Ngone51 commented on a change in pull request #32401:
URL: https://github.com/apache/spark/pull/32401#discussion_r668408329
##########
File path:
core/src/main/scala/org/apache/spark/storage/DiskBlockObjectWriter.scala
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@@ -101,12 +108,30 @@ private[spark] class DiskBlockObjectWriter(
*/
private var numRecordsWritten = 0
+ /**
+ * Set the checksum that the checksumOutputStream should use
+ */
+ def setChecksum(checksum: Checksum): Unit = {
+ if (checksumOutputStream == null) {
+ this.checksumEnabled = true
+ this.checksum = checksum
+ } else {
+ checksumOutputStream.setChecksum(checksum)
Review comment:
Yes, it's intentional. In the case of `ShuffleExternalSorter` spill, one
`DiskBlockObjectWriter` would serve multiple partitions and different
partitions should use different checksums.
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