I am trying to automate the installation/bringup of a complete hadoop/hbase cluster from a single script. I have run into a very small issue...
Before bringing up the namenode, I have to format it with the usual "hadoop namenode -format"

Executing the above command prompts the user for Y/N?. Is there an option that can be passed to force the format without prompting?
The aim is for the script to complete without any human intervention...

this should help.

echo Y | ${hadoophdfshome}/bin/hdfs namenode -format

-giri

On Sat, Aug 13, 2011 at 8:41 AM, Dhodapkar, Chinmay
<[EMAIL PROTECTED]>wrote:

> I am trying to automate the installation/bringup of a complete hadoop/hbase
> cluster from a single script. I have run into a very small issue...
> Before bringing up the namenode, I have to format it with the usual "hadoop
> namenode -format"
>
> Executing the above command prompts the user for Y/N?. Is there an option
> that can be passed to force the format without prompting?
> The aim is for the script to complete without any human intervention...
>
>
>
>

Perfect :)

-----Original Message-----
From: Giridharan Kesavan [mailto:[EMAIL PROTECTED]]
Sent: Sunday, August 14, 2011 5:42 PM
To: [EMAIL PROTECTED]
Subject: Re: hdfs format command issue

this should help.

echo Y | ${hadoophdfshome}/bin/hdfs namenode -format

-giri

On Sat, Aug 13, 2011 at 8:41 AM, Dhodapkar, Chinmay
<[EMAIL PROTECTED]>wrote:

> I am trying to automate the installation/bringup of a complete hadoop/hbase
> cluster from a single script. I have run into a very small issue...
> Before bringing up the namenode, I have to format it with the usual "hadoop
> namenode -format"
>
> Executing the above command prompts the user for Y/N?. Is there an option
> that can be passed to force the format without prompting?
> The aim is for the script to complete without any human intervention...
>
>
>
>

Generally though, the coreutil 'yes' lets you accomplish these kind of
tasks where you need to repeatedly put out a string in order to get
through some interaction/etc..

On Tue, Aug 16, 2011 at 5:32 AM, Dhodapkar, Chinmay
<[EMAIL PROTECTED]> wrote:
> Perfect :)
>
> -----Original Message-----
> From: Giridharan Kesavan [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, August 14, 2011 5:42 PM
> To: [EMAIL PROTECTED]
> Subject: Re: hdfs format command issue
>
> this should help.
>
> echo Y | ${hadoophdfshome}/bin/hdfs namenode -format
>
> -giri
>
> On Sat, Aug 13, 2011 at 8:41 AM, Dhodapkar, Chinmay
> <[EMAIL PROTECTED]>wrote:
>
>> I am trying to automate the installation/bringup of a complete hadoop/hbase
>> cluster from a single script. I have run into a very small issue...
>> Before bringing up the namenode, I have to format it with the usual "hadoop
>> namenode -format"
>>
>> Executing the above command prompts the user for Y/N?. Is there an option
>> that can be passed to force the format without prompting?
>> The aim is for the script to complete without any human intervention...
>>
>>
>>
>>
>

--
Harsh J