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From Sandy <snickerdoodl...@gmail.com>
Subject Re: Compiling Word Count in C++ : Hadoop Pipes
Date Wed, 25 Jun 2008 21:31:17 GMT
My apologies. I had thought I had made that change already.

Regardless, I still get the same error:
$ ant -Dcompile.c++=yes compile-c++-examples
Unable to locate tools.jar. Expected to find it in
/usr/java/jre1.6.0_06/lib/tools.jar
Buildfile: build.xml

init:
    [touch] Creating /tmp/null265867151
   [delete] Deleting: /tmp/null265867151
     [exec] svn: '.' is not a working copy
     [exec] svn: '.' is not a working copy

check-c++-makefiles:

create-c++-examples-pipes-makefile:

create-c++-pipes-makefile:

create-c++-utils-makefile:

BUILD FAILED
/home/sjm/Desktop/hadoop-0.16.4/build.xml:947: Execute failed:
java.io.IOException: Cannot run program
"/home/sjm/Desktop/hadoop-0.16.4/src/c++/utils/configure" (in directory
"/home/sjm/Desktop/hadoop-0.16.4/build/c++-build/Linux-i386-32/utils"):
java.io.IOException: error=13, Permission denied

Total time: 1 second

My .bash_profile now contains the line
JAVA_HOME=/usr/java/jdk1.6.0_06; export JAVA_HOME

I then did
source .bash_profile
conf/hadoop-env.sh

Is there anything else I need to do to make the changes take effect?

Thanks again for the assistance.

-SM

On Wed, Jun 25, 2008 at 3:43 PM, lohit <lohit_bv@yahoo.com> wrote:

