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https://issues.apache.org/jira/browse/SPARK-20568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16717090#comment-16717090
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ASF GitHub Bot commented on SPARK-20568:
----------------------------------------
gaborgsomogyi commented on a change in pull request #22952: [SPARK-20568][SS]
Provide option to clean up completed files in streaming query
URL: https://github.com/apache/spark/pull/22952#discussion_r240578220
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/streaming/FileStreamSourceSuite.scala
##########
@@ -1494,6 +1512,287 @@ class FileStreamSourceSuite extends
FileStreamSourceTest {
newSource.getBatch(None, FileStreamSourceOffset(1))
}
}
+
+ test("remove completed files when remove option is enabled") {
+ def assertFileIsRemoved(files: Array[String], fileName: String): Unit = {
+ assert(!files.exists(_.startsWith(fileName)))
+ }
+
+ def assertFileIsNotRemoved(files: Array[String], fileName: String): Unit =
{
+ assert(files.exists(_.startsWith(fileName)))
+ }
+
+ withTempDirs { case (src, tmp) =>
+ withSQLConf(
+ SQLConf.FILE_SOURCE_LOG_COMPACT_INTERVAL.key -> "2",
+ // Force deleting the old logs
+ SQLConf.FILE_SOURCE_LOG_CLEANUP_DELAY.key -> "1"
+ ) {
+ val option = Map("latestFirst" -> "false", "maxFilesPerTrigger" -> "1",
+ "cleanSource" -> "delete")
+
+ val fileStream = createFileStream("text", src.getCanonicalPath,
options = option)
+ val filtered = fileStream.filter($"value" contains "keep")
+
+ testStream(filtered)(
+ AddTextFileData("keep1", src, tmp, tmpFilePrefix = "keep1"),
+ CheckAnswer("keep1"),
+ AssertOnQuery("input file removed") { _: StreamExecution =>
+ // it doesn't rename any file yet
+ assertFileIsNotRemoved(src.list(), "keep1")
+ true
+ },
+ AddTextFileData("keep2", src, tmp, tmpFilePrefix = "ke ep2 %"),
+ CheckAnswer("keep1", "keep2"),
+ AssertOnQuery("input file removed") { _: StreamExecution =>
+ val files = src.list()
+
+ // it renames input file for first batch, but not for second batch
yet
+ assertFileIsRemoved(files, "keep1")
+ assertFileIsNotRemoved(files, "ke ep2 %")
+
+ true
+ },
+ AddTextFileData("keep3", src, tmp, tmpFilePrefix = "keep3"),
+ CheckAnswer("keep1", "keep2", "keep3"),
+ AssertOnQuery("input file renamed") { _: StreamExecution =>
+ val files = src.list()
+
+ // it renames input file for second batch, but not third batch yet
+ assertFileIsRemoved(files, "ke ep2 %")
+ assertFileIsNotRemoved(files, "keep3")
+
+ true
+ }
+ )
+ }
+ }
+ }
+
+ test("move completed files to archive directory when archive option is
enabled") {
+
+ withThreeTempDirs { case (src, tmp, archiveDir) =>
+ withSQLConf(
+ SQLConf.FILE_SOURCE_LOG_COMPACT_INTERVAL.key -> "2",
+ // Force deleting the old logs
+ SQLConf.FILE_SOURCE_LOG_CLEANUP_DELAY.key -> "1"
+ ) {
+ val option = Map("latestFirst" -> "false", "maxFilesPerTrigger" -> "1",
+ "cleanSource" -> "archive", "sourceArchiveDir" ->
archiveDir.getAbsolutePath)
+
+ val fileStream = createFileStream("text",
s"${src.getCanonicalPath}/*/*",
+ options = option)
+ val filtered = fileStream.filter($"value" contains "keep")
+
+ // src/k %1
+ // file: src/k1 %1/keep1
+ val dirForKeep1 = new File(src, "k %1")
+ // src/k1/k 2
+ // file: src/k1/k 2/keep2
+ val dirForKeep2 = new File(dirForKeep1, "k 2")
+ // src/k3
+ // file: src/k3/keep3
+ val dirForKeep3 = new File(src, "k3")
+
+ val expectedMovedDir1 = new File(archiveDir.getAbsolutePath +
dirForKeep1.toURI.getPath)
+ val expectedMovedDir2 = new File(archiveDir.getAbsolutePath +
dirForKeep2.toURI.getPath)
+ val expectedMovedDir3 = new File(archiveDir.getAbsolutePath +
dirForKeep3.toURI.getPath)
+
+ testStream(filtered)(
+ AddTextFileData("keep1", dirForKeep1, tmp, tmpFilePrefix = "keep1"),
+ CheckAnswer("keep1"),
+ AssertOnQuery("input file archived") { _: StreamExecution =>
+ // it doesn't rename any file yet
