From user-return-64048-archive-asf-public=cust-asf.ponee.io@cassandra.apache.org Mon Jun 17 07:57:17 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id E68B518062B for ; Mon, 17 Jun 2019 09:57:16 +0200 (CEST) Received: (qmail 2441 invoked by uid 500); 17 Jun 2019 07:56:24 -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 2428 invoked by uid 99); 17 Jun 2019 07:56:24 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 17 Jun 2019 07:56:24 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id 39FDAC5653 for ; Mon, 17 Jun 2019 07:56:22 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 1.801 X-Spam-Level: * X-Spam-Status: No, score=1.801 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=disabled Authentication-Results: spamd1-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=zalando.de Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id quy1N9XNmr49 for ; Mon, 17 Jun 2019 07:56:18 +0000 (UTC) Received: from mail-lj1-f172.google.com (mail-lj1-f172.google.com [209.85.208.172]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTPS id EB7EA5F5AA for ; Mon, 17 Jun 2019 07:56:17 +0000 (UTC) Received: by mail-lj1-f172.google.com with SMTP id p17so8347251ljg.1 for ; Mon, 17 Jun 2019 00:56:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zalando.de; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=L2fuNvHhXJiPF7idA9b7gUAnSOkMaDpWQcZ+lsGBRJg=; b=Am7WL0F7RoJNwtHh5560rfHxdDc6+0+4ujdxUq8szDYyCuJ8dUWkcIOc6yIuGEICZD y9J60IYGCOWgtTqlV9Sq00k0dKjGfRqECubX9MIrAduWo7Q2iwivI2DQwgbOD723iMXU i68vD9KfzSXP9KIi6Os7E/KsdpAuAkpQoU11NxQHMd51ZwQVpgrFdLTO+jrOUmI0+NpZ AaqqVncgcug07ggsHmcnO9I7YbCn2LZGfONPOKCu0wdnReTQ6UxBC5LTxRn2wdiHRXCI Sn9i4gX4xUyKxLUlqRUrzHHLuDeDpAUwyTGOsV1lSTIabA3k5IPQ/k/71s6zQ3j8wX1O 53pA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=L2fuNvHhXJiPF7idA9b7gUAnSOkMaDpWQcZ+lsGBRJg=; b=Ch+iJZWS9xirZHuFSbVH6I7FyggaqNciNwArg/8v/2UsY13sHW2kyrc7ZIG9Kd7KvS mHWqKvI4wqU1Cqvq8MOAogkdh231May1dp+1T1AVpPp0ZHnOJMaLtg0LsFShX/dD1wLz YcSzvfZkaI3bvsgTo4LuSDtk4M8Ji+ma/e4JvWwEy1haiNPUvJ1JNQMV9i829uaTHZOX fR3hA7+C6yNpH46HcnDaTUnyTOY3mOqf2lRPGCwjK2UJAXmpIHEtdm/JyOVNhHhYkL6r WJIfQzHdcPXY8xUpWQo12XJnIJuAj7kzbZmTO6FsPWy6rf7H7xHiO36UVE1uPgcGNZ4O Ys9A== X-Gm-Message-State: APjAAAUGmVKAdGjMNTV51wkbSp+esYQi3V2aEslN9sl3GznqTqgC9yIi W0wJhVM03ZtB1IXLn6KJY6s+Mdi7Ih39fR8CICY5wbBE X-Google-Smtp-Source: APXvYqwe2nCdVtNkypMRnm6S1Z6zYu509OZu0pxfZB8JlQNyAtYVOmMB2NB26LIejA4r2S5T3BiW35psyR1VuJvwQPs= X-Received: by 2002:a2e:934e:: with SMTP id m14mr31257436ljh.116.1560758176456; Mon, 17 Jun 2019 00:56:16 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Oleksandr Shulgin Date: Mon, 17 Jun 2019 09:55:50 +0200 Message-ID: Subject: Re: Cassandra migration from 1.25 to 3.x To: User Content-Type: multipart/alternative; boundary="000000000000b0536b058b805459" --000000000000b0536b058b805459 Content-Type: text/plain; charset="UTF-8" On Mon, Jun 17, 2019 at 9:30 AM Anurag Sharma wrote: > > We are upgrading Cassandra from 1.25 to 3.X. Just curious if there is any > recommended open source utility for the same. > Hi, The "recommended open source utility" is the Apache Cassandra itself. ;-) Given the huge difference between the major versions, though, you will need a decent amount of planning and preparation to successfully complete such a migration. Most likely you will want to do it in small steps, first upgrading to the latest minor version in the 1.x series, then making a jump to 2.x, then to 3.0, and only then to 3.x if you really mean to. On each upgrade step, be sure to examine the release notes carefully to understand if there is any impact for your cluster and/or client applications. Do have a test system with preferably identical setup and configuration and execute the upgrade steps there first to verify your expectations. Good luck! -- Alex --000000000000b0536b058b805459 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Mon, Jun 17, 2019 at 9:30 AM Anurag Sh= arma <anurag.rp.sharma@gma= il.com> wrote:

We ar= e upgrading Cassandra from 1.25 to 3.X. Just curious if there is any recomm= ended open source utility for the same.

Hi,

The "recommended=C2=A0 open sour= ce utility" is the Apache Cassandra itself. ;-)

Given the huge difference between the major versions, though, you will n= eed a decent amount of planning and preparation to successfully complete su= ch a migration.=C2=A0 Most likely you will want to do it in small steps, fi= rst upgrading to the latest minor version in the 1.x series, then making a = jump to 2.x, then to 3.0, and only then to 3.x if you really mean to.=C2=A0= On each upgrade step, be sure to examine the release notes carefully to un= derstand if there is any impact for your cluster and/or client applications= .=C2=A0 Do have a test system with preferably identical setup and configura= tion and execute the upgrade steps there first to verify your expectations.=

Good luck!
--
Alex
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