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From YIMEN YIMGA Gael <gael.yimen-yi...@sgcib.com>
Subject RE: Explanation according to the output of a successful execution
Date Mon, 15 Sep 2014 13:38:19 GMT
Hi Shabab,

Here is the explanation of the error fixing


-          First of all, the folder OUTPUT must not exist because, it will be created during
MAP and REDUCE processing.

-          Secondly, as I set the INPUT folder using the following instruction in my java
program (FileInputFormat.setInputPaths(conf, new Path("/home/hadoop/hadoop/input"));), I 
should leave <value> empty in the parameter file conf/core-site.xml

After that, you’ll fix the following error

==
14/09/11 12:06:10 ERROR security.UserGroupInformation: PriviledgedActionException as:hadoop
cause:org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://latdevweb02:9000/home/hadoop/hadoop/input
org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://latdevweb02:9000/home/hadoop/hadoop/input
        at org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:197)
        at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:208)

==

Now I would like that someone who has a lot of experience with Hadoop tries to explain me
the output I have after running succefully my program.

Standing by…

Thanks in advance.

GYY

From: Shahab Yunus [mailto:shahab.yunus@gmail.com]
Sent: Monday 15 September 2014 15:20
To: user@hadoop.apache.org
Subject: Re: Explanation according to the output of a successful execution

How did you fix it? And what is your question now?

Regards,
Shahab

On Mon, Sep 15, 2014 at 9:18 AM, YIMEN YIMGA Gael <gael.yimen-yimga@sgcib.com<mailto:gael.yimen-yimga@sgcib.com>>
wrote:
Hello Dear Hadoopers,

Just to let you know that, finally I succeded fixing my issue this morning.
Now, I would like to have more explanation according to the output of the running.
Here is the output:

===

-bash-4.1$ bin/hadoop jar WordCount.jar
Entr?e dans le programme MAIN !!!
14/09/15 15:00:41 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments.
Applications should implement Tool for the sam.
14/09/15 15:00:41 INFO util.NativeCodeLoader: Loaded the native-hadoop library
14/09/15 15:00:41 WARN snappy.LoadSnappy: Snappy native library not loaded
14/09/15 15:00:41 INFO mapred.FileInputFormat: Total input paths to process : 17
14/09/15 15:00:42 INFO mapred.JobClient: Running job: job_201409101141_0008
14/09/15 15:00:43 INFO mapred.JobClient:  map 0% reduce 0%
14/09/15 15:00:50 INFO mapred.JobClient:  map 11% reduce 0%
14/09/15 15:00:53 INFO mapred.JobClient:  map 17% reduce 0%
14/09/15 15:00:54 INFO mapred.JobClient:  map 23% reduce 0%
14/09/15 15:00:56 INFO mapred.JobClient:  map 35% reduce 0%
14/09/15 15:00:59 INFO mapred.JobClient:  map 47% reduce 0%
14/09/15 15:01:02 INFO mapred.JobClient:  map 58% reduce 0%
14/09/15 15:01:04 INFO mapred.JobClient:  map 64% reduce 0%
14/09/15 15:01:05 INFO mapred.JobClient:  map 70% reduce 19%
14/09/15 15:01:07 INFO mapred.JobClient:  map 82% reduce 19%
14/09/15 15:01:09 INFO mapred.JobClient:  map 88% reduce 19%
14/09/15 15:01:10 INFO mapred.JobClient:  map 94% reduce 19%
14/09/15 15:01:11 INFO mapred.JobClient:  map 100% reduce 19%
14/09/15 15:01:14 INFO mapred.JobClient:  map 100% reduce 27%
14/09/15 15:01:15 INFO mapred.JobClient:  map 100% reduce 100%
14/09/15 15:01:16 INFO mapred.JobClient: Job complete: job_201409101141_0008
14/09/15 15:01:16 INFO mapred.JobClient: Counters: 29
14/09/15 15:01:16 INFO mapred.JobClient:   Job Counters
14/09/15 15:01:16 INFO mapred.JobClient:     Launched reduce tasks=1
14/09/15 15:01:16 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=47158
14/09/15 15:01:16 INFO mapred.JobClient:     Total time spent by all reduces waiting after
reserving slots (ms)=0
14/09/15 15:01:16 INFO mapred.JobClient:     Total time spent by all maps waiting after reserving
slots (ms)=0
14/09/15 15:01:16 INFO mapred.JobClient:     Rack-local map tasks=17
14/09/15 15:01:16 INFO mapred.JobClient:     Launched map tasks=17
14/09/15 15:01:16 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=25510
14/09/15 15:01:16 INFO mapred.JobClient:   File Input Format Counters
14/09/15 15:01:16 INFO mapred.JobClient:     Bytes Read=34293
14/09/15 15:01:16 INFO mapred.JobClient:   File Output Format Counters
14/09/15 15:01:16 INFO mapred.JobClient:     Bytes Written=16014
14/09/15 15:01:16 INFO mapred.JobClient:   FileSystemCounters
14/09/15 15:01:16 INFO mapred.JobClient:     FILE_BYTES_READ=65480
14/09/15 15:01:16 INFO mapred.JobClient:     HDFS_BYTES_READ=1715
14/09/15 15:01:16 INFO mapred.JobClient:     FILE_BYTES_WRITTEN=1080096
14/09/15 15:01:16 INFO mapred.JobClient:   Map-Reduce Framework
14/09/15 15:01:16 INFO mapred.JobClient:     Map output materialized bytes=31283
14/09/15 15:01:16 INFO mapred.JobClient:     Map input records=956
14/09/15 15:01:16 INFO mapred.JobClient:     Reduce shuffle bytes=31283
14/09/15 15:01:16 INFO mapred.JobClient:     Spilled Records=3154
14/09/15 15:01:16 INFO mapred.JobClient:     Map output bytes=46384
14/09/15 15:01:16 INFO mapred.JobClient:     Total committed heap usage (bytes)=2796748800
14/09/15 15:01:16 INFO mapred.JobClient:     CPU time spent (ms)=7520
14/09/15 15:01:16 INFO mapred.JobClient:     Map input bytes=34293
14/09/15 15:01:16 INFO mapred.JobClient:     SPLIT_RAW_BYTES=1715
14/09/15 15:01:16 INFO mapred.JobClient:     Combine input records=3435
14/09/15 15:01:16 INFO mapred.JobClient:     Reduce input records=1577
14/09/15 15:01:16 INFO mapred.JobClient:     Reduce input groups=820
14/09/15 15:01:16 INFO mapred.JobClient:     Combine output records=1577
14/09/15 15:01:16 INFO mapred.JobClient:     Physical memory (bytes) snapshot=3333201920
14/09/15 15:01:16 INFO mapred.JobClient:     Reduce output records=820
14/09/15 15:01:16 INFO mapred.JobClient:     Virtual memory (bytes) snapshot=11883048960
14/09/15 15:01:16 INFO mapred.JobClient:     Map output records=3435
PASSE !!!
-bash-4.1$ bin/hadoop jar WordCount.jar

