AngersZhuuuu commented on a change in pull request #27988:
[SPARK-31226][CORE][TEST] SizeBasedCoalesce logic will lose partition
URL: https://github.com/apache/spark/pull/27988#discussion_r402014223
##########
File path: core/src/test/scala/org/apache/spark/rdd/RDDSuite.scala
##########
@@ -1298,18 +1298,18 @@ class SizeBasedCoalescer(val maxSize: Int) extends
PartitionCoalescer with Seria
val splitSize = fileSplit.getLength
if (currentSum + splitSize < maxSize) {
addPartition(partition, splitSize)
- index += 1
- if (index == partitions.size) {
- updateGroups
- }
} else {
- if (currentGroup.partitions.size == 0) {
+ if (currentGroup.partitions.isEmpty) {
addPartition(partition, splitSize)
- index += 1
} else {
- updateGroups
+ updateGroups()
+ addPartition(partition, splitSize)
}
}
+ index += 1
+ if (index == partitions.length) {
+ updateGroups()
+ }
Review comment:
> BTW, the previous code was added at 2.0.0. Did you hit a test flakiness
due to this?
Yeah, these days I am testing a way to fix spark small out put file
problem, and I use this logic, during test, found that this logic is wrong.
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