Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/2609#discussion_r18303912
--- Diff: core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala
---
@@ -202,9 +205,16 @@ private[spark] class Worker(
// Spin up a separate thread (in a future) to do the dir cleanup;
don't tie up worker actor
val cleanupFuture = concurrent.future {
logInfo("Cleaning up oldest application directories in " + workDir
+ " ...")
- Utils.findOldFiles(workDir, APP_DATA_RETENTION_SECS)
- .foreach(Utils.deleteRecursively)
+ val appDirs = workDir.listFiles()
+ if (appDirs == null) {
+ throw new IOException("ERROR: Failed to list files in " +
appDirs)
+ }
+ appDirs.filter {
--- End diff --
The typical style here is to put the parameter on the this line, i.e.
```scala
appDirs.filter { dir =>
dir.isDirectory && !Utils.doesDirectoryContainAnyNewFiles(dir,
APP_DATA_RETENTION_SECS)
}.foreach(Utils.deleteRecursively)
```
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