Host classes
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The host class determines the computing power allocated for each host in the cluster. When you change the host class for a cluster, all existing hosts change to match it.
The available storage doesn't depend on the host class. For storage limitations, see Quotas and limits in Managed Service for Apache Kafka®.
Available host classes
Hosts in Managed Service for Apache Kafka® clusters are deployed on Yandex Compute Cloud VMs. You can create these VMs on any of the platforms that Compute Cloud supports. For a detailed description of the platforms, see Platforms.
The full list of possible host configurations on each platform is provided below.
Configuration types:
- s2, s3: Standard configurations, with 4:1 GB RAM to vCPU ratio.
- m2, m3: Configurations with an increased GB RAM to vCPU ratio (8:1). These configurations can be useful for clusters with higher cache requirements.
- b2: Configurations with a guaranteed vCPU share under 100%. This class of hosts is intended for test load, with the minimum recommended host configuration for production solutions being 2 vCPUs with a guaranteed share of 50%.
| Host class name | Number of vCPUs | Guaranteed vCPU performance | RAM, GB |
|---|---|---|---|
| Intel Cascade Lake | |||
| b2.medium | 2 | 50% | 4 |
| m2.micro | 2 | 100% | 16 |
| m2.small | 4 | 100% | 32 |
| m2.medium | 6 | 100% | 48 |
| m2.large | 8 | 100% | 64 |
| m2.xlarge | 12 | 100% | 96 |
| m2.2xlarge | 16 | 100% | 128 |
| m2.3xlarge | 24 | 100% | 192 |
| m2.4xlarge | 32 | 100% | 256 |
| m2.5xlarge | 40 | 100% | 320 |
| m2.6xlarge | 48 | 100% | 384 |
| m2.7xlarge | 56 | 100% | 448 |
| m2.8xlarge | 64 | 100% | 512 |
| s2.micro | 2 | 100% | 8 |
| s2.small | 4 | 100% | 16 |
| s2.medium | 8 | 100% | 32 |
| s2.large | 12 | 100% | 48 |
| s2.xlarge | 16 | 100% | 64 |
| s2.2xlarge | 24 | 100% | 96 |
| s2.3xlarge | 32 | 100% | 128 |
| s2.4xlarge | 40 | 100% | 160 |
| s2.5xlarge | 48 | 100% | 192 |
| s2.6xlarge | 64 | 100% | 256 |
| Intel Ice Lake | |||
| b3-c1-m4 | 2 | 50% | 4 |
| s3-c2-m8 | 2 | 100% | 8 |
| s3-c4-m16 | 4 | 100% | 16 |
| s3-c8-m32 | 8 | 100% | 32 |
| s3-c12-m48 | 12 | 100% | 48 |
| s3-c16-m64 | 16 | 100% | 64 |
| s3-c24-m96 | 24 | 100% | 96 |
| s3-c32-m128 | 32 | 100% | 128 |
| s3-c40-m160 | 40 | 100% | 160 |
| s3-c48-m192 | 48 | 100% | 192 |
| s3-c64-m256 | 64 | 100% | 256 |
| s3-c80-m320 | 80 | 100% | 320 |
| s3-c96-m576 | 96 | 100% | 576 |
| m3-c2-m16 | 2 | 100% | 16 |
| m3-c4-m32 | 4 | 100% | 32 |
| m3-c6-m48 | 6 | 100% | 48 |
| m3-c8-m64 | 8 | 100% | 64 |
| m3-c12-m96 | 12 | 100% | 96 |
| m3-c16-m128 | 16 | 100% | 128 |
| m3-c24-m192 | 24 | 100% | 192 |
| m3-c32-m256 | 32 | 100% | 256 |
| m3-c40-m320 | 40 | 100% | 320 |
| m3-c48-m384 | 48 | 100% | 384 |
| m3-c56-m448 | 56 | 100% | 448 |
| m3-c64-m512 | 64 | 100% | 512 |
| m3-c80-m640 | 80 | 100% | 640 |