本文整理汇总了Java中org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.JobInfo.getFinishedReduces方法的典型用法代码示例。如果您正苦于以下问题：Java JobInfo.getFinishedReduces方法的具体用法？Java JobInfo.getFinishedReduces怎么用？Java JobInfo.getFinishedReduces使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.JobInfo的用法示例。
在下文中一共展示了JobInfo.getFinishedReduces方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: AnalyzedJob
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.JobInfo; //导入方法依赖的package包/类
/** Generate analysis information for the parsed job */
public AnalyzedJob (JobInfo job) {
Map<TaskID, JobHistoryParser.TaskInfo> tasks = job.getAllTasks();
int finishedMaps = (int) job.getFinishedMaps();
int finishedReduces = (int) job.getFinishedReduces();
mapTasks =
new JobHistoryParser.TaskAttemptInfo[finishedMaps];
reduceTasks =
new JobHistoryParser.TaskAttemptInfo[finishedReduces];
int mapIndex = 0 , reduceIndex=0;
avgMapTime = 0;
avgReduceTime = 0;
avgShuffleTime = 0;
for (JobHistoryParser.TaskInfo task : tasks.values()) {
Map<TaskAttemptID, JobHistoryParser.TaskAttemptInfo> attempts =
task.getAllTaskAttempts();
for (JobHistoryParser.TaskAttemptInfo attempt : attempts.values()) {
if (attempt.getTaskStatus().
equals(TaskStatus.State.SUCCEEDED.toString())) {
long avgFinishTime = (attempt.getFinishTime() -
attempt.getStartTime());
if (attempt.getTaskType().equals(TaskType.MAP)) {
mapTasks[mapIndex++] = attempt;
avgMapTime += avgFinishTime;
} else if (attempt.getTaskType().equals(TaskType.REDUCE)) {
reduceTasks[reduceIndex++] = attempt;
avgShuffleTime += (attempt.getShuffleFinishTime() -
attempt.getStartTime());
avgReduceTime += (attempt.getFinishTime() -
attempt.getShuffleFinishTime());
}
break;
}
}
}
if (finishedMaps > 0) {
avgMapTime /= finishedMaps;
}
if (finishedReduces > 0) {
avgReduceTime /= finishedReduces;
avgShuffleTime /= finishedReduces;
}
}