Is there a startup for contract mapreduce making its own mapred.system.dir ?
Also, it seems that the jobtracker can startup even if this directory was not
created / doesn't exist - I'm thinking that if that's the case, JT should fail
up front.
On 2/12/10 8:40 AM, Edson Ramiro wrote:
Hi all,
I'm setting up a Hadoop Cluster and some doubts have
arisen about hadoop configuration.
The Hadoop Cluster Setup [1] says that the mapred.system.dir must
be in the HDFS and be accessible from both the server and clients.
Where
blk_4546857325993894516 will be stored
there. These blk files represent chunks of real complete user-accessible
files in HDFS-proper.
mapred.system.dir is a filesystem path like /system/mapred which is served
by the HDFS, where files used by MapReduce appear. The purpose of the config
file comment is to let you know
