hadoop-hdfs-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Stuti Awasthi <stutiawas...@hcl.com>
Subject Basic question on HDFS - MR
Date Tue, 18 Oct 2011 11:03:03 GMT
I have a very basic question on MR jobs. Suppose I have a cluster 3 nodes out of which 1 NN
and 3 DN.
I wanted to run an MR job so I placed the jar on 1 of the cluster machine and executed, it
runs fine.
Now my question is do I need to copy my MR job to every DN for distributed processing?
Placing MR jar on any of the machine does not make any difference , MR job will run in distributed



The contents of this e-mail and any attachment(s) are confidential and intended for the named
recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or
opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of
HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and
/ or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited.
If you have
received this email in error please delete it and notify the sender immediately. Before opening
any mail and
attachments please check them for viruses and defect.


View raw message