Hi You can change the replication factor of an existing directory using '-setrep'
http://hadoop.apache.org/common/docs/r0.20.0/hdfs_shell.html#setrep The below command will recursively set the replication factor to 1 for all files within the given directory '/user' hadoop fs -setrep -w 1 -R /user On Wed, Sep 5, 2012 at 11:39 PM, Uddipan Mukherjee < uddipan_mukher...@infosys.com> wrote: > Hi, **** > > **** > > We have a requirement where we have change our Hadoop Cluster's > Replication Factor without restarting the Cluster. We are running our > Cluster on Amazon EMR.**** > > **** > > Can you please suggest the way to achieve this? Any pointer to this will > be very helpful.**** > > **** > > Thanks And Regards**** > > Uddipan Mukherjee**** > > **************** CAUTION - Disclaimer ***************** > This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely > for the use of the addressee(s). If you are not the intended recipient, please > notify the sender by e-mail and delete the original message. Further, you are > not > to copy, disclose, or distribute this e-mail or its contents to any other > person and > any such actions are unlawful. This e-mail may contain viruses. Infosys has > taken > every reasonable precaution to minimize this risk, but is not liable for any > damage > you may sustain as a result of any virus in this e-mail. You should carry out > your > own virus checks before opening the e-mail or attachment. Infosys reserves the > right to monitor and review the content of all messages sent to or from this > e-mail > address. Messages sent to or from this e-mail address may be stored on the > Infosys e-mail system. > ***INFOSYS******** End of Disclaimer ********INFOSYS*** > >