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页面:https://blog.shenzjd.com/pages/3e4cf4b7f3da1/
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### Module
Core
### Testcontainers version
1.19.8
### Using the latest Testcontainers version?
Yes
### Host OS
Linux
### Host Arch
x86
### Docker version
```shell
20.…
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```
___ ____ _____ _ _ __ _ _ _
/ __| |_ / |_ _| ___ | |__ (_) / _` | __| | __ _ | |_ __ _
\__ \ …
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## 카프카 속도 향상 전략
- 카프카의 일원화된 데이터(바이너리 데이터)
- 카프카의 데이터(메시지) 들은 모두 바이너리 형식으로 구성되어 있다.
- 일반적으로 데이터 전송은 4단계로 구성된다.
1. OS는 디스크에서 커널 공간의 페이지 캐시로 데이터를 읽습니다.
2. 응용 프로그램은 커널 공간에서 사용자 공간 버퍼로 데…
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Most Kubernetes users are interested in configuring applications. That's the primary original purpose of Kubernetes, running containerized workloads. Even cluster services / add-ons are applications. …
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微服务之构建容错&自动降级的系统
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### 微服务是什么
MicroService主要是针对以前的Monolithic(单体)服务来说的,类似优步打车(Uber)这样的应用,如果使用Monolithic来架构,可能是这样的
![graph-01-e1431978090737](https://user-images.githubusercontent.c…
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**Elasticsearch version** (`bin/elasticsearch --version`): 7.6.2
**Plugins installed**: []
**JVM version** (`java -version`): 1.8
**OS version** (`uname -a` if on a Unix-like system): Ubu…
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Use case: mount a volume from host to container for use by apache as www user.
The problem is currently all mounts are mounted as root inside the container.
For example, this command
docker run -v /t…
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**Architecture**
https://aws.amazon.com/blogs/architecture/optimize-cost-by-automating-the-start-stop-of-resources-in-non-production-environments/
https://aws.amazon.com/blogs/architecture/underst…
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@Test
public void addOrUpdate(){
User user = new User();
user.setName("wang");
user.setEnName("laowang1");
user.setId("004");
User save = operatio…