> For the complete documentation index, see [llms.txt](https://docs.tibero.com/tmaxopensql/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tibero.com/tmaxopensql/installation/binary/openha-dcs-distributed-configuration-store.md).

# OpenHA DCS (Distributed Configuration Store)

## 개요

OpenHA의 분산 구성 저장소로, 클러스터 멤버십과 각 인스턴스 상태를 안정적으로 저장·공유하며, 리더 선출을 수행합니다. 이 기능은 etcd 기술을 기반으로 구현되었으며, 관리 도구로 `etcdctl`을 제공합니다.

{% embed url="<https://github.com/etcd-io/etcd>" %}

***

## 설치

### 1. OPENSQL\_INSTALL\_HOME 디렉토리 설정

```
. ./setenv.sh `pwd`
OPENSQL_INSTALL_HOME is set to: /home/opensql3.0-rockylinux9.4-pg16.8
OPENSQL_HOME is set to: /home/opensql
OPENSQL_HOME added to /home/opensql/.bashrc
```

### 2. OpenHA DCS 설치

```
./install.sh etcd
```

### 3. OpenHA DCS 설치여부 확인

설치를 완료하면 아래의 명령어로 OpenHA DCS(etcd 와 etcdctl 기반)의 버전을 확인할 수 있습니다.

```
[opensql@396dd54381db etcd-v3.5.6-linux-amd64]etcd --version
etcd Version: 3.5.6
Git SHA: cecbe35ce
Go Version: go1.16.15
Go OS/Arch: linux/amd64

[opensql@396dd54381db etcd-v3.5.6-linux-amd64]etcdctl version
etcdctl version: 3.5.6
API version: 3.5
```

###


---

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