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From pwend...@apache.org
Subject [09/10] spark git commit: [SPARK-3454] separate json endpoints for data in the UI
Date Fri, 08 May 2015 15:55:02 GMT
http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/status/api/v1/SecurityFilter.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/status/api/v1/SecurityFilter.scala b/core/src/main/scala/org/apache/spark/status/api/v1/SecurityFilter.scala
new file mode 100644
index 0000000..95fbd96
--- /dev/null
+++ b/core/src/main/scala/org/apache/spark/status/api/v1/SecurityFilter.scala
@@ -0,0 +1,38 @@
+/*
+ * 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.status.api.v1
+
+import javax.ws.rs.WebApplicationException
+import javax.ws.rs.core.Response
+
+import com.sun.jersey.spi.container.{ContainerRequest, ContainerRequestFilter}
+
+private[v1] class SecurityFilter extends ContainerRequestFilter with UIRootFromServletContext {
+  def filter(req: ContainerRequest): ContainerRequest = {
+    val user = Option(req.getUserPrincipal).map { _.getName }.orNull
+    if (uiRoot.securityManager.checkUIViewPermissions(user)) {
+      req
+    } else {
+      throw new WebApplicationException(
+        Response
+          .status(Response.Status.FORBIDDEN)
+          .entity(raw"""user "$user"is not authorized""")
+          .build()
+      )
+    }
+  }
+}

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/status/api/v1/SimpleDateParam.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/status/api/v1/SimpleDateParam.scala b/core/src/main/scala/org/apache/spark/status/api/v1/SimpleDateParam.scala
new file mode 100644
index 0000000..cee2978
--- /dev/null
+++ b/core/src/main/scala/org/apache/spark/status/api/v1/SimpleDateParam.scala
@@ -0,0 +1,55 @@
+/*
+ * 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.status.api.v1
+
+import java.text.SimpleDateFormat
+import java.util.TimeZone
+import javax.ws.rs.WebApplicationException
+import javax.ws.rs.core.Response
+import javax.ws.rs.core.Response.Status
+
+import scala.util.Try
+
+private[v1] class SimpleDateParam(val originalValue: String) {
+  val timestamp: Long = {
+    SimpleDateParam.formats.collectFirst {
+      case fmt if Try(fmt.parse(originalValue)).isSuccess =>
+        fmt.parse(originalValue).getTime()
+    }.getOrElse(
+      throw new WebApplicationException(
+        Response
+          .status(Status.BAD_REQUEST)
+          .entity("Couldn't parse date: " + originalValue)
+          .build()
+      )
+    )
+  }
+}
+
+private[v1] object SimpleDateParam {
+
+  val formats: Seq[SimpleDateFormat] = {
+
+    val gmtDay = new SimpleDateFormat("yyyy-MM-dd")
+    gmtDay.setTimeZone(TimeZone.getTimeZone("GMT"))
+
+    Seq(
+      new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSz"),
+      gmtDay
+    )
+  }
+}

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/status/api/v1/api.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/status/api/v1/api.scala b/core/src/main/scala/org/apache/spark/status/api/v1/api.scala
new file mode 100644
index 0000000..ef3c857
--- /dev/null
+++ b/core/src/main/scala/org/apache/spark/status/api/v1/api.scala
@@ -0,0 +1,228 @@
+/*
+ * 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.status.api.v1
+
+import java.util.Date
+
+import scala.collection.Map
+
+import org.apache.spark.JobExecutionStatus
+
+class ApplicationInfo private[spark](
+    val id: String,
+    val name: String,
+    val attempts: Seq[ApplicationAttemptInfo])
+
+class ApplicationAttemptInfo private[spark](
+    val attemptId: Option[String],
+    val startTime: Date,
+    val endTime: Date,
+    val sparkUser: String,
+    val completed: Boolean = false)
+
+class ExecutorStageSummary private[spark](
+    val taskTime : Long,
+    val failedTasks : Int,
+    val succeededTasks : Int,
+    val inputBytes : Long,
+    val outputBytes : Long,
+    val shuffleRead : Long,
+    val shuffleWrite : Long,
+    val memoryBytesSpilled : Long,
+    val diskBytesSpilled : Long)
+
+class ExecutorSummary private[spark](
+    val id: String,
+    val hostPort: String,
+    val rddBlocks: Int,
+    val memoryUsed: Long,
+    val diskUsed: Long,
+    val activeTasks: Int,
+    val failedTasks: Int,
+    val completedTasks: Int,
+    val totalTasks: Int,
+    val totalDuration: Long,
+    val totalInputBytes: Long,
+    val totalShuffleRead: Long,
+    val totalShuffleWrite: Long,
+    val maxMemory: Long,
+    val executorLogs: Map[String, String])
+
+class JobData private[spark](
+    val jobId: Int,
+    val name: String,
+    val description: Option[String],
+    val submissionTime: Option[Date],
+    val completionTime: Option[Date],
+    val stageIds: Seq[Int],
+    val jobGroup: Option[String],
+    val status: JobExecutionStatus,
+    val numTasks: Int,
+    val numActiveTasks: Int,
+    val numCompletedTasks: Int,
+    val numSkippedTasks: Int,
+    val numFailedTasks: Int,
+    val numActiveStages: Int,
+    val numCompletedStages: Int,
+    val numSkippedStages: Int,
+    val numFailedStages: Int)
+
+// Q: should Tachyon size go in here as well?  currently the UI only shows it on the overall storage
+// page ... does anybody pay attention to it?
+class RDDStorageInfo private[spark](
+    val id: Int,
+    val name: String,
+    val numPartitions: Int,
+    val numCachedPartitions: Int,
+    val storageLevel: String,
+    val memoryUsed: Long,
+    val diskUsed: Long,
+    val dataDistribution: Option[Seq[RDDDataDistribution]],
+    val partitions: Option[Seq[RDDPartitionInfo]])
+
+class RDDDataDistribution private[spark](
+    val address: String,
+    val memoryUsed: Long,
+    val memoryRemaining: Long,
+    val diskUsed: Long)
+
+class RDDPartitionInfo private[spark](
+    val blockName: String,
+    val storageLevel: String,
+    val memoryUsed: Long,
+    val diskUsed: Long,
+    val executors: Seq[String])
+
+class StageData private[spark](
+    val status: StageStatus,
+    val stageId: Int,
+    val attemptId: Int,
+    val numActiveTasks: Int ,
+    val numCompleteTasks: Int,
+    val numFailedTasks: Int,
+
+    val executorRunTime: Long,
+
+    val inputBytes: Long,
+    val inputRecords: Long,
+    val outputBytes: Long,
+    val outputRecords: Long,
+    val shuffleReadBytes: Long,
+    val shuffleReadRecords: Long,
+    val shuffleWriteBytes: Long,
+    val shuffleWriteRecords: Long,
+    val memoryBytesSpilled: Long,
+    val diskBytesSpilled: Long,
+
+    val name: String,
+    val details: String,
+    val schedulingPool: String,
+
+    val accumulatorUpdates: Seq[AccumulableInfo],
+    val tasks: Option[Map[Long, TaskData]],
+    val executorSummary:Option[Map[String,ExecutorStageSummary]])
+
+class TaskData private[spark](
+    val taskId: Long,
+    val index: Int,
+    val attempt: Int,
+    val launchTime: Date,
+    val executorId: String,
+    val host: String,
+    val taskLocality: String,
+    val speculative: Boolean,
+    val accumulatorUpdates: Seq[AccumulableInfo],
+    val errorMessage: Option[String] = None,
+    val taskMetrics: Option[TaskMetrics] = None)
+
+class TaskMetrics private[spark](
+    val executorDeserializeTime: Long,
+    val executorRunTime: Long,
+    val resultSize: Long,
+    val jvmGcTime: Long,
+    val resultSerializationTime: Long,
+    val memoryBytesSpilled: Long,
+    val diskBytesSpilled: Long,
+    val inputMetrics: Option[InputMetrics],
+    val outputMetrics: Option[OutputMetrics],
+    val shuffleReadMetrics: Option[ShuffleReadMetrics],
+    val shuffleWriteMetrics: Option[ShuffleWriteMetrics])
+
+class InputMetrics private[spark](
+    val bytesRead: Long,
+    val recordsRead: Long)
+
+class OutputMetrics private[spark](
+    val bytesWritten: Long,
+    val recordsWritten: Long)
+
+class ShuffleReadMetrics private[spark](
+    val remoteBlocksFetched: Int,
+    val localBlocksFetched: Int,
+    val fetchWaitTime: Long,
+    val remoteBytesRead: Long,
+    val totalBlocksFetched: Int,
+    val recordsRead: Long)
+
+class ShuffleWriteMetrics private[spark](
+    val bytesWritten: Long,
+    val writeTime: Long,
+    val recordsWritten: Long)
+
+class TaskMetricDistributions private[spark](
+    val quantiles: IndexedSeq[Double],
+
+    val executorDeserializeTime: IndexedSeq[Double],
+    val executorRunTime: IndexedSeq[Double],
+    val resultSize: IndexedSeq[Double],
+    val jvmGcTime: IndexedSeq[Double],
+    val resultSerializationTime: IndexedSeq[Double],
+    val memoryBytesSpilled: IndexedSeq[Double],
+    val diskBytesSpilled: IndexedSeq[Double],
+
+    val inputMetrics: Option[InputMetricDistributions],
+    val outputMetrics: Option[OutputMetricDistributions],
+    val shuffleReadMetrics: Option[ShuffleReadMetricDistributions],
+    val shuffleWriteMetrics: Option[ShuffleWriteMetricDistributions])
+
+class InputMetricDistributions private[spark](
+    val bytesRead: IndexedSeq[Double],
+    val recordsRead: IndexedSeq[Double])
+
+class OutputMetricDistributions private[spark](
+    val bytesWritten: IndexedSeq[Double],
+    val recordsWritten: IndexedSeq[Double])
+
+class ShuffleReadMetricDistributions private[spark](
+    val readBytes: IndexedSeq[Double],
+    val readRecords: IndexedSeq[Double],
+    val remoteBlocksFetched: IndexedSeq[Double],
+    val localBlocksFetched: IndexedSeq[Double],
+    val fetchWaitTime: IndexedSeq[Double],
+    val remoteBytesRead: IndexedSeq[Double],
+    val totalBlocksFetched: IndexedSeq[Double])
+
+class ShuffleWriteMetricDistributions private[spark](
+    val writeBytes: IndexedSeq[Double],
+    val writeRecords: IndexedSeq[Double],
+    val writeTime: IndexedSeq[Double])
+
+class AccumulableInfo private[spark](
+    val id: Long,
+    val name: String,
+    val update: Option[String],
+    val value: String)

