KAFKA-8913: Document topic based configs & ISR settings for Streams a…

…pps (apache#7346)

Reviewer: Matthias J. Sax <matthias@confluent.io>

docs/streams/developer-guide/config-streams.html

@@ -617,6 +617,14 @@ <h4><a class="toc-backref" href="#id17">Naming</a><a class="headerlink" href="#n
 </pre></div>
           </div>
           <p> Same applied to <code class="docutils literal"><span class="pre">main.consumer.</span></code> and <code class="docutils literal"><span class="pre">main.consumer.</span></code>, if you only want to specify one consumer type config.</p>
+          <p> Additionally, to configure the internal repartition/changelog topics, you could use the <code class="docutils literal"><span class="pre">topic.</span></code> prefix, followed by any of the standard topic configs.</p>
+            <div class="highlight-java"><div class="highlight"><pre><span></span><span class="n">Properties</span> <span class="n">streamsSettings</span> <span class="o">=</span> <span class="k">new</span> <span class="n">Properties</span><span class="o">();</span>
+<span class="c1">// Override default for both changelog and repartition topics</span>
+<span class="n">streamsSettings</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="s">&quot;topic.PARAMETER_NAME&quot;</span><span class="o">,</span> <span class="s">&quot;topic-value&quot;</span><span class="o">);</span>
+<span class="c1">// alternatively, you can use</span>
+<span class="n">streamsSettings</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="n">StreamsConfig</span><span class="o">.</span><span class="na">topicPrefix</span><span class="o">(</span><span class="s">&quot;PARAMETER_NAME&quot;</span><span class="o">),</span> <span class="s">&quot;topic-value&quot;</span><span class="o">);</span>
+</pre></div>
+            </div>
           </div>
         </div>
         <div class="section" id="default-values">
@@ -775,6 +783,7 @@ <h4><a class="toc-backref" href="#id23">replication.factor</a><a class="headerli
             <div>See the <a class="reference internal" href="#replication-factor-parm"><span class="std std-ref">description here</span></a>.</div></blockquote>
           <div class="highlight-java"><div class="highlight"><pre><span></span><span class="n">Properties</span> <span class="n">streamsSettings</span> <span class="o">=</span> <span class="k">new</span> <span class="n">Properties</span><span class="o">();</span>
 <span class="n">streamsSettings</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="n">StreamsConfig</span><span class="o">.</span><span class="na">REPLICATION_FACTOR_CONFIG</span><span class="o">,</span> <span class="mi">3</span><span class="o">);</span>
+<span class="n">streamsSettings</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="n">StreamsConfig</span><span class="o">.</span><span class="na">topicPrefix</span><span class="o">(</span><span class="n">TopicConfig</span><span class="o">.</span><span class="na">MIN_IN_SYNC_REPLICAS_CONFIG</span><span class="o">),</span> <span class="mi">2</span><span class="o">);</span>
 <span class="n">streamsSettings</span><span class="o">.</span><span class="na">put</span><span class="o">(</span><span class="n">StreamsConfig</span><span class="o">.</span><span class="na">producerPrefix</span><span class="o">(</span><span class="n">ProducerConfig</span><span class="o">.</span><span class="na">ACKS_CONFIG</span><span class="o">),</span> <span class="s">&quot;all&quot;</span><span class="o">);</span>
 </pre></div>
           </div>