Too many mappers - Mahout lda

[Mohammed Al khooja <mk...@gmail.com>]

Hi,

I'm running lda on 123 file-parts (Block size is 128 MB).  However, mahout
is creating 1555 mappers. I tried setting mapred.map.tasks in
mapred-site.xml but I guess Mahout overrides it.

Does anything has to do with block size or splitting size  ?

Thanks.

-- 

M.khouja