mingdaoy commented on code in PR #19065:
URL: https://github.com/apache/kafka/pull/19065#discussion_r1976674046
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docs/ops.html:
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@@ -3827,22 +3827,22 @@ <h4 class="anchor-heading"><a id="kraft_storage"
class="anchor-link"></a><a href
<h5 class="anchor-heading"><a id="kraft_storage_standalone"
class="anchor-link"></a><a href="#kraft_storage_standalone">Bootstrap a
Standalone Controller</a></h5>
The recommended method for creating a new KRaft controller cluster is to
bootstrap it with one voter and dynamically <a href="#kraft_reconfig_add">add
the rest of the controllers</a>. Bootstrapping the first controller can be done
with the following CLI command:
- <pre><code class="language-bash">$ bin/kafka-storage.sh format --cluster-id
<cluster-id> --standalone --config controller.properties</code></pre>
+ <pre><code class="language-bash">$ bin/kafka-storage.sh format --cluster-id
<cluster-id> --standalone --config
config/controller.properties</code></pre>
This command will 1) create a meta.properties file in metadata.log.dir with
a randomly generated directory.id, 2) create a snapshot at
00000000000000000000-0000000000.checkpoint with the necessary control records
(KRaftVersionRecord and VotersRecord) to make this Kafka node the only voter
for the quorum.
<h5 class="anchor-heading"><a id="kraft_storage_voters"
class="anchor-link"></a><a href="#kraft_storage_voters">Bootstrap with Multiple
Controllers</a></h5>
The KRaft cluster metadata partition can also be bootstrapped with more than
one voter. This can be done by using the --initial-controllers flag:
- <pre><code class="language-bash">cluster-id=$(bin/kafka-storage.sh
random-uuid)
-controller-0-uuid=$(bin/kafka-storage.sh random-uuid)
-controller-1-uuid=$(bin/kafka-storage.sh random-uuid)
-controller-2-uuid=$(bin/kafka-storage.sh random-uuid)
+ <pre><code class="language-bash">CLUSTER_ID="$(bin/kafka-storage.sh
random-uuid)"
+CONTROLLER_0_UUID="$(bin/kafka-storage.sh random-uuid)"
+CONTROLLER_1_UUID="$(bin/kafka-storage.sh random-uuid)"
+CONTROLLER_2_UUID="$(bin/kafka-storage.sh random-uuid)"
# In each controller execute
bin/kafka-storage.sh format --cluster-id ${cluster-id} \
--initial-controllers
"0@controller-0:1234:${controller-0-uuid},1@controller-1:1234:${controller-1-uuid},2@controller-2:1234:${controller-2-uuid}"
\
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