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new 9746907e84f5 [improve][doc] Doducment dlq producerName (#735)
9746907e84f5 is described below
commit 9746907e84f565b91e028121b66b8c69c6b99438
Author: crossoverJie <crossover...@gmail.com>
AuthorDate: Mon Nov 27 17:37:34 2023 +0800
[improve][doc] Doducment dlq producerName (#735)
This PR adds doc for https://github.com/apache/pulsar/pull/21589
Co-authored-by: Zike Yang <z...@apache.org>
---------
Co-authored-by: Zike Yang <z...@apache.org>
---
docs/concepts-messaging.md | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/docs/concepts-messaging.md b/docs/concepts-messaging.md
index 1701bd32ccb8..0249c4b6ccf7 100644
--- a/docs/concepts-messaging.md
+++ b/docs/concepts-messaging.md
@@ -332,6 +332,13 @@ The default dead letter topic uses this format:
```
<topicname>-<subscriptionname>-DLQ
```
+
+The dead letter producerName uses this format:
+
+```
+<topicname>-<subscriptionname>-DLQ
+```
+
:::note
- For Pulsar 2.6.x and 2.7.x, the default dead letter topic uses the format of
`<subscriptionname>-DLQ`. If you upgrade from 2.6.x~2.7.x to 2.8.x or later,
you need to delete historical dead letter topics and retry letter partitioned
topics. Otherwise, Pulsar continues to use original topics, which are formatted
with `<subscriptionname>-DLQ`.
- It is not recommended to use `<subscriptionname>-DLQ` because if multiple
topics under the same namespace have the same subscription, then dead message
topic names for multiple topics might be the same, which will result in mutual
consumptions.
