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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.scheduler.SchedulingMode
import org.apache.spark.ui.{SparkUI, SparkUITab}
/** Web UI showing progress status of all stages in the given SparkContext. */
private[ui] class StagesTab(parent: SparkUI) extends SparkUITab(parent, "stages") {
val sc = parent.sc
val conf = parent.conf
val killEnabled = parent.killEnabled
val progressListener = parent.jobProgressListener
val operationGraphListener = parent.operationGraphListener
attachPage(new AllStagesPage(this))
attachPage(new StagePage(this))
attachPage(new PoolPage(this))
def isFairScheduler: Boolean = progressListener.schedulingMode == Some(SchedulingMode.FAIR)
def handleKillRequest(request: HttpServletRequest): Unit = {
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 && progressListener.activeStages.contains(stageId)) {
sc.get.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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