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List:       hadoop-user
Subject:    RE: org.apache.hadoop.fs.DF vs Windows
From:       "Andrew Newman" <anewman () itee ! uq ! edu ! au>
Date:       2007-06-24 23:06:06
Message-ID: 007001c7b6b4$3ea72b60$bbf58220$ () uq ! edu ! au
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We did a similar thing recently (setting up JSW for Windows).  We had:
wrapper.java.library.path.1=bin

Where the bin directory (it contains the JSW libraries like
wrapper-windows-x86-32.dll and Cygwin files for df) is under the root (which
contains the configuration and JSW executables).

The files required by df are:
- df.exe
- cygiconv-2.dll
- cygintl-8.dll
- cygwin1.dll

> -----Original Message-----
> From: Albert Strasheim [mailto:fullung@gmail.com]
> Sent: Monday, 25 June 2007 8:49 AM
> To: hadoop-user@lucene.apache.org
> Subject: Re: org.apache.hadoop.fs.DF vs Windows
> 
> Turns out Commons IO too uses df on most platforms and dir /-c on
> Windows.
> As a result, it kan only report the free space.
> 
> It seems the GnuWin32 coreutils includes a df command which doesn't
> depend
> on Cygwin.
> 
> http://gnuwin32.sourceforge.net/packages/coreutils.htm
> 
> I'll see if I can convince JSW to set the environment so that DF can
> find
> this program.
> 
> Cheers,
> 
> Albert
> 
> ----- Original Message -----
> From: "Albert Strasheim" <fullung@gmail.com>
> To: <hadoop-user@lucene.apache.org>
> Sent: Monday, June 25, 2007 12:18 AM
> Subject: org.apache.hadoop.fs.DF vs Windows
> 
> 
> > The next problem seems to be that DataNode is trying to run the df
> > command, which is rather system specific.
> >
> > Java 6 added some new methods to handle this issue, but I'm assuming
> > Hadoop wants to stay compatible with older versions of the JDK. In
> that
> > case, could FileSystemUtils from Commons IO be used instead of the df
> > hack?
> >
> > http://jakarta.apache.org/commons/io/api-
> release/index.html?org/apache/commons/io/FileSystemUtils.html




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