panbingkun commented on code in PR #39192:
URL: https://github.com/apache/spark/pull/39192#discussion_r1058307597


##########
core/src/main/scala/org/apache/spark/status/protobuf/StageDataWrapperSerializer.scala:
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@@ -0,0 +1,627 @@
+/*
+ * 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.protobuf
+
+import java.util.Date
+
+import collection.JavaConverters._
+import org.apache.commons.collections4.MapUtils
+
+import org.apache.spark.status.StageDataWrapper
+import org.apache.spark.status.api.v1.{ExecutorMetricsDistributions, 
ExecutorPeakMetricsDistributions, InputMetricDistributions, InputMetrics, 
OutputMetricDistributions, OutputMetrics, ShuffleReadMetricDistributions, 
ShuffleReadMetrics, ShuffleWriteMetricDistributions, ShuffleWriteMetrics, 
SpeculationStageSummary, StageData, StageStatus, TaskData, 
TaskMetricDistributions, TaskMetrics}
+import org.apache.spark.status.protobuf.Utils.getOptional
+import org.apache.spark.util.Utils.weakIntern
+
+class StageDataWrapperSerializer extends ProtobufSerDe {
+
+  override val supportClass: Class[_] = classOf[StageDataWrapper]
+
+  override def serialize(input: Any): Array[Byte] =
+    serialize(input.asInstanceOf[StageDataWrapper])
+
+  private def serialize(s: StageDataWrapper): Array[Byte] = {
+    val builder = StoreTypes.StageDataWrapper.newBuilder()
+    builder.setInfo(serializeStageData(s.info))
+    s.jobIds.foreach(id => builder.addJobIds(id.toLong))
+    s.locality.foreach { entry =>
+      builder.putLocality(entry._1, entry._2)
+    }
+    builder.build().toByteArray
+  }
+
+  private def serializeStageData(stageData: StageData): StoreTypes.StageData = 
{
+    val stageDataBuilder = StoreTypes.StageData.newBuilder()
+    stageDataBuilder
+      .setStatus(serializeStageStatus(stageData.status))
+      .setStageId(stageData.stageId.toLong)
+      .setAttemptId(stageData.attemptId)
+      .setNumTasks(stageData.numTasks)
+      .setNumActiveTasks(stageData.numActiveTasks)
+      .setNumCompleteTasks(stageData.numCompleteTasks)
+      .setNumFailedTasks(stageData.numFailedTasks)
+      .setNumKilledTasks(stageData.numKilledTasks)
+      .setNumCompletedIndices(stageData.numCompletedIndices)
+      .setExecutorDeserializeTime(stageData.executorDeserializeTime)
+      .setExecutorDeserializeCpuTime(stageData.executorDeserializeCpuTime)
+      .setExecutorRunTime(stageData.executorRunTime)
+      .setExecutorCpuTime(stageData.executorCpuTime)
+      .setResultSize(stageData.resultSize)
+      .setJvmGcTime(stageData.jvmGcTime)
+      .setResultSerializationTime(stageData.resultSerializationTime)
+      .setMemoryBytesSpilled(stageData.memoryBytesSpilled)
+      .setDiskBytesSpilled(stageData.diskBytesSpilled)
+      .setPeakExecutionMemory(stageData.peakExecutionMemory)
+      .setInputBytes(stageData.inputBytes)
+      .setInputRecords(stageData.inputRecords)
+      .setOutputBytes(stageData.outputBytes)
+      .setOutputRecords(stageData.outputRecords)
+      .setShuffleRemoteBlocksFetched(stageData.shuffleRemoteBlocksFetched)
+      .setShuffleLocalBlocksFetched(stageData.shuffleLocalBlocksFetched)
+      .setShuffleFetchWaitTime(stageData.shuffleFetchWaitTime)
+      .setShuffleRemoteBytesRead(stageData.shuffleRemoteBytesRead)
+      .setShuffleRemoteBytesReadToDisk(stageData.shuffleRemoteBytesReadToDisk)
+      .setShuffleLocalBytesRead(stageData.shuffleLocalBytesRead)
+      .setShuffleReadBytes(stageData.shuffleReadBytes)
+      .setShuffleReadRecords(stageData.shuffleReadRecords)
+      .setShuffleWriteBytes(stageData.shuffleWriteBytes)
+      .setShuffleWriteTime(stageData.shuffleWriteTime)
+      .setShuffleWriteRecords(stageData.shuffleWriteRecords)
+      .setName(stageData.name)
+      .setDetails(stageData.details)
+      .setSchedulingPool(stageData.schedulingPool)
+      .setResourceProfileId(stageData.resourceProfileId)
+    stageData.submissionTime.foreach { d =>
+      stageDataBuilder.setSubmissionTime(d.getTime)
+    }
+    stageData.firstTaskLaunchedTime.foreach { d =>
+      stageDataBuilder.setFirstTaskLaunchedTime(d.getTime)
+    }
+    stageData.completionTime.foreach { d =>
+      stageDataBuilder.setCompletionTime(d.getTime)
+    }
+    stageData.failureReason.foreach { fr =>
+      stageDataBuilder.setFailureReason(fr)
+    }
+    stageData.description.foreach { d =>
+      stageDataBuilder.setDescription(d)
+    }
+    stageData.rddIds.foreach(id => stageDataBuilder.addRddIds(id.toLong))
+    stageData.accumulatorUpdates.foreach { update =>
+      stageDataBuilder.addAccumulatorUpdates(
+        AccumulableInfoSerializer.serializeAccumulableInfo(update))
+    }
+    stageData.tasks.foreach { t =>
+      t.foreach { entry =>
+        stageDataBuilder.putTasks(entry._1, serializeTaskData(entry._2))
+      }
+    }
+    stageData.executorSummary.foreach { es =>
+      es.foreach { entry =>
+        stageDataBuilder.putExecutorSummary(entry._1,
+          
ExecutorStageSummarySerializer.serializeExecutorStageSummary(entry._2))
+      }
+    }
+    stageData.speculationSummary.foreach { ss =>
+      
stageDataBuilder.setSpeculationSummary(serializeSpeculationStageSummary(ss))
+    }
+    stageData.killedTasksSummary.foreach { entry =>
+      stageDataBuilder.putKilledTasksSummary(entry._1, entry._2)
+    }
+    stageData.peakExecutorMetrics.foreach { pem =>
+      
stageDataBuilder.setPeakExecutorMetrics(ExecutorMetricsSerializer.serialize(pem))
+    }
+    stageData.taskMetricsDistributions.foreach { tmd =>
+      
stageDataBuilder.setTaskMetricsDistributions(serializeTaskMetricDistributions(tmd))
+    }
+    stageData.executorMetricsDistributions.foreach { emd =>
+      
stageDataBuilder.setExecutorMetricsDistributions(serializeExecutorMetricsDistributions(emd))
+    }
+    stageDataBuilder.build()
+  }
+
+  private def serializeStageStatus(s: StageStatus): 
StoreTypes.StageData.StageStatus = {
+    StoreTypes.StageData.StageStatus.valueOf(s.toString)
+  }
+
+  private def serializeTaskData(t: TaskData): StoreTypes.TaskData = {
+    val taskDataBuilder = StoreTypes.TaskData.newBuilder()
+    taskDataBuilder
+      .setTaskId(t.taskId)
+      .setIndex(t.index)
+      .setAttempt(t.attempt)
+      .setPartitionId(t.partitionId)
+      .setLaunchTime(t.launchTime.getTime)
+      .setExecutorId(t.executorId)
+      .setHost(t.host)
+      .setStatus(t.status)
+      .setTaskLocality(t.taskLocality)
+      .setSpeculative(t.speculative)
+      .setSchedulerDelay(t.schedulerDelay)
+      .setGettingResultTime(t.gettingResultTime)
+    t.resultFetchStart.foreach { rfs =>
+      taskDataBuilder.setResultFetchStart(rfs.getTime)
+    }
+    t.duration.foreach { d =>
+      taskDataBuilder.setDuration(d)
+    }
+    t.accumulatorUpdates.foreach { update =>
+      taskDataBuilder.addAccumulatorUpdates(
+        AccumulableInfoSerializer.serializeAccumulableInfo(update))
+    }
+    t.errorMessage.foreach { em =>
+      taskDataBuilder.setErrorMessage(em)
+    }
+    t.taskMetrics.foreach { tm =>
+      taskDataBuilder.setTaskMetrics(serializeTaskMetrics(tm))
+    }
+    t.executorLogs.foreach { entry =>
+      taskDataBuilder.putExecutorLogs(entry._1, entry._2)
+    }
+    taskDataBuilder.build()
+  }
+
+  private def serializeTaskMetrics(tm: TaskMetrics): StoreTypes.TaskMetrics = {
+    val taskMetricsBuilder = StoreTypes.TaskMetrics.newBuilder()
+    taskMetricsBuilder
+      .setExecutorDeserializeTime(tm.executorDeserializeTime)
+      .setExecutorDeserializeCpuTime(tm.executorDeserializeCpuTime)
+      .setExecutorRunTime(tm.executorRunTime)
+      .setExecutorCpuTime(tm.executorCpuTime)
