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Posted to jira@kafka.apache.org by "guozhangwang (via GitHub)" <gi...@apache.org> on 2023/02/14 19:16:01 UTC

[GitHub] [kafka] guozhangwang commented on a diff in pull request #13082: MINOR: Clarify docs for Streams config max.warmup.replicas.

guozhangwang commented on code in PR #13082:
URL: https://github.com/apache/kafka/pull/13082#discussion_r1106267030


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docs/streams/developer-guide/config-streams.html:
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@@ -778,10 +778,20 @@ <h4><a class="toc-backref" href="#id34">rack.aware.assignment.tags</a><a class="
           <span id="streams-developer-guide-max-warmup-replicas"></span><h4><a class="toc-backref" href="#id29">max.warmup.replicas</a><a class="headerlink" href="#max-warmup-replicas" title="Permalink to this headline"></a></h4>
           <blockquote>
             <div>
-              The maximum number of warmup replicas (extra standbys beyond the configured num.standbys) that can be assigned at once for the purpose of keeping
-              the task available on one instance while it is warming up on another instance it has been reassigned to. Used to throttle how much extra broker
-              traffic and cluster state can be used for high availability. Increasing this will allow Streams to warm up more tasks at once, speeding up the time
-              for the reassigned warmups to restore sufficient state for them to be transitioned to active tasks. Must be at least 1.
+              <p>
+                The maximum number of warmup replicas (extra standbys beyond the configured <code class="docutils literal"><span class="pre">num.standbys</span></code>) that can be assigned at once for the purpose of keeping
+                the task available on one instance while it is warming up on another instance it has been reassigned to. Used to throttle how much extra broker
+                traffic and cluster state can be used for high availability. Increasing this will allow Streams to warm up more tasks at once, speeding up the time
+                for the reassigned warmups to restore sufficient state for them to be transitioned to active tasks. Must be at least 1.
+              </p>
+              <p>
+                Note that one warmup replica corresponds to one Stream Task. Furthermore, note that each warmup task can only be promoted to an active task during

Review Comment:
   Could we add a cf for any capitalized terms and concepts like Stream Task here as well? The link would be: https://kafka.apache.org/34/documentation/streams/architecture#streams_architecture_tasks



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