Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/12435#discussion_r60307237
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala ---
@@ -443,6 +444,27 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val FILE_SINK_LOG_DELETION =
SQLConfigBuilder("spark.sql.streaming.fileSink.log.deletion")
+ .internal()
+ .doc("Whether to delete the expired log files in file stream sink.")
+ .booleanConf
+ .createWithDefault(true)
+
+ val FILE_SINK_LOG_COMPACT_INTERVAL =
+ SQLConfigBuilder("spark.sql.streaming.fileSink.log.compactInterval")
+ .internal()
+ .doc("Number of log files after which all the previous files " +
+ "are compacted into the next log file.")
+ .intConf
+ .createWithDefault(10)
+
+ val FILE_SINK_LOG_CLEANUP_DELAY =
+ SQLConfigBuilder("spark.sql.streaming.fileSink.log.cleanupDelay")
+ .internal()
+ .doc("How long in milliseconds a file is guaranteed to be visible
for all readers.")
--- End diff --
In addition, old Hadoop's `open` method doesn't guarantee to throw
FileNotFoundException. E.g.,
https://github.com/apache/hadoop/blob/release-2.4.0/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/s3/S3FileSystem.java#L181
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