如图所示：仔细查看错误信息会发现有下面一条：2022-07-1020:17:39,786INFOmapreduce.Job:Jobjob_1657447073157_0042runninginubermode:false2022-07-1020:17:39,787INFOmapreduce.Job: map0%reduce0%2022-07-1020:17:47,083INFOmapreduce.Job: map25%reduce0%2022-07-1020:17:51,103INFOmapreduce.Job: map100%reduce0%报错的jobId就是 Jobjob_1657447