org.apache.spark.ui.jobs.StagesTab.scala Maven / Gradle / Ivy
/*
* 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.status.AppStatusStore
import org.apache.spark.status.api.v1.StageStatus
import org.apache.spark.ui.{SparkUI, SparkUITab, UIUtils}
/** Web UI showing progress status of all stages in the given SparkContext. */
private[ui] class StagesTab(val parent: SparkUI, val store: AppStatusStore)
extends SparkUITab(parent, "stages") {
val sc = parent.sc
val conf = parent.conf
val killEnabled = parent.killEnabled
attachPage(new AllStagesPage(this))
attachPage(new StagePage(this, store))
attachPage(new PoolPage(this))
def isFairScheduler: Boolean = {
store
.environmentInfo()
.sparkProperties
.contains(("spark.scheduler.mode", SchedulingMode.FAIR.toString))
}
def handleKillRequest(request: HttpServletRequest): Unit = {
if (killEnabled && parent.securityManager.checkModifyPermissions(request.getRemoteUser)) {
// stripXSS is called first to remove suspicious characters used in XSS attacks
val stageId = Option(UIUtils.stripXSS(request.getParameter("id"))).map(_.toInt)
stageId.foreach { id =>
store.asOption(store.lastStageAttempt(id)).foreach { stage =>
val status = stage.status
if (status == StageStatus.ACTIVE || status == StageStatus.PENDING) {
sc.foreach(_.cancelStage(id, "killed via the Web UI"))
// 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)
}
}
}
}
}
}