# CLUSTER COUNTKEYSINSLOT

```json metadata
{
  "title": "CLUSTER COUNTKEYSINSLOT",
  "description": "Returns the number of keys in a hash slot.",
  "categories": ["docs","develop","stack","oss","rs","rc","oss","kubernetes","clients"],
  "arguments": [{"display_text":"slot","name":"slot","type":"integer"}],
  "syntax_fmt": "CLUSTER COUNTKEYSINSLOT slot",
  "complexity": "O(1)",
  "group": "cluster",
  "command_flags": ["stale"],
  "acl_categories": ["@slow"],
  "since": "3.0.0",
  "arity": 3,
  "tableOfContents": {"sections":[{"id":"redis-enterprise-and-redis-cloud-compatibility","title":"Redis Enterprise and Redis Cloud compatibility"},{"id":"return-information","title":"Return information"}]}
}
```













Returns the number of keys in the specified Redis Cluster hash slot. The
command only queries the local data set, so contacting a node
that is not serving the specified hash slot will always result in a count of
zero being returned.

During atomic slot migration operations (available since Redis 8.4.0), keys being imported or trimmed will be filtered out from the results.


```
> CLUSTER COUNTKEYSINSLOT 7000
(integer) 50341
```

## Redis Enterprise and Redis Cloud compatibility

| Redis<br />Enterprise | Redis<br />Cloud | <span style="min-width: 9em; display: table-cell">Notes</span> |
|:----------------------|:-----------------|:------|
| <span title="Not supported">&#x274c; Standard</span><br /><span title="Not supported"><nobr>&#x274c; Active-Active</nobr></span> | <span title="Not supported">&#x274c; Standard</span><br /><span title="Not supported"><nobr>&#x274c; Active-Active</nobr></span> |  |

## Return information

{{< multitabs id="cluster-countkeysinslot-return-info" 
    tab1="RESP2" 
    tab2="RESP3" >}}

[Integer reply](../../develop/reference/protocol-spec#integers): The number of keys in the specified hash slot, or an error if the hash slot is invalid.

-tab-sep-

[Integer reply](../../develop/reference/protocol-spec#integers): The number of keys in the specified hash slot, or an error if the hash slot is invalid.