holdenk commented on a change in pull request #30110:
URL: https://github.com/apache/spark/pull/30110#discussion_r508814205
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File path:
core/src/main/scala/org/apache/spark/shuffle/IndexShuffleBlockResolver.scala
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@@ -241,14 +241,16 @@ private[spark] class IndexShuffleBlockResolver(
val dataBlockData = new FileSegmentManagedBuffer(
transportConf, dataFile, 0, dataFile.length())
- // Make sure the files exist
- assert(indexFile.exists() && dataFile.exists())
+ // Make sure the index exist.
+ if (!indexFile.exists()) {
+ throw new FileNotFoundException("Index file is deleted already.")
+ }
List((indexBlockId, indexBlockData), (dataBlockId, dataBlockData))
Review comment:
If the data file does not exist should we just return the list with the
index file?
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