Managed Service for Trino host classes

The host class determines the computing power allocated for each host in a cluster.

For more information on limits, see Quotas and limits.

Available host classesAvailable host classes

The following types of host classes are available:

• standard
• memory-optimized
• legacy

The standard and memory-optimized classes are located on the AMD Zen 4 platform. Their names have the v4a- prefix. The legacy type covers the previous generation classes on Intel Ice Lake. For more information, see Platforms.

Standard and memory-optimized classes on AMD Zen 4Standard and memory-optimized classes on AMD Zen 4

For the standard and memory-optimized classes, the number of vCPUs and amount of RAM in the class name match the VM resources. A part of these resources is allocated to Managed Service for Trino's service components. When calculating a cluster's required resources, use values from the Available to Trino component columns.

It has to do with the platform's architectural features and does not affect billing: you are charged based on the values from the Available to Trino component columns. For example, for the v4a-c8-m32 host class, the Trino has 6 vCPUs and 26 GB RAM available; the same values are used for billing.

To select a host class, map the workload requirements to the resources available to the Trino component. Use these values when configuring workloads and resource groups.

standardstandard

memory-optimizedmemory-optimized

Legacy classes on Intel Ice LakeLegacy classes on Intel Ice Lake

For the legacy classes, the numbers in the class name match the resources available to the Trino component. For example, in the c16-m64 class, the component has 16 vCPUs and 64 GB RAM available.