=====

Thanks in advance for your help.

GYY

From: YIMEN YIMGA Gael ItecCsySat
Sent: Thursday 11 September 2014 12:13
To: 'user@hadoop.apache.org<mailto:user@hadoop.apache.org>'
Subject: RE: Error when executing a WordCount Program

Hello dear all,

Regarding the issue below, I succeded to fix the following warning

14/09/10 15:00:24 WARN mapred.JobClient: No job jar file set.  User classes may not be found.
See JobConf(Class) or JobConf#setJar(String).

But the main error is still persisting.

14/09/10 15:00:24 ERROR security.UserGroupInformation: PriviledgedActionException as:hadoop
cause:org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://latdevweb02:9000/home/hadoop/hadoop/input

I have even put in comment the following block in my code, but the error is still the same.

// config.set("fs.default.name<http://fs.default.name>", "hdfs://latdevweb02:9000/");
            // config.set("mapred.job.tracker", "latdevweb02:9001");

Please could you advise ????

Standing by…

GYY

From: YIMEN YIMGA Gael ItecCsySat
Sent: Wednesday 10 September 2014 15:10
To: user@hadoop.apache.org<mailto:user@hadoop.apache.org>
Subject: Error when executing a WordCount Program

Hello Hadoopers,

Here is the error, I’m facing when running WordCount example program written by myself.
Kind find attached the file of my WordCount program.
Below the error.

===========================================================================================================================================
-bash-4.1$ bin/hadoop jar WordCount.jar
Entr?e dans le programme MAIN !!!
14/09/10 15:00:24 WARN mapred.JobClient: Use GenericOptionsParser for parsing the arguments.
Applications should implement Tool for the same.
14/09/10 15:00:24 WARN mapred.JobClient: No job jar file set.  User classes may not be found.
See JobConf(Class) or JobConf#setJar(String).
14/09/10 15:00:24 INFO util.NativeCodeLoader: Loaded the native-hadoop library
14/09/10 15:00:24 WARN snappy.LoadSnappy: Snappy native library not loaded
14/09/10 15:00:24 INFO mapred.JobClient: Cleaning up the staging area hdfs://latdevweb02:9000/user/hadoop/.staging/job_201409101141_0001
14/09/10 15:00:24 ERROR security.UserGroupInformation: PriviledgedActionException as:hadoop
cause:org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://latdevweb02:9000/home/hadoop/hadoop/input
org.apache.hadoop.mapred.InvalidInputException: Input path does not exist: hdfs://latdevweb02:9000/home/hadoop/hadoop/input
        at org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:197)
        at org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:208)
        at org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:1081)
        at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:1073)
        at org.apache.hadoop.mapred.JobClient.access$700(JobClient.java:179)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:983)
        at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
        at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:910)
        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1353)
        at fr.societegenerale.bigdata.lactool.WordCountDriver.main(WordCountDriver.java:50)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:160)
-bash-4.1$
===========================================================================================================================================

Thanks in advance for your help.

Warm regards
GYY

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