Github user frreiss commented on a diff in the pull request:
https://github.com/apache/spark/pull/15027#discussion_r78469982
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/HDFSMetadataLog.scala
---
@@ -146,6 +146,11 @@ class HDFSMetadataLog[T: ClassTag](sparkSession:
SparkSession, path: String)
// It will fail if there is an existing file (someone has
committed the batch)
logDebug(s"Attempting to write log #${batchIdToPath(batchId)}")
fileManager.rename(tempPath, batchIdToPath(batchId))
+
+ // SPARK-17475: HDFSMetadataLog should not leak CRC files
+ // If the underlying filesystem didn't rename the CRC file,
delete it.
--- End diff --
I believe HDFSMetadataLog is only called from Structured Streaming classes
currently.
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