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[SPARK-20691][CORE] Difference between Storage Memory as seen internally and in web UI #18229

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[SPARK-20691][CORE] Difference between Storage Memory as seen internally and in web UI #18229

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mkesselaers Jun 7, 2017
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mkesselaers Jun 7, 2017
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Revert "Changed the calculation of bytesToString towards MebiBytes in…
mkesselaers Jun 7, 2017
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Changed the variable names to reflect the difference between MegaBytes en MebiBytes
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@mkesselaers
mkesselaers committed Jun 7, 2017
commit 71c2bbe5a42b99e12fce0653a2d23e48eb1358c4
40 changes: 20 additions & 20 deletions core/src/main/scala/org/apache/spark/util/Utils.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1132,30 +1132,30 @@ private[spark] object Utils extends Logging {
def bytesToString(size: Long): String = bytesToString(BigInt(size))

def bytesToString(size: BigInt): String = {
val EB = 1L << 60
val PB = 1L << 50
val TB = 1L << 40
val GB = 1L << 30
val MB = 1L << 20
val KB = 1L << 10

if (size >= BigInt(1L << 11) * EB) {
val EiB = 1L << 60
val PiB = 1L << 50
val TiB = 1L << 40
val GiB = 1L << 30
val MiB = 1L << 20
val KiB = 1L << 10

if (size >= BigInt(1L << 11) * EiB) {
// The number is too large, show it in scientific notation.
BigDecimal(size, new MathContext(3, RoundingMode.HALF_UP)).toString() + " B"
} else {
val (value, unit) = {
if (size >= 2 * EB) {
(BigDecimal(size) / EB, "EiB")
} else if (size >= 2 * PB) {
(BigDecimal(size) / PB, "PiB")
} else if (size >= 2 * TB) {
(BigDecimal(size) / TB, "TiB")
} else if (size >= 2 * GB) {
(BigDecimal(size) / GB, "GiB")
} else if (size >= 2 * MB) {
(BigDecimal(size) / MB, "MiB")
} else if (size >= 2 * KB) {
(BigDecimal(size) / KB, "KiB")
if (size >= 2 * EiB) {
(BigDecimal(size) / EiB, "EiB")
} else if (size >= 2 * PiB) {
(BigDecimal(size) / PiB, "PiB")
} else if (size >= 2 * TiB) {
(BigDecimal(size) / TiB, "TiB")
} else if (size >= 2 * GiB) {
(BigDecimal(size) / GiB, "GiB")
} else if (size >= 2 * MiB) {
(BigDecimal(size) / MiB, "MiB")
} else if (size >= 2 * KiB) {
(BigDecimal(size) / KiB, "KiB")
} else {
(BigDecimal(size), "B")
}
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