merlimat commented on a change in pull request #4079: PIP-34 Key_Shared
subscription core implementation.
URL: https://github.com/apache/pulsar/pull/4079#discussion_r277902577
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File path:
pulsar-client-api/src/main/java/org/apache/pulsar/client/api/TypedMessageBuilder.java
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@@ -103,6 +103,15 @@
*/
TypedMessageBuilder<T> keyBytes(byte[] key);
+ /**
+ * Sets the ordering key of the message for message dispatch in {@link
SubscriptionType#Key_Shared} mode.
+ * Partition key Will be used if ordering key not specified
+ *
+ * @param orderingKey the ordering key for the message
+ * @return the message builder instance
+ */
+ TypedMessageBuilder<T> orderingKey(byte[] orderingKey);
Review comment:
This is hugely confusing. Now we can have 2 different keys on the message.
Users might think the other key doesn't guarantee ordering.
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