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Posted to user@hadoop.apache.org by Jane Chen <jx...@yahoo.com> on 2012/09/15 00:51:06 UTC
HDFS compatibility.
If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
Thanks,
Jane
RE: HDFS compatibility.
Posted by Jane Chen <Ja...@marklogic.com>.
Thank you, Harsh!
-----Original Message-----
From: Harsh J [mailto:harsh@cloudera.com]
Sent: Friday, September 14, 2012 7:00 PM
To: user@hadoop.apache.org
Subject: Re: HDFS compatibility.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
RE: HDFS compatibility.
Posted by Jane Chen <Ja...@marklogic.com>.
Thank you, Harsh!
-----Original Message-----
From: Harsh J [mailto:harsh@cloudera.com]
Sent: Friday, September 14, 2012 7:00 PM
To: user@hadoop.apache.org
Subject: Re: HDFS compatibility.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
RE: HDFS compatibility.
Posted by Jane Chen <Ja...@marklogic.com>.
Thank you, Harsh!
-----Original Message-----
From: Harsh J [mailto:harsh@cloudera.com]
Sent: Friday, September 14, 2012 7:00 PM
To: user@hadoop.apache.org
Subject: Re: HDFS compatibility.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
RE: HDFS compatibility.
Posted by Jane Chen <Ja...@marklogic.com>.
Thank you, Harsh!
-----Original Message-----
From: Harsh J [mailto:harsh@cloudera.com]
Sent: Friday, September 14, 2012 7:00 PM
To: user@hadoop.apache.org
Subject: Re: HDFS compatibility.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
Re: HDFS compatibility.
Posted by Harsh J <ha...@cloudera.com>.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
Re: HDFS compatibility.
Posted by Harsh J <ha...@cloudera.com>.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
Re: HDFS compatibility.
Posted by Harsh J <ha...@cloudera.com>.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J
Re: HDFS compatibility.
Posted by Harsh J <ha...@cloudera.com>.
Jane,
Yes with a regular upgrade, your data will be available, not lost.
For doing upgrades, see
http://hadoop.apache.org/docs/stable/hdfs_user_guide.html#Upgrade+and+Rollback
I recommend reading the process and text described in the section
"Upgrades" (under Maintenance), page 316 | Chapter 10: "Administering
Hadoop" of Tom White's 2nd Edition of Hadoop: The Definitive Guide.
HTH.
On Sat, Sep 15, 2012 at 4:21 AM, Jane Chen <jx...@yahoo.com> wrote:
>
> If I were to upgrade from 1.0 to 0.23.1 or 2.0, will my data stored on HDFS still be accessible to the 2.0 system? Is there any documented upgrade process available?
>
> Thanks,
> Jane
--
Harsh J