+      .setResultSize(tm.resultSize)
+      .setJvmGcTime(tm.jvmGcTime)
+      .setResultSerializationTime(tm.resultSerializationTime)
+      .setMemoryBytesSpilled(tm.memoryBytesSpilled)
+      .setDiskBytesSpilled(tm.diskBytesSpilled)
+      .setPeakExecutionMemory(tm.peakExecutionMemory)
+      .setInputMetrics(serializeInputMetrics(tm.inputMetrics))
+      .setOutputMetrics(serializeOutputMetrics(tm.outputMetrics))
+      
.setShuffleReadMetrics(serializeShuffleReadMetrics(tm.shuffleReadMetrics))
+      
.setShuffleWriteMetrics(serializeShuffleWriteMetrics(tm.shuffleWriteMetrics))
+    taskMetricsBuilder.build()
+  }
+
+  private def serializeInputMetrics(im: InputMetrics): StoreTypes.InputMetrics 
= {
+    StoreTypes.InputMetrics.newBuilder()
+      .setBytesRead(im.bytesRead)
+      .setRecordsRead(im.recordsRead)
+      .build()
+  }
+
+  private def serializeOutputMetrics(om: OutputMetrics): 
StoreTypes.OutputMetrics = {
+    StoreTypes.OutputMetrics.newBuilder()
+      .setBytesWritten(om.bytesWritten)
+      .setRecordsWritten(om.recordsWritten)
+      .build()
+  }
+
+  private def serializeShuffleReadMetrics(
+      srm: ShuffleReadMetrics): StoreTypes.ShuffleReadMetrics = {
+    StoreTypes.ShuffleReadMetrics.newBuilder()
+      .setRemoteBlocksFetched(srm.remoteBlocksFetched)
+      .setLocalBlocksFetched(srm.localBlocksFetched)
+      .setFetchWaitTime(srm.fetchWaitTime)
+      .setRemoteBytesRead(srm.remoteBytesRead)
+      .setRemoteBytesReadToDisk(srm.remoteBytesReadToDisk)
+      .setLocalBytesRead(srm.localBytesRead)
+      .setRecordsRead(srm.recordsRead)
+      .build()
+  }
+
+  private def serializeShuffleWriteMetrics(
+      swm: ShuffleWriteMetrics): StoreTypes.ShuffleWriteMetrics = {
+    StoreTypes.ShuffleWriteMetrics.newBuilder()
+      .setBytesWritten(swm.bytesWritten)
+      .setWriteTime(swm.writeTime)
+      .setRecordsWritten(swm.recordsWritten)
+      .build()
+  }
+
+  private def serializeSpeculationStageSummary(
+      sss: SpeculationStageSummary): StoreTypes.SpeculationStageSummary = {
+    StoreTypes.SpeculationStageSummary.newBuilder()
+      .setNumTasks(sss.numTasks)
+      .setNumActiveTasks(sss.numActiveTasks)
+      .setNumCompletedTasks(sss.numCompletedTasks)
+      .setNumFailedTasks(sss.numFailedTasks)
+      .setNumKilledTasks(sss.numKilledTasks)
+      .build()
+  }
+
+  private def serializeTaskMetricDistributions(
+      tmd: TaskMetricDistributions): StoreTypes.TaskMetricDistributions = {
+    val builder = StoreTypes.TaskMetricDistributions.newBuilder()
+    tmd.quantiles.foreach(q => builder.addQuantiles(q))
+    tmd.duration.foreach(d => builder.addDuration(d))
+    tmd.executorDeserializeTime.foreach(edt => 
builder.addExecutorDeserializeTime(edt))
+    tmd.executorDeserializeCpuTime.foreach(edct => 
builder.addExecutorDeserializeCpuTime(edct))
+    tmd.executorRunTime.foreach(ert => builder.addExecutorRunTime(ert))
+    tmd.executorCpuTime.foreach(ect => builder.addExecutorCpuTime(ect))
+    tmd.resultSize.foreach(rs => builder.addResultSize(rs))
+    tmd.jvmGcTime.foreach(jgt => builder.addJvmGcTime(jgt))
+    tmd.resultSerializationTime.foreach(rst => 
builder.addResultSerializationTime(rst))
+    tmd.gettingResultTime.foreach(grt => builder.addGettingResultTime(grt))
+    tmd.schedulerDelay.foreach(sd => builder.addSchedulerDelay(sd))
+    tmd.peakExecutionMemory.foreach(pem => builder.addPeakExecutionMemory(pem))
+    tmd.memoryBytesSpilled.foreach(mbs => builder.addMemoryBytesSpilled(mbs))
+    tmd.diskBytesSpilled.foreach(dbs => builder.addDiskBytesSpilled(dbs))
+    builder
+      .setInputMetrics(serializeInputMetricDistributions(tmd.inputMetrics))
+      .setOutputMetrics(serializeOutputMetricDistributions(tmd.outputMetrics))
+      
.setShuffleReadMetrics(serializeShuffleReadMetricDistributions(tmd.shuffleReadMetrics))
+      
.setShuffleWriteMetrics(serializeShuffleWriteMetricDistributions(tmd.shuffleWriteMetrics))
+      .build()
+  }
+
+  private def serializeInputMetricDistributions(
+      imd: InputMetricDistributions): StoreTypes.InputMetricDistributions = {
+    val builder = StoreTypes.InputMetricDistributions.newBuilder()
+    imd.bytesRead.foreach(br => builder.addBytesRead(br))
+    imd.recordsRead.foreach(rr => builder.addRecordsRead(rr))
+    builder.build()
+  }
+
+  private def serializeOutputMetricDistributions(
+      omd: OutputMetricDistributions): StoreTypes.OutputMetricDistributions = {
+    val builder = StoreTypes.OutputMetricDistributions.newBuilder()
+    omd.bytesWritten.foreach(bw => builder.addBytesWritten(bw))
+    omd.recordsWritten.foreach(rw => builder.addRecordsWritten(rw))
+    builder.build()
+  }
+
+  private def serializeShuffleReadMetricDistributions(
+      srmd: ShuffleReadMetricDistributions): 
StoreTypes.ShuffleReadMetricDistributions = {
+    val builder = StoreTypes.ShuffleReadMetricDistributions.newBuilder()
+    srmd.readBytes.foreach(rb => builder.addReadBytes(rb))
+    srmd.readRecords.foreach(rr => builder.addReadRecords(rr))
+    srmd.remoteBlocksFetched.foreach(rbf => 
builder.addRemoteBlocksFetched(rbf))
+    srmd.localBlocksFetched.foreach(lbf => builder.addLocalBlocksFetched(lbf))
+    srmd.fetchWaitTime.foreach(fwt => builder.addFetchWaitTime(fwt))
+    srmd.remoteBytesRead.foreach(rbr => builder.addRemoteBytesRead(rbr))
+    srmd.remoteBytesReadToDisk.foreach(rbrtd => 
builder.addRemoteBytesReadToDisk(rbrtd))
+    srmd.totalBlocksFetched.foreach(tbf => builder.addTotalBlocksFetched(tbf))
+    builder.build()
+  }
+
+  private def serializeShuffleWriteMetricDistributions(
+      swmd: ShuffleWriteMetricDistributions): 
StoreTypes.ShuffleWriteMetricDistributions = {
+    val builder = StoreTypes.ShuffleWriteMetricDistributions.newBuilder()
+    swmd.writeBytes.foreach(wb => builder.addWriteBytes(wb))
+    swmd.writeRecords.foreach(wr => builder.addWriteRecords(wr))
+    swmd.writeTime.foreach(wt => builder.addWriteTime(wt))
+    builder.build()
+  }
+
+  private def serializeExecutorMetricsDistributions(
+      emd: ExecutorMetricsDistributions): 
StoreTypes.ExecutorMetricsDistributions = {
+    val builder = StoreTypes.ExecutorMetricsDistributions.newBuilder()
+    emd.quantiles.foreach(q => builder.addQuantiles(q))
+    emd.taskTime.foreach(tt => builder.addTaskTime(tt))
+    emd.failedTasks.foreach(ft => builder.addFailedTasks(ft))
+    emd.succeededTasks.foreach(st => builder.addSucceededTasks(st))
+    emd.killedTasks.foreach(kt => builder.addKilledTasks(kt))
+    emd.inputBytes.foreach(ib => builder.addInputBytes(ib))
+    emd.inputRecords.foreach(ir => builder.addInputRecords(ir))
+    emd.outputBytes.foreach(ob => builder.addOutputBytes(ob))
+    emd.outputRecords.foreach(or => builder.addOutputRecords(or))
+    emd.shuffleRead.foreach(sr => builder.addShuffleRead(sr))
+    emd.shuffleReadRecords.foreach(srr => builder.addShuffleReadRecords(srr))
+    emd.shuffleWrite.foreach(sw => builder.addShuffleWrite(sw))
+    emd.shuffleWriteRecords.foreach(swr => builder.addShuffleWriteRecords(swr))
+    emd.memoryBytesSpilled.foreach(mbs => builder.addMemoryBytesSpilled(mbs))
+    emd.diskBytesSpilled.foreach(dbs => builder.addDiskBytesSpilled(dbs))
+    
builder.setPeakMemoryMetrics(serializeExecutorPeakMetricsDistributions(emd.peakMemoryMetrics))
+    builder.build()
+  }
+
+  private def serializeExecutorPeakMetricsDistributions(
+      epmd: ExecutorPeakMetricsDistributions): 
StoreTypes.ExecutorPeakMetricsDistributions = {
+    val builder = StoreTypes.ExecutorPeakMetricsDistributions.newBuilder()
+    epmd.quantiles.foreach(q => builder.addQuantiles(q))
