---
url: /v6.2/en-us/replace-of-redis.md
---
# Replace HENGSHI Redis

During the use of the HENGSHI SENSE service, you can replace the built-in Redis of HENGSHI according to business needs.

## Modify Redis-related Configuration

### Single-node Deployment:

Modify the following configuration items in the file `${HS_HOME}/conf/hengshi-sense-env.sh`:

```shell
export REDIS_HOST=xxx
export REDIS_PORT=xxx
export REDIS_PASSWORD=xxx
export REDIS_DATABASE=xxx
export REDIS_USERNAME="" #default empty

export HS_REDIS_IF_EXTERNAL=true # Declare the use of external object storage to replace HENGSHI MinIO
```

### Docker Deployment:

Modify the following configuration items in the file `.env` located in the same directory as `docker-compose.yml`:

```shell
REDIS_HOST=xxx
REDIS_PORT=xxx
REDIS_PASSWORD=xxx
REDIS_DATABASE=xxx
REDIS_USERNAME="" #default empty

HS_REDIS_IF_EXTERNAL=true # Declare the use of external object storage to replace HENGSHI MinIO
```

### Cluster Deployment:

Modify the following configuration items in the file `${HS_HOME}/ansible/vars.yml`:

```shell
#------- hengshi_config will overwrite the 'deprecated' vars above ----------
hengshi_config:
- export HS_HENGSHI_PORT=8081
- export HS_PG_PORT=54320
....
- export REDIS_HOST=xxx
- export REDIS_PORT=xxx
- export REDIS_PASSWORD=xxx
- export REDIS_DATABASE=xxx
- export REDIS_USERNAME="" #default empty

- export HS_REDIS_IF_EXTERNAL=true # Declare the use of external object storage to replace HENGSHI MinIO
```

### K8s Deployment:

Modify the following configuration items in the `configmap` under the `hengshi` namespace for `hengshi-sense`:

```shell
data:
  ENABLE_REFERENCE_DATASET: 'true'
  EVEREST_HISTORY_LOG_RESERVED_DAYS: '1'
  ....
  REDIS_HOST: "xxx"
  REDIS_PORT: "xxx"
  REDIS_PASSWORD: "xxx"
  REDIS_DATABASE: "xxx"
  REDIS_USERNAME: "" #default empty

  HS_REDIS_IF_EXTERNAL: true # Declare the use of external object storage to replace HENGSHI MinIO
```

> **Note:**
> After modifying the parameters, you need to restart HENGSHI SENSE for the changes to take effect.