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/storage/StorageStatusListener.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/storage/StorageStatusListener.scala b/core/src/main/scala/org/apache/spark/storage/StorageStatusListener.scala
index 7d75929..ec71148 100644
--- a/core/src/main/scala/org/apache/spark/storage/StorageStatusListener.scala
+++ b/core/src/main/scala/org/apache/spark/storage/StorageStatusListener.scala
@@ -25,13 +25,17 @@ import org.apache.spark.scheduler._
 /**
  * :: DeveloperApi ::
  * A SparkListener that maintains executor storage status.
+ *
+ * This class is thread-safe (unlike JobProgressListener)
  */
 @DeveloperApi
 class StorageStatusListener extends SparkListener {
   // This maintains only blocks that are cached (i.e. storage level is not StorageLevel.NONE)
   private[storage] val executorIdToStorageStatus = mutable.Map[String, StorageStatus]()
 
-  def storageStatusList: Seq[StorageStatus] = executorIdToStorageStatus.values.toSeq
+  def storageStatusList: Seq[StorageStatus] = synchronized {
+    executorIdToStorageStatus.values.toSeq
+  }
 
   /** Update storage status list to reflect updated block statuses */
   private def updateStorageStatus(execId: String, updatedBlocks: Seq[(BlockId, BlockStatus)]) {

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/SparkUI.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/SparkUI.scala b/core/src/main/scala/org/apache/spark/ui/SparkUI.scala
index a5271f0..bfe4a18 100644
--- a/core/src/main/scala/org/apache/spark/ui/SparkUI.scala
+++ b/core/src/main/scala/org/apache/spark/ui/SparkUI.scala
@@ -17,6 +17,9 @@
 
 package org.apache.spark.ui
 
+import java.util.Date
+
+import org.apache.spark.status.api.v1.{ApplicationAttemptInfo, ApplicationInfo, JsonRootResource, UIRoot}
 import org.apache.spark.{Logging, SecurityManager, SparkConf, SparkContext}
 import org.apache.spark.scheduler._
 import org.apache.spark.storage.StorageStatusListener
@@ -33,7 +36,7 @@ import org.apache.spark.ui.scope.RDDOperationGraphListener
 private[spark] class SparkUI private (
     val sc: Option[SparkContext],
     val conf: SparkConf,
-    val securityManager: SecurityManager,
+    securityManager: SecurityManager,
     val environmentListener: EnvironmentListener,
     val storageStatusListener: StorageStatusListener,
     val executorsListener: ExecutorsListener,
@@ -41,22 +44,27 @@ private[spark] class SparkUI private (
     val storageListener: StorageListener,
     val operationGraphListener: RDDOperationGraphListener,
     var appName: String,
-    val basePath: String)
+    val basePath: String,
+    val startTime: Long)
   extends WebUI(securityManager, SparkUI.getUIPort(conf), conf, basePath, "SparkUI")
-  with Logging {
+  with Logging
+  with UIRoot {
 
   val killEnabled = sc.map(_.conf.getBoolean("spark.ui.killEnabled", true)).getOrElse(false)
 
