spark ReceiverTrackingInfo 源码
spark ReceiverTrackingInfo 代码
文件路径：/streaming/src/main/scala/org/apache/spark/streaming/scheduler/ReceiverTrackingInfo.scala
/*
* 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.streaming.scheduler
import org.apache.spark.rpc.RpcEndpointRef
import org.apache.spark.scheduler.{ExecutorCacheTaskLocation, TaskLocation}
import org.apache.spark.streaming.scheduler.ReceiverState._
private[streaming] case class ReceiverErrorInfo(
lastErrorMessage: String = "", lastError: String = "", lastErrorTime: Long = -1L)
/**
* Class having information about a receiver.
*
* @param receiverId the unique receiver id
* @param state the current Receiver state
* @param scheduledLocations the scheduled locations provided by ReceiverSchedulingPolicy
* @param runningExecutor the running executor if the receiver is active
* @param name the receiver name
* @param endpoint the receiver endpoint. It can be used to send messages to the receiver
* @param errorInfo the receiver error information if it fails
*/
private[streaming] case class ReceiverTrackingInfo(
receiverId: Int,
state: ReceiverState,
scheduledLocations: Option[Seq[TaskLocation]],
runningExecutor: Option[ExecutorCacheTaskLocation],
name: Option[String] = None,
endpoint: Option[RpcEndpointRef] = None,
errorInfo: Option[ReceiverErrorInfo] = None) {
def toReceiverInfo: ReceiverInfo = ReceiverInfo(
receiverId,
name.getOrElse(""),
state == ReceiverState.ACTIVE,
location = runningExecutor.map(_.host).getOrElse(""),
executorId = runningExecutor.map(_.executorId).getOrElse(""),
lastErrorMessage = errorInfo.map(_.lastErrorMessage).getOrElse(""),
lastError = errorInfo.map(_.lastError).getOrElse(""),
lastErrorTime = errorInfo.map(_.lastErrorTime).getOrElse(-1L)
)
}
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