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[SPARK-14633] Use more readable format to show memory bytes in Error Message #12392

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[SPARK-14633] Use more readable format to show memory bytes in Error Message #12392

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2 changes: 1 addition & 1 deletion core/src/main/scala/org/apache/spark/memory/UnifiedMemoryManager.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -206,7 +206,7 @@ object UnifiedMemoryManager {
val systemMemory = conf.getLong("spark.testing.memory", Runtime.getRuntime.maxMemory)
val reservedMemory = conf.getLong("spark.testing.reservedMemory",
if (conf.contains("spark.testing")) 0 else RESERVED_SYSTEM_MEMORY_BYTES)
val minSystemMemory = reservedMemory * 1.5
val minSystemMemory = (reservedMemory * 1.5).ceil.toLong
if (systemMemory < minSystemMemory) {
throw new IllegalArgumentException(s"System memory $systemMemory must " +
s"be at least $minSystemMemory. Please increase heap size using the --driver-memory " +
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