+    epmd.executorMetrics.foreach(em => builder.addExecutorMetrics(
+      ExecutorMetricsSerializer.serialize(em)))
+    builder.build()
+  }
+
+  override def deserialize(bytes: Array[Byte]): StageDataWrapper = {
+    val binary = StoreTypes.StageDataWrapper.parseFrom(bytes)
+    val info = deserializeStageData(binary.getInfo)
+    new StageDataWrapper(
+      info = info,
+      jobIds = binary.getJobIdsList.asScala.map(_.toInt).toSet,
+      locality = binary.getLocalityMap.asScala.mapValues(_.toLong).toMap
+    )
+  }
+
+  private def deserializeStageData(binary: StoreTypes.StageData): StageData = {
+    val status = StageStatus.valueOf(binary.getStatus.toString)
+    val submissionTime =
+      getOptional(binary.hasSubmissionTime, () => new 
Date(binary.getSubmissionTime))
+    val firstTaskLaunchedTime =
+      getOptional(binary.hasFirstTaskLaunchedTime, () => new 
Date(binary.getFirstTaskLaunchedTime))
+    val completionTime =
+      getOptional(binary.hasCompletionTime, () => new 
Date(binary.getCompletionTime))
+    val failureReason =
+      getOptional(binary.hasFailureReason, () => 
weakIntern(binary.getFailureReason))
+    val description =
+      getOptional(binary.hasDescription, () => 
weakIntern(binary.getDescription))
+    val accumulatorUpdates = 
AccumulableInfoSerializer.deserializeAccumulableInfos(
+      binary.getAccumulatorUpdatesList)
+    val tasks = MapUtils.isEmpty(binary.getTasksMap) match {
+      case true => None
+      case _ => Some(binary.getTasksMap.asScala.map(
+        entry => (entry._1.toLong, deserializeTaskData(entry._2))).toMap)
+    }
+    val executorSummary = MapUtils.isEmpty(binary.getExecutorSummaryMap) match 
{
+      case true => None
+      case _ => Some(binary.getExecutorSummaryMap.asScala.mapValues(
+          
ExecutorStageSummarySerializer.deserializeExecutorStageSummary(_)).toMap
+      )
+    }
+    val speculationSummary =
+      getOptional(binary.hasSpeculationSummary,
+        () => deserializeSpeculationStageSummary(binary.getSpeculationSummary))
+    val peakExecutorMetrics =
+      getOptional(binary.hasPeakExecutorMetrics,
+        () => 
ExecutorMetricsSerializer.deserialize(binary.getPeakExecutorMetrics))
+    val taskMetricsDistributions =
+      getOptional(binary.hasTaskMetricsDistributions,
+        () => 
deserializeTaskMetricDistributions(binary.getTaskMetricsDistributions))
+    val executorMetricsDistributions =
+      getOptional(binary.hasExecutorMetricsDistributions,
+        () => 
deserializeExecutorMetricsDistributions(binary.getExecutorMetricsDistributions))
+    new StageData(
+      status = status,
+      stageId = binary.getStageId.toInt,
+      attemptId = binary.getAttemptId,
+      numTasks = binary.getNumTasks,
+      numActiveTasks = binary.getNumActiveTasks,
+      numCompleteTasks = binary.getNumCompleteTasks,
+      numFailedTasks = binary.getNumFailedTasks,
+      numKilledTasks = binary.getNumKilledTasks,
+      numCompletedIndices = binary.getNumCompletedIndices,
+      submissionTime = submissionTime,
+      firstTaskLaunchedTime = firstTaskLaunchedTime,
+      completionTime = completionTime,
+      failureReason = failureReason,
+      executorDeserializeTime = binary.getExecutorDeserializeTime,
+      executorDeserializeCpuTime = binary.getExecutorDeserializeCpuTime,
+      executorRunTime = binary.getExecutorRunTime,
+      executorCpuTime = binary.getExecutorCpuTime,
+      resultSize = binary.getResultSize,
+      jvmGcTime = binary.getJvmGcTime,
+      resultSerializationTime = binary.getResultSerializationTime,
+      memoryBytesSpilled = binary.getMemoryBytesSpilled,
+      diskBytesSpilled = binary.getDiskBytesSpilled,
+      peakExecutionMemory = binary.getPeakExecutionMemory,
+      inputBytes = binary.getInputBytes,
+      inputRecords = binary.getInputRecords,
+      outputBytes = binary.getOutputBytes,
+      outputRecords = binary.getOutputRecords,
+      shuffleRemoteBlocksFetched = binary.getShuffleRemoteBlocksFetched,
+      shuffleLocalBlocksFetched = binary.getShuffleLocalBlocksFetched,
+      shuffleFetchWaitTime = binary.getShuffleFetchWaitTime,
+      shuffleRemoteBytesRead = binary.getShuffleRemoteBytesRead,
+      shuffleRemoteBytesReadToDisk = binary.getShuffleRemoteBytesReadToDisk,
+      shuffleLocalBytesRead = binary.getShuffleLocalBytesRead,
+      shuffleReadBytes = binary.getShuffleReadBytes,
+      shuffleReadRecords = binary.getShuffleReadRecords,
+      shuffleWriteBytes = binary.getShuffleWriteBytes,
+      shuffleWriteTime = binary.getShuffleWriteTime,
+      shuffleWriteRecords = binary.getShuffleWriteRecords,
+      name = weakIntern(binary.getName),
+      description = description,
+      details = weakIntern(binary.getDetails),
+      schedulingPool = weakIntern(binary.getSchedulingPool),
+      rddIds = binary.getRddIdsList.asScala.map(_.toInt).toSeq,
+      accumulatorUpdates = accumulatorUpdates.toSeq,
+      tasks = tasks,
+      executorSummary = executorSummary,
+      speculationSummary = speculationSummary,
+      killedTasksSummary = 
binary.getKilledTasksSummaryMap.asScala.mapValues(_.toInt).toMap,
+      resourceProfileId = binary.getResourceProfileId,
+      peakExecutorMetrics = peakExecutorMetrics,
+      taskMetricsDistributions = taskMetricsDistributions,
+      executorMetricsDistributions = executorMetricsDistributions
+    )
+  }
+
+  private def deserializeSpeculationStageSummary(
+      binary: StoreTypes.SpeculationStageSummary): SpeculationStageSummary = {
+    new SpeculationStageSummary(
+      binary.getNumTasks,
+      binary.getNumActiveTasks,
+      binary.getNumCompletedTasks,
+      binary.getNumFailedTasks,
+      binary.getNumKilledTasks
+    )
+  }
+
+  private def deserializeTaskMetricDistributions(
+      binary: StoreTypes.TaskMetricDistributions): TaskMetricDistributions = {
+    new TaskMetricDistributions(
+      quantiles = binary.getQuantilesList.asScala.map(_.toDouble).toIndexedSeq,
+      duration = binary.getDurationList.asScala.map(_.toDouble).toIndexedSeq,
+      executorDeserializeTime =
+        
binary.getExecutorDeserializeTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      executorDeserializeCpuTime =
+        
binary.getExecutorDeserializeCpuTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      executorRunTime = 
binary.getExecutorRunTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      executorCpuTime = 
binary.getExecutorCpuTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      resultSize = 
binary.getResultSizeList.asScala.map(_.toDouble).toIndexedSeq,
+      jvmGcTime = binary.getJvmGcTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      resultSerializationTime =
+        
binary.getResultSerializationTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      gettingResultTime = 
binary.getGettingResultTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      schedulerDelay = 
binary.getSchedulerDelayList.asScala.map(_.toDouble).toIndexedSeq,
+      peakExecutionMemory = 
binary.getPeakExecutionMemoryList.asScala.map(_.toDouble).toIndexedSeq,
+      memoryBytesSpilled = 
binary.getMemoryBytesSpilledList.asScala.map(_.toDouble).toIndexedSeq,
+      diskBytesSpilled = 
binary.getDiskBytesSpilledList.asScala.map(_.toDouble).toIndexedSeq,
+      inputMetrics = 
deserializeInputMetricDistributions(binary.getInputMetrics),
+      outputMetrics = 
deserializeOutputMetricDistributions(binary.getOutputMetrics),
+      shuffleReadMetrics = 
deserializeShuffleReadMetricDistributions(binary.getShuffleReadMetrics),
+      shuffleWriteMetrics =
+        
