The naming differs, Dell call it edge node, Cloudera call it gateway.
In the end, it's just a machine which has hadoop libraries and ecosystem
deployed to it and working as a client.
Building this node is similar to the rest of the nodes except that it
doesn't run services, you can deploy pig, oozie, hue, hdfs and yarn and
submit jobs to your cluster from this node.
I guess you came across this link, but it's worth mentioning
http://www.dummies.com/how-to/content/edge-nodes-in-hadoop-clusters.html
On 01/20/2015 10:15 AM, Cao Yi wrote:
thank you, Ahmed! I have another question: how to build an edge node
and how to use it? can you refer some docs?
PS, I searched and found so many pages, some called it "client node",
but no page tells the details of building an edge node, and how to use it.
Best Regards,
Iridium
On Wed, Jan 14, 2015 at 11:05 PM, Ahmed Ossama <[email protected]
<mailto:[email protected]>> wrote:
The node that the project will be deployed on should have the same
configuration as the cluster, and hadoop executables as well. It
doesn't have to be one of the cluster nodes.
This node is typically called a gateway or edge node, where it
have all the client programs (hadoop execs, pig, etc...) and you
use this node to submit jobs to the cluster.
The executable use the configuration to know where to submit jobs
and where is your hdfs nn located and so on.
On 01/14/2015 04:39 PM, Cao Yi wrote:
The program will be used in product environment.
Does you mean that the program must be deployed on any node of
the cluster?
I have some experience in operating database, I can
query/edit/add/remove data on the OS witch the database installed
on, or operate from the other machine remotely. Can I use Hadoop
remotely as to use database in a similar way?
Best Regards,
Iridium
On Wed, Jan 14, 2015 at 9:15 PM, unmesha sreeveni
<[email protected] <mailto:[email protected]>> wrote:
Your data wont get splitted. so your program runs as single
mapper and single reducer. And your intermediate data is not
shuffeld and sorted, But u can use this for debuging
On Jan 14, 2015 2:04 PM, "Cao Yi" <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I write some mapreduce code in my project /my_prj/.
/my_prj /will be deployed on the machine which is not a
node of the cluster.
how does /my_prj/ to run a mapreduce job in this case?
thank you!
Best Regards,
Iridium
--
Regards,
Ahmed Ossama
--
Regards,
Ahmed Ossama
