HeartSaVioR commented on a change in pull request #25943:
[WIP][SPARK-29261][SQL][CORE] Support recover live entities from KVStore for
(SQL)AppStatusListener
URL: https://github.com/apache/spark/pull/25943#discussion_r331387437
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File path: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala
##########
@@ -103,6 +104,81 @@ private[spark] class AppStatusListener(
}
}
+ // visible for tests
+ private[spark] def recoverLiveEntities(): Unit = {
+ if (!live) {
+ kvstore.view(classOf[JobDataWrapper])
+ .asScala.filter(_.info.status == JobExecutionStatus.RUNNING)
+ .map(_.toLiveJob).foreach(job => liveJobs.put(job.jobId, job))
+
+ kvstore.view(classOf[StageDataWrapper]).asScala
+ .filter { stageData =>
+ stageData.info.status == v1.StageStatus.PENDING ||
+ stageData.info.status == v1.StageStatus.ACTIVE
+ }
+ .map { stageData =>
+ val stageId = stageData.info.stageId
+ val jobs = liveJobs.values.filter(_.stageIds.contains(stageId)).toSeq
+ stageData.toLiveStage(jobs)
+ }.foreach { stage =>
+ val stageId = stage.info.stageId
+ val stageAttempt = stage.info.attemptNumber()
+ liveStages.put((stageId, stageAttempt), stage)
+
+ kvstore.view(classOf[ExecutorStageSummaryWrapper])
+ .index("stage")
+ .first(Array(stageId, stageAttempt))
+ .last(Array(stageId, stageAttempt))
+ .asScala
+ .map(_.toLiveExecutorStageSummary)
+ .foreach { esummary =>
+ stage.executorSummaries.put(esummary.executorId, esummary)
+ if (esummary.isBlacklisted) {
+ stage.blackListedExecutors += esummary.executorId
+ liveExecutors(esummary.executorId).isBlacklisted = true
+ liveExecutors(esummary.executorId).blacklistedInStages += stageId
+ }
+ }
+
+
+ kvstore.view(classOf[TaskDataWrapper])
+ .parent(Array(stageId, stageAttempt))
+ .index(TaskIndexNames.STATUS)
+ .first(TaskState.RUNNING.toString)
+ .last(TaskState.RUNNING.toString)
+ .closeableIterator().asScala
+ .map(_.toLiveTask)
+ .foreach { task =>
+ liveTasks.put(task.info.taskId, task)
+ stage.activeTasksPerExecutor(task.info.executorId) += 1
+ }
+
stage.savedTasks.addAndGet(kvstore.count(classOf[TaskDataWrapper]).intValue())
+ }
+
kvstore.view(classOf[ExecutorSummaryWrapper]).asScala.filter(_.info.isActive)
+ .map(_.toLiveExecutor).foreach(exec =>
liveExecutors.put(exec.executorId, exec))
+ kvstore.view(classOf[RDDStorageInfoWrapper]).asScala
Review comment:
nit: same here, but just a suggestion (as the indentation is not
dramatically changed)
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