ue, Mar 12, 2013 at 6:49 AM, Jane Wayne wrote:
>
>> hi,
>>
>> i need to know how to resolve conflicts with jar dependencies.
>>
>> * first, my job requires Jackson JSON-processor v1.9.11.
>> * second, the hadoop cluster has Jackson JSON-processor v1.5.2. the
>&
hi,
i need to know how to resolve conflicts with jar dependencies.
* first, my job requires Jackson JSON-processor v1.9.11.
* second, the hadoop cluster has Jackson JSON-processor v1.5.2. the
jars are installed in $HADOOP_HOME/lib.
according to this link,
http://blog.cloudera.com/blog/2011/01/ho
s you will have to come up with a composite key). when the data comes
into the reducer, just keep a running count and emit each time.
On Fri, Oct 5, 2012 at 11:21 AM, Jane Wayne wrote:
> there's probably a million ways to do it, but it seems like it can be
> done, per your question. off th
there's probably a million ways to do it, but it seems like it can be done,
per your question. off the top of my head, you'd probably want to do
the cumulative sum in the reducer. if you're savy, maybe even make the
reducer reusable as a combiner (looks like this problem might have an
associative a
jay,
thanks. i just needed a sanity check. i hope and expect that one day,
hadoop will mature towards supporting a "shared-something" approach.
the web service call is not a bad idea at all. that way, we can
abstract what that ultimate data store really is.
i'm just a little surprised that we are
