Hi,
are you running Flink in an JRE >= 8? We dropped Java 7 support for
Flink 1.4.


Nico

On 14/12/17 12:35, 杨光 wrote:
> Hi,
> I am usring flink single-job mode on YARN. After i upgrade flink
> verson from 1.3.2 to  1.4.0, the parameter
> "yarn.taskmanager.env.JAVA_HOME" doesn’t work  as before.
> I can only found error log on yarn like this:
> 
> Exception in thread "main" java.lang.UnsupportedClassVersionError:
> org/apache/flink/yarn/YarnApplicationMasterRunner : Unsupported
> major.minor version 52.0
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
> at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
> 
> Is there something different i should know  to avoid this problem ?
> Thanks!
> 

Attachment: signature.asc
Description: OpenPGP digital signature

Reply via email to