deserializeShuffleWriteMetricDistributions(binary.getShuffleWriteMetrics)
+    )
+  }
+
+  private def deserializeInputMetricDistributions(
+      binary: StoreTypes.InputMetricDistributions): InputMetricDistributions = 
{
+    new InputMetricDistributions(
+      bytesRead = binary.getBytesReadList.asScala.map(_.toDouble).toIndexedSeq,
+      recordsRead = 
binary.getRecordsReadList.asScala.map(_.toDouble).toIndexedSeq
+    )
+  }
+
+  private def deserializeOutputMetricDistributions(
+      binary: StoreTypes.OutputMetricDistributions): OutputMetricDistributions 
= {
+    new OutputMetricDistributions(
+      bytesWritten = 
binary.getBytesWrittenList.asScala.map(_.toDouble).toIndexedSeq,
+      recordsWritten = 
binary.getRecordsWrittenList.asScala.map(_.toDouble).toIndexedSeq
+    )
+  }
+
+  private def deserializeShuffleReadMetricDistributions(
+      binary: StoreTypes.ShuffleReadMetricDistributions): 
ShuffleReadMetricDistributions = {
+    new ShuffleReadMetricDistributions(
+      readBytes = binary.getReadBytesList.asScala.map(_.toDouble).toIndexedSeq,
+      readRecords = 
binary.getReadRecordsList.asScala.map(_.toDouble).toIndexedSeq,
+      remoteBlocksFetched = 
binary.getRemoteBlocksFetchedList.asScala.map(_.toDouble).toIndexedSeq,
+      localBlocksFetched = 
binary.getLocalBlocksFetchedList.asScala.map(_.toDouble).toIndexedSeq,
+      fetchWaitTime = 
binary.getFetchWaitTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      remoteBytesRead = 
binary.getRemoteBytesReadList.asScala.map(_.toDouble).toIndexedSeq,
+      remoteBytesReadToDisk =
+        
binary.getRemoteBytesReadToDiskList.asScala.map(_.toDouble).toIndexedSeq,
+      totalBlocksFetched = 
binary.getTotalBlocksFetchedList.asScala.map(_.toDouble).toIndexedSeq
+    )
+  }
+
+  private def deserializeShuffleWriteMetricDistributions(
+      binary: StoreTypes.ShuffleWriteMetricDistributions): 
ShuffleWriteMetricDistributions = {
+    new ShuffleWriteMetricDistributions(
+      writeBytes = 
binary.getWriteBytesList.asScala.map(_.toDouble).toIndexedSeq,
+      writeRecords = 
binary.getWriteRecordsList.asScala.map(_.toDouble).toIndexedSeq,
+      writeTime = binary.getWriteTimeList.asScala.map(_.toDouble).toIndexedSeq
+    )
+  }
+
+  private def deserializeExecutorMetricsDistributions(
+      binary: StoreTypes.ExecutorMetricsDistributions): 
ExecutorMetricsDistributions = {
+    new ExecutorMetricsDistributions(
+      quantiles = binary.getQuantilesList.asScala.map(_.toDouble).toIndexedSeq,
+      taskTime = binary.getTaskTimeList.asScala.map(_.toDouble).toIndexedSeq,
+      failedTasks = 
binary.getFailedTasksList.asScala.map(_.toDouble).toIndexedSeq,
+      succeededTasks = 
binary.getSucceededTasksList.asScala.map(_.toDouble).toIndexedSeq,
+      killedTasks = 
binary.getKilledTasksList.asScala.map(_.toDouble).toIndexedSeq,
+      inputBytes = 
binary.getInputBytesList.asScala.map(_.toDouble).toIndexedSeq,
+      inputRecords = 
binary.getInputRecordsList.asScala.map(_.toDouble).toIndexedSeq,
+      outputBytes = 
binary.getOutputBytesList.asScala.map(_.toDouble).toIndexedSeq,
+      outputRecords = 
binary.getOutputRecordsList.asScala.map(_.toDouble).toIndexedSeq,
+      shuffleRead = 
binary.getShuffleReadList.asScala.map(_.toDouble).toIndexedSeq,
+      shuffleReadRecords = 
binary.getShuffleReadRecordsList.asScala.map(_.toDouble).toIndexedSeq,
+      shuffleWrite = 
binary.getShuffleWriteList.asScala.map(_.toDouble).toIndexedSeq,
+      shuffleWriteRecords = 
binary.getShuffleWriteRecordsList.asScala.map(_.toDouble).toIndexedSeq,
+      memoryBytesSpilled = 
binary.getMemoryBytesSpilledList.asScala.map(_.toDouble).toIndexedSeq,
+      diskBytesSpilled = 
binary.getDiskBytesSpilledList.asScala.map(_.toDouble).toIndexedSeq,
+      peakMemoryMetrics = 
deserializeExecutorPeakMetricsDistributions(binary.getPeakMemoryMetrics)
+    )
+  }
+
+  private def deserializeExecutorPeakMetricsDistributions(
+      binary: StoreTypes.ExecutorPeakMetricsDistributions): 
ExecutorPeakMetricsDistributions = {
+    new ExecutorPeakMetricsDistributions(
+      quantiles = binary.getQuantilesList.asScala.map(_.toDouble).toIndexedSeq,
+      executorMetrics = binary.getExecutorMetricsList.asScala.map(
+        ExecutorMetricsSerializer.deserialize(_)).toIndexedSeq

Review Comment:
   Done



##########
core/src/main/scala/org/apache/spark/status/protobuf/StageDataWrapperSerializer.scala:
##########
@@ -0,0 +1,627 @@
+/*
+ * 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.protobuf
+
+import java.util.Date
+
+import collection.JavaConverters._
+import org.apache.commons.collections4.MapUtils
+
+import org.apache.spark.status.StageDataWrapper
+import org.apache.spark.status.api.v1.{ExecutorMetricsDistributions, 
ExecutorPeakMetricsDistributions, InputMetricDistributions, InputMetrics, 
OutputMetricDistributions, OutputMetrics, ShuffleReadMetricDistributions, 
ShuffleReadMetrics, ShuffleWriteMetricDistributions, ShuffleWriteMetrics, 
SpeculationStageSummary, StageData, StageStatus, TaskData, 
TaskMetricDistributions, TaskMetrics}
+import org.apache.spark.status.protobuf.Utils.getOptional
+import org.apache.spark.util.Utils.weakIntern
+
+class StageDataWrapperSerializer extends ProtobufSerDe {
+
+  override val supportClass: Class[_] = classOf[StageDataWrapper]
+
+  override def serialize(input: Any): Array[Byte] =
+    serialize(input.asInstanceOf[StageDataWrapper])
+
+  private def serialize(s: StageDataWrapper): Array[Byte] = {
+    val builder = StoreTypes.StageDataWrapper.newBuilder()
+    builder.setInfo(serializeStageData(s.info))
+    s.jobIds.foreach(id => builder.addJobIds(id.toLong))
+    s.locality.foreach { entry =>
+      builder.putLocality(entry._1, entry._2)
+    }
+    builder.build().toByteArray
+  }
+
+  private def serializeStageData(stageData: StageData): StoreTypes.StageData = 
{
+    val stageDataBuilder = StoreTypes.StageData.newBuilder()
+    stageDataBuilder
+      .setStatus(serializeStageStatus(stageData.status))
+      .setStageId(stageData.stageId.toLong)
+      .setAttemptId(stageData.attemptId)
+      .setNumTasks(stageData.numTasks)
+      .setNumActiveTasks(stageData.numActiveTasks)
+      .setNumCompleteTasks(stageData.numCompleteTasks)
+      .setNumFailedTasks(stageData.numFailedTasks)
+      .setNumKilledTasks(stageData.numKilledTasks)
+      .setNumCompletedIndices(stageData.numCompletedIndices)
+      .setExecutorDeserializeTime(stageData.executorDeserializeTime)
+      .setExecutorDeserializeCpuTime(stageData.executorDeserializeCpuTime)
+      .setExecutorRunTime(stageData.executorRunTime)
+      .setExecutorCpuTime(stageData.executorCpuTime)
+      .setResultSize(stageData.resultSize)
+      .setJvmGcTime(stageData.jvmGcTime)
+      .setResultSerializationTime(stageData.resultSerializationTime)
+      .setMemoryBytesSpilled(stageData.memoryBytesSpilled)
+      .setDiskBytesSpilled(stageData.diskBytesSpilled)
+      .setPeakExecutionMemory(stageData.peakExecutionMemory)
+      .setInputBytes(stageData.inputBytes)
+      .setInputRecords(stageData.inputRecords)
+      .setOutputBytes(stageData.outputBytes)
+      .setOutputRecords(stageData.outputRecords)
+      .setShuffleRemoteBlocksFetched(stageData.shuffleRemoteBlocksFetched)
+      .setShuffleLocalBlocksFetched(stageData.shuffleLocalBlocksFetched)
+      .setShuffleFetchWaitTime(stageData.shuffleFetchWaitTime)
+      .setShuffleRemoteBytesRead(stageData.shuffleRemoteBytesRead)
+      .setShuffleRemoteBytesReadToDisk(stageData.shuffleRemoteBytesReadToDisk)
+      .setShuffleLocalBytesRead(stageData.shuffleLocalBytesRead)
+      .setShuffleReadBytes(stageData.shuffleReadBytes)
