agrawaldevesh commented on a change in pull request #29015:
URL: https://github.com/apache/spark/pull/29015#discussion_r454479729
##########
File path:
core/src/main/scala/org/apache/spark/deploy/master/ui/MasterWebUI.scala
##########
@@ -49,6 +56,23 @@ class MasterWebUI(
"/app/kill", "/", masterPage.handleAppKillRequest, httpMethods =
Set("POST")))
attachHandler(createRedirectHandler(
"/driver/kill", "/", masterPage.handleDriverKillRequest, httpMethods =
Set("POST")))
+ attachHandler(createServletHandler("/workers/kill", new HttpServlet {
+ override def doPost(req: HttpServletRequest, resp: HttpServletResponse):
Unit = {
+ val hostPorts: Seq[String] = Option(req.getParameterValues("host"))
+ .getOrElse(Array[String]()).map(_.toLowerCase(Locale.ROOT)).toSeq
+ logInfo(s"Received request to decommission workers $hostPorts from
${req.getRemoteAddr}")
+ if (!isDecommissioningRequestAllowed(req)) {
+ resp.sendError(HttpServletResponse.SC_METHOD_NOT_ALLOWED)
+ } else {
+ val removedWorkers =
masterEndpointRef.askSync[Integer](DecommissionHostPorts(hostPorts))
+ if (removedWorkers <= 0) {
Review comment:
Never :-P ... I will handle that as an error separately.
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