Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/5964#discussion_r30862115
--- Diff:
core/src/main/scala/org/apache/spark/shuffle/IndexShuffleBlockResolver.scala ---
@@ -74,12 +74,16 @@ private[spark] class IndexShuffleBlockResolver(conf:
SparkConf) extends ShuffleB
* end of the output file. This will be used by getBlockLocation to
figure out where each block
* begins and ends.
* */
- def writeIndexFile(shuffleId: Int, mapId: Int, lengths: Array[Long]):
Unit = {
+ def writeIndexFile(
+ shuffleId: Int,
+ mapId: Int,
+ lengths: Array[Long],
+ initialFileLength: Long): Unit = {
val indexFile = getIndexFile(shuffleId, mapId)
val out = new DataOutputStream(new BufferedOutputStream(new
FileOutputStream(indexFile)))
Utils.tryWithSafeFinally {
// We take in lengths of each block, need to convert it to offsets.
- var offset = 0L
+ var offset = initialFileLength
--- End diff --
to fix issue (2) -- data files are appended, but before this, index files
always pointed to the beginning of the data file.
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