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From Sanjay Subramanian <Sanjay.Subraman...@wizecommerce.com>
Subject Re: MapReduce on Local FileSystem
Date Fri, 31 May 2013 16:09:38 GMT
Hi
Whats the data per hour or per day u r looking to put into HDFS ?

For dumping source data into HDFS there are again few options

Option 1
=======
Have parallel threads dumping raw data into HDFS from your source

Option 2
=======
Design how your Objects will look and write code to convert raw input files into Sequence
Files and then dump it into HDFS

The community may have more options….depends on your use case

Regards
sanjay


From: <Agarwal>, Nikhil <Nikhil.Agarwal@netapp.com<mailto:Nikhil.Agarwal@netapp.com>>
Reply-To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Date: Friday, May 31, 2013 12:24 AM
To: "user@hadoop.apache.org<mailto:user@hadoop.apache.org>" <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Subject: RE: MapReduce on Local FileSystem

Hi,

Thank you for your reply. One simple answer can be to reduce the time taken for ingesting
the data in HDFS.

Regards,
Nikhil

From: Sanjay Subramanian [mailto:Sanjay.Subramanian@wizecommerce.com]
Sent: Friday, May 31, 2013 12:50 PM
To: <user@hadoop.apache.org<mailto:user@hadoop.apache.org>>
Cc: user@hadoop.apache.org<mailto:user@hadoop.apache.org>
Subject: Re: MapReduce on Local FileSystem

Basic question. Why would u want to do that ? Also I think the Map R Hadoop distribution has
an NFS mountable HDFS
Sanjay

Sent from my iPhone

On May 30, 2013, at 11:37 PM, "Agarwal, Nikhil" <Nikhil.Agarwal@netapp.com<mailto:Nikhil.Agarwal@netapp.com>>
wrote:
Hi,

Is it possible to run MapReduce on multiple nodes using Local File system (file:///<file:///\\>)
 ?
I am able to run it in single node setup but in a multiple node setup the “slave” nodes
are not able to access the “jobtoken” file which is present in the Hadoop.tmp.dir in “master”
node.

Please let me know if it is possible to do this.

Thanks & Regards,
Nikhil

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