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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.exec
import java.net.URLDecoder
import javax.servlet.http.HttpServletRequest
import scala.util.Try
import scala.xml.{Text, Node}
import org.apache.spark.ui.{UIUtils, WebUIPage}
private[ui] class ExecutorThreadDumpPage(parent: ExecutorsTab) extends WebUIPage("threadDump") {
private val sc = parent.sc
def render(request: HttpServletRequest): Seq[Node] = {
val executorId = Option(request.getParameter("executorId")).map {
executorId =>
// Due to YARN-2844, "<driver>" in the url will be encoded to "%25253Cdriver%25253E" when
// running in yarn-cluster mode. `request.getParameter("executorId")` will return
// "%253Cdriver%253E". Therefore we need to decode it until we get the real id.
var id = executorId
var decodedId = URLDecoder.decode(id, "UTF-8")
while (id != decodedId) {
id = decodedId
decodedId = URLDecoder.decode(id, "UTF-8")
}
id
}.getOrElse {
return Text(s"Missing executorId parameter")
}
val time = System.currentTimeMillis()
val maybeThreadDump = sc.get.getExecutorThreadDump(executorId)
val content = maybeThreadDump.map { threadDump =>
val dumpRows = threadDump.map { thread =>
<div class="accordion-group">
<div class="accordion-heading" onclick="$(this).next().toggleClass('hidden')">
<a class="accordion-toggle">
Thread {thread.threadId}: {thread.threadName} ({thread.threadState})
</a>
</div>
<div class="accordion-body hidden">
<div class="accordion-inner">
<pre>{thread.stackTrace}</pre>
</div>
</div>
</div>
}
<div class="row-fluid">
<p>Updated at {UIUtils.formatDate(time)}</p>
{
// scalastyle:off
<p><a class="expandbutton"
onClick="$('.accordion-body').removeClass('hidden'); $('.expandbutton').toggleClass('hidden')">
Expand All
</a></p>
<p><a class="expandbutton hidden"
onClick="$('.accordion-body').addClass('hidden'); $('.expandbutton').toggleClass('hidden')">
Collapse All
</a></p>
// scalastyle:on
}
<div class="accordion">{dumpRows}</div>
</div>
}.getOrElse(Text("Error fetching thread dump"))
UIUtils.headerSparkPage(s"Thread dump for executor $executorId", content, parent)
}
}
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