+      .setShuffleReadRecords(stageData.shuffleReadRecords)
+      .setShuffleWriteBytes(stageData.shuffleWriteBytes)
+      .setShuffleWriteTime(stageData.shuffleWriteTime)
+      .setShuffleWriteRecords(stageData.shuffleWriteRecords)
+      .setName(stageData.name)
+      .setDetails(stageData.details)
+      .setSchedulingPool(stageData.schedulingPool)
+      .setResourceProfileId(stageData.resourceProfileId)
+    stageData.submissionTime.foreach { d =>
+      stageDataBuilder.setSubmissionTime(d.getTime)
+    }
+    stageData.firstTaskLaunchedTime.foreach { d =>
+      stageDataBuilder.setFirstTaskLaunchedTime(d.getTime)
+    }
+    stageData.completionTime.foreach { d =>
+      stageDataBuilder.setCompletionTime(d.getTime)
+    }
+    stageData.failureReason.foreach { fr =>
+      stageDataBuilder.setFailureReason(fr)
+    }
+    stageData.description.foreach { d =>
+      stageDataBuilder.setDescription(d)
+    }
+    stageData.rddIds.foreach(id => stageDataBuilder.addRddIds(id.toLong))
+    stageData.accumulatorUpdates.foreach { update =>
+      stageDataBuilder.addAccumulatorUpdates(
+        AccumulableInfoSerializer.serializeAccumulableInfo(update))
+    }
+    stageData.tasks.foreach { t =>
+      t.foreach { entry =>
+        stageDataBuilder.putTasks(entry._1, serializeTaskData(entry._2))
+      }
+    }
+    stageData.executorSummary.foreach { es =>
+      es.foreach { entry =>
+        stageDataBuilder.putExecutorSummary(entry._1,
+          
ExecutorStageSummarySerializer.serializeExecutorStageSummary(entry._2))
+      }
+    }
+    stageData.speculationSummary.foreach { ss =>
+      
stageDataBuilder.setSpeculationSummary(serializeSpeculationStageSummary(ss))
+    }
+    stageData.killedTasksSummary.foreach { entry =>
+      stageDataBuilder.putKilledTasksSummary(entry._1, entry._2)
+    }
+    stageData.peakExecutorMetrics.foreach { pem =>
+      
stageDataBuilder.setPeakExecutorMetrics(ExecutorMetricsSerializer.serialize(pem))
+    }
+    stageData.taskMetricsDistributions.foreach { tmd =>
+      
stageDataBuilder.setTaskMetricsDistributions(serializeTaskMetricDistributions(tmd))
+    }
+    stageData.executorMetricsDistributions.foreach { emd =>
+      
stageDataBuilder.setExecutorMetricsDistributions(serializeExecutorMetricsDistributions(emd))
+    }
+    stageDataBuilder.build()
+  }
+
+  private def serializeStageStatus(s: StageStatus): 
StoreTypes.StageData.StageStatus = {
+    StoreTypes.StageData.StageStatus.valueOf(s.toString)
+  }
+
+  private def serializeTaskData(t: TaskData): StoreTypes.TaskData = {
+    val taskDataBuilder = StoreTypes.TaskData.newBuilder()
+    taskDataBuilder
+      .setTaskId(t.taskId)
+      .setIndex(t.index)
+      .setAttempt(t.attempt)
+      .setPartitionId(t.partitionId)
+      .setLaunchTime(t.launchTime.getTime)
+      .setExecutorId(t.executorId)
+      .setHost(t.host)
+      .setStatus(t.status)
+      .setTaskLocality(t.taskLocality)
+      .setSpeculative(t.speculative)
+      .setSchedulerDelay(t.schedulerDelay)
+      .setGettingResultTime(t.gettingResultTime)
+    t.resultFetchStart.foreach { rfs =>
+      taskDataBuilder.setResultFetchStart(rfs.getTime)
+    }
+    t.duration.foreach { d =>
+      taskDataBuilder.setDuration(d)
+    }
+    t.accumulatorUpdates.foreach { update =>
+      taskDataBuilder.addAccumulatorUpdates(
+        AccumulableInfoSerializer.serializeAccumulableInfo(update))
+    }
+    t.errorMessage.foreach { em =>
+      taskDataBuilder.setErrorMessage(em)
+    }
+    t.taskMetrics.foreach { tm =>
+      taskDataBuilder.setTaskMetrics(serializeTaskMetrics(tm))
+    }
+    t.executorLogs.foreach { entry =>
+      taskDataBuilder.putExecutorLogs(entry._1, entry._2)
+    }
+    taskDataBuilder.build()
+  }
+
+  private def serializeTaskMetrics(tm: TaskMetrics): StoreTypes.TaskMetrics = {
+    val taskMetricsBuilder = StoreTypes.TaskMetrics.newBuilder()
+    taskMetricsBuilder
+      .setExecutorDeserializeTime(tm.executorDeserializeTime)
+      .setExecutorDeserializeCpuTime(tm.executorDeserializeCpuTime)
+      .setExecutorRunTime(tm.executorRunTime)
+      .setExecutorCpuTime(tm.executorCpuTime)
+      .setResultSize(tm.resultSize)
+      .setJvmGcTime(tm.jvmGcTime)
+      .setResultSerializationTime(tm.resultSerializationTime)
+      .setMemoryBytesSpilled(tm.memoryBytesSpilled)
+      .setDiskBytesSpilled(tm.diskBytesSpilled)
+      .setPeakExecutionMemory(tm.peakExecutionMemory)
+      .setInputMetrics(serializeInputMetrics(tm.inputMetrics))
+      .setOutputMetrics(serializeOutputMetrics(tm.outputMetrics))
+      
.setShuffleReadMetrics(serializeShuffleReadMetrics(tm.shuffleReadMetrics))
+      
.setShuffleWriteMetrics(serializeShuffleWriteMetrics(tm.shuffleWriteMetrics))
+    taskMetricsBuilder.build()
+  }
+
+  private def serializeInputMetrics(im: InputMetrics): StoreTypes.InputMetrics 
= {
+    StoreTypes.InputMetrics.newBuilder()
+      .setBytesRead(im.bytesRead)
+      .setRecordsRead(im.recordsRead)
+      .build()
+  }
+
+  private def serializeOutputMetrics(om: OutputMetrics): 
StoreTypes.OutputMetrics = {
+    StoreTypes.OutputMetrics.newBuilder()
+      .setBytesWritten(om.bytesWritten)
+      .setRecordsWritten(om.recordsWritten)
+      .build()
+  }
+
+  private def serializeShuffleReadMetrics(
+      srm: ShuffleReadMetrics): StoreTypes.ShuffleReadMetrics = {
+    StoreTypes.ShuffleReadMetrics.newBuilder()
+      .setRemoteBlocksFetched(srm.remoteBlocksFetched)
+      .setLocalBlocksFetched(srm.localBlocksFetched)
+      .setFetchWaitTime(srm.fetchWaitTime)
+      .setRemoteBytesRead(srm.remoteBytesRead)
+      .setRemoteBytesReadToDisk(srm.remoteBytesReadToDisk)
+      .setLocalBytesRead(srm.localBytesRead)
+      .setRecordsRead(srm.recordsRead)
+      .build()
+  }
+
+  private def serializeShuffleWriteMetrics(
+      swm: ShuffleWriteMetrics): StoreTypes.ShuffleWriteMetrics = {
+    StoreTypes.ShuffleWriteMetrics.newBuilder()
+      .setBytesWritten(swm.bytesWritten)
+      .setWriteTime(swm.writeTime)
+      .setRecordsWritten(swm.recordsWritten)
+      .build()
+  }
+
+  private def serializeSpeculationStageSummary(
+      sss: SpeculationStageSummary): StoreTypes.SpeculationStageSummary = {
+    StoreTypes.SpeculationStageSummary.newBuilder()
+      .setNumTasks(sss.numTasks)
+      .setNumActiveTasks(sss.numActiveTasks)
+      .setNumCompletedTasks(sss.numCompletedTasks)
+      .setNumFailedTasks(sss.numFailedTasks)
+      .setNumKilledTasks(sss.numKilledTasks)
+      .build()
+  }
+
+  private def serializeTaskMetricDistributions(
+      tmd: TaskMetricDistributions): StoreTypes.TaskMetricDistributions = {
+    val builder = StoreTypes.TaskMetricDistributions.newBuilder()
+    tmd.quantiles.foreach(q => builder.addQuantiles(q))
+    tmd.duration.foreach(d => builder.addDuration(d))
+    tmd.executorDeserializeTime.foreach(edt => 
builder.addExecutorDeserializeTime(edt))
+    tmd.executorDeserializeCpuTime.foreach(edct => 
builder.addExecutorDeserializeCpuTime(edct))
+    tmd.executorRunTime.foreach(ert => builder.addExecutorRunTime(ert))
+    tmd.executorCpuTime.foreach(ect => builder.addExecutorCpuTime(ect))
+    tmd.resultSize.foreach(rs => builder.addResultSize(rs))
+    tmd.jvmGcTime.foreach(jgt => builder.addJvmGcTime(jgt))
+    tmd.resultSerializationTime.foreach(rst => 
builder.addResultSerializationTime(rst))
+    tmd.gettingResultTime.foreach(grt => builder.addGettingResultTime(grt))
+    tmd.schedulerDelay.foreach(sd => builder.addSchedulerDelay(sd))
+    tmd.peakExecutionMemory.foreach(pem => builder.addPeakExecutionMemory(pem))
+    tmd.memoryBytesSpilled.foreach(mbs => builder.addMemoryBytesSpilled(mbs))