+
+  val stagesTab = new StagesTab(this)
+
   /** Initialize all components of the server. */
   def initialize() {
     attachTab(new JobsTab(this))
-    val stagesTab = new StagesTab(this)
     attachTab(stagesTab)
     attachTab(new StorageTab(this))
     attachTab(new EnvironmentTab(this))
     attachTab(new ExecutorsTab(this))
     attachHandler(createStaticHandler(SparkUI.STATIC_RESOURCE_DIR, "/static"))
     attachHandler(createRedirectHandler("/", "/jobs", basePath = basePath))
+    attachHandler(JsonRootResource.getJsonServlet(this))
     // This should be POST only, but, the YARN AM proxy won't proxy POSTs
     attachHandler(createRedirectHandler(
       "/stages/stage/kill", "/stages", stagesTab.handleKillRequest,
@@ -83,6 +91,24 @@ private[spark] class SparkUI private (
   private[spark] def appUIHostPort = publicHostName + ":" + boundPort
 
   private[spark] def appUIAddress = s"http://$appUIHostPort"
+
+  def getSparkUI(appId: String): Option[SparkUI] = {
+    if (appId == appName) Some(this) else None
+  }
+
+  def getApplicationInfoList: Iterator[ApplicationInfo] = {
+    Iterator(new ApplicationInfo(
+      id = appName,
+      name = appName,
+      attempts = Seq(new ApplicationAttemptInfo(
+        attemptId = None,
+        startTime = new Date(startTime),
+        endTime = new Date(-1),
+        sparkUser = "",
+        completed = false
+      ))
+    ))
+  }
 }
 
 private[spark] abstract class SparkUITab(parent: SparkUI, prefix: String)
@@ -109,9 +135,10 @@ private[spark] object SparkUI {
       listenerBus: SparkListenerBus,
       jobProgressListener: JobProgressListener,
       securityManager: SecurityManager,
-      appName: String): SparkUI =  {
+      appName: String,
+      startTime: Long): SparkUI =  {
     create(Some(sc), conf, listenerBus, securityManager, appName,
-      jobProgressListener = Some(jobProgressListener))
+      jobProgressListener = Some(jobProgressListener), startTime = startTime)
   }
 
   def createHistoryUI(
@@ -119,8 +146,9 @@ private[spark] object SparkUI {
       listenerBus: SparkListenerBus,
       securityManager: SecurityManager,
       appName: String,
-      basePath: String): SparkUI = {
-    create(None, conf, listenerBus, securityManager, appName, basePath)
+      basePath: String,
+      startTime: Long): SparkUI = {
+    create(None, conf, listenerBus, securityManager, appName, basePath, startTime = startTime)
   }
 
   /**
@@ -137,7 +165,8 @@ private[spark] object SparkUI {
       securityManager: SecurityManager,
       appName: String,
       basePath: String = "",
-      jobProgressListener: Option[JobProgressListener] = None): SparkUI = {
+      jobProgressListener: Option[JobProgressListener] = None,
+      startTime: Long): SparkUI = {
 
     val _jobProgressListener: JobProgressListener = jobProgressListener.getOrElse {
       val listener = new JobProgressListener(conf)
@@ -159,6 +188,6 @@ private[spark] object SparkUI {
 
     new SparkUI(sc, conf, securityManager, environmentListener, storageStatusListener,
       executorsListener, _jobProgressListener, storageListener, operationGraphListener,
-      appName, basePath)
+      appName, basePath, startTime)
   }
 }

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/WebUI.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/WebUI.scala b/core/src/main/scala/org/apache/spark/ui/WebUI.scala
index f9860d1..384f2ad 100644
--- a/core/src/main/scala/org/apache/spark/ui/WebUI.scala
+++ b/core/src/main/scala/org/apache/spark/ui/WebUI.scala
@@ -37,7 +37,7 @@ import org.apache.spark.{Logging, SecurityManager, SparkConf}
  * pages. The use of tabs is optional, however; a WebUI may choose to include pages directly.
  */
 private[spark] abstract class WebUI(
-    securityManager: SecurityManager,
+    val securityManager: SecurityManager,
     port: Int,
     conf: SparkConf,
     basePath: String = "",
@@ -77,15 +77,9 @@ private[spark] abstract class WebUI(
     val pagePath = "/" + page.prefix
     val renderHandler = createServletHandler(pagePath,
       (request: HttpServletRequest) => page.render(request), securityManager, basePath)
-    val renderJsonHandler = createServletHandler(pagePath.stripSuffix("/") + "/json",
-      (request: HttpServletRequest) => page.renderJson(request), securityManager, basePath)
     attachHandler(renderHandler)
-    attachHandler(renderJsonHandler)
     pageToHandlers.getOrElseUpdate(page, ArrayBuffer[ServletContextHandler]())
       .append(renderHandler)
-    pageToHandlers.getOrElseUpdate(page, ArrayBuffer[ServletContextHandler]())
-      .append(renderJsonHandler)
-    
   }
 
   /** Attach a handler to this UI. */

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/exec/ExecutorsPage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/exec/ExecutorsPage.scala b/core/src/main/scala/org/apache/spark/ui/exec/ExecutorsPage.scala
index 956608d..b247e4c 100644
--- a/core/src/main/scala/org/apache/spark/ui/exec/ExecutorsPage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/exec/ExecutorsPage.scala
@@ -22,11 +22,11 @@ import javax.servlet.http.HttpServletRequest
 
 import scala.xml.Node
 
+import org.apache.spark.status.api.v1.ExecutorSummary
 import org.apache.spark.ui.{ToolTips, UIUtils, WebUIPage}
 import org.apache.spark.util.Utils
 
-/** Summary information about an executor to display in the UI. */
-// Needs to be private[ui] because of a false positive MiMa failure.
+// This isn't even used anymore -- but we need to keep it b/c of a MiMa false positive
 private[ui] case class ExecutorSummaryInfo(
     id: String,
     hostPort: String,
@@ -44,6 +44,7 @@ private[ui] case class ExecutorSummaryInfo(
     maxMemory: Long,
     executorLogs: Map[String, String])
 
+
 private[ui] class ExecutorsPage(
     parent: ExecutorsTab,
     threadDumpEnabled: Boolean)
@@ -55,7 +56,8 @@ private[ui] class ExecutorsPage(
     val maxMem = storageStatusList.map(_.maxMem).sum
     val memUsed = storageStatusList.map(_.memUsed).sum
     val diskUsed = storageStatusList.map(_.diskUsed).sum
-    val execInfo = for (statusId <- 0 until storageStatusList.size) yield getExecInfo(statusId)
+    val execInfo = for (statusId <- 0 until storageStatusList.size) yield
+      ExecutorsPage.getExecInfo(listener, statusId)
     val execInfoSorted = execInfo.sortBy(_.id)
     val logsExist = execInfo.filter(_.executorLogs.nonEmpty).nonEmpty
 
@@ -111,7 +113,7 @@ private[ui] class ExecutorsPage(
   }
 
   /** Render an HTML row representing an executor */
-  private def execRow(info: ExecutorSummaryInfo, logsExist: Boolean): Seq[Node] = {
+  private def execRow(info: ExecutorSummary, logsExist: Boolean): Seq[Node] = {
     val maximumMemory = info.maxMemory
     val memoryUsed = info.memoryUsed
     val diskUsed = info.diskUsed
@@ -170,8 +172,11 @@ private[ui] class ExecutorsPage(
     </tr>
   }
 
+}
+
+private[spark] object ExecutorsPage {
   /** Represent an executor's info as a map given a storage status index */
-  private def getExecInfo(statusId: Int): ExecutorSummaryInfo = {
+  def getExecInfo(listener: ExecutorsListener, statusId: Int): ExecutorSummary = {
     val status = listener.storageStatusList(statusId)
     val execId = status.blockManagerId.executorId
     val hostPort = status.blockManagerId.hostPort
@@ -189,7 +194,7 @@ private[ui] class ExecutorsPage(
     val totalShuffleWrite = listener.executorToShuffleWrite.getOrElse(execId, 0L)
     val executorLogs = listener.executorToLogUrls.getOrElse(execId, Map.empty)
 
-    new ExecutorSummaryInfo(
+    new ExecutorSummary(
       execId,
       hostPort,
       rddBlocks,

