WangGuangxin commented on a change in pull request #34846:
URL: https://github.com/apache/spark/pull/34846#discussion_r771237521
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File path: core/src/main/scala/org/apache/spark/util/Utils.scala
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@@ -3204,6 +3205,22 @@ private[spark] object Utils extends Logging {
}
files.toSeq
}
+
+ /**
+ * Get the value of -XX:G1HeapRegionSize if we are using G1 GC,
+ * otherwise just return None
+ */
+ val G1HeapRegionSize: Option[Long] = {
+ Try {
+ val diagnostic = ManagementFactoryHelper.getDiagnosticMXBean()
Review comment:
@dongjoon-hyun Thanks for your findings. I've updated and checked
against JDK8, 11, and 17. also cc @attilapiros
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