org.apache.spark.deploy.master.WorkerInfo.scala Maven / Gradle / Ivy
/*
* 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 scala.collection.mutable
import org.apache.spark.rpc.RpcEndpointRef
import org.apache.spark.util.Utils
private[spark] class WorkerInfo(
val id: String,
val host: String,
val port: Int,
val cores: Int,
val memory: Int,
val endpoint: RpcEndpointRef,
val webUiPort: Int,
val publicAddress: String)
extends Serializable {
Utils.checkHost(host, "Expected hostname")
assert (port > 0)
@transient var executors: mutable.HashMap[String, ExecutorDesc] = _ // executorId => info
@transient var drivers: mutable.HashMap[String, DriverInfo] = _ // driverId => info
@transient var state: WorkerState.Value = _
@transient var coresUsed: Int = _
@transient var memoryUsed: Int = _
@transient var lastHeartbeat: Long = _
init()
def coresFree: Int = cores - coresUsed
def memoryFree: Int = memory - memoryUsed
private def readObject(in: java.io.ObjectInputStream): Unit = Utils.tryOrIOException {
in.defaultReadObject()
init()
}
private def init() {
executors = new mutable.HashMap
drivers = new mutable.HashMap
state = WorkerState.ALIVE
coresUsed = 0
memoryUsed = 0
lastHeartbeat = System.currentTimeMillis()
}
def hostPort: String = {
assert (port > 0)
host + ":" + port
}
def addExecutor(exec: ExecutorDesc) {
executors(exec.fullId) = exec
coresUsed += exec.cores
memoryUsed += exec.memory
}
def removeExecutor(exec: ExecutorDesc) {
if (executors.contains(exec.fullId)) {
executors -= exec.fullId
coresUsed -= exec.cores
memoryUsed -= exec.memory
}
}
def hasExecutor(app: ApplicationInfo): Boolean = {
executors.values.exists(_.application == app)
}
def addDriver(driver: DriverInfo) {
drivers(driver.id) = driver
memoryUsed += driver.desc.mem
coresUsed += driver.desc.cores
}
def removeDriver(driver: DriverInfo) {
drivers -= driver.id
memoryUsed -= driver.desc.mem
coresUsed -= driver.desc.cores
}
def webUiAddress : String = {
"http://" + this.publicAddress + ":" + this.webUiPort
}
def setState(state: WorkerState.Value): Unit = {
this.state = state
}
def isAlive(): Boolean = this.state == WorkerState.ALIVE
}