Github user lw-lin commented on a diff in the pull request:
https://github.com/apache/spark/pull/17070#discussion_r103102481
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/HDFSMetadataLog.scala
---
@@ -195,6 +196,11 @@ class HDFSMetadataLog[T <: AnyRef :
ClassTag](sparkSession: SparkSession, path:
val input = fileManager.open(batchMetadataFile)
try {
Some(deserialize(input))
+ } catch {
+ case ise: IllegalStateException =>
--- End diff --
the low-level exception does not know about the log file's path, and I'm
trying to put it into the error message to give users very explicit information
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