+    tmd.diskBytesSpilled.foreach(dbs => builder.addDiskBytesSpilled(dbs))
+    builder
+      .setInputMetrics(serializeInputMetricDistributions(tmd.inputMetrics))
+      .setOutputMetrics(serializeOutputMetricDistributions(tmd.outputMetrics))
+      
.setShuffleReadMetrics(serializeShuffleReadMetricDistributions(tmd.shuffleReadMetrics))
+      
.setShuffleWriteMetrics(serializeShuffleWriteMetricDistributions(tmd.shuffleWriteMetrics))
+      .build()
+  }
+
+  private def serializeInputMetricDistributions(
+      imd: InputMetricDistributions): StoreTypes.InputMetricDistributions = {
+    val builder = StoreTypes.InputMetricDistributions.newBuilder()
+    imd.bytesRead.foreach(br => builder.addBytesRead(br))
+    imd.recordsRead.foreach(rr => builder.addRecordsRead(rr))
+    builder.build()
+  }
+
+  private def serializeOutputMetricDistributions(
+      omd: OutputMetricDistributions): StoreTypes.OutputMetricDistributions = {
+    val builder = StoreTypes.OutputMetricDistributions.newBuilder()
+    omd.bytesWritten.foreach(bw => builder.addBytesWritten(bw))
+    omd.recordsWritten.foreach(rw => builder.addRecordsWritten(rw))
+    builder.build()
+  }
+
+  private def serializeShuffleReadMetricDistributions(
+      srmd: ShuffleReadMetricDistributions): 
StoreTypes.ShuffleReadMetricDistributions = {
+    val builder = StoreTypes.ShuffleReadMetricDistributions.newBuilder()
+    srmd.readBytes.foreach(rb => builder.addReadBytes(rb))
+    srmd.readRecords.foreach(rr => builder.addReadRecords(rr))
+    srmd.remoteBlocksFetched.foreach(rbf => 
builder.addRemoteBlocksFetched(rbf))
+    srmd.localBlocksFetched.foreach(lbf => builder.addLocalBlocksFetched(lbf))
+    srmd.fetchWaitTime.foreach(fwt => builder.addFetchWaitTime(fwt))
+    srmd.remoteBytesRead.foreach(rbr => builder.addRemoteBytesRead(rbr))
+    srmd.remoteBytesReadToDisk.foreach(rbrtd => 
builder.addRemoteBytesReadToDisk(rbrtd))
+    srmd.totalBlocksFetched.foreach(tbf => builder.addTotalBlocksFetched(tbf))
+    builder.build()
+  }
+
+  private def serializeShuffleWriteMetricDistributions(
+      swmd: ShuffleWriteMetricDistributions): 
StoreTypes.ShuffleWriteMetricDistributions = {
+    val builder = StoreTypes.ShuffleWriteMetricDistributions.newBuilder()
+    swmd.writeBytes.foreach(wb => builder.addWriteBytes(wb))
+    swmd.writeRecords.foreach(wr => builder.addWriteRecords(wr))
+    swmd.writeTime.foreach(wt => builder.addWriteTime(wt))
+    builder.build()
+  }
+
+  private def serializeExecutorMetricsDistributions(
+      emd: ExecutorMetricsDistributions): 
StoreTypes.ExecutorMetricsDistributions = {
+    val builder = StoreTypes.ExecutorMetricsDistributions.newBuilder()
+    emd.quantiles.foreach(q => builder.addQuantiles(q))
+    emd.taskTime.foreach(tt => builder.addTaskTime(tt))
+    emd.failedTasks.foreach(ft => builder.addFailedTasks(ft))
+    emd.succeededTasks.foreach(st => builder.addSucceededTasks(st))
+    emd.killedTasks.foreach(kt => builder.addKilledTasks(kt))
+    emd.inputBytes.foreach(ib => builder.addInputBytes(ib))
+    emd.inputRecords.foreach(ir => builder.addInputRecords(ir))
+    emd.outputBytes.foreach(ob => builder.addOutputBytes(ob))
+    emd.outputRecords.foreach(or => builder.addOutputRecords(or))
+    emd.shuffleRead.foreach(sr => builder.addShuffleRead(sr))
+    emd.shuffleReadRecords.foreach(srr => builder.addShuffleReadRecords(srr))
+    emd.shuffleWrite.foreach(sw => builder.addShuffleWrite(sw))
+    emd.shuffleWriteRecords.foreach(swr => builder.addShuffleWriteRecords(swr))
+    emd.memoryBytesSpilled.foreach(mbs => builder.addMemoryBytesSpilled(mbs))
+    emd.diskBytesSpilled.foreach(dbs => builder.addDiskBytesSpilled(dbs))
+    
builder.setPeakMemoryMetrics(serializeExecutorPeakMetricsDistributions(emd.peakMemoryMetrics))
+    builder.build()
+  }
+
+  private def serializeExecutorPeakMetricsDistributions(
+      epmd: ExecutorPeakMetricsDistributions): 
StoreTypes.ExecutorPeakMetricsDistributions = {
+    val builder = StoreTypes.ExecutorPeakMetricsDistributions.newBuilder()
+    epmd.quantiles.foreach(q => builder.addQuantiles(q))
+    epmd.executorMetrics.foreach(em => builder.addExecutorMetrics(
+      ExecutorMetricsSerializer.serialize(em)))
+    builder.build()
+  }
+
+  override def deserialize(bytes: Array[Byte]): StageDataWrapper = {
+    val binary = StoreTypes.StageDataWrapper.parseFrom(bytes)
+    val info = deserializeStageData(binary.getInfo)
+    new StageDataWrapper(
+      info = info,
+      jobIds = binary.getJobIdsList.asScala.map(_.toInt).toSet,
+      locality = binary.getLocalityMap.asScala.mapValues(_.toLong).toMap
+    )
+  }
+
+  private def deserializeStageData(binary: StoreTypes.StageData): StageData = {
+    val status = StageStatus.valueOf(binary.getStatus.toString)
+    val submissionTime =
+      getOptional(binary.hasSubmissionTime, () => new 
Date(binary.getSubmissionTime))
+    val firstTaskLaunchedTime =
+      getOptional(binary.hasFirstTaskLaunchedTime, () => new 
Date(binary.getFirstTaskLaunchedTime))
+    val completionTime =
+      getOptional(binary.hasCompletionTime, () => new 
Date(binary.getCompletionTime))
+    val failureReason =
+      getOptional(binary.hasFailureReason, () => 
weakIntern(binary.getFailureReason))
+    val description =
+      getOptional(binary.hasDescription, () => 
weakIntern(binary.getDescription))
+    val accumulatorUpdates = 
AccumulableInfoSerializer.deserializeAccumulableInfos(
+      binary.getAccumulatorUpdatesList)
+    val tasks = MapUtils.isEmpty(binary.getTasksMap) match {
+      case true => None
+      case _ => Some(binary.getTasksMap.asScala.map(
+        entry => (entry._1.toLong, deserializeTaskData(entry._2))).toMap)
+    }
+    val executorSummary = MapUtils.isEmpty(binary.getExecutorSummaryMap) match 
{

Review Comment:
   Done



##########
core/src/main/scala/org/apache/spark/status/protobuf/StageDataWrapperSerializer.scala:
##########
@@ -0,0 +1,627 @@
+/*
+ * 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.protobuf
+
+import java.util.Date
+
+import collection.JavaConverters._
+import org.apache.commons.collections4.MapUtils
+
+import org.apache.spark.status.StageDataWrapper
+import org.apache.spark.status.api.v1.{ExecutorMetricsDistributions, 
ExecutorPeakMetricsDistributions, InputMetricDistributions, InputMetrics, 
OutputMetricDistributions, OutputMetrics, ShuffleReadMetricDistributions, 
ShuffleReadMetrics, ShuffleWriteMetricDistributions, ShuffleWriteMetrics, 
SpeculationStageSummary, StageData, StageStatus, TaskData, 
TaskMetricDistributions, TaskMetrics}
+import org.apache.spark.status.protobuf.Utils.getOptional
+import org.apache.spark.util.Utils.weakIntern
+
+class StageDataWrapperSerializer extends ProtobufSerDe {
+
+  override val supportClass: Class[_] = classOf[StageDataWrapper]
+
+  override def serialize(input: Any): Array[Byte] =
+    serialize(input.asInstanceOf[StageDataWrapper])
+
+  private def serialize(s: StageDataWrapper): Array[Byte] = {
+    val builder = StoreTypes.StageDataWrapper.newBuilder()
+    builder.setInfo(serializeStageData(s.info))
+    s.jobIds.foreach(id => builder.addJobIds(id.toLong))
+    s.locality.foreach { entry =>
+      builder.putLocality(entry._1, entry._2)
+    }
+    builder.build().toByteArray
+  }
+
+  private def serializeStageData(stageData: StageData): StoreTypes.StageData = 
{
+    val stageDataBuilder = StoreTypes.StageData.newBuilder()
+    stageDataBuilder
+      .setStatus(serializeStageStatus(stageData.status))
+      .setStageId(stageData.stageId.toLong)
+      .setAttemptId(stageData.attemptId)
