Github user mateiz commented on a diff in the pull request:
https://github.com/apache/spark/pull/158#discussion_r11006607
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -127,6 +125,11 @@ class SparkContext(
val master = conf.get("spark.master")
val appName = conf.get("spark.app.name")
+
+ // Generate the random name for a temp folder in Tachyon
+ // Add a timestamp as the suffix here to make it more safe
+ val tachyonFolderName = new Random().nextInt() + "_" +
System.currentTimeMillis()
--- End diff --
Use
http://docs.oracle.com/javase/1.5.0/docs/api/java/util/UUID.html#randomUUID()
instead, and maybe call it "spark-" followed by that.
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