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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 java.util.Date
import javax.servlet.http.HttpServletRequest
import scala.xml.Node
import org.apache.spark.ui.UIUtils._
import org.apache.spark.ui.Page._
import org.apache.spark.util.{Utils, Distribution}
import org.apache.spark.{ExceptionFailure}
import org.apache.spark.scheduler.cluster.TaskInfo
import org.apache.spark.executor.TaskMetrics
/** Page showing statistics and task list for a given stage */
private[spark] class StagePage(parent: JobProgressUI) {
def listener = parent.listener
val dateFmt = parent.dateFmt
def render(request: HttpServletRequest): Seq[Node] = {
listener.synchronized {
val stageId = request.getParameter("id").toInt
val now = System.currentTimeMillis()
if (!listener.stageToTaskInfos.contains(stageId)) {
val content =
<div>
<h4>Summary Metrics</h4> No tasks have started yet
<h4>Tasks</h4> No tasks have started yet
</div>
return headerSparkPage(content, parent.sc, "Details for Stage %s".format(stageId), Stages)
}
val tasks = listener.stageToTaskInfos(stageId).toSeq.sortBy(_._1.launchTime)
val numCompleted = tasks.count(_._1.finished)
val shuffleReadBytes = listener.stageToShuffleRead.getOrElse(stageId, 0L)
val hasShuffleRead = shuffleReadBytes > 0
val shuffleWriteBytes = listener.stageToShuffleWrite.getOrElse(stageId, 0L)
val hasShuffleWrite = shuffleWriteBytes > 0
var activeTime = 0L
listener.stageToTasksActive(stageId).foreach(activeTime += _.timeRunning(now))
val summary =
<div>
<ul class="unstyled">
<li>
<strong>CPU time: </strong>
{parent.formatDuration(listener.stageToTime.getOrElse(stageId, 0L) + activeTime)}
</li>
{if (hasShuffleRead)
<li>
<strong>Shuffle read: </strong>
{Utils.bytesToString(shuffleReadBytes)}
</li>
}
{if (hasShuffleWrite)
<li>
<strong>Shuffle write: </strong>
{Utils.bytesToString(shuffleWriteBytes)}
</li>
}
</ul>
</div>
val taskHeaders: Seq[String] =
Seq("Task ID", "Status", "Locality Level", "Executor", "Launch Time", "Duration") ++
Seq("GC Time") ++
{if (hasShuffleRead) Seq("Shuffle Read") else Nil} ++
{if (hasShuffleWrite) Seq("Shuffle Write") else Nil} ++
Seq("Errors")
val taskTable = listingTable(taskHeaders, taskRow(hasShuffleRead, hasShuffleWrite), tasks)
// Excludes tasks which failed and have incomplete metrics
val validTasks = tasks.filter(t => t._1.status == "SUCCESS" && (t._2.isDefined))
val summaryTable: Option[Seq[Node]] =
if (validTasks.size == 0) {
None
}
else {
val serviceTimes = validTasks.map{case (info, metrics, exception) =>
metrics.get.executorRunTime.toDouble}
val serviceQuantiles = "Duration" +: Distribution(serviceTimes).get.getQuantiles().map(
ms => parent.formatDuration(ms.toLong))
def getQuantileCols(data: Seq[Double]) =
Distribution(data).get.getQuantiles().map(d => Utils.bytesToString(d.toLong))
val shuffleReadSizes = validTasks.map {
case(info, metrics, exception) =>
metrics.get.shuffleReadMetrics.map(_.remoteBytesRead).getOrElse(0L).toDouble
}
val shuffleReadQuantiles = "Shuffle Read (Remote)" +: getQuantileCols(shuffleReadSizes)
val shuffleWriteSizes = validTasks.map {
case(info, metrics, exception) =>
metrics.get.shuffleWriteMetrics.map(_.shuffleBytesWritten).getOrElse(0L).toDouble
}
val shuffleWriteQuantiles = "Shuffle Write" +: getQuantileCols(shuffleWriteSizes)
val listings: Seq[Seq[String]] = Seq(serviceQuantiles,
if (hasShuffleRead) shuffleReadQuantiles else Nil,
if (hasShuffleWrite) shuffleWriteQuantiles else Nil)
val quantileHeaders = Seq("Metric", "Min", "25th percentile",
"Median", "75th percentile", "Max")
def quantileRow(data: Seq[String]): Seq[Node] = <tr> {data.map(d => <td>{d}</td>)} </tr>
Some(listingTable(quantileHeaders, quantileRow, listings, fixedWidth = true))
}
val content =
summary ++
<h4>Summary Metrics for {numCompleted} Completed Tasks</h4> ++
<div>{summaryTable.getOrElse("No tasks have reported metrics yet.")}</div> ++
<h4>Tasks</h4> ++ taskTable;
headerSparkPage(content, parent.sc, "Details for Stage %d".format(stageId), Stages)
}
}
def taskRow(shuffleRead: Boolean, shuffleWrite: Boolean)
(taskData: (TaskInfo, Option[TaskMetrics], Option[ExceptionFailure])): Seq[Node] = {
def fmtStackTrace(trace: Seq[StackTraceElement]): Seq[Node] =
trace.map(e => <span style="display:block;">{e.toString}</span>)
val (info, metrics, exception) = taskData
val duration = if (info.status == "RUNNING") info.timeRunning(System.currentTimeMillis())
else metrics.map(m => m.executorRunTime).getOrElse(1)
val formatDuration = if (info.status == "RUNNING") parent.formatDuration(duration)
else metrics.map(m => parent.formatDuration(m.executorRunTime)).getOrElse("")
val gcTime = metrics.map(m => m.jvmGCTime).getOrElse(0L)
<tr>
<td>{info.taskId}</td>
<td>{info.status}</td>
<td>{info.taskLocality}</td>
<td>{info.host}</td>
<td>{dateFmt.format(new Date(info.launchTime))}</td>
<td sorttable_customkey={duration.toString}>
{formatDuration}
</td>
<td sorttable_customkey={gcTime.toString}>
{if (gcTime > 0) parent.formatDuration(gcTime) else ""}
</td>
{if (shuffleRead) {
<td>{metrics.flatMap{m => m.shuffleReadMetrics}.map{s =>
Utils.bytesToString(s.remoteBytesRead)}.getOrElse("")}</td>
}}
{if (shuffleWrite) {
<td>{metrics.flatMap{m => m.shuffleWriteMetrics}.map{s =>
Utils.bytesToString(s.shuffleBytesWritten)}.getOrElse("")}</td>
}}
<td>{exception.map(e =>
<span>
{e.className} ({e.description})<br/>
{fmtStackTrace(e.stackTrace)}
</span>).getOrElse("")}
</td>
</tr>
}
}
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