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Re: Modify the number of map tasks
have you please commented the configuration of hadoop on cluster

thanks
2012/12/12 Mohammad Tariq <[EMAIL PROTECTED]>

> You are always welcome. If you still need any help, you can go here :
> http://cloudfront.blogspot.in/2012/07/how-to-configure-hadoop.html
> I have outlined the entire process here along with few small(but
> necessary) explanations.
>
> Regards,
>     Mohammad Tariq
>
>
>
> On Wed, Dec 12, 2012 at 7:31 PM, imen Megdiche <[EMAIL PROTECTED]>wrote:
>
>> thank you very much you re awsome.
>>
>> Fixed
>>
>>
>> 2012/12/12 Mohammad Tariq <[EMAIL PROTECTED]>
>>
>>> Uncomment the property in core-site.xml. That is a must. After doing
>>> this  you have to restart the daemons?
>>>
>>> Regards,
>>>     Mohammad Tariq
>>>
>>>
>>>
>>> On Wed, Dec 12, 2012 at 7:08 PM, imen Megdiche <[EMAIL PROTECTED]>wrote:
>>>
>>>> I changed the files
>>>> now when i run i have this response :
>>>>
>>>> 12/12/12 14:37:33 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 0 time(s).
>>>> 12/12/12 14:37:34 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 1 time(s).
>>>> 12/12/12 14:37:35 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 2 time(s).
>>>> 12/12/12 14:37:36 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 3 time(s).
>>>> 12/12/12 14:37:37 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 4 time(s).
>>>> 12/12/12 14:37:38 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 5 time(s).
>>>> 12/12/12 14:37:39 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 6 time(s).
>>>> 12/12/12 14:37:40 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 7 time(s).
>>>> 12/12/12 14:37:41 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 8 time(s).
>>>> 12/12/12 14:37:42 INFO ipc.Client: Retrying connect to server:
>>>> localhost/127.0.0.1:9001. Already tried 9 time(s).
>>>> Exception in thread "main" java.net.ConnectException: Call to localhost/
>>>> 127.0.0.1:9001 failed on connection exception:
>>>> java.net.ConnectException: Connexion refusée
>>>>     at org.apache.hadoop.ipc.Client.wrapException(Client.java:1099)
>>>>     at org.apache.hadoop.ipc.Client.call(Client.java:1075)
>>>>     at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
>>>>     at org.apache.hadoop.mapred.$Proxy1.getProtocolVersion(Unknown
>>>> Source)
>>>>     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
>>>>     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)
>>>>     at
>>>> org.apache.hadoop.mapred.JobClient.createRPCProxy(JobClient.java:480)
>>>>     at org.apache.hadoop.mapred.JobClient.init(JobClient.java:474)
>>>>     at org.apache.hadoop.mapred.JobClient.<init>(JobClient.java:457)
>>>>     at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1260)
>>>>     at org.myorg.WordCount.run(WordCount.java:115)
>>>>     at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>>>>     at org.myorg.WordCount.main(WordCount.java:120)
>>>>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>>>     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
>>>>     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
>>>>     at java.lang.reflect.Method.invoke(Unknown Source)
>>>>     at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
>>>> Caused by: java.net.ConnectException: Connexion refusée
>>>>     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>>>>     at sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
>>>>     at
>>>> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>>>>     at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)
>>>>     at
>>>> org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:434)