[Yandex Cloud documentation](../../index.md) > [Yandex MetaData Hub](../index.md) > Quotas and limits

# Quotas in Yandex MetaData Hub

Yandex MetaData Hub has the following limits:

* [_Quotas_](https://console.yandex.cloud/cloud?section=quotas) are organizational constraints that can be changed by support on request.

## Connection Manager quotas {#connection-manager-quota}

#|
|| Quota | Value ||
|| Total number of connections per cloud 
`connection-manager.totalConnections.count` | 1,000 ||
|#

## Apache Hive™ Metastore quotas {#metastore-quota}

#|
|| Type of limit | Value ||
|| Number of clusters per cloud
`managed-metastore.clusters.count` | 5 ||
|#

## Schema Registry quotas {#schema-registry-quota}

This feature is in the [Preview](../../overview/concepts/launch-stages.md) stage.

#|
|| Quota | Value ||
|| Total number of namespaces per cloud 
`schema-registry.namespaces.count` | 32 ||
|| Total number of schemas per cloud 
`schema-registry.schemas.count` | 10,240 ||
|#

## Data Catalog quotas {#data-catalog-quota}

This feature is in the [Preview](../../overview/concepts/launch-stages.md) stage.

#|
|| Quota | Value ||
|| Total number of metadata catalogs per cloud
`data-catalog.datacatalogs.count` | 5 ||
|| Total number of metadata sets per catalog 
`data-catalog.assets.count` | 100,000 ||
|| Total number of classifications per catalog
`data-catalog.classifications.count` | 1,000 ||
|| Total number of glossaries per catalog
`data-catalog.glossaries.count` | 1,000 ||
|| Total number of ingestions per catalog
`data-catalog.ingestions.count` | 100 ||
|| Total number of ingestion sources per catalog
`data-catalog.ingestion_sources.count` | 100 ||
|| Total number of metadata links per catalog
`data-catalog.lineages.count` | 100,000 ||
|| Total number of tags per catalog
`data-catalog.tags.count` | 1,000 ||
|| Total number of domains per catalog
`data-catalog.domains.count` | 1,000 ||
|| Total number of terms per catalog
`data-catalog.terms.count` | 1,000 ||

|#

If you need more resources, you can increase your quotas in one of the following ways:

* [Make a request to increase your quotas](https://console.yandex.cloud/cloud?section=quotas).
* Contact [support](https://center.yandex.cloud/support) and specify which quotas you want increased and by how much.

To have your request processed, you must have the `quota-manager.requestOperator` [role](../../iam/roles-reference.md#quota-manager-requestoperator) or higher, e.g., `editor` or `admin`.

You can manage your quotas with [Cloud Quota Manager](../../quota-manager/quickstart.md).

_Apache® and [Apache Hive™](https://hive.apache.org/) are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries._