k-raina commented on code in PR #19931:
URL: https://github.com/apache/kafka/pull/19931#discussion_r2136215946
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docs/design.html:
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@@ -340,6 +340,18 @@ <h3 class="anchor-heading"><a id="usingtransactions"
class="anchor-link"></a><a
transactions. However, in the event of a transaction abort, the
application's state and in particular the current position of the consumer must
be reset explicitly so that it can
reprocess the records processed by the aborted transaction.
<p>
+ The error handling for transactional producer has been standardized which
ensures consistent behavior and clearer error handling patterns. The exception
categories are now more precisely defined:
+ <ol>
+ <li><strong>RetriableException</strong>: Temporary exceptions that are
retried automatically by the client. These are handled internally and don't
bubble up to the application.</li>
+ <li><strong>RefreshRetriableException</strong>: Exceptions requiring
metadata refresh before retry. These are handled internally by the client after
refreshing metadata and don't bubble up to the application.</li>
+ <li><strong>AbortableException</strong>: Exceptions that require
transaction abort and reprocessing. These bubble up to the application, which
must handle them by aborting the transaction and resetting the consumer
position.</li>
+ <li><strong>ApplicationRecoverableException</strong>: Exceptions that
bubble up to the application and require application handling. The application
must implement its own recovery strategy, which must include restarting the
producer.</li>
+ <li><strong>InvalidConfigurationException</strong>:
Configuration-related exceptions that bubble up to the application and require
application handling and producer restart.</li>
Review Comment:
Corrected in commit
https://github.com/apache/kafka/pull/19931/commits/083bccc1465913123a7cf5dbf8855f4faa21a435
Producer doesn't necessary need to restart, as it might be fixed by simple
retry.
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