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From Hao Cheng <br...@critica.io>
Subject Re: Migration from Cassandra 1.2.5 to Cassandra 2.0.8 with changed partitioner settings
Date Wed, 30 Jul 2014 08:51:35 GMT
No idea if this will help, but have you tried the sstable2json and
json2sstable utilities to output json from your old cluster and import it
into the new one?


On Wed, Jul 30, 2014 at 1:40 AM, Kais Ahmed <kais@neteck-fr.com> wrote:

> hi tsi,
>
> You have you upgrade to 1.2.9 first.
>
> 2.0.0
> =====
>
> Upgrading
> ---------
>
>     - Java 7 is now *required*!
>     - Upgrading is ONLY supported from Cassandra 1.2.9 or later. This
>
>       goes for sstable compatibility as well as network.  When
>       upgrading from an earlier release, upgrade to 1.2.9 first and
>
>       run upgradesstables before proceeding to 2.0.
>
>
>
> 2014-07-30 8:51 GMT+02:00 Paco Trujillo <F.Trujillo@genetwister.nl>:
>
> Hi tsi
>>
>> We faced a similar situation a few months ago. At the end what we make is
>> developed a service in our application to migrate the data from the old
>> cassandra 1.2 to the new cassandra 2.0 using cql (with normal SELECT and
>> UPDATE commands) (our application at that moment have two cassandra
>> sessions, one for the 1.2 and another for the 2.0) . I know it is not the
>> perfect solution  but by this way we could migrate the data without
>> considering anything about partitioner
>>
>> Kind regards
>>
>>
>>
>> ------------------------------------------------------------------------------------
>> Francisco Trujillo - BioInformatic Developer
>>
>> Genetwister Technologies B.V.
>>
>> Phone: +31 317 466420
>> Fax: +31 317 466421
>> Email:f.trujillo@genetwister.nl
>> Internet:www.genetwister.nl
>>
>> --------------------------------------------------------------------------------------
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>> ________________________________________
>> From: tsi [thorsten.sinn@t-systems.com]
>> Sent: Tuesday, July 29, 2014 2:53 PM
>> To: cassandra-user@incubator.apache.org
>> Subject: Re: Migration from Cassandra 1.2.5 to Cassandra 2.0.8 with
>> changed partitioner settings
>>
>> We are moving our application to a plattform with this partitioner setting
>> and as far as I know there is no way to specify a partitioner on keyspace
>> level.
>>
>>
>>
>> --
>> View this message in context:
>> http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Migration-from-Cassandra-1-2-5-to-Cassandra-2-0-8-with-changed-partitioner-settings-tp7596019p7596021.html
>> Sent from the cassandra-user@incubator.apache.org mailing list archive
>> at Nabble.com.
>>
>
>

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