rhauch commented on a change in pull request #277: URL: https://github.com/apache/kafka-site/pull/277#discussion_r466057952
########## File path: 26/upgrade.html ########## @@ -19,6 +19,48 @@ <script id="upgrade-template" type="text/x-handlebars-template"> +<h4><a id="upgrade_2_6_0" href="#upgrade_2_6_0">Upgrading to 2.6.0 from any version 0.8.x through 2.5.x</a></h4> + +<p><b>If you are upgrading from a version prior to 2.1.x, please see the note below about the change to the schema used to store consumer offsets. + Once you have changed the inter.broker.protocol.version to the latest version, it will not be possible to downgrade to a version prior to 2.1.</b></p> + +<p><b>For a rolling upgrade:</b></p> + +<ol> + <li> Update server.properties on all brokers and add the following properties. CURRENT_KAFKA_VERSION refers to the version you + are upgrading from. CURRENT_MESSAGE_FORMAT_VERSION refers to the message format version currently in use. If you have previously + overridden the message format version, you should keep its current value. Alternatively, if you are upgrading from a version prior + to 0.11.0.x, then CURRENT_MESSAGE_FORMAT_VERSION should be set to match CURRENT_KAFKA_VERSION. + <ul> + <li>inter.broker.protocol.version=CURRENT_KAFKA_VERSION (e.g., <code>2.5</code>, <code>2.4</code>, etc.)</li> Review comment: Rather than listing a bunch of the older versions, I wrapped with `<code>` and listed newer versions going backward as examples. Also changed for 2.5. and 2.4 sections. ########## File path: 26/upgrade.html ########## @@ -19,6 +19,48 @@ <script id="upgrade-template" type="text/x-handlebars-template"> +<h4><a id="upgrade_2_6_0" href="#upgrade_2_6_0">Upgrading to 2.6.0 from any version 0.8.x through 2.5.x</a></h4> + +<p><b>If you are upgrading from a version prior to 2.1.x, please see the note below about the change to the schema used to store consumer offsets. + Once you have changed the inter.broker.protocol.version to the latest version, it will not be possible to downgrade to a version prior to 2.1.</b></p> + +<p><b>For a rolling upgrade:</b></p> + +<ol> + <li> Update server.properties on all brokers and add the following properties. CURRENT_KAFKA_VERSION refers to the version you + are upgrading from. CURRENT_MESSAGE_FORMAT_VERSION refers to the message format version currently in use. If you have previously + overridden the message format version, you should keep its current value. Alternatively, if you are upgrading from a version prior + to 0.11.0.x, then CURRENT_MESSAGE_FORMAT_VERSION should be set to match CURRENT_KAFKA_VERSION. + <ul> + <li>inter.broker.protocol.version=CURRENT_KAFKA_VERSION (e.g., <code>2.5</code>, <code>2.4</code>, etc.)</li> + <li>log.message.format.version=CURRENT_MESSAGE_FORMAT_VERSION (See <a href="#upgrade_10_performance_impact">potential performance impact + following the upgrade</a> for the details on what this configuration does.)</li> + </ul> + If you are upgrading from version 0.11.0.x or above, and you have not overridden the message format, then you only need to override + the inter-broker protocol version. + <ul> + <li>inter.broker.protocol.version=CURRENT_KAFKA_VERSION (e.g., <code>2.5</code>, <code>2.4</code>, etc.)</li> Review comment: Rather than listing a bunch of the older versions, I wrapped with `<code>` and listed newer versions going backward as examples. Also changed for 2.5. and 2.4 sections. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org