Re: How to let Flink 1.7.X run Flink session cluster on YARN in Java 7 default environment

Posted by Yun Tang on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/How-to-let-Flink-1-7-X-run-Flink-session-cluster-on-YARN-in-Java-7-default-environment-tp27552p27570.html

Hi Zhangjun

Thanks for your reply!

However, Flink user mailing list is tracked in English and user-zh mailing list is specific for Chinese. Reply in Chinese in flink user mailing list would be somehow unfriendly for those non-Chinese speakers.

I think your reply could be translated as official requirements.[1]

[1] https://ci.apache.org/projects/flink/flink-docs-release-1.8/dev/projectsetup/java_api_quickstart.html#requirements

---

From: 126 <[hidden email]>
Sent: Sunday, April 28, 2019 8:24
To: 胡逸才
Cc: [hidden email]; dev; user
Subject: Re: How to let Flink 1.7.X run Flink session cluster on YARN in Java 7 default environment

 

Flink源码中用到了很多java1.8的特性，所以用jdk1.7是不行的

发自我的 iPhone

在 2019年4月26日，17:48，胡逸才 <[hidden email]> 写道：

At present, all YARN clusters adopt JAVA 7 environment.

While trying to use FLINK to handle the deployment of flow processing business scenarios, it was found that FLINK ON YARN mode always failed to perform a session task. The application log of YARN shows Unsupported major. minor version 52.0.

I tried to add env. java. home: < JDK 1.8PATH > in flink-conf. yaml of the mailing list solution. And the startup command adds -yD yarn. taskmanager. env. JAVA_HOME= < JDK1.8PATH>、-yD containerized. master. env. JAVA_HOME= < JDK1.8PATH>, -yD containerized. taskmanager. env. JAVA_HOME= < JDK1.8PATH>. Flink session cluster in YARN can not run Application in JAVA 8 environment.

So can I use Flink1.7.X submit Flink session cluster application in YARN under JAVA 7 environment?