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The following page has been changed by ChristopheTaton: http://wiki.apache.org/hadoop/NativeHadoop ------------------------------------------------------------------------------ ==== Native Hadoop Libraries ==== Hadoop has the following native components: - * [http://www.zlib.net zlib] [http://lucene.apache.org/hadoop/api/org/apache/hadoop/io/compress/CompressionCodec.html compression codec] - Reworked zlib codec using nio's direct-buffers which gives us 60%-70% speedup. (more details [http://issues.apache.org/jira/browse/HADOOP-538 here]) + * [http://www.zlib.net zlib] [http://hadoop.apache.org/core/api/org/apache/hadoop/io/compress/CompressionCodec.html compression codec] - Reworked zlib codec using nio's direct-buffers which gives us 60%-70% speedup. (more details [http://issues.apache.org/jira/browse/HADOOP-538 here]) - * [http://www.oberhumer.com/opensource/lzo/ lzo] [http://lucene.apache.org/hadoop/api/org/apache/hadoop/io/compress/CompressionCodec.html compression codec] - Implemented due to lack of java bindings for lzo . (more details [http://issues.apache.org/jira/browse/HADOOP-851 here]) + * [http://www.oberhumer.com/opensource/lzo/ lzo] [http://hadoop.apache.org/core/api/org/apache/hadoop/io/compress/CompressionCodec.htmlapi/org/apache/hadoop/io/compress/CompressionCodec.html compression codec] - Implemented due to lack of java bindings for lzo . (more details [http://issues.apache.org/jira/browse/HADOOP-851 here]) ==== Usage ==== @@ -35, +35 @@ [[Anchor(Platforms)]] ==== Supported Platforms ==== - Native-hadoop library is supported for '''*nix''' platforms only. Unfortunately it is known ''not to work'' on [http://www.cygwin.com Cygwin] and [http://www.apple.com/macosx Mac OS X] and has mainly been used on the Linux platform. [http://wiki.apache.org/lucene-hadoop/HowToContribute Patches] from anyone interested in getting them working on Cygwin/MacOSX are welcome! + Native-hadoop library is supported for '''*nix''' platforms only. Unfortunately it is known ''not to work'' on [http://www.cygwin.com Cygwin] and [http://www.apple.com/macosx Mac OS X] and has mainly been used on the Linux platform. [http://wiki.apache.org/hadoop/HowToContribute Patches] from anyone interested in getting them working on Cygwin/MacOSX are welcome! It has been tested on the following Linux distributions: * [http://www.redhat.com/rhel/ RHEL4]/[http://fedora.redhat.com/ Fedora]
