Hadoop Users Group (HUG) Chennai

Apache Avro vs Apache Thrift

Sorry for the delayed reply. You missed out Apache Thrift. http://thrift.apache.org/ Each

2/2/15

Yibin Qian

1/5/15

move namenode to a new server, ok?

Hei, I need help. I have already installed Clouera including two hosts, one works as namenode and

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move namenode to a new server, ok?

Hei, I need help. I have already installed Clouera including two hosts, one works as namenode and

1/5/15

Krishna, Amudhan K2

12/2/14

Oozie bundle job creation error

Hello Krishna, For your first question, You can't create a bundle job with out coordinator. Each

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Oozie bundle job creation error

Oozie

Hello Krishna, For your first question, You can't create a bundle job with out coordinator. Each

12/2/14

Elan Shenthil, Senthil Kumar3

11/6/14

Which is best! Setting up a Hadoop ecosystem on CentOS systems or Hortonworks sandbox?

Thanks Senthil, Being a trainee, I felt setting up Hadoop in the natural (from hdfs tar till Oozie)

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Which is best! Setting up a Hadoop ecosystem on CentOS systems or Hortonworks sandbox?

Thanks Senthil, Being a trainee, I felt setting up Hadoop in the natural (from hdfs tar till Oozie)

11/6/14

shivashankar n

10/13/14

SequenceFile Input format not recognized in Oozie workflow.xml?

Hi.. Anybody can help me with the below issue I have ? http://stackoverflow.com/questions/26322498/

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SequenceFile Input format not recognized in Oozie workflow.xml?

Oozie

Hi.. Anybody can help me with the below issue I have ? http://stackoverflow.com/questions/26322498/

10/13/14

kumar vaibhav, Subrata Biswas4

10/9/14

Architectural setup for Hadoop processed data to be served to front end

Tanks, Sure please do not forget the approach you are going to follow. I used both approach inn my

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Architectural setup for Hadoop processed data to be served to front end

Tanks, Sure please do not forget the approach you are going to follow. I used both approach inn my

10/9/14

Sivaji

10/6/14

How can i identified Best number of Mappers and Reducers in my cluster

Hi Every one, In my organisation we are using 6 node cluster, i am running some pig scripts on more

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How can i identified Best number of Mappers and Reducers in my cluster

Hi Every one, In my organisation we are using 6 node cluster, i am running some pig scripts on more

10/6/14

Sivaji, Vallinayagam2

8/19/14

Pig Query Doubt

Hello, For your first query SUBTRACT function will do the job, which returns a new Bag composed of

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Hello, For your first query SUBTRACT function will do the job, which returns a new Bag composed of

Pig Query Doubt

8/19/14

Prabhu R, Senthil Kumar3

8/14/14

Hbase stand-alone searches for HADOOP_HOME

Hi Senthil, We had not configured HADOOP, only HBASE - standalone single node with HMaster alone.

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HBase

Hbase stand-alone searches for HADOOP_HOME

Hi Senthil, We had not configured HADOOP, only HBASE - standalone single node with HMaster alone.

8/14/14

santhosh oruganti

7/5/14

Java.Net.connection Refused

When I am running sample program ie word count or pi program using hadoop version 2.2.0 through

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Java.Net.connection Refused

When I am running sample program ie word count or pi program using hadoop version 2.2.0 through

7/5/14

Arun Kumar, Sb Gowtham2

7/4/14

How to increase the Job-Tracker and Data-Node in Hadoop cluster

Hi you can't increase JT you can increase your DN by adding the machine IP address in slave file

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How to increase the Job-Tracker and Data-Node in Hadoop cluster

Hi you can't increase JT you can increase your DN by adding the machine IP address in slave file

7/4/14

Mahesh Nair, Subrata Biswas3

7/29/14

Accelerate MapReduce development using Jumbune, an all in one open source tool for hadoop

Hi Mahesh, Does it work for hadoop 2 also. Couple of questions- 1. Is it agent less? 2. how does it

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Accelerate MapReduce development using Jumbune, an all in one open source tool for hadoop

Hi Mahesh, Does it work for hadoop 2 also. Couple of questions- 1. Is it agent less? 2. how does it

7/29/14

Piyush Pawar

5/27/14

jps gives main class information unavailable

Hello, I suffered from this problem thst when i hit jps command it gives I am using hadoop-1.2.1 on

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jps gives main class information unavailable

Hello, I suffered from this problem thst when i hit jps command it gives I am using hadoop-1.2.1 on

5/27/14

Prabhu R

5/19/14

Hadoop-2.2.0 with hbase-0.96.2

Hi, In process of solving the below said problems, 1) Name Node single point failure 2) HMaster

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HBase

Hadoop-2.2.0 with hbase-0.96.2

Hi, In process of solving the below said problems, 1) Name Node single point failure 2) HMaster

5/19/14

sindhu hosamane, … Ashwanth Kumar17

5/16/14

Namenode and datanode not shown when using jps

Thanks all for ur help . Got it working now . Ports i was trying to access were free though . I

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Namenode and datanode not shown when using jps

