Hi Richard,

I think I fixed the previous problem...
How can I find why hadoop cannot connet to server??
I think I am doing everything correct

Now I am getting the following error...


  07/03/27 19:07:35 INFO ipc.Client: Retrying connect to server: 
and/205.12.20.1:9000. Already tried 10 time(s).
java.lang.RuntimeException: java.net.ConnectException: Connection refused
        at 
org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:247)
        at org.apache.hadoop.mapred.JobConf.setInputPath(JobConf.java:150)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:137)
        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.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)
        at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:143)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:40)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
Caused by: java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(Unknown Source)
        at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
        at java.net.PlainSocketImpl.connect(Unknown Source)
        at java.net.SocksSocketImpl.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at 
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:149)
        at org.apache.hadoop.ipc.Client.getConnection(Client.java:527)          

Richard Yang <[EMAIL PROTECTED]> έγραψε: 
the input directory doesn't exist... on HDFS

-----Original Message-----
From: Andreas Papadakis [mailto:[EMAIL PROTECTED]
Sent: Tue 3/27/2007 3:05 PM
To: hadoop-user@lucene.apache.org
Subject: Re: Hadoop for perl
 
Hi, I think HDFS now works but I have another problem... 

I execute the following command and I get the following error...

bin/hadoop jar hadoop-*-examples.jar wordcount 
/tmp/hadoop-a/dfs/tmp/tmp/LICENSE.txt /tmp/hadoop-a/dfs/1.txt
org.apache.hadoop.mapred.InvalidInputException: Input path doesnt exist : 
/tmp/hadoop-a/dfs/tmp/tmp/LICENSE.txt
        at 
org.apache.hadoop.mapred.InputFormatBase.validateInput(InputFormatBase.java:138)
        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:315)
        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:398)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:143)
        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.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)
        at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:143)
        at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:40)
        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:155)

I dont know why but the file is in that directory...

Thank you

Richard Yang  ??????: 
ok. this means HDFS is not functioning normally.  it could be a number of 
problems.  we need to examine files in 'logs' folder. 
1. reboot your machine.
2. go into the 'logs' folder and delete all log files (rm -rf *)
3. start Hadoop by start-all.sh

Hadoop would populate the 'log' folder again. 
in particular, could you post the contents of 
hadoop-***-namenode-***.log
hadoop-***-datanode-***.log

we should see the reason why HDFS does not start correctly in either, or both 
files.




-----Original Message-----
From: Andreas Papadakis [mailto:[EMAIL PROTECTED]
Sent: Sat 3/24/2007 10:50 PM
To: hadoop-user@lucene.apache.org
Subject: Re: RE: RE: Re: Hadoop for perl
 
I execute the command
bin/hadoop dfs -ls myfs

and I get 

Bad connection to FS. command aborted.

How can I fix this problem...?

Richard Yang  ??????: hello,

when you do 
bin/hadoop dfs -ls myfs
it should say
1 item(s) found
LICENSE.txt  

if you have no problem moving files/folder to and away from HDFS, this should 
indicate HDFS dfs is functioning normally. then,
how about
bin/hadoop jar hadoop-*-examples.jar wordcount myfs/LICENSE.txt out



and the following comman

bin/hadoop jar hadoop-*-examples.jar wordcount ./myfs/LICENSE.txt ./myFS/out 

I have already executed ./bin/start-all.sh and I have formatted ./myFS/


Richard Yang  ??????: 
By the error message, it looks like 'workingdirectory' is out of touch.  Is
HDFS dfs portion functioning normally??

Best Regards
 
Richard Yang
[EMAIL PROTECTED]
[EMAIL PROTECTED]
 
 
-----Original Message-----
From: Andreas Papadakis [mailto:[EMAIL PROTECTED] 
Sent: Friday, March 23, 2007 1:18 PM
To: hadoop-user@lucene.apache.org
Subject: Re: Re: Hadoop for perl

Is there any other way to use hadoop with perl?

I read that I can use it with python(using jython)... I tried the example
but jython cannot find the module org.apache.hadoop.fs...(I dont know much
about java). Anyone knows where can I find that module and where should I
place it??

Also, I tried the java example and I get too many errors....
I used the command
bin/hadoop jar hadoop-*-examples.jar wordcount  mydfs/LICENSE.txt mydfs/a

but I get the following errors:

java.lang.RuntimeException: java.net.SocketTimeoutException: timed out
waiting for rpc response
        at
org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:247)
        at org.apache.hadoop.mapred.JobConf.setInputPath(JobConf.java:150)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:137)
        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.ProgramDriver$ProgramDescription.invoke(ProgramDriver
.java:71)
        at
org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:143)
        at
org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:40)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
Caused by: java.net.SocketTimeoutException: timed out waiting for rpc
response
        at org.apache.hadoop.ipc.Client.call(Client.java:469)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:164)
        at org.apache.hadoop.dfs.$Proxy0.getProtocolVersion(Unknown Source)
        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:248)
        at org.apache.hadoop.dfs.DFSClient.(DFSClient.java:106)
        at
org.apache.hadoop.dfs.DistributedFileSystem.initialize(DistributedFileSystem
.java:65)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:160)
        at org.apache.hadoop.fs.FileSystem.getNamed(FileSystem.java:119)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:91)
        at
org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:243)

