What is the purpose of the following two configuration parameters in mapred-size.xml? What are recommended values?
I also found these two books:
And both are basically saying that mapreduce.input.fileinputformat.split.minsize < dfs.blocksize < ...maxsize
Smartsense recommended: 105MB (minsize) and 270MB (maxsize)
Our current block setting is 64MB, although Smartsense recommended 128MB blocksize, so it kind of fits the min/max recommendations as well as the descriptions from the books.