+ assertFileIsNotMoved(dirForKeep1, expectedMovedDir1, "keep1")
+ true
+ },
+ AddTextFileData("keep2", dirForKeep2, tmp, tmpFilePrefix = "keep2
%"),
+ CheckAnswer("keep1", "keep2"),
+ AssertOnQuery("input file archived") { _: StreamExecution =>
+ // it renames input file for first batch, but not for second batch
yet
+ assertFileIsMoved(dirForKeep1, expectedMovedDir1, "keep1")
+ assertFileIsNotMoved(dirForKeep2, expectedMovedDir2, "keep2 %")
+ true
+ },
+ AddTextFileData("keep3", dirForKeep3, tmp, tmpFilePrefix = "keep3"),
+ CheckAnswer("keep1", "keep2", "keep3"),
+ AssertOnQuery("input file archived") { _: StreamExecution =>
+ // it renames input file for second batch, but not third batch yet
+ assertFileIsMoved(dirForKeep2, expectedMovedDir2, "keep2 %")
+ assertFileIsNotMoved(dirForKeep3, expectedMovedDir3, "keep3")
+
+ true
+ },
+ AddTextFileData("keep4", dirForKeep3, tmp, tmpFilePrefix = "keep4"),
+ CheckAnswer("keep1", "keep2", "keep3", "keep4"),
+ AssertOnQuery("input file archived") { _: StreamExecution =>
+ // it renames input file for third batch, but not fourth batch yet
+ assertFileIsMoved(dirForKeep3, expectedMovedDir3, "keep3")
+ assertFileIsNotMoved(dirForKeep3, expectedMovedDir3, "keep4")
+
+ true
+ }
+ )
+ }
+ }
+ }
+
+ class FakeFileSystem extends FileSystem {
+ val requestsExists = new mutable.MutableList[Path]()
+ val requestsMkdirs = new mutable.MutableList[Path]()
+ val requestsRename = new mutable.MutableList[(Path, Path)]()
+
+ override def exists(f: Path): Boolean = {
+ requestsExists += f
+ true
+ }
+
+ override def mkdirs(f: Path, permission: FsPermission): Boolean = {
+ requestsMkdirs += f
+ true
+ }
+
+ override def rename(src: Path, dst: Path): Boolean = {
+ requestsRename += ((src, dst))
+ true
+ }
+
+ def clearRecords(): Unit = {
+ requestsExists.clear()
+ requestsMkdirs.clear()
+ requestsRename.clear()
+ }
+
+ override def getUri: URI = throw new NotImplementedError
+
+ override def open(f: Path, bufferSize: Int): FSDataInputStream = throw new
NotImplementedError
+
+ override def create(
+ f: Path,
+ permission: FsPermission,
+ overwrite: Boolean,
+ bufferSize: Int,
+ replication: Short,
+ blockSize: Long,
+ progress: Progressable): FSDataOutputStream = throw new
NotImplementedError
+
+ override def append(f: Path, bufferSize: Int, progress: Progressable):
FSDataOutputStream =
+ throw new NotImplementedError
+
+ override def delete(f: Path, recursive: Boolean): Boolean = throw new
NotImplementedError
+
+ override def listStatus(f: Path): Array[FileStatus] = throw new
NotImplementedError
+
+ override def setWorkingDirectory(new_dir: Path): Unit = throw new
NotImplementedError
+
+ override def getWorkingDirectory: Path = throw new NotImplementedError
+
+ override def getFileStatus(f: Path): FileStatus = throw new
NotImplementedError
+ }
+
+ test("FileStreamSourceCleaner - archive - destinations match against source
pattern") {
+
+ def assertNoMove(fs: FakeFileSystem, sourcePath: Path,
expectedArchivePath: Path): Unit = {
Review comment:
Just wondering why these params needed.
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> Delete files after processing in structured streaming
> -----------------------------------------------------
>
> Key: SPARK-20568
> URL: https://issues.apache.org/jira/browse/SPARK-20568
> Project: Spark
> Issue Type: New Feature
> Components: Structured Streaming
> Affects Versions: 2.1.0, 2.2.1
> Reporter: Saul Shanabrook
> Priority: Major
>
> It would be great to be able to delete files after processing them with
> structured streaming.
> For example, I am reading in a bunch of JSON files and converting them into
> Parquet. If the JSON files are not deleted after they are processed, it
> quickly fills up my hard drive. I originally [posted this on Stack
> Overflow|http://stackoverflow.com/q/43671757/907060] and was recommended to
> make a feature request for it.
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