After installing Hadoop 2.3.0 on windows 8, I tried to run the
wordcount example given. However I get the following error:
c:\hadoop>bin\yarn jar
share/hadoop/mapreduce/hadoop-mapreduce-examples-2.3.0.ja
r wordcount /input output
14/03/26 14:20:48 INFO client.RMProxy: Connecting to ResourceManager at
/0.0.0.0
:8032
14/03/26 14:20:50 INFO input.FileInputFormat: Total input paths to
process : 1
14/03/26 14:20:51 INFO mapreduce.JobSubmitter: number of splits:1
14/03/26 14:20:51 INFO Configuration.deprecation: user.name is
deprecated. Inste
ad, use mapreduce.job.user.name
14/03/26 14:20:51 INFO Configuration.deprecation: mapred.jar is
deprecated. Inst
ead, use mapreduce.job.jar
14/03/26 14:20:51 INFO Configuration.deprecation:
mapred.output.value.class is d
eprecated. Instead, use mapreduce.job.output.value.class
14/03/26 14:20:51 INFO Configuration.deprecation:
mapreduce.combine.class is dep
recated. Instead, use mapreduce.job.combine.class
14/03/26 14:20:51 INFO Configuration.deprecation: mapreduce.map.class
is depreca
ted. Instead, use mapreduce.job.map.class
14/03/26 14:20:51 INFO Configuration.deprecation: mapred.job.name is
deprecated.
Instead, use mapreduce.job.name
14/03/26 14:20:51 INFO Configuration.deprecation:
mapreduce.reduce.class is depr
ecated. Instead, use mapreduce.job.reduce.class
14/03/26 14:20:51 INFO Configuration.deprecation: mapred.input.dir is
deprecated
. Instead, use mapreduce.input.fileinputformat.inputdir
14/03/26 14:20:51 INFO Configuration.deprecation: mapred.output.dir is
deprecate
d. Instead, use mapreduce.output.fileoutputformat.outputdir
14/03/26 14:20:51 INFO Configuration.deprecation: mapred.map.tasks is
deprecated
. Instead, use mapreduce.job.maps
14/03/26 14:20:51 INFO Configuration.deprecation:
mapred.output.key.class is dep
recated. Instead, use mapreduce.job.output.key.class
14/03/26 14:20:51 INFO Configuration.deprecation: mapred.working.dir is
deprecat
ed. Instead, use mapreduce.job.working.dir
14/03/26 14:20:51 INFO mapreduce.JobSubmitter: Submitting tokens for
job: job_13
95833928952_0004
14/03/26 14:20:52 INFO impl.YarnClientImpl: Submitted application
application_13
95833928952_0004 to ResourceManager at /0.0.0.0:8032
14/03/26 14:20:52 INFO mapreduce.Job: The url to track the job:
http://teste:8088/proxy/application_1395833928952_0004/
14/03/26 14:20:52 INFO mapreduce.Job: Running job:
job_1395833928952_0004
14/03/26 14:21:08 INFO mapreduce.Job: Job job_1395833928952_0004
running in uber
mode : false
14/03/26 14:21:08 INFO mapreduce.Job: map 0% reduce 0%
14/03/26 14:21:20 INFO mapreduce.Job: Task Id :
attempt_1395833928952_0004_m_000
000_0, Status : FAILED
Error: java.lang.ClassCastException:
org.apache.hadoop.mapreduce.lib.input.FileS
plit cannot be cast to org.apache.hadoop.mapred.InputSplit
at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:402)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInforma
tion.java:1491)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)
14/03/26 14:21:33 INFO mapreduce.Job: Task Id :
attempt_1395833928952_0004_m_000
000_1, Status : FAILED
Error: java.lang.ClassCastException:
org.apache.hadoop.mapreduce.lib.input.FileS
plit cannot be cast to org.apache.hadoop.mapred.InputSplit
at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:402)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInforma
tion.java:1491)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)
14/03/26 14:21:48 INFO mapreduce.Job: Task Id :
attempt_1395833928952_0004_m_000
000_2, Status : FAILED
Error: java.lang.ClassCastException:
org.apache.hadoop.mapreduce.lib.input.FileS
plit cannot be cast to org.apache.hadoop.mapred.InputSplit
at
org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:402)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:162)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInforma
tion.java:1491)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:157)
14/03/26 14:22:04 INFO mapreduce.Job: map 100% reduce 100%
14/03/26 14:22:10 INFO mapreduce.Job: Job job_1395833928952_0004 failed
with sta
te FAILED due to: Task failed task_1395833928952_0004_m_000000
Job failed as tasks failed. failedMaps:1 failedReduces:0
14/03/26 14:22:10 INFO mapreduce.Job: Counters: 6
Job Counters
Failed map tasks=4
Launched map tasks=4
Other local map tasks=3
Data-local map tasks=1
Total time spent by all maps in occupied slots
(ms)=48786
Total time spent by all reduces in occupied slots
(ms)=0
I then tried to run my own wordcount with the current api and the same
error occurs, I also tried installing Hadoop 2.2.0 and yet the same
error happens, so I have no idea why this API error occurs. I have seen
this error mentioned in several places but with no solution given so I
decided to come here to ask since I am out of ideas on how to solve it.
