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Raj Kumar's Discussions

Can i update data in HDFS file
4 Replies

Hi,   Is it possible to update a particular line in HDFS file using Hadoop API.ThanksRajContinue

Started this discussion. Last reply by Raj Kumar Dec 16, 2011.

Regarding Map Reduce Program
1 Reply

Hi,I am totally new to this Hadoop programming,  I need a clarification regarding Map reduce implementation. Any suggestions are appreciatedI have some data in Hbase table. I need to write a java…Continue

Started this discussion. Last reply by Vikas Srivastava Jan 28.

Need Help To process nearly 40 GB data
3 Replies

Hi,    I am new to hadoop , So far gone through some sample map reduce programs. I have task to Process some huge data( around 40 GB) . Currently we are using Lucene index files to read this data.…Continue

Started this discussion. Last reply by Vikas Srivastava Dec 12, 2011.

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Vikas Srivastava replied to Raj Kumar's discussion Regarding Map Reduce Program
"hey Raj, yes u can write MR jobs , but you can also do this in simple java API's, which is much easy anyways, which you can easily find out in HBASE Definetive guide. Regards Vikas Srivastava "
Jan 28
Raj Kumar replied to Raj Kumar's discussion Can i update data in HDFS file
"thanks for the cinfirmation, i am able to update the data in Hbase now "
Dec 16, 2011
Vikas Srivastava replied to Raj Kumar's discussion Can i update data in HDFS file
"its possible to update data in hbase."
Dec 16, 2011
Raj Kumar replied to Raj Kumar's discussion Can i update data in HDFS file
" Hi,   if not in HDFS file, is it possible to update a field in Hbase or HIve. Thanks Raj      "
Dec 15, 2011
Vikas Srivastava replied to Raj Kumar's discussion Need Help To process nearly 40 GB data
"you can store it in hdfs with compression which would help you to compress the data as well as in reading the data efficiently.. you can do it by hive. Regards Vikas Srivastava "
Dec 12, 2011
Vikas Srivastava replied to Raj Kumar's discussion Can i update data in HDFS file
"Hi Raj, Its not possible by now, u can simply copy the file do it by sed or Awk. Regards Vikas Srivastava"
Dec 12, 2011
Raj Kumar posted a discussion

Can i update data in HDFS file

Hi,   Is it possible to update a particular line in HDFS file using Hadoop API.ThanksRajSee More
Dec 9, 2011
Raj Kumar posted a discussion

Regarding Map Reduce Program

Hi,I am totally new to this Hadoop programming,  I need a clarification regarding Map reduce implementation. Any suggestions are appreciatedI have some data in Hbase table. I need to write a java program to fetch a particular set of data and do updations on the data if needed. i want to use Hbase ApI to fetch the data . I need to know how this can implemented in a map reduce program. See More
Dec 5, 2011
Raj Kumar replied to Raj Kumar's discussion Need Help To process nearly 40 GB data
"Thanks Vikas for the replay. I have few more questions. My questions may be silly . As i am new to Hadoop don't mind Pls help me. 1. Pls send me, if you have any Map reduce java program , which reads data from HDFS file system/HBASE table.…"
Dec 2, 2011
Vikas Srivastava replied to Raj Kumar's discussion Need Help To process nearly 40 GB data
"Simple if you at starting point read from wiki hadoop ...after installation you can upload data through hive (interface on hadoop) into table,"
Dec 2, 2011
Raj Kumar posted a discussion

Need Help To process nearly 40 GB data

Hi,    I am new to hadoop , So far gone through some sample map reduce programs. I have task to Process some huge data( around 40 GB) . Currently we are using Lucene index files to read this data. Now i want to move this to HDFS file system.  I need suggestions here how to proceed . Not sure how to start for this use case . See More
Nov 28, 2011
Raj Kumar is now a member of Hadoop Professionals
Nov 23, 2011

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Hadoop Experience Level
Beginner
HBase Expertise
Beginner

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