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Posted to commits@rocketmq.apache.org by vo...@apache.org on 2022/01/06 01:14:59 UTC
[rocketmq] branch develop updated: [ISSUE #3692] docs: Modify the title content about the message query documentation. (#3693)
This is an automated email from the ASF dual-hosted git repository.
vongosling pushed a commit to branch develop
in repository https://gitbox.apache.org/repos/asf/rocketmq.git
The following commit(s) were added to refs/heads/develop by this push:
new 3f4329c [ISSUE #3692] docs: Modify the title content about the message query documentation. (#3693)
3f4329c is described below
commit 3f4329ce7fbec8b2c4530043bc6ce1d67e0f3a17
Author: 彭小漪 <64...@qq.com>
AuthorDate: Thu Jan 6 09:14:40 2022 +0800
[ISSUE #3692] docs: Modify the title content about the message query documentation. (#3693)
---
docs/en/Design_Query.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/docs/en/Design_Query.md b/docs/en/Design_Query.md
index 6988948..983d48d 100644
--- a/docs/en/Design_Query.md
+++ b/docs/en/Design_Query.md
@@ -5,7 +5,7 @@ RocketMQ supports message queries by two dimensions, which are "Query Message by
## 1. Query Message by Message Id
The MessageId in RocketMQ has a total length of 16 bytes, including the broker address (IP address and port) and CommitLog offset. In RocketMQ, the specific approach is that the Client resolves the Broker's address (IP address and port) and the CommitLog's offset address from the MessageId. Then both of them are encapsulated into an RPC request, and finally it will be sent through the communication layer (business request code: VIEW_MESSAGE_BY_ID). The Broker reads a message by using the [...]
-## 2. Query Message by Message Id
+## 2. Query Message by Message Key
"Query Messages by Message Key" is mainly based on RocketMQ's IndexFile. The logical structure of the IndexFile is similar to the implementation of HashMap in JDK. The specific structure of the IndexFile is as follows:
