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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Update of "NativeHadoop" by Arun C Murthy
Date Tue, 16 Jan 2007 03:34:59 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Lucene-hadoop Wiki" for change notification.

The following page has been changed by Arun C Murthy:

  It is fairly simple to use the native-hadoop libraries:
     * Take a look at the [#Platforms supported platforms]
-    * Either [http://www.apache.org/dyn/closer.cgi/lucene/hadoop/ download] the prebuilt
32-bit Linux native-hadoop libraries (available as part of hadoop distribution in lib/native)
or [#BuildNativeHadoop build] them yourself.
+    * Either [http://www.apache.org/dyn/closer.cgi/lucene/hadoop/ download] the prebuilt
'''32-bit i386-Linux''' native-hadoop libraries (available as part of hadoop distribution
in ''lib/native'') or [#BuildNativeHadoop build] them yourself.
     * Ensure you have either or/both of '''>zlib-1.2''' and '''>lzo2.0''' packages
for your platform installed; depending on your needs.
  That's it!
@@ -58, +58 @@

     * [http://www.zlib.net/ zlib-development package] (stable version >= 1.2.0)
     * [http://www.oberhumer.com/opensource/lzo/ lzo-development package] (stable version
>= 2.0)
+ Once you have the pre-requisites use the standard ''build.xml'' and pass along the '''compile.native'''
flag (set to '''true''') to build the native-hadoop library (not built by default):
+ [[BR]]
+ {{{$ ant -Dcompile.native=true <target>
+ }}}
+ That's it! You should see the newly-built native-hadoop library in:
+ [[BR]]
+ {{{$ build/native/<platform>/lib
+ }}}
+ where <platform> is combination of the system-properties: ''{os.name}-{os.arch}-{sun.arch.data.model}'';
for e.g. ''Linux-i386-32''
     * It is '''mandatory''' to have both the zlib and lzo development packages on the target
platform for ''building'' the native-hadoop library; however for deployment it is sufficient
to have install zlib ''or'' lzo if you wish to use only one of them.
     * It is necessary to have the correct 32/64 libraries of both zlib/lzo depending on the
32/64 bit jvm for the target platform for building/deployment of the native-hadoop library.

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