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KnowStreaming/docs/dev_guide/健康巡检.md
2022-08-18 17:04:05 +08:00

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# 健康巡检
## 1、前言
---
## 2、已有巡检
### 2.1、Cluster健康巡检(1个)
#### 2.1.1、集群Controller数错误
**说明**
- 集群Controller数不等于1表明集群集群无Controller或者出现了多个Controller
**配置**
---
### 2.2、Broker健康巡检(2个)
#### 2.2.1、Broker-RequestQueueSize被打满
**说明**
- Broker的RequestQueueSize被打满
**配置**
---
#### 2.2.2、Broker-NetworkProcessorAvgIdle过低
**说明**
- Broker的NetworkProcessorAvgIdle指标当前过低
**配置**
---
### 2.3、Topic健康巡检(2个)
#### 2.3.1、Topic 无Leader数
**说明**
- 当前Topic的无Leader分区数超过一定值
**配置**
#### 2.3.1、Topic 长期处于未同步状态
**说明**
- 指定的一段时间内Topic一直处于未同步的状态
**配置**
---
### 2.4、Group健康巡检(1个)
#### 2.4.1、Group Re-Balance太频繁
**说明**
- 指定的一段时间内Group Re-Balance的次数是否过多
**配置**
---
## 3、自定义增强
如何增加想要的巡检?