spark DriverInfo 源码
spark DriverInfo 代码
文件路径：/core/src/main/scala/org/apache/spark/deploy/master/DriverInfo.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.deploy.master
import java.util.Date
import org.apache.spark.deploy.DriverDescription
import org.apache.spark.resource.ResourceInformation
import org.apache.spark.util.Utils
private[deploy] class DriverInfo(
val startTime: Long,
val id: String,
val desc: DriverDescription,
val submitDate: Date)
extends Serializable {
@transient var state: DriverState.Value = DriverState.SUBMITTED
/* If we fail when launching the driver, the exception is stored here. */
@transient var exception: Option[Exception] = None
/* Most recent worker assigned to this driver */
@transient var worker: Option[WorkerInfo] = None
// resources(e.f. gpu/fpga) allocated to this driver
// map from resource name to ResourceInformation
private var _resources: Map[String, ResourceInformation] = Map.empty
init()
private def readObject(in: java.io.ObjectInputStream): Unit = Utils.tryOrIOException {
in.defaultReadObject()
init()
}
private def init(): Unit = {
state = DriverState.SUBMITTED
worker = None
exception = None
}
def withResources(r: Map[String, ResourceInformation]): Unit = _resources = r
def resources: Map[String, ResourceInformation] = _resources
}
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