Yikun commented on a change in pull request #35176:
URL: https://github.com/apache/spark/pull/35176#discussion_r783004394
##########
File path:
resource-managers/kubernetes/docker/src/main/dockerfiles/spark/entrypoint.sh
##########
@@ -36,6 +36,10 @@ if [ -z "$uidentry" ] ; then
fi
fi
+if [ -z "$JAVA_HOME" ]; then
+ JAVA_HOME=$(java -XshowSettings:properties -version 2>&1 > /dev/null | grep
'java.home' | awk '{print $3}')
Review comment:
Maybe we could create a softlink in dockerfile and then import JAVA_HOME
to this softlink, then we don't need change entrypoint.
```
RUN ln -sf /usr/lib/jvm/java-17-openjdk-$(dpkg --print-architecture)/
/usr/local/openjdk-17
ENV JAVA_HOME /usr/local/openjdk-17
```
Anyway, if we can confirm `JAVA_HOME` is loaded as expected, we will don't
need this workaround. I wrong to thought that jdk17 is also point to
$JAVA_HOME/jre, but from your log, it
works(`JAVA_HOME=/usr/lib/jvm/java-17-openjdk-arm64`)
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