Here’s an example of running distcp (actually in this case s3distcp, but it’s
about the same, just new DistCp()) from java:
ToolRunner.run(getConf(), new S3DistCp(), new String[] {
"--src", "/src/dir/",
"--srcPattern", ".*(itemtable)-r-[0-9]*.*",
"--dest", "s3://yourbucket/results/",
"--s3Endpoint", "s3.amazonaws.com" });
From: Joep Rottinghuis [mailto:[email protected]]
Sent: Saturday, December 29, 2012 2:51 PM
To: [email protected]
Cc: [email protected]; [email protected]
Subject: Re: Fastest way to transfer files
Not sure why you are implying a contradiction when you say: "... distcp is
useful _but_ you want to do 'it' in java..."
First of all distcp _is_ written in Java.
You can call distcp or any other MR job from Java just fine.
Cheers,
Joep
Sent from my iPhone
On Dec 28, 2012, at 12:01 PM, burakkk <[email protected]> wrote:
Hi,
I have two different hdfs cluster. I need to transfer files between these
environments. What's the fastest way to transfer files for that situation?
I've researched about it. I found distcp command. It's useful but I want to do
in java so is there any way to do this?
Is there any way to transfer files chunk by chunk from one hdfs cluster to
another one or is there any way to implement a process using chunks without
whole file?
Thanks
Best Regards...
--
BURAK ISIKLI | http://burakisikli.wordpress.com
