The following table describes restrictions on clusters and nodes in CSS.

**Table 1** Restrictions on Elasticsearch clusters and nodes
Cluster and Node	Restriction
Maximum number of nodes in a cluster	32
Minimum number of nodes in a cluster	1

You are advised to use the following browsers to access the CSS management console:
- Google Chrome 36.0 or later
- Mozilla Firefox 35.0 or later
You are advised to use the following browsers to access Kibana integrated in CSS:
- Google Chrome 36.0 or later
- Mozilla Firefox 35.0 or later

Constraints