ijuma commented on code in PR #19033:
URL: https://github.com/apache/kafka/pull/19033#discussion_r1970992722
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docs/implementation.html:
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@@ -103,67 +103,8 @@ <h5 class="anchor-heading"><a id="recordheader"
class="anchor-link"></a><a href=
<h4 class="anchor-heading"><a id="messageset" class="anchor-link"></a><a
href="#messageset">5.3.3 Old Message Format</a></h4>
<p>
- Prior to Kafka 0.11, messages were transferred and stored in
<i>message sets</i>. In a message set, each message has its own metadata. Note
that although message sets are represented as an array,
- they are not preceded by an int32 array size like other array elements
in the protocol.
+ Prior to Kafka 0.11, messages were transferred and stored in
<i>message sets</i>. See <a
href="https://kafka.apache.org/39/documentation/#messageset";>Old Message
Format</a> for more details.
Review Comment:
I debated that, but it seems like a very specific edge case and probably
doesn't matter enough to add here. The only way this can happen is if you
upgrade from an older version where the IBP was older than 3.0 and message
format was set to v0/v1 and the topic was compacted without a deletion policy.
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