+      .setNumTasks(stageData.numTasks)
+      .setNumActiveTasks(stageData.numActiveTasks)
+      .setNumCompleteTasks(stageData.numCompleteTasks)
+      .setNumFailedTasks(stageData.numFailedTasks)
+      .setNumKilledTasks(stageData.numKilledTasks)
+      .setNumCompletedIndices(stageData.numCompletedIndices)
+      .setExecutorDeserializeTime(stageData.executorDeserializeTime)
+      .setExecutorDeserializeCpuTime(stageData.executorDeserializeCpuTime)
+      .setExecutorRunTime(stageData.executorRunTime)
+      .setExecutorCpuTime(stageData.executorCpuTime)
+      .setResultSize(stageData.resultSize)
+      .setJvmGcTime(stageData.jvmGcTime)
+      .setResultSerializationTime(stageData.resultSerializationTime)
+      .setMemoryBytesSpilled(stageData.memoryBytesSpilled)
+      .setDiskBytesSpilled(stageData.diskBytesSpilled)
+      .setPeakExecutionMemory(stageData.peakExecutionMemory)
+      .setInputBytes(stageData.inputBytes)
+      .setInputRecords(stageData.inputRecords)
+      .setOutputBytes(stageData.outputBytes)
+      .setOutputRecords(stageData.outputRecords)
+      .setShuffleRemoteBlocksFetched(stageData.shuffleRemoteBlocksFetched)
+      .setShuffleLocalBlocksFetched(stageData.shuffleLocalBlocksFetched)
+      .setShuffleFetchWaitTime(stageData.shuffleFetchWaitTime)
+      .setShuffleRemoteBytesRead(stageData.shuffleRemoteBytesRead)
+      .setShuffleRemoteBytesReadToDisk(stageData.shuffleRemoteBytesReadToDisk)
+      .setShuffleLocalBytesRead(stageData.shuffleLocalBytesRead)
+      .setShuffleReadBytes(stageData.shuffleReadBytes)
+      .setShuffleReadRecords(stageData.shuffleReadRecords)
+      .setShuffleWriteBytes(stageData.shuffleWriteBytes)
+      .setShuffleWriteTime(stageData.shuffleWriteTime)
+      .setShuffleWriteRecords(stageData.shuffleWriteRecords)
+      .setName(stageData.name)
+      .setDetails(stageData.details)
+      .setSchedulingPool(stageData.schedulingPool)
+      .setResourceProfileId(stageData.resourceProfileId)
+    stageData.submissionTime.foreach { d =>
+      stageDataBuilder.setSubmissionTime(d.getTime)
+    }
+    stageData.firstTaskLaunchedTime.foreach { d =>
+      stageDataBuilder.setFirstTaskLaunchedTime(d.getTime)
+    }
+    stageData.completionTime.foreach { d =>
+      stageDataBuilder.setCompletionTime(d.getTime)
+    }
+    stageData.failureReason.foreach { fr =>
+      stageDataBuilder.setFailureReason(fr)
+    }
+    stageData.description.foreach { d =>
+      stageDataBuilder.setDescription(d)
+    }
+    stageData.rddIds.foreach(id => stageDataBuilder.addRddIds(id.toLong))
+    stageData.accumulatorUpdates.foreach { update =>
+      stageDataBuilder.addAccumulatorUpdates(
+        AccumulableInfoSerializer.serializeAccumulableInfo(update))
+    }
+    stageData.tasks.foreach { t =>
+      t.foreach { entry =>
+        stageDataBuilder.putTasks(entry._1, serializeTaskData(entry._2))
+      }
+    }
+    stageData.executorSummary.foreach { es =>
+      es.foreach { entry =>
+        stageDataBuilder.putExecutorSummary(entry._1,
+          
ExecutorStageSummarySerializer.serializeExecutorStageSummary(entry._2))
+      }
+    }
+    stageData.speculationSummary.foreach { ss =>
+      
stageDataBuilder.setSpeculationSummary(serializeSpeculationStageSummary(ss))
+    }
+    stageData.killedTasksSummary.foreach { entry =>
+      stageDataBuilder.putKilledTasksSummary(entry._1, entry._2)
+    }
+    stageData.peakExecutorMetrics.foreach { pem =>
+      
stageDataBuilder.setPeakExecutorMetrics(ExecutorMetricsSerializer.serialize(pem))
+    }
+    stageData.taskMetricsDistributions.foreach { tmd =>
+      
stageDataBuilder.setTaskMetricsDistributions(serializeTaskMetricDistributions(tmd))
+    }
+    stageData.executorMetricsDistributions.foreach { emd =>
+      
stageDataBuilder.setExecutorMetricsDistributions(serializeExecutorMetricsDistributions(emd))
+    }
+    stageDataBuilder.build()
+  }
+
+  private def serializeStageStatus(s: StageStatus): 
StoreTypes.StageData.StageStatus = {
+    StoreTypes.StageData.StageStatus.valueOf(s.toString)
+  }
+
+  private def serializeTaskData(t: TaskData): StoreTypes.TaskData = {
+    val taskDataBuilder = StoreTypes.TaskData.newBuilder()
+    taskDataBuilder
+      .setTaskId(t.taskId)
+      .setIndex(t.index)
+      .setAttempt(t.attempt)
+      .setPartitionId(t.partitionId)
+      .setLaunchTime(t.launchTime.getTime)
+      .setExecutorId(t.executorId)
+      .setHost(t.host)
+      .setStatus(t.status)
+      .setTaskLocality(t.taskLocality)
+      .setSpeculative(t.speculative)
+      .setSchedulerDelay(t.schedulerDelay)
+      .setGettingResultTime(t.gettingResultTime)
+    t.resultFetchStart.foreach { rfs =>
+      taskDataBuilder.setResultFetchStart(rfs.getTime)
+    }
+    t.duration.foreach { d =>
+      taskDataBuilder.setDuration(d)
+    }
+    t.accumulatorUpdates.foreach { update =>
+      taskDataBuilder.addAccumulatorUpdates(
+        AccumulableInfoSerializer.serializeAccumulableInfo(update))
+    }
+    t.errorMessage.foreach { em =>
+      taskDataBuilder.setErrorMessage(em)
+    }
+    t.taskMetrics.foreach { tm =>
+      taskDataBuilder.setTaskMetrics(serializeTaskMetrics(tm))
+    }
+    t.executorLogs.foreach { entry =>
+      taskDataBuilder.putExecutorLogs(entry._1, entry._2)
+    }
+    taskDataBuilder.build()
+  }
+
+  private def serializeTaskMetrics(tm: TaskMetrics): StoreTypes.TaskMetrics = {
+    val taskMetricsBuilder = StoreTypes.TaskMetrics.newBuilder()
+    taskMetricsBuilder
+      .setExecutorDeserializeTime(tm.executorDeserializeTime)
+      .setExecutorDeserializeCpuTime(tm.executorDeserializeCpuTime)
+      .setExecutorRunTime(tm.executorRunTime)
+      .setExecutorCpuTime(tm.executorCpuTime)
+      .setResultSize(tm.resultSize)
+      .setJvmGcTime(tm.jvmGcTime)
+      .setResultSerializationTime(tm.resultSerializationTime)
+      .setMemoryBytesSpilled(tm.memoryBytesSpilled)
+      .setDiskBytesSpilled(tm.diskBytesSpilled)
+      .setPeakExecutionMemory(tm.peakExecutionMemory)
+      .setInputMetrics(serializeInputMetrics(tm.inputMetrics))
+      .setOutputMetrics(serializeOutputMetrics(tm.outputMetrics))
+      
.setShuffleReadMetrics(serializeShuffleReadMetrics(tm.shuffleReadMetrics))
+      
.setShuffleWriteMetrics(serializeShuffleWriteMetrics(tm.shuffleWriteMetrics))
+    taskMetricsBuilder.build()
+  }
+
+  private def serializeInputMetrics(im: InputMetrics): StoreTypes.InputMetrics 
= {
+    StoreTypes.InputMetrics.newBuilder()
+      .setBytesRead(im.bytesRead)
+      .setRecordsRead(im.recordsRead)
+      .build()
+  }
+
+  private def serializeOutputMetrics(om: OutputMetrics): 
StoreTypes.OutputMetrics = {
+    StoreTypes.OutputMetrics.newBuilder()
+      .setBytesWritten(om.bytesWritten)
+      .setRecordsWritten(om.recordsWritten)
+      .build()
+  }
+
+  private def serializeShuffleReadMetrics(
+      srm: ShuffleReadMetrics): StoreTypes.ShuffleReadMetrics = {
+    StoreTypes.ShuffleReadMetrics.newBuilder()
+      .setRemoteBlocksFetched(srm.remoteBlocksFetched)
+      .setLocalBlocksFetched(srm.localBlocksFetched)
+      .setFetchWaitTime(srm.fetchWaitTime)
+      .setRemoteBytesRead(srm.remoteBytesRead)
+      .setRemoteBytesReadToDisk(srm.remoteBytesReadToDisk)
+      .setLocalBytesRead(srm.localBytesRead)
+      .setRecordsRead(srm.recordsRead)
+      .build()
+  }
+
+  private def serializeShuffleWriteMetrics(
+      swm: ShuffleWriteMetrics): StoreTypes.ShuffleWriteMetrics = {
+    StoreTypes.ShuffleWriteMetrics.newBuilder()
+      .setBytesWritten(swm.bytesWritten)
+      .setWriteTime(swm.writeTime)
+      .setRecordsWritten(swm.recordsWritten)
+      .build()
+  }