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala b/core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala
index f6abf27..09323d1 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/AllJobsPage.scala
@@ -271,6 +271,12 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
       val shouldShowCompletedJobs = completedJobs.nonEmpty
       val shouldShowFailedJobs = failedJobs.nonEmpty
 
+      val completedJobNumStr = if (completedJobs.size == listener.numCompletedJobs) {
+        s"${completedJobs.size}"
+      } else {
+        s"${listener.numCompletedJobs}, only showing ${completedJobs.size}"
+      }
+
       val summary: NodeSeq =
         <div>
           <ul class="unstyled">
@@ -295,9 +301,9 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
             }
             {
               if (shouldShowCompletedJobs) {
-                <li>
+                <li id="completed-summary">
                   <a href="#completed"><strong>Completed Jobs:</strong></a>
-                  {completedJobs.size}
+                  {completedJobNumStr}
                 </li>
               }
             }
@@ -305,7 +311,7 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
               if (shouldShowFailedJobs) {
                 <li>
                   <a href="#failed"><strong>Failed Jobs:</strong></a>
-                  {failedJobs.size}
+                  {listener.numFailedJobs}
                 </li>
               }
             }
@@ -322,7 +328,7 @@ private[ui] class AllJobsPage(parent: JobsTab) extends WebUIPage("") {
           activeJobsTable
       }
       if (shouldShowCompletedJobs) {
-        content ++= <h4 id="completed">Completed Jobs ({completedJobs.size})</h4> ++
+        content ++= <h4 id="completed">Completed Jobs ({completedJobNumStr})</h4> ++
           completedJobsTable
       }
       if (shouldShowFailedJobs) {

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/jobs/AllStagesPage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/AllStagesPage.scala b/core/src/main/scala/org/apache/spark/ui/jobs/AllStagesPage.scala
index 236bc8e..a37f739 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/AllStagesPage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/AllStagesPage.scala
@@ -64,6 +64,12 @@ private[ui] class AllStagesPage(parent: StagesTab) extends WebUIPage("") {
       val shouldShowCompletedStages = completedStages.nonEmpty
       val shouldShowFailedStages = failedStages.nonEmpty
 
+      val completedStageNumStr = if (numCompletedStages == completedStages.size) {
+        s"$numCompletedStages"
+      } else {
+        s"$numCompletedStages, only showing ${completedStages.size}"
+      }
+
       val summary: NodeSeq =
         <div>
           <ul class="unstyled">
@@ -98,9 +104,9 @@ private[ui] class AllStagesPage(parent: StagesTab) extends WebUIPage("") {
             }
             {
               if (shouldShowCompletedStages) {
-                <li>
+                <li id="completed-summary">
                   <a href="#completed"><strong>Completed Stages:</strong></a>
-                  {numCompletedStages}
+                  {completedStageNumStr}
                 </li>
               }
             }
@@ -132,7 +138,7 @@ private[ui] class AllStagesPage(parent: StagesTab) extends WebUIPage("") {
         pendingStagesTable.toNodeSeq
       }
       if (shouldShowCompletedStages) {
-        content ++= <h4 id="completed">Completed Stages ({numCompletedStages})</h4> ++
+        content ++= <h4 id="completed">Completed Stages ({completedStageNumStr})</h4> ++
         completedStagesTable.toNodeSeq
       }
       if (shouldShowFailedStages) {

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala b/core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala
index 96cc3d7..7163217 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/JobPage.scala
@@ -187,7 +187,7 @@ private[ui] class JobPage(parent: JobsTab) extends WebUIPage("job") {
       val jobDataOption = listener.jobIdToData.get(jobId)
       if (jobDataOption.isEmpty) {
         val content =
-          <div>
+          <div id="no-info">
             <p>No information to display for job {jobId}</p>
           </div>
         return UIUtils.headerSparkPage(

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala b/core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala
index 8f9aa9f..246e191 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala
@@ -74,6 +74,8 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
   // JobProgressListener's retention limits.
   var numCompletedStages = 0
   var numFailedStages = 0
+  var numCompletedJobs = 0
+  var numFailedJobs = 0
 
   // Misc:
   val executorIdToBlockManagerId = HashMap[ExecutorId, BlockManagerId]()
@@ -217,10 +219,12 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
         completedJobs += jobData
         trimJobsIfNecessary(completedJobs)
         jobData.status = JobExecutionStatus.SUCCEEDED
+        numCompletedJobs += 1
       case JobFailed(exception) =>
         failedJobs += jobData
         trimJobsIfNecessary(failedJobs)
         jobData.status = JobExecutionStatus.FAILED
+        numFailedJobs += 1
     }
     for (stageId <- jobData.stageIds) {
       stageIdToActiveJobIds.get(stageId).foreach { jobsUsingStage =>

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/jobs/PoolPage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/PoolPage.scala b/core/src/main/scala/org/apache/spark/ui/jobs/PoolPage.scala
index d725b9d..f3e0b38 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/PoolPage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/PoolPage.scala
@@ -21,7 +21,7 @@ import javax.servlet.http.HttpServletRequest
 
 import scala.xml.Node
 
-import org.apache.spark.scheduler.{Schedulable, StageInfo}
+import org.apache.spark.scheduler.StageInfo
 import org.apache.spark.ui.{WebUIPage, UIUtils}
 
 /** Page showing specific pool details */

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala b/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
index 6c43058..b01fad8 100644
--- a/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala
@@ -25,11 +25,11 @@ import scala.xml.{Elem, Node, Unparsed}
 import org.apache.commons.lang3.StringEscapeUtils
 
 import org.apache.spark.executor.TaskMetrics
+import org.apache.spark.scheduler.{AccumulableInfo, TaskInfo}
 import org.apache.spark.ui.{ToolTips, WebUIPage, UIUtils}
 import org.apache.spark.ui.jobs.UIData._
 import org.apache.spark.ui.scope.RDDOperationGraph
 import org.apache.spark.util.{Utils, Distribution}
-import org.apache.spark.scheduler.{AccumulableInfo, TaskInfo}
 
 /** Page showing statistics and task list for a given stage */
 private[ui] class StagePage(parent: StagesTab) extends WebUIPage("stage") {
@@ -52,14 +52,22 @@ private[ui] class StagePage(parent: StagesTab) extends WebUIPage("stage") {
       val stageAttemptId = parameterAttempt.toInt
       val stageDataOption = progressListener.stageIdToData.get((stageId, stageAttemptId))
 
-      if (stageDataOption.isEmpty || stageDataOption.get.taskData.isEmpty) {
+      val stageHeader = s"Details for Stage $stageId (Attempt $stageAttemptId)"
+      if (stageDataOption.isEmpty) {
+        val content =
+          <div id="no-info">
+            <p>No information to display for Stage {stageId} (Attempt {stageAttemptId})</p>
+          </div>
+        return UIUtils.headerSparkPage(stageHeader, content, parent)
+
+      }
+      if (stageDataOption.get.taskData.isEmpty) {
         val content =
           <div>
             <h4>Summary Metrics</h4> No tasks have started yet
             <h4>Tasks</h4> No tasks have started yet
           </div>
-        return UIUtils.headerSparkPage(
-          s"Details for Stage $stageId (Attempt $stageAttemptId)", content, parent)
+        return UIUtils.headerSparkPage(stageHeader, content, parent)
       }
 
       val stageData = stageDataOption.get
@@ -458,8 +466,7 @@ private[ui] class StagePage(parent: StagesTab) extends WebUIPage("stage") {
         maybeAccumulableTable ++
         <h4>Tasks</h4> ++ taskTable
 
