Ngone51 commented on a change in pull request #32401:
URL: https://github.com/apache/spark/pull/32401#discussion_r668400943
##########
File path:
core/src/main/scala/org/apache/spark/shuffle/IndexShuffleBlockResolver.scala
##########
@@ -360,13 +389,41 @@ private[spark] class IndexShuffleBlockResolver(
if (dataTmp != null && dataTmp.exists() &&
!dataTmp.renameTo(dataFile)) {
throw new IOException("fail to rename file " + dataTmp + " to " +
dataFile)
}
+
+ // write the checksum file
+ checksumTmpOpt.zip(checksumFileOpt).foreach { case (checksumTmp,
checksumFile) =>
+ val out = new DataOutputStream(
+ new BufferedOutputStream(
+ new FileOutputStream(checksumTmp)
+ )
+ )
+ Utils.tryWithSafeFinally {
+ checksums.foreach(out.writeLong)
+ } {
+ out.close()
+ }
+
+ if (checksumFile.exists()) {
+ checksumFile.delete()
+ }
+ if (!checksumTmp.renameTo(checksumFile)) {
+ // It's not worthwhile to fail here after index file and data
file are already
+ // successfully stored due to checksum is only used for the
corner error case.
+ logWarning("fail to rename file " + checksumTmp + " to " +
checksumFile)
Review comment:
I see. I got your point. I'd prefer to back to `if (existingLengths !=
null) {`.
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