Error on Spark history UI api when used with Apache Knox

Hello, I am securing my Spark history UI with Apache knox and am having trouble with the proxied SparkhistoryUI as mentionned in this thread: https://lists.apache.org/thread/xwzo4g6qk2hqmn62t6p162b8t6l3hldq I managed to edit the rewrite rules to make the css load on the proxied sparkhistory UI

problem using spark 3.4 with spots

Hello, Hello, I am working with spark on dataiku using spots on S3 ( not in demand instances). I had no problem until I moved from park 3.3 to spark 3.4 ! I always have this fail and could not understand what configuration in the new version of spark lead to it *org.apache.spark.SparkException: J