Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/1820#discussion_r15912635
--- Diff: core/src/main/scala/org/apache/spark/TestUtils.scala ---
@@ -111,4 +111,13 @@ private[spark] object TestUtils {
assert(out.exists(), "Destination file not moved: " +
out.getAbsolutePath())
out
}
+
+ /** Find a free port to bind to. */
--- End diff --
Could you add a comment that describes the potential race condition that
could happen? (i.e. right after you close the socket some other process can
grab the port)
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