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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 scala.xml.Node
import org.apache.spark.scheduler.{Schedulable, StageInfo}
import org.apache.spark.ui.{WebUIPage, UIUtils}
/** Page showing specific pool details */
private[ui] class PoolPage(parent: StagesTab) extends WebUIPage("pool") {
private val sc = parent.sc
private val listener = parent.progressListener
def render(request: HttpServletRequest): Seq[Node] = {
listener.synchronized {
val poolName = request.getParameter("poolname")
require(poolName != null && poolName.nonEmpty, "Missing poolname parameter")
val poolToActiveStages = listener.poolToActiveStages
val activeStages = poolToActiveStages.get(poolName) match {
case Some(s) => s.values.toSeq
case None => Seq[StageInfo]()
}
val activeStagesTable = new StageTableBase(activeStages.sortBy(_.submissionTime).reverse,
parent.basePath, parent.progressListener, isFairScheduler = parent.isFairScheduler,
killEnabled = parent.killEnabled)
// For now, pool information is only accessible in live UIs
val pools = sc.map(_.getPoolForName(poolName).get).toSeq
val poolTable = new PoolTable(pools, parent)
val content =
<h4>Summary </h4> ++ poolTable.toNodeSeq ++
<h4>{activeStages.size} Active Stages</h4> ++ activeStagesTable.toNodeSeq
UIUtils.headerSparkPage("Fair Scheduler Pool: " + poolName, content, parent)
}
}
}
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