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Posted to hdfs-user@hadoop.apache.org by Peter Cogan <pe...@gmail.com> on 2013/01/04 16:50:04 UTC

Writing a sequence file

Hi,

I am trying to get my reducer to produce a sequence file using the command

job.setOutputFormatClass(SequenceFileOutputFormat.class);


However, I am getting an error in eclipse as follows:


The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)


I'm really confused!


Any help much appreciated!


thanks

Peter

Re: Writing a sequence file

Posted by Peter Cogan <pe...@gmail.com>.

Hi Bejoy,

ah yes that is exactly the mistake I was making, I had

import org.apache.hadoop.mapred.SequenceFileOutputFormat;


instead of

import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;


On Fri, Jan 4, 2013 at 4:04 PM, <be...@gmail.com> wrote:

> **
> Hi Peter
>
> Did you ensure that using SequenceFileOutputFormat from the right package?
>
> Based on the API you are using, mapred or mapreduce you need to use the
> OutputFormat from the corresponding package.
> Regards
> Bejoy KS
>
> Sent from remote device, Please excuse typos
> ------------------------------
> *From: * Peter Cogan <pe...@gmail.com>
> *Date: *Fri, 4 Jan 2013 15:50:04 +0000
> *To: *<us...@hadoop.apache.org>
> *ReplyTo: * user@hadoop.apache.org
> *Subject: *Writing a sequence file
>
> Hi,
>
> I am trying to get my reducer to produce a sequence file using the command
>
> job.setOutputFormatClass(SequenceFileOutputFormat.class);
>
>
> However, I am getting an error in eclipse as follows:
>
>
> The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
> Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)
>
>
> I'm really confused!
>
>
> Any help much appreciated!
>
>
> thanks
>
> Peter
>
>

Re: Writing a sequence file

Posted by Peter Cogan <pe...@gmail.com>.

Hi Bejoy,

ah yes that is exactly the mistake I was making, I had

import org.apache.hadoop.mapred.SequenceFileOutputFormat;


instead of

import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;


On Fri, Jan 4, 2013 at 4:04 PM, <be...@gmail.com> wrote:

> **
> Hi Peter
>
> Did you ensure that using SequenceFileOutputFormat from the right package?
>
> Based on the API you are using, mapred or mapreduce you need to use the
> OutputFormat from the corresponding package.
> Regards
> Bejoy KS
>
> Sent from remote device, Please excuse typos
> ------------------------------
> *From: * Peter Cogan <pe...@gmail.com>
> *Date: *Fri, 4 Jan 2013 15:50:04 +0000
> *To: *<us...@hadoop.apache.org>
> *ReplyTo: * user@hadoop.apache.org
> *Subject: *Writing a sequence file
>
> Hi,
>
> I am trying to get my reducer to produce a sequence file using the command
>
> job.setOutputFormatClass(SequenceFileOutputFormat.class);
>
>
> However, I am getting an error in eclipse as follows:
>
>
> The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
> Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)
>
>
> I'm really confused!
>
>
> Any help much appreciated!
>
>
> thanks
>
> Peter
>
>

Re: Writing a sequence file

Posted by Peter Cogan <pe...@gmail.com>.

Hi Bejoy,

ah yes that is exactly the mistake I was making, I had

import org.apache.hadoop.mapred.SequenceFileOutputFormat;


instead of

import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;


On Fri, Jan 4, 2013 at 4:04 PM, <be...@gmail.com> wrote:

> **
> Hi Peter
>
> Did you ensure that using SequenceFileOutputFormat from the right package?
>
> Based on the API you are using, mapred or mapreduce you need to use the
> OutputFormat from the corresponding package.
> Regards
> Bejoy KS
>
> Sent from remote device, Please excuse typos
> ------------------------------
> *From: * Peter Cogan <pe...@gmail.com>
> *Date: *Fri, 4 Jan 2013 15:50:04 +0000
> *To: *<us...@hadoop.apache.org>
> *ReplyTo: * user@hadoop.apache.org
> *Subject: *Writing a sequence file
>
> Hi,
>
> I am trying to get my reducer to produce a sequence file using the command
>
> job.setOutputFormatClass(SequenceFileOutputFormat.class);
>
>
> However, I am getting an error in eclipse as follows:
>
>
> The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
> Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)
>
>
> I'm really confused!
>
>
> Any help much appreciated!
>
>
> thanks
>
> Peter
>
>

Re: Writing a sequence file

Posted by Peter Cogan <pe...@gmail.com>.

