Hi
We just have discussed about the similar problem(the title is Increase the
number of mappers in PM mode),as I thought.
First of all you can not setup the the number of mappers.however you change the
mapred.max.split.size, or mapred.min.split.size ,the number of the mapper will
change autom
please check parameter "mapred.map.tasks" is equals to 2?
发件人: Yanbo Liang [yanboha...@gmail.com]
发送时间: 2013年3月14日 23:11
收件人: user@hadoop.apache.org
主题: Re: Why hadoop is spawing two map over file size 1.5 KB ?
I guess may be one of them is the speculative executio
