Hi Manoj, Reply inline.
On Mon, Aug 13, 2012 at 3:42 PM, Manoj Babu <manoj...@gmail.com> wrote: > Hi All, > > Normal Hadoop job submission process involves: > > Checking the input and output specifications of the job. > Computing the InputSplits for the job. > Setup the requisite accounting information for the DistributedCache of the > job, if necessary. > Copying the job's jar and configuration to the map-reduce system directory > on the distributed file-system. > Submitting the job to the JobTracker and optionally monitoring it's status. > > I have a doubt in 4th point of job execution flow could any of you explain > it? > > What is job's jar? The job.jar is the jar you supply via "hadoop jar <jar>". Technically though, it is the jar pointed by JobConf.getJar() (Set via setJar or setJarByClass calls). > Is it job's jar is the one we submitted to hadoop or hadoop will build based > on the job configuration object? It is the former, as explained above. -- Harsh J