> may be set it to JDK home? I have set it to my JDK.
>
> ----- Original Message ----
> From: Sandy <snickerdoodle08@gmail.com>
> To: core-user@hadoop.apache.org
> Sent: Wednesday, June 25, 2008 12:31:18 PM
> Subject: Re: Compiling Word Count in C++ : Hadoop Pipes
>
> I am under the impression that it already is. As I posted in my original
> e-mail, here are the declarations in hadoop-env.sh and my .bash_profile
>
> My hadoop-env.sh file looks something like:
> # Set Hadoop-specific environment variables here.
>
> # The only required environment variable is JAVA_HOME.  All others are
> # optional.  When running a distributed configuration it is best to
> # set JAVA_HOME in this file, so that it is correctly defined on
> # remote nodes.
>
> # The java implementation to use.  Required.
> # export JAVA_HOME=$JAVA_HOME
>
>
> and my .bash_profile file has this line in it:
> JAVA_HOME=/usr/java/jre1.6.0_06; export JAVA_HOME
> export PATH
>
>
> Is there a different way I'm supposed to set the JAVA_HOME environment
> variable?
>
> Much thanks,
>
> -SM
> On Wed, Jun 25, 2008 at 3:22 PM, Zheng Shao <zshao@facebook.com> wrote:
>
> > You need to set JAVA_HOME to your jdk directory (instead of jre).
> > This is required by ant.
> >
> > Zheng
> > -----Original Message-----
> > From: Sandy [mailto:snickerdoodle08@gmail.com]
> > Sent: Wednesday, June 25, 2008 11:22 AM
> > To: core-user@hadoop.apache.org
> > Subject: Re: Compiling Word Count in C++ : Hadoop Pipes
> >
> > I'm not sure how this answers my question. Could you be more specific? I
> > still am getting the above error when I type this commmand in. To
> > summarize:
> >
> > With my current setup, this occurs:
> > $ ant -Dcompile.c++=yes compile-c++-examples
> > Unable to locate tools.jar. Expected to find it in
> > /usr/java/jre1.6.0_06/lib/tools.jar
> > Buildfile: build.xml
> >
> > init:
> >    [touch] Creating /tmp/null2044923713
> >   [delete] Deleting: /tmp/null2044923713
> >     [exec] svn: '.' is not a working copy
> >     [exec] svn: '.' is not a working copy
> >
> > check-c++-makefiles:
> >
> > create-c++-examples-pipes-makefile:
> >    [mkdir] Created dir:
> > /home/sjm/Desktop/hadoop-0.16.4/build/c++-build/Linux-i386-32/examples/p
> > ipes
> >
> > BUILD FAILED
> > /home/sjm/Desktop/hadoop-0.16.4/build.xml:987: Execute failed:
> > java.io.IOException: Cannot run program
> > "/home/sjm/Desktop/hadoop-0.16.4/src/examples/pipes/configure" (in
> > directory
> > "/home/sjm/Desktop/hadoop-0.16.4/build/c++-build/Linux-i386-32/examples/
> > pipes"):
> > java.io.IOException: error=13, Permission denied
> >
> > Total time: 1 second
> >
> > -----
> >
> > If I copy the tools.jar file located in my jdk's lib folder, i get the
> > error
> > message I printed in the previous message.
> >
> > Could someone please tell me or suggest to me what I am doing wrong?
> >
> > Thanks,
> >
> > -SM
> >
> > On Wed, Jun 25, 2008 at 1:53 PM, lohit <lohit_bv@yahoo.com> wrote:
> >
> > > ant -Dcompile.c++=yes compile-c++-examples
> > > I picked it up from build.xml
> > >
> > > Thanks,
> > > Lohit
> > >
> > > ----- Original Message ----
> > > From: Sandy <snickerdoodle08@gmail.com>
> > > To: core-user@hadoop.apache.org
> > > Sent: Wednesday, June 25, 2008 10:44:20 AM
> > > Subject: Compiling Word Count in C++ : Hadoop Pipes
> > >
> > > Hi,
> > >
> > > I am currently trying to get Hadoop Pipes working. I am following the
> > > instructions at the hadoop wiki, where it provides code for a C++
> > > implementation of Word Count (located here:
> > > http://wiki.apache.org/hadoop/C++WordCount?highlight=%28C%2B%2B%29)
> > >
> > > I am having some trouble parsing the instructions. What should the
> > file
> > > containing the new word count program be called? "examples"?
> > >
> > > If I were to call the file "example" and type in the following:
> > > $ ant -Dcompile.c++=yes example
> > > Buildfile: build.xml
> > >
> > > BUILD FAILED
> > > Target `example' does not exist in this project.
> > >
> > > Total time: 0 seconds
> > >
> > >
> > > If I try and compile with "examples" as stated on the wiki, I get:
> > > $ ant -Dcompile.c++=yes examples
> > > Buildfile: build.xml
> > >
> > > clover.setup:
> > >
> > > clover.info:
> > >     [echo]
> > >     [echo]      Clover not found. Code coverage reports disabled.
> > >     [echo]
> > >
> > > clover:
> > >
> > > init:
> > >    [touch] Creating /tmp/null810513231
> > >   [delete] Deleting: /tmp/null810513231
> > >     [exec] svn: '.' is not a working copy
> > >     [exec] svn: '.' is not a working copy
> > >
> > > record-parser:
> > >
> > > compile-rcc-compiler:
> > >    [javac] Compiling 29 source files to
> > > /home/sjm/Desktop/hadoop-0.16.4/build/classes
> > >
> > > BUILD FAILED
> > > /home/sjm/Desktop/hadoop-0.16.4/build.xml:241: Unable to find a javac
> > > compiler;
> > > com.sun.tools.javac.Main is not on the classpath.
> > > Perhaps JAVA_HOME does not point to the JDK
> > >
> > > Total time: 1 second
> > >
> > >
> > >
> > > I am a bit puzzled by this. Originally I got the error that tools.jar
> > was
> > > not found, because it was looking for it under
> > > /usr/java/jre1.6.0_06/lib/tools.jar . There is a tools.jar under
> > > /usr/java/jdk1.6.0_06/lib/tools.jar. If I copy this file over to the
> > jre
> > > folder, that message goes away and its replaced with the above
> > message.
> > >
> > > My hadoop-env.sh file looks something like:
> > > # Set Hadoop-specific environment variables here.
> > >
> > > # The only required environment variable is JAVA_HOME.  All others are
> > > # optional.  When running a distributed configuration it is best to
> > > # set JAVA_HOME in this file, so that it is correctly defined on
> > > # remote nodes.
> > >
> > > # The java implementation to use.  Required.
> > > # export JAVA_HOME=$JAVA_HOME
> > >
> > >
> > > and my .bash_profile file has this line in it:
> > > JAVA_HOME=/usr/java/jre1.6.0_06; export JAVA_HOME
> > > export PATH
> > >
> > >
> > > Furthermore, if I go to the command line and type in javac -version, I
> > get:
> > > $ javac -version
> > > javac 1.6.0_06
> > >
> > >
> > > I also had no problem getting through the hadoop word count map reduce
> > > tutorial in Java. It was able to find my java compiler fine. Could
> > someone
> > > please point me in the right direction? Also, since it is an sh file,
> > > should
> > > that export line in hadoop-env.sh really start with a hash sign?
> > >
> > > Thank you in advance for your assistance.
> > >
> > > -SM
> > >
> > >
> >
>
>

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