Question

我正在尝试在Hadoop集群上运行MR作业。一旦我成功尝试，但从昨天起我无法运行相同的命令，因为它无法找到输入路径

这里是跟踪：

[esb99usr@SBT-IPO-078 ~]$ yarn jar /tmp/mihaylov-temp/MR.jar 
ru.sbt.hadoop.mr.data.index.DayDataIndexStart -D ru.sbt.hadoop.mr.map.mb=3072 -D ru.sbt.hadoop.mr.reduce.count=8 -D ru.sbt.hadoop.mr.map.count=80 /nameservices/supercluster/esbLogs/year/2015/months/7/days/27/hrs/18/ /nameservices/supercluster/esbLogs/year/2015/months/7/days/27/sort/ 1440622800966   1440709200966

15/09/03 14:33:37 INFO client.RMProxy: Connecting to ResourceManager at SBT-IPO-077.ca.sbrf.ru/10.116.6.195:8032
15/09/03 14:33:38 INFO mapreduce.JobSubmitter: Cleaning up the staging area /nameservices/supercluster/user/esb99usr/.staging/job_1439318575767_0078
15/09/03 14:33:38 WARN security.UserGroupInformation: PriviledgedActionException as:esb99usr (auth:SIMPLE) cause:org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: viewfs://cluster16/nameservices/supercluster/esbLogs/year/2015/months/7/days/27/hrs/18
Exception in thread "main" org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does not exist: viewfs://cluster16/nameservices/supercluster/esbLogs/year/2015/months/7/days/27/hrs/18

at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.singleThreadedListStatus(FileInputFormat.java:321)
        ..........


[esb99usr@SBT-IPO-078 ~]$ hdfs dfs -ls /nameservices/supercluster/esbLogs/year/2015/months/7/days/27/hrs/18/
Found 2 items
-rw-r--r--   3 wasadmin supergroup 1417233459 2015-08-27 21:39 /nameservices/supercluster/esbLogs/year/2015/months/7/days/27/hrs/18/log1.seq
-rw-r--r--   3 wasadmin supergroup    6020096 2015-08-27 21:39 /nameservices/supercluster/esbLogs/year/2015/months/7/days/27/hrs/18/log1.seq.filter

因此，当我运行MR作业时，它声称输入路径不存在，但我可以通过hadoop dfs -ls /....看到它。它一直工作到昨天，没有证据表明群集已经崩溃，Cloudera表示它已经上升，群集的健康状况良好。这个问题怎么解决？

Answer 1

运行作业的命令是

]$ yarn jar /tmp/mihaylov-temp/MR.jar (Main Class Name) (input file path) (output directoru path)

Hadoop mapreduce输入路径不存在（MR Job寻找什么文件系统？）

1 个答案: