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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.ui.jobs
import javax.servlet.http.HttpServletRequest
import org.apache.spark.SparkConf
import org.apache.spark.scheduler.SchedulingMode
import org.apache.spark.ui.{SparkUI, WebUITab}
/** Web UI showing progress status of all jobs in the given SparkContext. */
private[ui] class JobProgressTab(parent: SparkUI) extends WebUITab(parent, "stages") {
val appName = parent.appName
val basePath = parent.basePath
val live = parent.live
val sc = parent.sc
val conf = if (live) sc.conf else new SparkConf
val killEnabled = conf.getBoolean("spark.ui.killEnabled", true)
val listener = new JobProgressListener(conf)
attachPage(new JobProgressPage(this))
attachPage(new StagePage(this))
attachPage(new PoolPage(this))
parent.registerListener(listener)
def isFairScheduler = listener.schedulingMode.exists(_ == SchedulingMode.FAIR)
def handleKillRequest(request: HttpServletRequest) = {
if ((killEnabled) && (parent.securityManager.checkModifyPermissions(request.getRemoteUser))) {
val killFlag = Option(request.getParameter("terminate")).getOrElse("false").toBoolean
val stageId = Option(request.getParameter("id")).getOrElse("-1").toInt
if (stageId >= 0 && killFlag && listener.activeStages.contains(stageId)) {
sc.cancelStage(stageId)
}
// Do a quick pause here to give Spark time to kill the stage so it shows up as
// killed after the refresh. Note that this will block the serving thread so the
// time should be limited in duration.
Thread.sleep(100)
}
}
}
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