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From gatorsmile <...@git.apache.org>
Subject [GitHub] spark pull request #18303: [SPARK-19824][Core] Update JsonProtocol to keep c...
Date Sun, 18 Jun 2017 17:27:03 GMT
Github user gatorsmile commented on a diff in the pull request:

    https://github.com/apache/spark/pull/18303#discussion_r122596579
  
    --- Diff: core/src/main/scala/org/apache/spark/deploy/JsonProtocol.scala ---
    @@ -21,74 +21,192 @@ import org.json4s.JsonAST.JObject
     import org.json4s.JsonDSL._
     
     import org.apache.spark.deploy.DeployMessages.{MasterStateResponse, WorkerStateResponse}
    -import org.apache.spark.deploy.master.{ApplicationInfo, DriverInfo, WorkerInfo}
    +import org.apache.spark.deploy.master._
    +import org.apache.spark.deploy.master.RecoveryState.MasterState
     import org.apache.spark.deploy.worker.ExecutorRunner
     
     private[deploy] object JsonProtocol {
    - def writeWorkerInfo(obj: WorkerInfo): JObject = {
    -   ("id" -> obj.id) ~
    -   ("host" -> obj.host) ~
    -   ("port" -> obj.port) ~
    -   ("webuiaddress" -> obj.webUiAddress) ~
    -   ("cores" -> obj.cores) ~
    -   ("coresused" -> obj.coresUsed) ~
    -   ("coresfree" -> obj.coresFree) ~
    -   ("memory" -> obj.memory) ~
    -   ("memoryused" -> obj.memoryUsed) ~
    -   ("memoryfree" -> obj.memoryFree) ~
    -   ("state" -> obj.state.toString) ~
    -   ("lastheartbeat" -> obj.lastHeartbeat)
    - }
    +  /**
    +   * Export the [[WorkerInfo]] to a Json object, a [[WorkerInfo]] consists of the information
of a
    +   * worker.
    +   *
    +   * @return a Json object containing the following fields:
    +   *         `id` a string identifier of the worker
    +   *         `host` the host that the worker is running on
    +   *         `port` the port that the worker is bound to
    +   *         `address` ${host}:${port}
    +   *         `webuiaddress` the address used in web UI
    +   *         `cores` total cores of the worker
    +   *         `coresused` allocated cores of the worker
    +   *         `coresfree` free cores of the worker
    +   *         `memory` total memory of the worker
    +   *         `memoryused` allocated memory of the worker
    +   *         `memoryfree` free memory of the worker
    +   *         `state` state of the worker, see [[WorkerState]]
    +   *         `lastheartbeat` time in milliseconds that the latest heart beat message
from the
    +   *         worker is received.
    +   */
    +  def writeWorkerInfo(obj: WorkerInfo): JObject = {
    +    ("id" -> obj.id) ~
    +    ("host" -> obj.host) ~
    +    ("port" -> obj.port) ~
    +    ("address" -> obj.hostPort) ~
    +    ("webuiaddress" -> obj.webUiAddress) ~
    +    ("cores" -> obj.cores) ~
    +    ("coresused" -> obj.coresUsed) ~
    +    ("coresfree" -> obj.coresFree) ~
    +    ("memory" -> obj.memory) ~
    +    ("memoryused" -> obj.memoryUsed) ~
    +    ("memoryfree" -> obj.memoryFree) ~
    +    ("state" -> obj.state.toString) ~
    +    ("lastheartbeat" -> obj.lastHeartbeat)
    +  }
     
    +  /**
    +   * Export the [[ApplicationInfo]] to a Json object, an [[ApplicationInfo]] consists
of the
    +   * information of an application.
    +   *
    +   * @return a Json object containing the following fields:
    +   *         `id` a string identifier of the application
    +   *         `starttime` time in milliseconds that the application starts
    +   *         `name` a name describes the application
    +   *         `cores` total cores granted to the application
    +   *         `user` name of the user who submitted the application
    +   *         `memoryperslave` minimal memory in MB required to each executor
    +   *         `submitdate` time in Date that the application is submitted
    +   *         `state` state of the application, see [[ApplicationState]]
    +   *         `duration` time in milliseconds that the application has been running
    +   */
       def writeApplicationInfo(obj: ApplicationInfo): JObject = {
         ("starttime" -> obj.startTime) ~
         ("id" -> obj.id) ~
         ("name" -> obj.desc.name) ~
    -    ("cores" -> obj.desc.maxCores) ~
    +    ("cores" -> obj.coresGranted) ~
         ("user" -> obj.desc.user) ~
         ("memoryperslave" -> obj.desc.memoryPerExecutorMB) ~
         ("submitdate" -> obj.submitDate.toString) ~
         ("state" -> obj.state.toString) ~
         ("duration" -> obj.duration)
       }
     
    +  /**
    +   * Export the [[ApplicationDescription]] to a Json object, an [[ApplicationDescription]]
consists
    +   * of the description of an application.
    +   *
    +   * @return a Json object containing the following fields:
    +   *         `name` a name describes the application
    --- End diff --
    
    -> the description of the application


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