Github user yucai commented on a diff in the pull request:
https://github.com/apache/spark/pull/10225#discussion_r47181555
--- Diff:
core/src/main/scala/org/apache/spark/storage/DiskBlockManager.scala ---
@@ -80,6 +77,65 @@ private[spark] class DiskBlockManager(blockManager:
BlockManager, conf: SparkCon
new File(subDir, filename)
}
+ def getFileDefault(filename: String): File = {
+ _getFile(filename, localDirs)
+ }
+ var getFile = getFileDefault _
+
+ private val hierarchyStore =
conf.getOption("spark.storage.hierarchyStore")
+ if (hierarchyStore.isDefined) {
+ val HSLayers: Array[(String, Long)] =
+ hierarchyStore.get.trim.split(",").map {
+ s => val x = s.trim.split(" +")
+ (x(0), Utils.byteStringAsGb(x(1)))
--- End diff --
This number is the *threshold* before dropping into the next layer.
We do get free space by using getFreeSpace method, like in getFileHierarchy.
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