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Posted to user@cassandra.apache.org by Harshvardhan Ojha <Ha...@makemytrip.com> on 2012/05/18 18:58:17 UTC
Migration from cassandra 0.8.6 to 1.1.0
Hi All,
I am trying to migrate from Cassandra version 0.8.6 to 1.1.0.
I had two keyspace and I wanted to keep only one. So I deleted system and ran schema again for another keyspace.
After running schema for keyspace I noticed that new folders are created for every column family, inside keyspace folder.
So data is not available on Cassandra 1.1.0.
Is it a new feature to create folder for each column family in keyspace?
How can I get all data from old keyspace in new version? Any suggestion would be highly appreciable.
Harshvardhan Ojha | Software Developer - Technology Development
| MakeMyTrip.com, 243 SP Infocity, Udyog Vihar Phase 1, Gurgaon, Haryana - 122 016, India
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Re: Migration from cassandra 0.8.6 to 1.1.0
Posted by Jonathan Ellis <jb...@gmail.com>.
1.1 will migrate your data to the new directory structure, but it needs the
0.8 schema to do that. Then you can drop the unwanted keyspace
post-upgrade.
On Fri, May 18, 2012 at 11:58 AM, Harshvardhan Ojha <
Harshvardhan.Ojha@makemytrip.com> wrote:
> Hi All,****
>
> ** **
>
> I am trying to migrate from Cassandra version 0.8.6 to 1.1.0. ****
>
> I had two keyspace and I wanted to keep only one. So I deleted system and
> ran schema again for another keyspace.****
>
> After running schema for keyspace I noticed that new folders are created
> for every column family, inside keyspace folder.****
>
> So data is not available on Cassandra 1.1.0. ****
>
> Is it a new feature to create folder for each column family in keyspace? *
> ***
>
> How can I get all data from old keyspace in new version? Any suggestion
> would be highly appreciable.****
>
> ** **
>
> *Harshvardhan Ojha* *|* Software Developer - Technology Development****
>
> | MakeMyTrip.com, 243 SP Infocity, Udyog Vihar Phase 1, Gurgaon,
> Haryana - 122 016, India****
>
> [image: Description:
> http://www.mailmktg.makemytrip.com/signature/images/bulb.gif]*What's
> new?: Inspire *- Discover an inspiring new way to plan and book travel
> online <http://inspire.makemytrip.com/inspire/>.****
>
> [image: Description:
> http://www.mailmktg.makemytrip.com/signature/images/MMT-signature-footer-V4.gif]<http://www.makemytrip.com/>
> ****
>
> [image: Description:
> http://www.mailmktg.makemytrip.com/signature/images/map-icon.gif]<http://www.makemytrip.com/support/gurgaon-travel-agent-office.php>
> *Office Map*****
>
> [image: Description:
> http://www.mailmktg.makemytrip.com/signature/images/facebook-icon.gif]<http://www.facebook.com/pages/MakeMyTrip-Deals/120740541030?ref=search&sid=100000077980239.1422657277..1>
> *Facebook*****
>
> [image: Description:
> http://www.mailmktg.makemytrip.com/signature/images/twitter-icon.gif]<http://twitter.com/makemytripdeals>
> *Twitter*****
>
> ** **
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com