Hi Stefan, The USER_DATA line is a hangover from the way that these parameters used to be passed to the node. This line can safely be removed, since the scripts now pass the data in the USER_DATA_FILE as you rightly point out.
Tom On Thu, Dec 18, 2008 at 10:09 AM, Stefan Groschupf <s...@101tec.com> wrote: > Hi, > > can someone tell me what the variable USER_DATA in the launch-hadoop-master > is all about. > I cant see that it is reused in the script or any other script. > Isnt the way those parameters are passed to the nodes the USER_DATA_FILE ? > The line is: > USER_DATA="MASTER_HOST=master,MAX_MAP_TASKS=$MAX_MAP_TASKS,MAX_REDUCE_TASKS=$MAX_REDUCE_TASKS,COMPRESS=$COMPRESS" > Any hints? > Thanks, > Stefan > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Hadoop training and consulting > http://www.scaleunlimited.com > http://www.101tec.com > > > >
