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| <body> |
| |
| <p>A distributed implementation of {@link |
| org.apache.hadoop.fs.FileSystem}. This is loosely modelled after |
| Google's <a href="http://labs.google.com/papers/gfs.html">GFS</a>.</p> |
| |
| <p>The most important difference is that unlike GFS, Hadoop DFS files |
| have strictly one writer at any one time. Bytes are always appended |
| to the end of the writer's stream. There is no notion of "record appends" |
| or "mutations" that are then checked or reordered. Writers simply emit |
| a byte stream. That byte stream is guaranteed to be stored in the |
| order written.</p> |
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