Hi Bejoy,

ah yes that is exactly the mistake I was making, I had

import org.apache.hadoop.mapred.SequenceFileOutputFormat;


instead of

import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;


On Fri, Jan 4, 2013 at 4:04 PM, <be...@gmail.com> wrote:

> **
> Hi Peter
>
> Did you ensure that using SequenceFileOutputFormat from the right package?
>
> Based on the API you are using, mapred or mapreduce you need to use the
> OutputFormat from the corresponding package.
> Regards
> Bejoy KS
>
> Sent from remote device, Please excuse typos
> ------------------------------
> *From: * Peter Cogan <pe...@gmail.com>
> *Date: *Fri, 4 Jan 2013 15:50:04 +0000
> *To: *<us...@hadoop.apache.org>
> *ReplyTo: * user@hadoop.apache.org
> *Subject: *Writing a sequence file
>
> Hi,
>
> I am trying to get my reducer to produce a sequence file using the command
>
> job.setOutputFormatClass(SequenceFileOutputFormat.class);
>
>
> However, I am getting an error in eclipse as follows:
>
>
> The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
> Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)
>
>
> I'm really confused!
>
>
> Any help much appreciated!
>
>
> thanks
>
> Peter
>
>

Re: Writing a sequence file

Posted by be...@gmail.com.

Hi Peter

Did you ensure that using SequenceFileOutputFormat from the right package?

Based on the API you are using, mapred or mapreduce you need to use the OutputFormat from the corresponding package.

Regards 
Bejoy KS

Sent from remote device, Please excuse typos

-----Original Message-----
From: Peter Cogan <pe...@gmail.com>
Date: Fri, 4 Jan 2013 15:50:04 
To: <us...@hadoop.apache.org>
Reply-To: user@hadoop.apache.org
Subject: Writing a sequence file

Hi,

I am trying to get my reducer to produce a sequence file using the command

job.setOutputFormatClass(SequenceFileOutputFormat.class);


However, I am getting an error in eclipse as follows:


The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)


I'm really confused!


Any help much appreciated!


thanks

Peter

Re: Writing a sequence file

Posted by be...@gmail.com.

Hi Peter

Did you ensure that using SequenceFileOutputFormat from the right package?

Based on the API you are using, mapred or mapreduce you need to use the OutputFormat from the corresponding package.

Regards 
Bejoy KS

Sent from remote device, Please excuse typos

-----Original Message-----
From: Peter Cogan <pe...@gmail.com>
Date: Fri, 4 Jan 2013 15:50:04 
To: <us...@hadoop.apache.org>
Reply-To: user@hadoop.apache.org
Subject: Writing a sequence file

Hi,

I am trying to get my reducer to produce a sequence file using the command

job.setOutputFormatClass(SequenceFileOutputFormat.class);


However, I am getting an error in eclipse as follows:


The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)


I'm really confused!


Any help much appreciated!


thanks

Peter

Re: Writing a sequence file

Posted by be...@gmail.com.

Hi Peter

Did you ensure that using SequenceFileOutputFormat from the right package?

Based on the API you are using, mapred or mapreduce you need to use the OutputFormat from the corresponding package.

Regards 
Bejoy KS

Sent from remote device, Please excuse typos

-----Original Message-----
From: Peter Cogan <pe...@gmail.com>
Date: Fri, 4 Jan 2013 15:50:04 
To: <us...@hadoop.apache.org>
Reply-To: user@hadoop.apache.org
Subject: Writing a sequence file

Hi,

I am trying to get my reducer to produce a sequence file using the command

job.setOutputFormatClass(SequenceFileOutputFormat.class);


However, I am getting an error in eclipse as follows:


The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)


I'm really confused!


Any help much appreciated!


thanks

Peter

Re: Writing a sequence file

Posted by be...@gmail.com.

Hi Peter

Did you ensure that using SequenceFileOutputFormat from the right package?

Based on the API you are using, mapred or mapreduce you need to use the OutputFormat from the corresponding package.

Regards 
Bejoy KS

Sent from remote device, Please excuse typos

-----Original Message-----
From: Peter Cogan <pe...@gmail.com>
Date: Fri, 4 Jan 2013 15:50:04 
To: <us...@hadoop.apache.org>
Reply-To: user@hadoop.apache.org
Subject: Writing a sequence file

Hi,

I am trying to get my reducer to produce a sequence file using the command

job.setOutputFormatClass(SequenceFileOutputFormat.class);


However, I am getting an error in eclipse as follows:


The method setOutputFormatClass(Class<? extends OutputFormat>) in the type
Job is not applicable for the arguments (Class<SequenceFileOutputFormat>)


I'm really confused!


Any help much appreciated!


thanks

Peter