-      UIUtils.headerSparkPage(
-        "Details for Stage %d".format(stageId), content, parent, showVisualization = true)
+      UIUtils.headerSparkPage(stageHeader, content, parent, showVisualization = true)
     }
   }
 

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/storage/RDDPage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/storage/RDDPage.scala b/core/src/main/scala/org/apache/spark/ui/storage/RDDPage.scala
index 199f731..05f94a7 100644
--- a/core/src/main/scala/org/apache/spark/ui/storage/RDDPage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/storage/RDDPage.scala
@@ -21,8 +21,8 @@ import javax.servlet.http.HttpServletRequest
 
 import scala.xml.Node
 
-import org.apache.spark.storage.{BlockId, BlockStatus, StorageStatus, StorageUtils}
-import org.apache.spark.ui.{WebUIPage, UIUtils}
+import org.apache.spark.status.api.v1.{AllRDDResource, RDDDataDistribution, RDDPartitionInfo}
+import org.apache.spark.ui.{UIUtils, WebUIPage}
 import org.apache.spark.util.Utils
 
 /** Page showing storage details for a given RDD */
@@ -32,28 +32,19 @@ private[ui] class RDDPage(parent: StorageTab) extends WebUIPage("rdd") {
   def render(request: HttpServletRequest): Seq[Node] = {
     val parameterId = request.getParameter("id")
     require(parameterId != null && parameterId.nonEmpty, "Missing id parameter")
-
     val rddId = parameterId.toInt
-    val storageStatusList = listener.storageStatusList
-    val rddInfo = listener.rddInfoList.find(_.id == rddId).getOrElse {
-      // Rather than crashing, render an "RDD Not Found" page
-      return UIUtils.headerSparkPage("RDD Not Found", Seq[Node](), parent)
-    }
+    val rddStorageInfo = AllRDDResource.getRDDStorageInfo(rddId, listener,includeDetails = true)
+      .getOrElse {
+        // Rather than crashing, render an "RDD Not Found" page
+        return UIUtils.headerSparkPage("RDD Not Found", Seq[Node](), parent)
+      }
 
     // Worker table
-    val workers = storageStatusList.map((rddId, _))
-    val workerTable = UIUtils.listingTable(workerHeader, workerRow, workers,
-      id = Some("rdd-storage-by-worker-table"))
+    val workerTable = UIUtils.listingTable(workerHeader, workerRow,
+      rddStorageInfo.dataDistribution.get, id = Some("rdd-storage-by-worker-table"))
 
     // Block table
-    val blockLocations = StorageUtils.getRddBlockLocations(rddId, storageStatusList)
-    val blocks = storageStatusList
-      .flatMap(_.rddBlocksById(rddId))
-      .sortWith(_._1.name < _._1.name)
-      .map { case (blockId, status) =>
-        (blockId, status, blockLocations.get(blockId).getOrElse(Seq[String]("Unknown")))
-      }
-    val blockTable = UIUtils.listingTable(blockHeader, blockRow, blocks,
+    val blockTable = UIUtils.listingTable(blockHeader, blockRow, rddStorageInfo.partitions.get,
       id = Some("rdd-storage-by-block-table"))
 
     val content =
@@ -62,23 +53,23 @@ private[ui] class RDDPage(parent: StorageTab) extends WebUIPage("rdd") {
           <ul class="unstyled">
             <li>
               <strong>Storage Level:</strong>
-              {rddInfo.storageLevel.description}
+              {rddStorageInfo.storageLevel}
             </li>
             <li>
               <strong>Cached Partitions:</strong>
-              {rddInfo.numCachedPartitions}
+              {rddStorageInfo.numCachedPartitions}
             </li>
             <li>
               <strong>Total Partitions:</strong>
-              {rddInfo.numPartitions}
+              {rddStorageInfo.numPartitions}
             </li>
             <li>
               <strong>Memory Size:</strong>
-              {Utils.bytesToString(rddInfo.memSize)}
+              {Utils.bytesToString(rddStorageInfo.memoryUsed)}
             </li>
             <li>
               <strong>Disk Size:</strong>
-              {Utils.bytesToString(rddInfo.diskSize)}
+              {Utils.bytesToString(rddStorageInfo.diskUsed)}
             </li>
           </ul>
         </div>
@@ -86,19 +77,19 @@ private[ui] class RDDPage(parent: StorageTab) extends WebUIPage("rdd") {
 
       <div class="row-fluid">
         <div class="span12">
-          <h4> Data Distribution on {workers.size} Executors </h4>
+          <h4> Data Distribution on {rddStorageInfo.dataDistribution.size} Executors </h4>
           {workerTable}
         </div>
       </div>
 
       <div class="row-fluid">
         <div class="span12">
-          <h4> {blocks.size} Partitions </h4>
+          <h4> {rddStorageInfo.partitions.size} Partitions </h4>
           {blockTable}
         </div>
       </div>;
 
-    UIUtils.headerSparkPage("RDD Storage Info for " + rddInfo.name, content, parent)
+    UIUtils.headerSparkPage("RDD Storage Info for " + rddStorageInfo.name, content, parent)
   }
 
   /** Header fields for the worker table */
@@ -116,34 +107,32 @@ private[ui] class RDDPage(parent: StorageTab) extends WebUIPage("rdd") {
     "Executors")
 
   /** Render an HTML row representing a worker */
-  private def workerRow(worker: (Int, StorageStatus)): Seq[Node] = {
-    val (rddId, status) = worker
+  private def workerRow(worker: RDDDataDistribution): Seq[Node] = {
     <tr>
-      <td>{status.blockManagerId.host + ":" + status.blockManagerId.port}</td>
+      <td>{worker.address}</td>
       <td>
-        {Utils.bytesToString(status.memUsedByRdd(rddId))}
-        ({Utils.bytesToString(status.memRemaining)} Remaining)
+        {Utils.bytesToString(worker.memoryUsed)}
+        ({Utils.bytesToString(worker.memoryRemaining)} Remaining)
       </td>
-      <td>{Utils.bytesToString(status.diskUsedByRdd(rddId))}</td>
+      <td>{Utils.bytesToString(worker.diskUsed)}</td>
     </tr>
   }
 
   /** Render an HTML row representing a block */
-  private def blockRow(row: (BlockId, BlockStatus, Seq[String])): Seq[Node] = {
-    val (id, block, locations) = row
+  private def blockRow(row: RDDPartitionInfo): Seq[Node] = {
     <tr>
-      <td>{id}</td>
+      <td>{row.blockName}</td>
       <td>
-        {block.storageLevel.description}
+        {row.storageLevel}
       </td>
-      <td sorttable_customkey={block.memSize.toString}>
-        {Utils.bytesToString(block.memSize)}
+      <td sorttable_customkey={row.memoryUsed.toString}>
+        {Utils.bytesToString(row.memoryUsed)}
       </td>
-      <td sorttable_customkey={block.diskSize.toString}>
-        {Utils.bytesToString(block.diskSize)}
+      <td sorttable_customkey={row.diskUsed.toString}>
+        {Utils.bytesToString(row.diskUsed)}
       </td>
       <td>
-        {locations.map(l => <span>{l}<br/></span>)}
+        {row.executors.map(l => <span>{l}<br/></span>)}
       </td>
     </tr>
   }

