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What ECS Specifications Are Supported by MRS?

Updated at: Sep 11, 2019 GMT+08:00

MRS provides optimal specifications based on extensive experience in big data product optimization. Host specifications are determined by CPUs, memory, and disks. Currently, the following specifications are supported:

MRS uses ECSs of the following types in different application scenarios.

  • General computing (S3)
  • General computing-plus (C3)
  • Disk-intensive (D2)
  • High-performance computing (Hc2)
  • Memory-optimized (M3)

ECS Flavor Naming Rules

ECS flavors are named using the format "AB.C.D".

Example: m2.8xlarge.8

The format is defined as follows:

  • A specifies the ECS type. For example, s indicates a general-purpose ECS, c a computing ECS, and m a memory-optimized ECS.
  • B specifies the type ID. For example, the 1 in s1 indicates a general-purpose first-generation ECS, and the 2 in s2 indicates a general-purpose second-generation ECS.
  • C specifies a flavor size and can be any of the following options: medium, large, and xlarge
  • D specifies the ratio of memory to vCPUs expressed in a digit. For example, value 4 indicates that the ratio of memory to vCPUs is 4.

Specifications

Table 1 General computing ECS specifications

ECS Type

vCPUs

Memory (GB)

Flavor

Virtualization Type

S3

4

8

s3.xlarge.2

KVM

8

16

s3.2xlarge.2

KVM

16

32

s3.4xlarge.2

KVM

4

16

s3.xlarge.4

KVM

16

64

s3.4xlarge.4

KVM

Table 2 General computing-plus (C3) ECS specifications

ECS Type

vCPUs

Memory (GB)

Flavor

Virtualization Type

C3

4

8

c3.xlarge.2

KVM

16

32

c3.4xlarge.2

KVM

4

16

c3.xlarge.4

KVM

8

32

c3.2xlarge.4

KVM

16

64

c3.4xlarge.4

KVM

32

128

c3.8xlarge.4

KVM

60

256

c3.15xlarge.4

KVM

Table 3 D2 ECS specifications

ECS Type

vCPUs

Memory (GB)

Flavor

Virtualization Type

Local Disk (GB)

Hardware

D2

8

64

d2.2xlarge.8

KVM

4×1800

CPU: Intel® Xeon® Gold 6151 Processor v5

Memory: 20 × 32 GB

16

128

d2.4xlarge.8

KVM

8×1800

Table 4 High-performance computing (Hc2) ECS specifications

Type

vCPUs

Memory (GB)

Flavor

Virtualization Type

Hc2

8

16

hc2.2xlarge.2

KVM

16

32

hc2.4xlarge.2

KVM

32

64

hc2.8xlarge.2

KVM

Table 5 Memory-optimized (M3) ECS specifications

Type

vCPUs

Memory (GB)

Flavor

Virtualization Type

M3

2

16

m3.large.8

KVM

4

32

m3.xlarge.8

KVM

8

64

m3.2xlarge.8

KVM

16

128

m3.4xlarge.8

KVM

32

256

m3.8xlarge.8

KVM

60

512

m3.15xlarge.8

KVM

More advanced host specifications enable better data processing, and accordingly require higher cluster costs. You can choose host specifications based on site requirements.

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