This looks like a bug in the master branch of Spark, related to some recent
changes to EventLoggingListener. You can reproduce this bug on a fresh
Spark checkout by running
./bin/spark-shell --conf spark.eventLog.enabled=true --conf
spark.eventLog.dir=/tmp/nonexistent-dir
where
I posted about the Application WebUI error (specifically application WebUI not
the master WebUI generally) and have spent at least a few hours a day for over
week trying to resolve it so I’d be very grateful for any suggestions. It is
quite troubling that I appear to be the only one