Anyone can help me???
Thank you

Erik Hetzner  ??????: At Fri, 23 Mar 2007 20:58:38
+0100,
Maximilian Sch??fmann  wrote:
>
> > I want to ask if there is an implementation of Hadoop for perl...or
> > something similar to Hadoop for python
>
> Well, there is one for Ruby - at least the MapReduce part: Starfish
>
> http://rufy.com/starfish/doc/

Starfish isn???t (or wasn???t last time I
looked) really much like
MapReduce at all.

best,
Erik Hetzner


   
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???????? ?????? ????????? ???? ??? ??????????? ????????? 
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Richard Yang  ??????: hello,

when you do 
bin/hadoop dfs -ls myfs
it should say
1 item(s) found
LICENSE.txt  

if you have no problem moving files/folder to and away from HDFS, this should 
indicate HDFS dfs is functioning normally. then,
how about
bin/hadoop jar hadoop-*-examples.jar wordcount myfs/LICENSE.txt out



and the following comman

bin/hadoop jar hadoop-*-examples.jar wordcount ./myfs/LICENSE.txt ./myFS/out 

I have already executed ./bin/start-all.sh and I have formatted ./myFS/


Richard Yang  ??????: 
By the error message, it looks like 'workingdirectory' is out of touch.  Is
HDFS dfs portion functioning normally??

Best Regards
 
Richard Yang
[EMAIL PROTECTED]
[EMAIL PROTECTED]
 
 
-----Original Message-----
From: Andreas Papadakis [mailto:[EMAIL PROTECTED] 
Sent: Friday, March 23, 2007 1:18 PM
To: hadoop-user@lucene.apache.org
Subject: Re: Re: Hadoop for perl

Is there any other way to use hadoop with perl?

I read that I can use it with python(using jython)... I tried the example
but jython cannot find the module org.apache.hadoop.fs...(I dont know much
about java). Anyone knows where can I find that module and where should I
place it??

Also, I tried the java example and I get too many errors....
I used the command
bin/hadoop jar hadoop-*-examples.jar wordcount  mydfs/LICENSE.txt mydfs/a

but I get the following errors:

java.lang.RuntimeException: java.net.SocketTimeoutException: timed out
waiting for rpc response
        at
org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:247)
        at org.apache.hadoop.mapred.JobConf.setInputPath(JobConf.java:150)
        at org.apache.hadoop.examples.WordCount.main(WordCount.java:137)
        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.ProgramDriver$ProgramDescription.invoke(ProgramDriver
.java:71)
        at
org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:143)
        at
org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:40)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
Caused by: java.net.SocketTimeoutException: timed out waiting for rpc
response
        at org.apache.hadoop.ipc.Client.call(Client.java:469)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:164)
        at org.apache.hadoop.dfs.$Proxy0.getProtocolVersion(Unknown Source)
        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:248)
        at org.apache.hadoop.dfs.DFSClient.(DFSClient.java:106)
        at
org.apache.hadoop.dfs.DistributedFileSystem.initialize(DistributedFileSystem
.java:65)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:160)
        at org.apache.hadoop.fs.FileSystem.getNamed(FileSystem.java:119)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:91)
        at
org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:243)

Anyone can help me???
Thank you

Erik Hetzner  ??????: At Fri, 23 Mar 2007 20:58:38
+0100,
Maximilian Sch??fmann  wrote:
>
> > I want to ask if there is an implementation of Hadoop for perl...or
> > something similar to Hadoop for python
>
> Well, there is one for Ruby - at least the MapReduce part: Starfish
>
> http://rufy.com/starfish/doc/

Starfish isn???t (or wasn???t last time I
looked) really much like
MapReduce at all.

best,
Erik Hetzner


   
---------------------------------
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 ?????????? ?? ?????????? ???? ???? (spam); ?? Yahoo! Mail ???????? ???
???????? ?????? ????????? ???? ??? ??????????? ????????? 
 http://login.yahoo.com/config/mail?.intl=gr 




   
---------------------------------
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 ?????????? ?? ?????????? ???? ???? (spam); ?? Yahoo! Mail ???????? ??? 
???????? ?????? ????????? ???? ??? ??????????? ????????? 
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???????? ?????? ????????? ???? ??? ??????????? ????????? 
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---------------------------------
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 ?????????? ?? ?????????? ???? ???? (spam); ?? Yahoo! Mail ???????? ??? 
???????? ?????? ????????? ???? ??? ??????????? ????????? 
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