Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Plain View
HDFS >> mail # user >> What is the preferred way to pass a small number of configuration parameters to a mapper or reducer


+
Kshiva Kps 2012-12-28, 08:17
+
Ted Dunning 2012-12-28, 21:10
+
Michel Segel 2012-12-28, 22:19
Copy link to this message
-
Re: What is the preferred way to pass a small number of configuration parameters to a mapper or reducer
Yes. another big data, data scientist, no ops, devops, cloud computing
specialist is born. Thank goodness we have multiple choice tests to
identify the best coders and administrators.

On Friday, December 28, 2012, Michel Segel <[EMAIL PROTECTED]>
wrote:
> Sounds like someone is cheating on a test...
>
> Sent from a remote device. Please excuse any typos...
> Mike Segel
> On Dec 28, 2012, at 3:10 PM, Ted Dunning <[EMAIL PROTECTED]> wrote:
>
> Answer B sounds pathologically bad to me.
> A or C are the only viable options.
> Neither B nor D work.  B fails because it would be extremely hard to get
the right records to the right components and because it pollutes data
input with configuration data.  D fails because statics don't work in
parallel programs.
>
> On Fri, Dec 28, 2012 at 12:17 AM, Kshiva Kps <[EMAIL PROTECTED]> wrote:
>
> Which one is current ..
>
> What is the preferred way to pass a small number of configuration
parameters to a mapper or reducer?
>
>
>
>
>
> A.  As key-value pairs in the jobconf object.
>
>
>
> B.  As a custom input key-value pair passed to each mapper or reducer.
>
>
+
Jay Vyas 2012-12-29, 01:29
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB