Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 0EE6F47B8 for ; Fri, 10 Jun 2011 09:22:35 +0000 (UTC) Received: (qmail 36716 invoked by uid 500); 10 Jun 2011 09:22:32 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 36681 invoked by uid 500); 10 Jun 2011 09:22:32 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 36673 invoked by uid 99); 10 Jun 2011 09:22:32 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 10 Jun 2011 09:22:32 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_MESSAGE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of Artem.Orobets@exigenservices.com designates 80.233.156.165 as permitted sender) Received: from [80.233.156.165] (HELO ex01.exigenservices.com) (80.233.156.165) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 10 Jun 2011 09:22:26 +0000 Received: from rixex03.internal.corp ([fe80::d918:9f43:5b7d:36e5]) by rixmisex01.internal.corp ([::1]) with mapi; Fri, 10 Jun 2011 12:22:03 +0300 From: Artem Orobets To: "user@cassandra.apache.org" CC: Andrey Lomakin Date: Fri, 10 Jun 2011 12:21:59 +0300 Subject: Are data migration tools for Cassandra exist? Thread-Topic: Are data migration tools for Cassandra exist? Thread-Index: AcwnT9latIZ0LW9ISBWti/HHc2l7bA== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_A28DF69C09C3A649A688F3B35EA893C7183886BCRIXEX03internal_" MIME-Version: 1.0 --_000_A28DF69C09C3A649A688F3B35EA893C7183886BCRIXEX03internal_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable If my application works in production and I change structure of my data (e.= g. type of column name) I will need to process all my stored data. As variant I can create new column family and import legacy data. I think, that is typical task, so tool for doing this should exist, but I c= an't find anything. Are there any tools or proved approaches to solve this task ? --_000_A28DF69C09C3A649A688F3B35EA893C7183886BCRIXEX03internal_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

If my application works in production and I change str= ucture of my data (e.g. type of  column name)

I will need to process all my stored data. =

As variant I can create new column family and import l= egacy data.

 

I think, that is typical task, so tool for doing this = should exist, but I can’t find anything.

Are there any tools or proved approaches to solve this= task ?

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