+
+  private def serializeSpeculationStageSummary(
+      sss: SpeculationStageSummary): StoreTypes.SpeculationStageSummary = {
+    StoreTypes.SpeculationStageSummary.newBuilder()
+      .setNumTasks(sss.numTasks)
+      .setNumActiveTasks(sss.numActiveTasks)
+      .setNumCompletedTasks(sss.numCompletedTasks)
+      .setNumFailedTasks(sss.numFailedTasks)
+      .setNumKilledTasks(sss.numKilledTasks)
+      .build()
+  }
+
+  private def serializeTaskMetricDistributions(
+      tmd: TaskMetricDistributions): StoreTypes.TaskMetricDistributions = {
+    val builder = StoreTypes.TaskMetricDistributions.newBuilder()
+    tmd.quantiles.foreach(q => builder.addQuantiles(q))
+    tmd.duration.foreach(d => builder.addDuration(d))
+    tmd.executorDeserializeTime.foreach(edt => 
builder.addExecutorDeserializeTime(edt))
+    tmd.executorDeserializeCpuTime.foreach(edct => 
builder.addExecutorDeserializeCpuTime(edct))
+    tmd.executorRunTime.foreach(ert => builder.addExecutorRunTime(ert))
+    tmd.executorCpuTime.foreach(ect => builder.addExecutorCpuTime(ect))
+    tmd.resultSize.foreach(rs => builder.addResultSize(rs))
+    tmd.jvmGcTime.foreach(jgt => builder.addJvmGcTime(jgt))
+    tmd.resultSerializationTime.foreach(rst => 
builder.addResultSerializationTime(rst))
+    tmd.gettingResultTime.foreach(grt => builder.addGettingResultTime(grt))
+    tmd.schedulerDelay.foreach(sd => builder.addSchedulerDelay(sd))
+    tmd.peakExecutionMemory.foreach(pem => builder.addPeakExecutionMemory(pem))
+    tmd.memoryBytesSpilled.foreach(mbs => builder.addMemoryBytesSpilled(mbs))
+    tmd.diskBytesSpilled.foreach(dbs => builder.addDiskBytesSpilled(dbs))
+    builder
+      .setInputMetrics(serializeInputMetricDistributions(tmd.inputMetrics))
+      .setOutputMetrics(serializeOutputMetricDistributions(tmd.outputMetrics))
+      
.setShuffleReadMetrics(serializeShuffleReadMetricDistributions(tmd.shuffleReadMetrics))
+      
.setShuffleWriteMetrics(serializeShuffleWriteMetricDistributions(tmd.shuffleWriteMetrics))
+      .build()
+  }
+
+  private def serializeInputMetricDistributions(
+      imd: InputMetricDistributions): StoreTypes.InputMetricDistributions = {
+    val builder = StoreTypes.InputMetricDistributions.newBuilder()
+    imd.bytesRead.foreach(br => builder.addBytesRead(br))
+    imd.recordsRead.foreach(rr => builder.addRecordsRead(rr))
+    builder.build()
+  }
+
+  private def serializeOutputMetricDistributions(
+      omd: OutputMetricDistributions): StoreTypes.OutputMetricDistributions = {
+    val builder = StoreTypes.OutputMetricDistributions.newBuilder()
+    omd.bytesWritten.foreach(bw => builder.addBytesWritten(bw))
+    omd.recordsWritten.foreach(rw => builder.addRecordsWritten(rw))
+    builder.build()
+  }
+
+  private def serializeShuffleReadMetricDistributions(
+      srmd: ShuffleReadMetricDistributions): 
StoreTypes.ShuffleReadMetricDistributions = {
+    val builder = StoreTypes.ShuffleReadMetricDistributions.newBuilder()
+    srmd.readBytes.foreach(rb => builder.addReadBytes(rb))
+    srmd.readRecords.foreach(rr => builder.addReadRecords(rr))
+    srmd.remoteBlocksFetched.foreach(rbf => 
builder.addRemoteBlocksFetched(rbf))
+    srmd.localBlocksFetched.foreach(lbf => builder.addLocalBlocksFetched(lbf))
+    srmd.fetchWaitTime.foreach(fwt => builder.addFetchWaitTime(fwt))
+    srmd.remoteBytesRead.foreach(rbr => builder.addRemoteBytesRead(rbr))
+    srmd.remoteBytesReadToDisk.foreach(rbrtd => 
builder.addRemoteBytesReadToDisk(rbrtd))
+    srmd.totalBlocksFetched.foreach(tbf => builder.addTotalBlocksFetched(tbf))
+    builder.build()
+  }
+
+  private def serializeShuffleWriteMetricDistributions(
+      swmd: ShuffleWriteMetricDistributions): 
StoreTypes.ShuffleWriteMetricDistributions = {
+    val builder = StoreTypes.ShuffleWriteMetricDistributions.newBuilder()
+    swmd.writeBytes.foreach(wb => builder.addWriteBytes(wb))
+    swmd.writeRecords.foreach(wr => builder.addWriteRecords(wr))
+    swmd.writeTime.foreach(wt => builder.addWriteTime(wt))
+    builder.build()
+  }
+
+  private def serializeExecutorMetricsDistributions(
+      emd: ExecutorMetricsDistributions): 
StoreTypes.ExecutorMetricsDistributions = {
+    val builder = StoreTypes.ExecutorMetricsDistributions.newBuilder()
+    emd.quantiles.foreach(q => builder.addQuantiles(q))
+    emd.taskTime.foreach(tt => builder.addTaskTime(tt))
+    emd.failedTasks.foreach(ft => builder.addFailedTasks(ft))
+    emd.succeededTasks.foreach(st => builder.addSucceededTasks(st))
+    emd.killedTasks.foreach(kt => builder.addKilledTasks(kt))
+    emd.inputBytes.foreach(ib => builder.addInputBytes(ib))
+    emd.inputRecords.foreach(ir => builder.addInputRecords(ir))
+    emd.outputBytes.foreach(ob => builder.addOutputBytes(ob))
+    emd.outputRecords.foreach(or => builder.addOutputRecords(or))
+    emd.shuffleRead.foreach(sr => builder.addShuffleRead(sr))
+    emd.shuffleReadRecords.foreach(srr => builder.addShuffleReadRecords(srr))
+    emd.shuffleWrite.foreach(sw => builder.addShuffleWrite(sw))
+    emd.shuffleWriteRecords.foreach(swr => builder.addShuffleWriteRecords(swr))
+    emd.memoryBytesSpilled.foreach(mbs => builder.addMemoryBytesSpilled(mbs))
+    emd.diskBytesSpilled.foreach(dbs => builder.addDiskBytesSpilled(dbs))
+    
builder.setPeakMemoryMetrics(serializeExecutorPeakMetricsDistributions(emd.peakMemoryMetrics))
+    builder.build()
+  }
+
+  private def serializeExecutorPeakMetricsDistributions(
+      epmd: ExecutorPeakMetricsDistributions): 
StoreTypes.ExecutorPeakMetricsDistributions = {
+    val builder = StoreTypes.ExecutorPeakMetricsDistributions.newBuilder()
+    epmd.quantiles.foreach(q => builder.addQuantiles(q))
+    epmd.executorMetrics.foreach(em => builder.addExecutorMetrics(
+      ExecutorMetricsSerializer.serialize(em)))
+    builder.build()
+  }
+
+  override def deserialize(bytes: Array[Byte]): StageDataWrapper = {
+    val binary = StoreTypes.StageDataWrapper.parseFrom(bytes)
+    val info = deserializeStageData(binary.getInfo)
+    new StageDataWrapper(
+      info = info,
+      jobIds = binary.getJobIdsList.asScala.map(_.toInt).toSet,
+      locality = binary.getLocalityMap.asScala.mapValues(_.toLong).toMap
+    )
+  }
+
+  private def deserializeStageData(binary: StoreTypes.StageData): StageData = {
+    val status = StageStatus.valueOf(binary.getStatus.toString)
+    val submissionTime =
+      getOptional(binary.hasSubmissionTime, () => new 
Date(binary.getSubmissionTime))
+    val firstTaskLaunchedTime =
+      getOptional(binary.hasFirstTaskLaunchedTime, () => new 
Date(binary.getFirstTaskLaunchedTime))
+    val completionTime =
+      getOptional(binary.hasCompletionTime, () => new 
Date(binary.getCompletionTime))
+    val failureReason =
+      getOptional(binary.hasFailureReason, () => 
weakIntern(binary.getFailureReason))
+    val description =
+      getOptional(binary.hasDescription, () => 
weakIntern(binary.getDescription))
+    val accumulatorUpdates = 
AccumulableInfoSerializer.deserializeAccumulableInfos(
+      binary.getAccumulatorUpdatesList)
+    val tasks = MapUtils.isEmpty(binary.getTasksMap) match {
+      case true => None
+      case _ => Some(binary.getTasksMap.asScala.map(
+        entry => (entry._1.toLong, deserializeTaskData(entry._2))).toMap)
+    }
+    val executorSummary = MapUtils.isEmpty(binary.getExecutorSummaryMap) match 
{
+      case true => None
+      case _ => Some(binary.getExecutorSummaryMap.asScala.mapValues(
+          
ExecutorStageSummarySerializer.deserializeExecutorStageSummary(_)).toMap

Review Comment:
   Done



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