From 82b7f0e2cc7de1599f460fb72c61571a4f35b771 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=A9=AC=E6=8B=93=E4=B9=89?= <matuoyi@zzpxx.com>
Date: Fri, 16 Aug 2024 09:41:24 +0800
Subject: [PATCH] =?UTF-8?q?=E5=B0=8F=E6=9B=B4=E6=94=B9?=
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---
 .../use-ansible-playbook-to-install-rabbitmq-cluster.md     | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/service_config/use-ansible-playbook-to-install-rabbitmq-cluster.md b/service_config/use-ansible-playbook-to-install-rabbitmq-cluster.md
index 43d7b53..f7677e1 100644
--- a/service_config/use-ansible-playbook-to-install-rabbitmq-cluster.md
+++ b/service_config/use-ansible-playbook-to-install-rabbitmq-cluster.md
@@ -313,7 +313,13 @@ virtual host选自建的，下面name名字随意起的，pattern 为 ^ 表示
 
 ha-sync-mode 选automatic，默认新加入的镜像不会同步消息，即默认的选项是manual，如果不加此选项，rabbitmq node节点重启后，会提示unsynchronised mirrors
 
+### 设置rabbitmq的内存水位线high watermark 
 
+vm_memory_high_watermark 默认值为0.4，就是说2G的内存，可以使用的是2G * 0.4 = 800M，超过800M，就会限制生产者，[rabbitmq 内存告警阈值](https://rabbitmq.org.cn/docs/memory)
+
+```
+rabbitmqctl set_vm_memory_high_watermark 0.8
+```
 
 2016年04月29日 于 [linux工匠](https://bbotte.github.io/) 发表