[GitHub] spark pull request: [SPARK-13776][WebUI]Limit the max number of ac...

[jaceklaskowski <gi...@git.apache.org>]

Github user jaceklaskowski commented on a diff in the pull request:

    https://github.com/apache/spark/pull/11615#discussion_r55868740
  
    --- Diff: core/src/main/scala/org/apache/spark/ui/JettyUtils.scala ---
    @@ -270,9 +270,25 @@ private[spark] object JettyUtils extends Logging {
     
           gzipHandlers.foreach(collection.addHandler)
           connectors.foreach(_.setHost(hostName))
    +      // As each acceptor and each selector will use one thread, the number of threads should at
    +      // least be the number of acceptors and selectors plus 1. (See SPARK-13776)
    +      var minThreads = 1
    +      connectors.foreach { c =>
    --- End diff --
    
    Use `collect` or "cast" using pattern matching on type. 


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