[Yandex Cloud documentation](../../index.md) > [Yandex Managed Service for Apache Airflow™](../index.md) > [Concepts](index.md) > Quotas and limits

# Quotas and limits in Managed Service for Apache Airflow™

Yandex Cloud has the following limits:

* [_Quotas_](https://console.yandex.cloud/cloud?section=quotas) are organizational constraints that can be changed by contacting technical support.
* _Limits_ are technical constraints of the Yandex Cloud architecture. You cannot change the limits.

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).

#### Quotas {#quotas}

#|
|| Type of limit | Value ||
|| Number of clusters per cloud 
`managed-airflow.clusters.count` | 5 ||
|| Total number of processor cores for all cluster components per cloud 
`managed-airflow.cpu.count` | 128 ||
|| Total virtual memory for all cluster components per cloud 
`managed-airflow.memory.size` | 256 GB ||
|#

#### Limits {#limits}

Type of limit | Maximum value
--- | ---
Total number of processor cores for all cluster components | 104
Total virtual memory for all cluster components | 416 GB
Total amount of data in the cluster metadata storage | 50 GB