Programming enthusiast. Current interest Java, Hadoop (MapReduce & Cluster configuration). Here to learn from you great people.

I also like to play Guitar and Sing.

Apr
19
comment TextInputFormat VS non UTF-8 encoding
@ClémentMATHIEU: Interesting, I have a question - LineReader uses str.append(buffer, startPosn, appendLength);(where str is of type Text) to append to the buffer but if you see the javadoc for Text.append(), it mentions utf8 as the buffer encoding, though it's really of type byte[]. Do you think utf8 shouldn't be mentioned there? I'm getting little confused now.
Feb
25
awarded Yearling
Feb
8
accepted Force the DHCP server to renew the IP address of a client machine, without doing anything in client machine
Jan
30
awarded Famous Question
Jan
18
awarded hadoop
Jan
4
comment Neither FileOutputCommitter.commitTask nor abortTask are invoked
So, how did you use or set your custom output committer?
Dec
15
revised How Hadoop writes on hard drives of each data node?
added 76 characters in body
Dec
15
answered How Hadoop writes on hard drives of each data node?
Dec
15
revised Understanding the map/reduce process. Have few questions
added 3 characters in body
Dec
15
answered Understanding the map/reduce process. Have few questions
Dec
15
comment Pydoop job not running
@Aravinth, at this point I can only suggest you to know how to do the setup of pydoop properly in every node and then look for a working example.
Dec
7
comment MapReduce on Cassandra execution error
No clue! Haven't really used Cassandra. Just replied to help you compile the jar. May be you can see the guides :)
Dec
7
answered MapReduce on Cassandra execution error
Dec
6
comment Permission denied when running hive query
Have you given execute permission to the script?
Dec
6
comment Running a mapreduce class in another Java program
To make things clear, can you provide what's inside MRProg?
Dec
6
comment hadoop CustomInputFormat Not getting invoked
@DebD, Have you tried putting job.setjarByClass(TestDriver.class)?
Dec
4
revised Hadoop Directory with Spaces
added 37 characters in body
Dec
4
answered Hadoop Directory with Spaces
Dec
4
revised Pydoop job not running
added 151 characters in body
Dec
4
comment Hadoop Failed to set permissions of path: \tmp\
What I can best say at this moment is to manually configure the hadoop property in core-site.xml <property> <name>hadoop.tmp.dir</name> <value>/tmp/${user.name}</value> </property>
1 2 3 4 5