Can we setup Flume in Apache Hadoop?

Hi, Can we setup Flume in Apache Hadoop... If yes can someone share the URL for the steps to do so... Thanks and Regards, Rams

Suggestion need on desinging Flatten table for HBase given scenario

Dear All, For the below 1 to many relationship column sets, require suggestion on how to design a Flatten HBase table... Kindly refer the attached image for the scenario... Pls let me know if my scenario is not clearly explained... regards, Rams <>

How to update the timestamp of a file in HDFS

Hi, Can you please help on to update the date & timestamp of a file in HDFS. regards, Rams

Doubts on compressed file

Hi, If a zip file(Gzip) is loaded into HDFS will it get splitted into Blocks and store in HDFS? I understand that a single mapper can work with GZip as it reads the entire file from beginning to end... In that case if the GZip file size is larget than 128 MB will it get splitted into blocks and s

Doubt on Input and Output Mapper - Key value pairs

Hi, Which of the following is correct w.r.t mapper. (a) It accepts a single key-value pair as input and can emit any number of key-value pairs as output, including zero. (b) It accepts a single key-value pair as input and emits a single key and list of corresponding values as output regards, Ra

Regarding loading Image file into HDFS

Hi, I have basic doubt... How Hadoop splits an Image file into blocks and puts in HDFS? Usually Image file cannot be splitted right how it is happening in Hadoop? regards, Rams

Can we use Pentaho Job in oozie?

Hi, Can we use Pentaho Jobs in oozie? regards, Rams

Re: Question related to Number of Mapper

gt; > Is this one of those online Cert questions? > > On Nov 7, 2012, at 10:20 AM, Ramasubramanian Narayanan < > ramasubramanian.naraya...@gmail.com> wrote: > > > Hi, > > > > If a Custer’s HDFS block size is 64MB. You have a directory containing > 100 pla

Re: Please help on providing correct answers

these questions from? > > Seriously. > > > On Nov 7, 2012, at 11:21 AM, Ramasubramanian Narayanan < > ramasubramanian.naraya...@gmail.com> wrote: > > > Hi, > > > >I came across the following question in some sites and the answer > that they provided

Re: Please help on providing correct answers

tead like you to explain why you think someone's proposed > answer (who?) is wrong and why yours is correct. You learn more that > way than us head nodding/shaking to things you ask. > > On Wed, Nov 7, 2012 at 10:51 PM, Ramasubramanian Narayanan > wrote: > > Hi, > > &

How to overwrite Key in RecordReader function

DA, We are trying to write a UDF to read an XML which contains some unbounded tags. For repeated tags, new row has to be generated. Please let us know how to ovewrite the default key with the new key in the Record Reader function (where we do for loop to make multiple rows). *Sample XML:*