Thanks for sharing! Yea Spark 4.0 is built using Java 17. On Tue, Jun 18, 2024 at 5:07 AM George Magiros <gmagi...@gmail.com> wrote:
> I successfully submitted and ran org.apache.spark.examples.SparkPi on Yarn > using 4.0.0-preview1. However I got it to work only after fixing an issue > with the Yarn nodemanagers (Hadoop v3.3.6 and v3.4.0). Namely the issue > was: > 1. If the nodemanagers used java 11, Yarn threw an error about not finding > the jdk.incubator.vector module. > 2. If the nodemanagers used java 17, which has the jdk.incubator.vector > module, Yarn threw a reflection error about class not found. > > To resolve the error and successfully calculate pi, > 1. I ran java 17 on the nodemanagers and > 2. added 'export > HADOOP_OPTS="--add-opens=java.base/java.lang=ALL-UNNAMED"' to their > conf/hadoop-env.sh file. > > George > >
