Comments for alan said

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by amsal

amsal — Tue, 21 Feb 2012 07:51:00 +0000

hi..
i want to access hbase table from hadoop mapreduce….i m using windowsXP and cygwin
i m using hadoop-0.20.2 and hbase-0.92.0
hadoop cluster is working fine….i am able to run mapreduce wordcount successfully on 3 pc’s
hbase is also working …..i can cerate table from shell

i have tried many examples but they are not working….when i try to compile it using
javac Example.java

it gives error…..
org.apache.hadoop.hbase.client does not exist
org.apache.hadoop.hbase does not exist
org.apache.hadoop.hbase.io does not exist

please can anyone help me in this……
-plz give me some example code to access hbase from hadoop map reduce
-also guide me how should i compile and execute it

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by amsal

amsal — Tue, 21 Feb 2012 07:51:00 +0000

i have tried many examples but they are not working….when i try to compile it using
javac Example.java

it gives error…..
org.apache.hadoop.hbase.client does not exist
org.apache.hadoop.hbase does not exist
org.apache.hadoop.hbase.io does not exist

please can anyone help me in this……
-plz give me some example code to access hbase from hadoop map reduce
-also guide me how should i compile and execute it

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by amsal

amsal — Tue, 21 Feb 2012 07:50:00 +0000

i have tried many examples but they are not working….when i try to compile it using
javac Example.java

it gives error…..
org.apache.hadoop.hbase.client does not exist
org.apache.hadoop.hbase does not exist
org.apache.hadoop.hbase.io does not exist

please can anyone help me in this……
-plz give me some example code to access hbase from hadoop map reduce
-also guide me how should i compile and execute it

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by vartika singh

vartika singh — Wed, 18 Jan 2012 15:25:26 +0000

can i get hadoop to run on windows 7 x86??

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by Gomes

Gomes — Tue, 20 Dec 2011 08:43:31 +0000

I am getting teh following error on windows with cygwin and not sure where to set the classpath and make it work

bin/hadoop: line 297: /cygdrive/c/Program: No such file or directory
java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Exception in thread “main” -bash-4.1$

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by Zeke

Zeke — Mon, 14 Nov 2011 22:32:36 +0000

Yet another couple of newbie questions…

In the Hadoop configuration files changes section, the IP address that is shown is a standard or should that be changed?

Also, I get to the step to run,test the installation by issuing these commands in a Cygwin window “cd /usr/local/hadoop-0.21.0″ the “mkdir logsbin/hadoop namenode – format” and get the following error:

mkdir: cannot create directory ‘logsbin/hadoop’: No such file or directory.

I would think it would be a permissions issue but I have full local access to create directories. Any thoughts?

Thanks!

Comment on Workshop on Context-aware Retrieval and Recommendation by 2nd Workshop on Context-awareness in Retrieval and Recommendation « alan said

Mon, 10 Oct 2011 10:22:32 +0000

[...] [...]

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by B

Thu, 06 Oct 2011 18:22:18 +0000

@Igal @Amarjeet
try Hadoop 0.20.2; the issue has been reported as: https://issues.apache.org/jira/browse/HADOOP-7682

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by Igal

Igal — Mon, 15 Aug 2011 12:39:42 +0000

Hi,
I have the same issue as @Amarjeet Dangi was it resolved eventually?
Anyone knows how do solve it?

Thanks!

Comment on Hadoop + HBase + Cygwin + Windows 7 x64 by Berlin Brown

Berlin Brown — Sat, 13 Aug 2011 03:30:30 +0000

I am getting file permission issues I believe as well. Most of the dfs operations work but not the map reduce. It seems like the system can’t write to some directories.

http://stackoverflow.com/questions/7047945/hadoop-basic-examples-wordcount

Error:

2011-08-12 15:45:38,299 WARN org.apache.hadoop.mapred.TaskRunner:
attempt_201108121544_0001_m_000008_2 : Child Error
java.io.IOException: Task process exit with nonzero status of 127.
at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
2011-08-12 15:45:38,878 WARN org.apache.hadoop.mapred.TaskLog: Failed to
retrieve stdout log for task: attempt_201108121544_0001_m_000008_1
java.io.FileNotFoundException:
E:\projects\workspace_mar11\ParseLogCriticalErrors\lib\h\logs\userlogs\j
ob_201108121544_0001\attempt_201108121544_0001_m_000008_1\log.index (The
system cannot find the file specified)