Thanks all for ur help . Got it working now . Ports i was trying to access were free though . I

5/16/14

Vaidhyanathan A

5/9/14

Best Hadoop Tools

In Hadoop we need to do lot of tasks . Is there any specific tools which has whole control over the

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In Hadoop we need to do lot of tasks . Is there any specific tools which has whole control over the

Best Hadoop Tools

5/9/14

Piyush Pawar, Senthil Kumar7

4/26/14

Error while running program in hadoop

I'm using Hadoop-1.2.1 on ubuntu with eclipse-kepler as IDE On 4/26/14, piyush pawar <

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Jobs

Error while running program in hadoop

I'm using Hadoop-1.2.1 on ubuntu with eclipse-kepler as IDE On 4/26/14, piyush pawar <

4/26/14

Muthu Pandi, … CHiLA Consulting4

4/21/14

Hadoop Vs Cloudera Vs HortonWorks

Perfect ! Extend to that I like to share with you, that my media client is having two distributions

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Hadoop Vs Cloudera Vs HortonWorks

Perfect ! Extend to that I like to share with you, that my media client is having two distributions

4/21/14

Senthil Kumar, raj raj4

9/16/14

Latest Stable Versions of some of the BigData Components

hadoop--0.20.0 pig--0.13 hive--0.12 On Friday, 18 April 2014 07:35:07 UTC+5:30, Senthil Kumar wrote:

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Latest Stable Versions of some of the BigData Components

hadoop--0.20.0 pig--0.13 hive--0.12 On Friday, 18 April 2014 07:35:07 UTC+5:30, Senthil Kumar wrote:

9/16/14

Muthu Pandi, … Senthil Kumar6

4/21/14

Need to automate sqoop import Job

Yeah definitely, Issue #1 Faced issues while building Oozie for our distribution (hadoop 1.2.1 Hive

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Need to automate sqoop import Job

Hive

Sqoop

Yeah definitely, Issue #1 Faced issues while building Oozie for our distribution (hadoop 1.2.1 Hive

4/21/14

lakshminarayan, Sb Gowtham2

4/7/14

Namenode and JobTracker

Hi lakshminarayan If your cluster is not big enough (thousands of nodes) then there should be no

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Hi lakshminarayan If your cluster is not big enough (thousands of nodes) then there should be no

Namenode and JobTracker

4/7/14

Prabhu R, … Sb Gowtham3

3/27/14

Big Data without Hadoop

Hi Prabhu Big data is a problem and it just a theory .Hadoop is where we solve the Big Data problem ,

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Hi Prabhu Big data is a problem and it just a theory .Hadoop is where we solve the Big Data problem ,

Big Data without Hadoop

3/27/14

Sudhir Babu

3/10/14

Cloudera certification for Admin and Devloper

Has anyone recently completed cloudera certification ? Please share your experience on preparation

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Cloudera certification for Admin and Devloper

Has anyone recently completed cloudera certification ? Please share your experience on preparation

3/10/14

Sanjay Bhosale, Vallinayagam3

2/19/14

Is it possible to write custom udf for group by clause in Pig

I want to compare the two records which are ssdeep and then according to percentage in match i need

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Is it possible to write custom udf for group by clause in Pig

I want to compare the two records which are ssdeep and then according to percentage in match i need

2/19/14

Amith Kumar, … srinivas .4

1/8/14

Big Data watch List

Thank You very much Senthil. Thats a very helpful information!!! On Tuesday, January 7, 2014 9:41:29

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Thank You very much Senthil. Thats a very helpful information!!! On Tuesday, January 7, 2014 9:41:29

Big Data watch List

1/8/14

jaikumar

12/11/13

Hadoop 2 MR error

Hi , In YARN multinode cluster i am getting following error. Help me to solve this. 13/12/11 12:55:00

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Hi , In YARN multinode cluster i am getting following error. Help me to solve this. 13/12/11 12:55:00

Hadoop 2 MR error

12/11/13

sorna lingam, Ashwanth Kumar2

12/3/13

how to use Job.KillTask in mapper program

Mapper upon uncaught exceptions fail, you don't need to catch the exception in the Mapper and

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how to use Job.KillTask in mapper program

Mapper upon uncaught exceptions fail, you don't need to catch the exception in the Mapper and

12/3/13

jaikumar

12/3/13

Nodemanager not started

Hi , I am configuring hadoop 2 -YARN with 3 node cluster . by following steps of this site http://

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Hi , I am configuring hadoop 2 -YARN with 3 node cluster . by following steps of this site http://

Nodemanager not started

12/3/13

Sanjay Bhosale, Subu2

11/10/13

Where files should be stored from inside of Java UDF in pig?

I am not clear with your question. Could you please elaborate more, what exactly you are trying to do

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Where files should be stored from inside of Java UDF in pig?

I am not clear with your question. Could you please elaborate more, what exactly you are trying to do

11/10/13

Sanjay Bhosale2

10/25/13

Problem with HBase 0.94 and 0.96

Now problem is resolved to some extent. Now i am getting error at slaves that they are unable to

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HBase