ OpenJDK yet. 2. It would be great if you can have some test build/run of Samza with Java 11 (I assume with OpenJDK?) and report the results back to the community 3. We can start a formal poll and vote when we know what it takes to adopt OpenJDK Does that sound good to you? Thanks! -Yi
