Pass directories not files to hadoop-streaming?

Question

In my job, I have the need to parse many historical logsets. Individual customers (there are thousands) may have hundreds of log subdirectories broken out by date. For example

Answer 1

I guess you need to investigate writing a custom InputFormat which you can pass the root directory too, it will create a split for each customer, and then the record reader for each split will do the directory walk and push the file contents to your mappers

Answer 2

Hadoop supports input paths to be a regular expression. I haven't experimented with a lot of complex regex, but the simple placeholders ? and * does work.

So in your case I think if you have the following as your input path it will work :

file:///mnt/logs/Customer_Name/*/*

The last asterisk might not be needed as all the files in the final directory are automatically added as input path.