mirror of https://github.com/apache/kafka.git
35 lines
1.8 KiB
HTML
35 lines
1.8 KiB
HTML
<!--
|
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
|
contributor license agreements. See the NOTICE file distributed with
|
|
this work for additional information regarding copyright ownership.
|
|
The ASF licenses this file to You under the Apache License, Version 2.0
|
|
(the "License"); you may not use this file except in compliance with
|
|
the License. You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
-->
|
|
|
|
<!--#include virtual="../includes/_header.htm" -->
|
|
<h2><a id="migration" href="#migration">Migrating from 0.7.x to 0.8</a></h2>
|
|
|
|
0.8 is our first (and hopefully last) release with a non-backwards-compatible wire protocol, ZooKeeper layout, and on-disk data format. This was a chance for us to clean up a lot of cruft and start fresh. This means performing a no-downtime upgrade is more painful than normal—you cannot just swap in the new code in-place.
|
|
|
|
<h3><a id="migration_steps" href="#migration_steps">Migration Steps</a></h3>
|
|
|
|
<ol>
|
|
<li>Setup a new cluster running 0.8.
|
|
<li>Use the 0.7 to 0.8 <a href="tools.html">migration tool</a> to mirror data from the 0.7 cluster into the 0.8 cluster.
|
|
<li>When the 0.8 cluster is fully caught up, redeploy all data <i>consumers</i> running the 0.8 client and reading from the 0.8 cluster.
|
|
<li>Finally migrate all 0.7 producers to 0.8 client publishing data to the 0.8 cluster.
|
|
<li>Decommission the 0.7 cluster.
|
|
<li>Drink.
|
|
</ol>
|
|
|
|
<!--#include virtual="../includes/_footer.htm" -->
|