Following your prompt, I deleted the useless parameters from the command line and added your parameters to flink-config.xml, which has been successfully implemented on YARN in the JAVA 7 environment.
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]
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
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?