content/commands/pubsub-numpat.md
Returns the number of unique patterns that are subscribed to by clients (that are performed using the [PSUBSCRIBE]({{< relref "/commands/psubscribe" >}}) command).
Note that this isn't the count of clients subscribed to patterns, but the total number of unique patterns all the clients are subscribed to.
Cluster note: in a Redis Cluster clients can subscribe to every node, and can also publish to every other node. The cluster will make sure that published messages are forwarded as needed. That said, [PUBSUB]({{< relref "/commands/pubsub" >}})'s replies in a cluster only report information from the node's Pub/Sub context, rather than the entire cluster.
| Redis Software | Redis Cloud | <span style="min-width: 9em; display: table-cell">Notes</span> | |:----------------------|:-----------------|:------| | <span title="Supported">✅ Standard</span> <span title="Supported"><nobr>✅ Active-Active</nobr></span> | <span title="Supported">✅ Standard</span> <span title="Supported"><nobr>✅ Active-Active</nobr></span> | |
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Integer reply: the number of patterns all the clients are subscribed to.
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Integer reply: the number of patterns all the clients are subscribed to.
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