[Hadoop-common-user] Few Queries..!!!

[Hadoop-common-user] Few Queries..!!!

	Sugandha Naolekar
	Jun 5, 2009 at 7:53 am

Hello!

Placing any kind of data into HDFS and then getting it back, can this
activity be fast? Also, the node of which I have to place the data in HDFS,
is a remote node. So then, will I have to use RPC mechnaism or simply cna
get the locla filesystem of that node and do the things?

--
Regards!
Sugandha

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Tim robertson: Answers inline Using the HDFS interface you would put the data in (not dissimilar to FTP'ing it to a server) Copy it out of HDFS onto the local file system - it is pretty much like copying from a mounted drive to a different mounted drive, just that you go through a hadoop command (distcp) and not a native command (cp) No. You could write a java program or use command line utilities. Maybe you can do it in other languages but I only do Java... You don't write MR code for putting and retrieving

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group	common-user @
categories	hadoop
posted	Jun 5, '09 at 7:31a
active	Jun 10, '09 at 5:27p
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website	hadoop.apache.org...
irc	#hadoop

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[Hadoop-common-user] Few Queries..!!!

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