Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/17124#discussion_r103864707
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/HDFSBackedStateStoreProvider.scala
---
@@ -282,8 +282,12 @@ private[state] class HDFSBackedStateStoreProvider(
// target file will break speculation, skipping the rename step is
the only choice. It's still
// semantically correct because Structured Streaming requires
rerunning a batch should
// generate the same output. (SPARK-19677)
+ // Also, a tmp file of delta file that generated by the first batch
after restart
--- End diff --
This comment is not 100% correct, this may also happen in a speculation
task.
This PR is just a follow up to delete the temp file that #17012 forgot to
do it. IMO, not need to add a comment for it.
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