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/storage/StoragePage.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/storage/StoragePage.scala b/core/src/main/scala/org/apache/spark/ui/storage/StoragePage.scala
index 59dc6b5..07db783 100644
--- a/core/src/main/scala/org/apache/spark/ui/storage/StoragePage.scala
+++ b/core/src/main/scala/org/apache/spark/ui/storage/StoragePage.scala
@@ -22,7 +22,7 @@ import javax.servlet.http.HttpServletRequest
 import scala.xml.Node
 
 import org.apache.spark.storage.RDDInfo
-import org.apache.spark.ui.{WebUIPage, UIUtils}
+import org.apache.spark.ui.{UIUtils, WebUIPage}
 import org.apache.spark.util.Utils
 
 /** Page showing list of RDD's currently stored in the cluster */

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/main/scala/org/apache/spark/ui/storage/StorageTab.scala
----------------------------------------------------------------------
diff --git a/core/src/main/scala/org/apache/spark/ui/storage/StorageTab.scala b/core/src/main/scala/org/apache/spark/ui/storage/StorageTab.scala
index 045bd78..0351749 100644
--- a/core/src/main/scala/org/apache/spark/ui/storage/StorageTab.scala
+++ b/core/src/main/scala/org/apache/spark/ui/storage/StorageTab.scala
@@ -35,6 +35,8 @@ private[ui] class StorageTab(parent: SparkUI) extends SparkUITab(parent, "storag
 /**
  * :: DeveloperApi ::
  * A SparkListener that prepares information to be displayed on the BlockManagerUI.
+ *
+ * This class is thread-safe (unlike JobProgressListener)
  */
 @DeveloperApi
 class StorageListener(storageStatusListener: StorageStatusListener) extends SparkListener {
@@ -43,7 +45,9 @@ class StorageListener(storageStatusListener: StorageStatusListener) extends Spar
   def storageStatusList: Seq[StorageStatus] = storageStatusListener.storageStatusList
 
   /** Filter RDD info to include only those with cached partitions */
-  def rddInfoList: Seq[RDDInfo] = _rddInfoMap.values.filter(_.numCachedPartitions > 0).toSeq
+  def rddInfoList: Seq[RDDInfo] = synchronized {
+    _rddInfoMap.values.filter(_.numCachedPartitions > 0).toSeq
+  }
 
   /** Update the storage info of the RDDs whose blocks are among the given updated blocks */
   private def updateRDDInfo(updatedBlocks: Seq[(BlockId, BlockStatus)]): Unit = {

