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Docs: Update Info on How to use FLUSHALL command with createCluster #2557

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Docs: Update Info on How to use FLUSHALL command with createCluster #2557

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15 changes: 15 additions & 0 deletions docs/clustering.md
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Expand Up @@ -113,6 +113,21 @@ Commands such as `GET`, `SET`, etc. are routed by the first key, for instance `M

Admin commands such as `MEMORY STATS`, `FLUSHALL`, etc. are not attached to the cluster, and must be executed on a specific node via `.getSlotMaster()`.

#Here is an example of how to FLUSHALL the cluster:

```javascript
await Promise.all(
cluster.masters.map(async item => {
const client = await cluster.nodeClient(item)
await client.flushAll();
});
);
```
The `cluster.masters` refers to the total number of master nodes in the Redis cluster.
The `cluster.replicas` indicates the total number of replica nodes in the Redis cluster
The `cluster.shards` refers to the number of shards in the Redis cluster.
The `cluster.slots` indicates the total number of slots in the Redis cluster.

### "Forwarded Commands"

Certain commands (e.g. `PUBLISH`) are forwarded to other cluster nodes by the Redis server. This client sends these commands to a random node in order to spread the load across the cluster.