dongjoon-hyun commented on issue #26430: [SPARK-28859][Core] Requires MEMORY_OFFHEAP_SIZE value must be > 0 when user specifies URL: https://github.com/apache/spark/pull/26430#issuecomment-554217775 Sorry, @xingyif . It seems that this PR causes `1,588 failures` in Apache Spark unit tests due to the contradiction. `checkValue` is called at `TypedConfigBuilder.createWithDefault`. ``` sbt.ForkMain$ForkError: sbt.ForkMain$ForkError: java.lang.ExceptionInInitializerError: null at org.apache.spark.SparkConf$.<init>(SparkConf.scala:639) at org.apache.spark.SparkConf$.<clinit>(SparkConf.scala) at org.apache.spark.SparkConf.set(SparkConf.scala:94) at org.apache.spark.SparkConf.$anonfun$loadFromSystemProperties$3(SparkConf.scala:76) ... Caused by: sbt.ForkMain$ForkError: sbt.ForkMain$ForkError: java.lang.IllegalArgumentException: The off-heap memory size must be positive. at org.apache.spark.internal.config.TypedConfigBuilder.$anonfun$checkValue$1(ConfigBuilder.scala:107) at org.apache.spark.internal.config.TypedConfigBuilder.$anonfun$transform$1(ConfigBuilder.scala:101) at org.apache.spark.internal.config.TypedConfigBuilder.createWithDefault(ConfigBuilder.scala:144) at org.apache.spark.internal.config.package$.<init>(package.scala:273) at org.apache.spark.internal.config.package$.<clinit>(package.scala) ... 25 more ``` Since `MemoryManager.scala` already validates the condition and throws exception correctly. I'll close this PR.
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