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json
new file mode 100644
index 0000000..ce4fe80
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/application_list_json_expectation.json
@@ -0,0 +1,53 @@
+[ {
+  "id" : "local-1430917381534",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-05-06T13:03:00.893GMT",
+    "endTime" : "2015-05-06T13:03:11.398GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1426533911241",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "attemptId" : "2",
+    "startTime" : "2015-03-17T23:11:50.242GMT",
+    "endTime" : "2015-03-17T23:12:25.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  }, {
+    "attemptId" : "1",
+    "startTime" : "2015-03-16T19:25:10.242GMT",
+    "endTime" : "2015-03-16T19:25:45.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1425081759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-28T00:02:38.277GMT",
+    "endTime" : "2015-02-28T00:02:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1422981780767",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:59.720GMT",
+    "endTime" : "2015-02-03T16:43:08.731GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1422981759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:38.277GMT",
+    "endTime" : "2015-02-03T16:42:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/complete_stage_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/complete_stage_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/complete_stage_list_json_expectation.json
new file mode 100644
index 0000000..31ac9be
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/complete_stage_list_json_expectation.json
@@ -0,0 +1,67 @@
+[ {
+  "status" : "COMPLETE",
+  "stageId" : 3,
+  "attemptId" : 0,
+  "numActiveTasks" : 0,
+  "numCompleteTasks" : 8,
+  "numFailedTasks" : 0,
+  "executorRunTime" : 162,
+  "inputBytes" : 160,
+  "inputRecords" : 0,
+  "outputBytes" : 0,
+  "outputRecords" : 0,
+  "shuffleReadBytes" : 0,
+  "shuffleReadRecords" : 0,
+  "shuffleWriteBytes" : 0,
+  "shuffleWriteRecords" : 0,
+  "memoryBytesSpilled" : 0,
+  "diskBytesSpilled" : 0,
+  "name" : "count at <console>:17",
+  "details" : "org.apache.spark.rdd.RDD.count(RDD.scala:910)\n$line19.$read$$iwC$$iwC$$iwC$$iwC.<init>(<console>:17)\n$line19.$read$$iwC$$iwC$$iwC.<init>(<console>:22)\n$line19.$read$$iwC$$iwC.<init>(<console>:24)\n$line19.$read$$iwC.<init>(<console>:26)\n$line19.$read.<init>(<console>:28)\n$line19.$read$.<init>(<console>:32)\n$line19.$read$.<clinit>(<console>)\n$line19.$eval$.<init>(<console>:7)\n$line19.$eval$.<clinit>(<console>)\n$line19.$eval.$print(<console>)\nsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\nsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\nsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\njava.lang.reflect.Method.invoke(Method.java:606)\norg.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852)\norg.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125)\norg.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:674)\norg.apache.spark.repl.Spark
 IMain.interpret(SparkIMain.scala:705)\norg.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:669)",
+  "schedulingPool" : "default",
+  "accumulatorUpdates" : [ ]
+}, {
+  "status" : "COMPLETE",
+  "stageId" : 1,
+  "attemptId" : 0,
+  "numActiveTasks" : 0,
+  "numCompleteTasks" : 8,
+  "numFailedTasks" : 0,
+  "executorRunTime" : 3476,
+  "inputBytes" : 28000128,
+  "inputRecords" : 0,
+  "outputBytes" : 0,
+  "outputRecords" : 0,
+  "shuffleReadBytes" : 0,
+  "shuffleReadRecords" : 0,
+  "shuffleWriteBytes" : 13180,
+  "shuffleWriteRecords" : 0,
+  "memoryBytesSpilled" : 0,
+  "diskBytesSpilled" : 0,
+  "name" : "map at <console>:14",
+  "details" : "org.apache.spark.rdd.RDD.map(RDD.scala:271)\n$line10.$read$$iwC$$iwC$$iwC$$iwC.<init>(<console>:14)\n$line10.$read$$iwC$$iwC$$iwC.<init>(<console>:19)\n$line10.$read$$iwC$$iwC.<init>(<console>:21)\n$line10.$read$$iwC.<init>(<console>:23)\n$line10.$read.<init>(<console>:25)\n$line10.$read$.<init>(<console>:29)\n$line10.$read$.<clinit>(<console>)\n$line10.$eval$.<init>(<console>:7)\n$line10.$eval$.<clinit>(<console>)\n$line10.$eval.$print(<console>)\nsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\nsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\nsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\njava.lang.reflect.Method.invoke(Method.java:606)\norg.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852)\norg.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125)\norg.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:674)\norg.apache.spark.repl.SparkIM
 ain.interpret(SparkIMain.scala:705)\norg.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:669)",
+  "schedulingPool" : "default",
+  "accumulatorUpdates" : [ ]
+}, {
+  "status" : "COMPLETE",
+  "stageId" : 0,
+  "attemptId" : 0,
+  "numActiveTasks" : 0,
+  "numCompleteTasks" : 8,
+  "numFailedTasks" : 0,
+  "executorRunTime" : 4338,
+  "inputBytes" : 0,
+  "inputRecords" : 0,
+  "outputBytes" : 0,
+  "outputRecords" : 0,
+  "shuffleReadBytes" : 0,
+  "shuffleReadRecords" : 0,
+  "shuffleWriteBytes" : 0,
+  "shuffleWriteRecords" : 0,
+  "memoryBytesSpilled" : 0,
+  "diskBytesSpilled" : 0,
+  "name" : "count at <console>:15",
+  "details" : "org.apache.spark.rdd.RDD.count(RDD.scala:910)\n$line9.$read$$iwC$$iwC$$iwC$$iwC.<init>(<console>:15)\n$line9.$read$$iwC$$iwC$$iwC.<init>(<console>:20)\n$line9.$read$$iwC$$iwC.<init>(<console>:22)\n$line9.$read$$iwC.<init>(<console>:24)\n$line9.$read.<init>(<console>:26)\n$line9.$read$.<init>(<console>:30)\n$line9.$read$.<clinit>(<console>)\n$line9.$eval$.<init>(<console>:7)\n$line9.$eval$.<clinit>(<console>)\n$line9.$eval.$print(<console>)\nsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\nsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\nsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\njava.lang.reflect.Method.invoke(Method.java:606)\norg.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852)\norg.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125)\norg.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:674)\norg.apache.spark.repl.SparkIMain.inte
 rpret(SparkIMain.scala:705)\norg.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:669)",
+  "schedulingPool" : "default",
+  "accumulatorUpdates" : [ ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json
new file mode 100644
index 0000000..ce4fe80
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/completed_app_list_json_expectation.json
@@ -0,0 +1,53 @@
+[ {
+  "id" : "local-1430917381534",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-05-06T13:03:00.893GMT",
+    "endTime" : "2015-05-06T13:03:11.398GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1426533911241",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "attemptId" : "2",
+    "startTime" : "2015-03-17T23:11:50.242GMT",
+    "endTime" : "2015-03-17T23:12:25.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  }, {
+    "attemptId" : "1",
+    "startTime" : "2015-03-16T19:25:10.242GMT",
+    "endTime" : "2015-03-16T19:25:45.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1425081759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-28T00:02:38.277GMT",
+    "endTime" : "2015-02-28T00:02:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1422981780767",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:59.720GMT",
+    "endTime" : "2015-02-03T16:43:08.731GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1422981759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:38.277GMT",
+    "endTime" : "2015-02-03T16:42:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/executor_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/executor_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/executor_list_json_expectation.json
new file mode 100644
index 0000000..cb622e1
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/executor_list_json_expectation.json
@@ -0,0 +1,17 @@
+[ {
+  "id" : "<driver>",
+  "hostPort" : "localhost:57971",
+  "rddBlocks" : 8,
+  "memoryUsed" : 28000128,
+  "diskUsed" : 0,
+  "activeTasks" : 0,
+  "failedTasks" : 1,
+  "completedTasks" : 31,
+  "totalTasks" : 32,
+  "totalDuration" : 8820,
+  "totalInputBytes" : 28000288,
+  "totalShuffleRead" : 0,
+  "totalShuffleWrite" : 13180,
+  "maxMemory" : 278302556,
+  "executorLogs" : { }
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/failed_stage_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/failed_stage_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/failed_stage_list_json_expectation.json
new file mode 100644
index 0000000..bff6a4f
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/failed_stage_list_json_expectation.json
@@ -0,0 +1,23 @@
+[ {
+  "status" : "FAILED",
+  "stageId" : 2,
+  "attemptId" : 0,
+  "numActiveTasks" : 0,
+  "numCompleteTasks" : 7,
+  "numFailedTasks" : 1,
+  "executorRunTime" : 278,
+  "inputBytes" : 0,
+  "inputRecords" : 0,
+  "outputBytes" : 0,
+  "outputRecords" : 0,
+  "shuffleReadBytes" : 0,
+  "shuffleReadRecords" : 0,
+  "shuffleWriteBytes" : 0,
+  "shuffleWriteRecords" : 0,
+  "memoryBytesSpilled" : 0,
+  "diskBytesSpilled" : 0,
+  "name" : "count at <console>:20",
+  "details" : "org.apache.spark.rdd.RDD.count(RDD.scala:910)\n$line11.$read$$iwC$$iwC$$iwC$$iwC.<init>(<console>:20)\n$line11.$read$$iwC$$iwC$$iwC.<init>(<console>:25)\n$line11.$read$$iwC$$iwC.<init>(<console>:27)\n$line11.$read$$iwC.<init>(<console>:29)\n$line11.$read.<init>(<console>:31)\n$line11.$read$.<init>(<console>:35)\n$line11.$read$.<clinit>(<console>)\n$line11.$eval$.<init>(<console>:7)\n$line11.$eval$.<clinit>(<console>)\n$line11.$eval.$print(<console>)\nsun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\nsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)\nsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\njava.lang.reflect.Method.invoke(Method.java:606)\norg.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:852)\norg.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1125)\norg.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:674)\norg.apache.spark.repl.Spark
 IMain.interpret(SparkIMain.scala:705)\norg.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:669)",
