liudezhi2098 commented on a change in pull request #13468:
URL: https://github.com/apache/pulsar/pull/13468#discussion_r774854835
##########
File path: site2/docs/concepts-messaging.md
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@@ -273,13 +273,33 @@ Consumer<byte[]> consumer =
pulsarClient.newConsumer(Schema.BYTES)
.subscribe();
```
+Retry letter message contains some special properties created by a client
automatically.
+
+Special property | Description
+:--------------------|:-----------
+`REAL_TOPIC` | The real topic name.
+`ORIGIN_MESSAGE_ID` | The origin message ID. It is crucial for message
tracking.
+`RECONSUMETIMES` | The retry consume times.
+`DELAY_TIME` | Message delay timeMs.
+**Example**
+```
+REAL_TOPIC = persistent://public/default/my-topic
+ORIGIN_MESSAGE_ID = 1:0:-1:0
+RECONSUMETIMES = 6
+DELAY_TIME = 3000
+```
+
If you want to put messages into a retrial queue, you can use the following
API.
```java
-consumer.reconsumeLater(msg,3,TimeUnit.SECONDS);
+consumer.reconsumeLater(msg, 3, TimeUnit.SECONDS);
```
+If you want to add custom properties for the reconsumeLater, you can use the
following API.
+```java
+consumer.reconsumeLater(msg, customProperties, 3, TimeUnit.SECONDS);
Review comment:
I can provide a complete example
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