jlpedrosa commented on a change in pull request #24702: [Minor] [Kubernetes] [Core] Added retries on the connection to the driver for k8s URL: https://github.com/apache/spark/pull/24702#discussion_r291663344
########## File path: resource-managers/kubernetes/docker/src/main/dockerfiles/spark/Dockerfile ########## @@ -51,6 +51,8 @@ ENV SPARK_HOME /opt/spark WORKDIR /opt/spark/work-dir RUN chmod g+w /opt/spark/work-dir +#Disable negative dns reslolution https://docs.oracle.com/javase/8/docs/technotes/guides/net/properties.html +RUN sed -i -e 's/networkaddress.cache.negative.ttl=10/networkaddress.cache.negative.ttl=0/g' /usr/lib/jvm/java-1.8-openjdk/jre/lib/security/java.security Review comment: As I read in the docs, no those values can't be overriden via properties. It can be just replaced the whole file. https://stackoverflow.com/questions/4521119/java-argument-to-specify-java-security-file-for-jvm You can use this code to test. ``` import java.security.Security; public class HelloWorld { public static void main(String[] args) { String prop = Security.getProperty("networkaddress.cache.negative.ttl"); System.out.println("java.security.networkaddress.cache.negative.ttl: " + prop); } } ``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
