Github user aarondav commented on a diff in the pull request:
https://github.com/apache/spark/pull/2609#discussion_r18373242
--- Diff: core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala
---
@@ -191,6 +194,8 @@ private[spark] class Worker(
changeMaster(masterUrl, masterWebUiUrl)
context.system.scheduler.schedule(0 millis, HEARTBEAT_MILLIS millis,
self, SendHeartbeat)
if (CLEANUP_ENABLED) {
+ logInfo("Worker cleanup is enabled, so old application directories
will be deleted"
--- End diff --
nit: I noticed that if you make the log message less grammatically correct
and used string interpolation, you can fit it in exactly 100 characters.
```scala
logInfo(s"Worker cleanup enabled; old application directories will be
deleted in: $workDir")
```
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