Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/19408#discussion_r142038567 --- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala --- @@ -981,7 +981,13 @@ private[spark] object Utils extends Logging { return cached } - val indx: Int = hostPort.lastIndexOf(':') + val indx: Int = + // Interpret hostPort as literal IPv6 address if it contains two ore more colons + // scalastyle:off SingleSpaceBetweenRParenAndLCurlyBrace + if (hostPort.matches("(([0-9a-f]*):([0-9a-f]*)){2,}")) -1 --- End diff -- Hex digits can be uppercase right? Should the pattern it not be more like `[0-9a-f]*(:[0-9a-f]*)+` match a number, then colon-number colon-number pairs, not number-colon-number number-colon-number sequences? It might end up being equivalent because the match is for 0 or more digits. This allows some strings that it shouldn't like "::::", but, the purpose isn't to catch every possible case I guess. It would fail name resolution. I thought Inet6Address would just provide parsing for this but I guess not.
--- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org