Thomas Graves created SPARK-33715: ------------------------------------- Summary: Error about cores being limiting resource confusing Key: SPARK-33715 URL: https://issues.apache.org/jira/browse/SPARK-33715 Project: Spark Issue Type: Bug Components: Spark Core Affects Versions: 3.0.1 Reporter: Thomas Graves
If you misconfigure your resources and cores is not the limiting resource we print the following error: 20/12/08 20:23:37 ERROR Main: Failed to initialize Spark session. java.lang.IllegalArgumentException: The number of slots on an executor has to be limited by the number of cores, otherwise you waste resources and dynamic allocation doesn't work properly. Your configuration has core/task cpu slots = 8 and gpu = 1. Please adjust your configuration so that all resources require same number of executor slots. I recieved reports that this was confusing to users. Specifically the sentence "Your configuration has core/task cpu slots = 8 and gpu = 1" so I think we can improve that message. Note this only affects 3.0.0 and 3.0.1, 3.1.0 changed this functionality. To reproduce just run spark 3.0.1 with something like: $SPARK_HOME/bin/spark-shell --master yarn --executor-cores 8 --conf spark.executor.resource.gpu.amount=1 --conf spark.task.resource.gpu.amount=1 -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org