Thanks Tang： 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.
At 2019-04-28 11:54:18, "Yun Tang" <myas...@live.com> wrote: 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 <zhangjunem...@126.com> Sent: Sunday, April 28, 2019 8:24 To: 胡逸才 Cc: imj...@gmail.com; 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 <huyc...@163.com> 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?
