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Changed streaming UI to attach itself as a tab with the Spark UI.
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131 changes: 131 additions & 0 deletions
131
streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingProgressListener.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| package org.apache.spark.streaming.ui | ||
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| import org.apache.spark.streaming.{Time, StreamingContext} | ||
| import org.apache.spark.streaming.scheduler._ | ||
| import scala.collection.mutable.{Queue, HashMap} | ||
| import org.apache.spark.streaming.scheduler.StreamingListenerReceiverStarted | ||
| import org.apache.spark.streaming.scheduler.StreamingListenerBatchStarted | ||
| import org.apache.spark.streaming.scheduler.BatchInfo | ||
| import org.apache.spark.streaming.scheduler.ReceiverInfo | ||
| import org.apache.spark.streaming.scheduler.StreamingListenerBatchSubmitted | ||
| import org.apache.spark.util.Distribution | ||
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| private[ui] class StreamingProgressListener(ssc: StreamingContext) extends StreamingListener { | ||
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| private val waitingBatchInfos = new HashMap[Time, BatchInfo] | ||
| private val runningBatchInfos = new HashMap[Time, BatchInfo] | ||
| private val completedaBatchInfos = new Queue[BatchInfo] | ||
| private val batchInfoLimit = ssc.conf.getInt("spark.steaming.ui.maxBatches", 100) | ||
| private var totalCompletedBatches = 0L | ||
| private val receiverInfos = new HashMap[Int, ReceiverInfo] | ||
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| val batchDuration = ssc.graph.batchDuration.milliseconds | ||
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| override def onReceiverStarted(receiverStarted: StreamingListenerReceiverStarted) = { | ||
| synchronized { | ||
| receiverInfos.put(receiverStarted.receiverInfo.streamId, receiverStarted.receiverInfo) | ||
| } | ||
| } | ||
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| override def onBatchSubmitted(batchSubmitted: StreamingListenerBatchSubmitted) = synchronized { | ||
| runningBatchInfos(batchSubmitted.batchInfo.batchTime) = batchSubmitted.batchInfo | ||
| } | ||
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| override def onBatchStarted(batchStarted: StreamingListenerBatchStarted) = synchronized { | ||
| runningBatchInfos(batchStarted.batchInfo.batchTime) = batchStarted.batchInfo | ||
| waitingBatchInfos.remove(batchStarted.batchInfo.batchTime) | ||
| } | ||
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| override def onBatchCompleted(batchCompleted: StreamingListenerBatchCompleted) = synchronized { | ||
| waitingBatchInfos.remove(batchCompleted.batchInfo.batchTime) | ||
| runningBatchInfos.remove(batchCompleted.batchInfo.batchTime) | ||
| completedaBatchInfos.enqueue(batchCompleted.batchInfo) | ||
| if (completedaBatchInfos.size > batchInfoLimit) completedaBatchInfos.dequeue() | ||
| totalCompletedBatches += 1L | ||
| } | ||
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| def numNetworkReceivers = synchronized { | ||
| ssc.graph.getNetworkInputStreams().size | ||
| } | ||
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| def numTotalCompletedBatches: Long = synchronized { | ||
| totalCompletedBatches | ||
| } | ||
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| def numUnprocessedBatches: Long = synchronized { | ||
| waitingBatchInfos.size + runningBatchInfos.size | ||
| } | ||
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| def waitingBatches: Seq[BatchInfo] = synchronized { | ||
| waitingBatchInfos.values.toSeq | ||
| } | ||
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| def runningBatches: Seq[BatchInfo] = synchronized { | ||
| runningBatchInfos.values.toSeq | ||
| } | ||
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| def completedBatches: Seq[BatchInfo] = synchronized { | ||
| completedaBatchInfos.toSeq | ||
| } | ||
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| def processingDelayDistribution: Option[Distribution] = synchronized { | ||
| extractDistribution(_.processingDelay) | ||
| } | ||
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| def schedulingDelayDistribution: Option[Distribution] = synchronized { | ||
| extractDistribution(_.schedulingDelay) | ||
| } | ||
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| def totalDelayDistribution: Option[Distribution] = synchronized { | ||
| extractDistribution(_.totalDelay) | ||
| } | ||
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| def receivedRecordsDistributions: Map[Int, Option[Distribution]] = synchronized { | ||
| val latestBatchInfos = allBatches.reverse.take(batchInfoLimit) | ||
| val latestBlockInfos = latestBatchInfos.map(_.receivedBlockInfo) | ||
| (0 until numNetworkReceivers).map { receiverId => | ||
| val blockInfoOfParticularReceiver = latestBlockInfos.map { batchInfo => | ||
| batchInfo.get(receiverId).getOrElse(Array.empty) | ||
| } | ||
| val recordsOfParticularReceiver = blockInfoOfParticularReceiver.map { blockInfo => | ||
| // calculate records per second for each batch | ||
| blockInfo.map(_.numRecords).sum.toDouble * 1000 / batchDuration | ||
| } | ||
| val distributionOption = Distribution(recordsOfParticularReceiver) | ||
| (receiverId, distributionOption) | ||
| }.toMap | ||
| } | ||
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| def lastReceivedBatchRecords: Map[Int, Long] = { | ||
| val lastReceivedBlockInfoOption = lastReceivedBatch.map(_.receivedBlockInfo) | ||
| lastReceivedBlockInfoOption.map { lastReceivedBlockInfo => | ||
| (0 until numNetworkReceivers).map { receiverId => | ||
| (receiverId, lastReceivedBlockInfo(receiverId).map(_.numRecords).sum) | ||
| }.toMap | ||
| }.getOrElse { | ||
| (0 until numNetworkReceivers).map(receiverId => (receiverId, 0L)).toMap | ||
| } | ||
| } | ||
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| def receiverInfo(receiverId: Int): Option[ReceiverInfo] = { | ||
| receiverInfos.get(receiverId) | ||
| } | ||
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| def lastCompletedBatch: Option[BatchInfo] = { | ||
| completedaBatchInfos.sortBy(_.batchTime)(Time.ordering).lastOption | ||
| } | ||
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| def lastReceivedBatch: Option[BatchInfo] = { | ||
| allBatches.lastOption | ||
| } | ||
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| private def allBatches: Seq[BatchInfo] = synchronized { | ||
| (waitingBatchInfos.values.toSeq ++ | ||
| runningBatchInfos.values.toSeq ++ completedaBatchInfos).sortBy(_.batchTime)(Time.ordering) | ||
| } | ||
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| private def extractDistribution(getMetric: BatchInfo => Option[Long]): Option[Distribution] = { | ||
| Distribution(completedaBatchInfos.flatMap(getMetric(_)).map(_.toDouble)) | ||
| } | ||
| } |
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