[GitHub] [kafka] rhauch commented on a diff in pull request #12424: RELEASE: Add 3.2 upgrade docs

[GitBox <gi...@apache.org>]

rhauch commented on code in PR #12424:
URL: https://github.com/apache/kafka/pull/12424#discussion_r925721375


##########
docs/upgrade.html:
##########
@@ -61,6 +61,20 @@ <h4><a id="upgrade_3_2_0" href="#upgrade_3_2_0">Upgrading to 3.2.0 from any vers
     </li>
 </ol>
 
+<h5><a id="upgrade_321_notable" href="#upgrade_321_notable">Notable changes in 3.2.1</a></h5>
+    <ul>
+        <li>A problem with OAuth token refresh was fixed. During token refresh, the Kafka client was not including
+            the SASL extensions which were present during the initial authentication. This leads to authentication
+            failures. See <a href="https://issues.apache.org/jira/browse/KAFKA-14062">KAFKA-14062</a> for details.</li>
+        <li>A problem in Connect with <code>error.tolerance</code> was fixed. When <code>error.tolerance</code>
+            was set to <code>all</code>, it was possible for offsets to not be committed and a memory leak to occur
+            (eventually resulting in an OutOfMemoryError). 

Review Comment:
   Minor suggestions:
   ```suggestion
           <li>A problem in Connect with <code>error.tolerance</code> was fixed. Starting in 3.2.0, when
               a source connector uses <code>errors.tolerance=all</code> and Connect's producer fails to
               successfully send a source record to the topic, the error is properly reported and the connector
               continues, but Connect stops committing source offsets for that source connector and a
               memory leak will eventually cause the Connect worker to fail with an OutOfMemoryError. 
   ```



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