Quotas and limits

Managed Service for ClickHouse has the following limits:

• Quotas are organizational restrictions that can be changed by technical support on request.
• Limits are technical restrictions due to the Yandex.Cloud architecture specifics. The limits cannot be changed.

You can view your current account quotas in the management console.

Quotas

Type of limit	Value
Number of clusters per cloud	16
Total number of processor cores for all DB hosts per cloud	64
Total virtual memory for all DB hosts per cloud	512 GB
Total storage capacity for all clusters per cloud	4096 GB

Limits

Type of limit	Value
Lowest host class	b1.nano (5% × 2 vCPU Intel Broadwell, 2 GB RAM)
Highest host class	m2.8xlarge (64 vCPU Intel Cascade Lake, 512 GB RAM)
Maximum number of shards per cluster	10
Maximum number of hosts per shard	7
Maximum number of hosts per cluster	73 (10 shards × 7 hosts + 3 ZooKeeper hosts)
Maximum amount of data when using network storage	4096 GB
Maximum amount of data when using local storage	1400 GB