Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/3009#discussion_r20175656
--- Diff: core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala ---
@@ -0,0 +1,144 @@
+/*
+ * 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 scala.xml.{Node, NodeSeq}
+
+import javax.servlet.http.HttpServletRequest
+
+import org.apache.spark.ui.{WebUIPage, UIUtils}
+import org.apache.spark.ui.jobs.UIData.JobUIData
+
+
+/** Page showing list of all ongoing and recently finished jobs */
+private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
+ private val sc = parent.sc
+ private val listener = parent.listener
+
+ private def getSubmissionTime(job: JobUIData): Option[Long] = {
+ for (
+ firstStageId <- job.stageIds.headOption;
+ firstStageInfo <- listener.stageIdToInfo.get(firstStageId);
+ submitTime <- firstStageInfo.submissionTime
+ ) yield submitTime
+ }
+
+ private def jobsTable(jobs: Seq[JobUIData]): Seq[Node] = {
+ val columns: Seq[Node] = {
+ <th>Job Id (Job Group)</th>
--- End diff --
OH I see -- I didn't realize that when there's a job group, it will be
shown in parentheses ("1 (4)", for example). I thought the "(job group)" was
indicating that the job Id was the same as the job group Id. This all makes
sense now -- thanks!
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