Paul Sheer wrote:
I have the requirement to use Hadoop with case-insensitivity and case-preservation ala Windows.
I think you may have difficultly convincing folks that Hadoop should directly support this mode of operation, and it's also a bad idea to run a hacked version of HDFS, since that will be hard to maintain.
The safest and simplest way to support this might be to layer it on top of the standard API. You can implement a FilterFileSystem that, when opening files or listing directories, uses case-insensitive comparisons. So, to open "/foo/bar" you'd first list "/" looking for subdirectories which case-insensitively match "foo", then, if one is found, list it looking for a file which case-insensitively matches "bar". Could this suffice?
Doug