+  "schedulingPool" : "default",
+  "accumulatorUpdates" : [ ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_1__expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_1__expectation.json b/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_1__expectation.json
new file mode 100644
index 0000000..2e92e1f
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_1__expectation.json
@@ -0,0 +1,15 @@
+[ {
+  "jobId" : 0,
+  "name" : "foreach at <console>:15",
+  "stageIds" : [ 0 ],
+  "status" : "SUCCEEDED",
+  "numTasks" : 8,
+  "numActiveTasks" : 0,
+  "numCompletedTasks" : 8,
+  "numSkippedTasks" : 8,
+  "numFailedTasks" : 0,
+  "numActiveStages" : 0,
+  "numCompletedStages" : 1,
+  "numSkippedStages" : 0,
+  "numFailedStages" : 0
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_2__expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_2__expectation.json b/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_2__expectation.json
new file mode 100644
index 0000000..2e92e1f
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/job_list_from_multi_attempt_app_json_2__expectation.json
@@ -0,0 +1,15 @@
+[ {
+  "jobId" : 0,
+  "name" : "foreach at <console>:15",
+  "stageIds" : [ 0 ],
+  "status" : "SUCCEEDED",
+  "numTasks" : 8,
+  "numActiveTasks" : 0,
+  "numCompletedTasks" : 8,
+  "numSkippedTasks" : 8,
+  "numFailedTasks" : 0,
+  "numActiveStages" : 0,
+  "numCompletedStages" : 1,
+  "numSkippedStages" : 0,
+  "numFailedStages" : 0
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/job_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/job_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/job_list_json_expectation.json
new file mode 100644
index 0000000..cab4750
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/job_list_json_expectation.json
@@ -0,0 +1,43 @@
+[ {
+  "jobId" : 2,
+  "name" : "count at <console>:17",
+  "stageIds" : [ 3 ],
+  "status" : "SUCCEEDED",
+  "numTasks" : 8,
+  "numActiveTasks" : 0,
+  "numCompletedTasks" : 8,
+  "numSkippedTasks" : 8,
+  "numFailedTasks" : 0,
+  "numActiveStages" : 0,
+  "numCompletedStages" : 1,
+  "numSkippedStages" : 0,
+  "numFailedStages" : 0
+}, {
+  "jobId" : 1,
+  "name" : "count at <console>:20",
+  "stageIds" : [ 1, 2 ],
+  "status" : "FAILED",
+  "numTasks" : 16,
+  "numActiveTasks" : 0,
+  "numCompletedTasks" : 15,
+  "numSkippedTasks" : 15,
+  "numFailedTasks" : 1,
+  "numActiveStages" : 0,
+  "numCompletedStages" : 1,
+  "numSkippedStages" : 0,
+  "numFailedStages" : 1
+}, {
+  "jobId" : 0,
+  "name" : "count at <console>:15",
+  "stageIds" : [ 0 ],
+  "status" : "SUCCEEDED",
+  "numTasks" : 8,
+  "numActiveTasks" : 0,
+  "numCompletedTasks" : 8,
+  "numSkippedTasks" : 8,
+  "numFailedTasks" : 0,
+  "numActiveStages" : 0,
+  "numCompletedStages" : 1,
+  "numSkippedStages" : 0,
+  "numFailedStages" : 0
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json
new file mode 100644
index 0000000..483632a
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/maxDate2_app_list_json_expectation.json
@@ -0,0 +1,10 @@
+[ {
+  "id" : "local-1422981759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:38.277GMT",
+    "endTime" : "2015-02-03T16:42:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json
new file mode 100644
index 0000000..4b85690
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/maxDate_app_list_json_expectation.json
@@ -0,0 +1,19 @@
+[ {
+  "id" : "local-1422981780767",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:59.720GMT",
+    "endTime" : "2015-02-03T16:43:08.731GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1422981759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:38.277GMT",
+    "endTime" : "2015-02-03T16:42:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json
new file mode 100644
index 0000000..dca86fe
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/minDate_app_list_json_expectation.json
@@ -0,0 +1,35 @@
+[ {
+  "id" : "local-1430917381534",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-05-06T13:03:00.893GMT",
+    "endTime" : "2015-05-06T13:03:11.398GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1426533911241",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "attemptId" : "2",
+    "startTime" : "2015-03-17T23:11:50.242GMT",
+    "endTime" : "2015-03-17T23:12:25.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  }, {
+    "attemptId" : "1",
+    "startTime" : "2015-03-16T19:25:10.242GMT",
+    "endTime" : "2015-03-16T19:25:45.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}, {
+  "id" : "local-1425081759269",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-28T00:02:38.277GMT",
+    "endTime" : "2015-02-28T00:02:46.912GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json
new file mode 100644
index 0000000..07489ad
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/one_app_json_expectation.json
@@ -0,0 +1,10 @@
+{
+  "id" : "local-1422981780767",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "startTime" : "2015-02-03T16:42:59.720GMT",
+    "endTime" : "2015-02-03T16:43:08.731GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json
new file mode 100644
index 0000000..8f3d716
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/one_app_multi_attempt_json_expectation.json
@@ -0,0 +1,17 @@
+{
+  "id" : "local-1426533911241",
+  "name" : "Spark shell",
+  "attempts" : [ {
+    "attemptId" : "2",
+    "startTime" : "2015-03-17T23:11:50.242GMT",
+    "endTime" : "2015-03-17T23:12:25.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  }, {
+    "attemptId" : "1",
+    "startTime" : "2015-03-16T19:25:10.242GMT",
+    "endTime" : "2015-03-16T19:25:45.177GMT",
+    "sparkUser" : "irashid",
+    "completed" : true
+  } ]
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/one_job_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/one_job_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_job_json_expectation.json
new file mode 100644
index 0000000..4a29072
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/one_job_json_expectation.json
@@ -0,0 +1,15 @@
+{
+  "jobId" : 0,
+  "name" : "count at <console>:15",
+  "stageIds" : [ 0 ],
+  "status" : "SUCCEEDED",
+  "numTasks" : 8,
+  "numActiveTasks" : 0,
+  "numCompletedTasks" : 8,
+  "numSkippedTasks" : 8,
+  "numFailedTasks" : 0,
+  "numActiveStages" : 0,
+  "numCompletedStages" : 1,
+  "numSkippedStages" : 0,
+  "numFailedStages" : 0
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/one_rdd_storage_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/one_rdd_storage_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_rdd_storage_json_expectation.json
new file mode 100644
index 0000000..38b5328
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/one_rdd_storage_json_expectation.json
@@ -0,0 +1,64 @@
+{
+  "id" : 0,
+  "name" : "0",
+  "numPartitions" : 8,
+  "numCachedPartitions" : 8,
+  "storageLevel" : "Memory Deserialized 1x Replicated",
+  "memoryUsed" : 28000128,
+  "diskUsed" : 0,
+  "dataDistribution" : [ {
+    "address" : "localhost:57971",
+    "memoryUsed" : 28000128,
+    "memoryRemaining" : 250302428,
+    "diskUsed" : 0
+  } ],
+  "partitions" : [ {
+    "blockName" : "rdd_0_0",
+    "storageLevel" : "Memory Deserialized 1x Replicated",
+    "memoryUsed" : 3500016,
+    "diskUsed" : 0,
+    "executors" : [ "localhost:57971" ]
+  }, {
+    "blockName" : "rdd_0_1",
+    "storageLevel" : "Memory Deserialized 1x Replicated",
+    "memoryUsed" : 3500016,
+    "diskUsed" : 0,
+    "executors" : [ "localhost:57971" ]
+  }, {
+    "blockName" : "rdd_0_2",
+    "storageLevel" : "Memory Deserialized 1x Replicated",
+    "memoryUsed" : 3500016,
+    "diskUsed" : 0,
+    "executors" : [ "localhost:57971" ]
+  }, {
+    "blockName" : "rdd_0_3",
+    "storageLevel" : "Memory Deserialized 1x Replicated",
+    "memoryUsed" : 3500016,
+    "diskUsed" : 0,
+    "executors" : [ "localhost:57971" ]
+  }, {
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\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/one_stage_attempt_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/one_stage_attempt_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_stage_attempt_json_expectation.json
new file mode 100644
index 0000000..111cb81
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/one_stage_attempt_json_expectation.json
@@ -0,0 +1,270 @@
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\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/one_stage_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/one_stage_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/one_stage_json_expectation.json
new file mode 100644
index 0000000..ef339f8
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/one_stage_json_expectation.json
@@ -0,0 +1,270 @@
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+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/rdd_list_storage_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/rdd_list_storage_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/rdd_list_storage_json_expectation.json
new file mode 100644
index 0000000..f79a310
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/rdd_list_storage_json_expectation.json
@@ -0,0 +1,9 @@
+[ {
+  "id" : 0,
+  "name" : "0",
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+  "numCachedPartitions" : 8,
+  "storageLevel" : "Memory Deserialized 1x Replicated",
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+  "diskUsed" : 0
+} ]
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/spark/blob/532bfdad/core/src/test/resources/HistoryServerExpectations/running_app_list_json_expectation.json
----------------------------------------------------------------------
diff --git a/core/src/test/resources/HistoryServerExpectations/running_app_list_json_expectation.json b/core/src/test/resources/HistoryServerExpectations/running_app_list_json_expectation.json
new file mode 100644
index 0000000..8878e54
--- /dev/null
+++ b/core/src/test/resources/HistoryServerExpectations/running_app_list_json_expectation.json
@@ -0,0 +1 @@
+[ ]
\ No newline at end of file


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