Glad to hear this message! Paul Lam <paullin3...@gmail.com> 于2018年8月30日周四 上午10:35写道：
> Hi vino, > > Yes, I’m trying to set Java 8 environment for Flink job, but YARN is > running on Java 7 which I can’t change. > > I find the solution in the mail list you referred to. It turns out that I > was using a wrong key to set Java home for the jobmanager, and the right > key should be “containerized.master.env.JAVA_HOME”. > > Thank you very much! > > Best, > Paul Lam > > 在 2018年8月30日，10:09，vino yang <yanghua1...@gmail.com> 写道： > > Hi Paul, > > This exception means that the jdk version of the execution code is lower > than the compiled jdk version. > 52 means that the JDK version that compiles it is 1.8. > There is information that Flink 1.4 has removed support for Java 7, so > your current best choice is to use JDK 1.8.[1] > > [1]: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flink-1-4-0-can-not-override-JAVA-HOME-for-single-job-deployment-on-YARN-td17265.html > > Thanks, vino. > > Paul Lam <paullin3...@gmail.com> 于2018年8月30日周四 上午9:58写道： > >> Hi vino, >> >> Thanks for your suggestion. I believe it’s working. But I still get this >> exception in jobmanager.err: >> >> > java.lang.UnsupportedClassVersionError: >> org/apache/flink/yarn/entrypoint/YarnSessionClusterEntrypoint : Unsupported >> major.minor version 52.0 >> >> I tried setting Java home for the jobmanager too, but it doesn’t help. >> >> Do you have any idea on this? Thanks a lot! >> >> Best, >> Paul Lam >> >> >> 在 2018年8月29日，16:08，vino yang <yanghua1...@gmail.com> 写道： >> >> Hi Paul, >> >> You can try: -yD yarn.taskmanager.env.JAVA_HOME=xx in the command line. >> >> Thanks, vino. >> >> Paul Lam <paullin3...@gmail.com> 于2018年8月29日周三 下午3:27写道： >> >>> Hi, >>> >>> I’m trying to run Flink on a YARN cluster that’s running on JDK 7, and I >>> think it’s a quite common scenario, but it seems that currently there’s no >>> way to pass the JAVA_HOME environment variable to YARN. >>> >>> Am I missing something? And should I create an issue requesting for that? >>> >>> Best, >>> Paul Lam >> >> >> >
