Traditionally, running AI, Machine Learning, or large-scale data analytics tasks requires moving data to an external computing cluster. This process increases architectural complexity and adds data transfer costs and latency. PolarDB for PostgreSQL and integrate a Ray application (known as PolarDB Ray). This lets you run these complex workloads directly within the database using the Python ecosystem and the Ray distributed computing framework. This approach significantly improves data processing and AI inference efficiency and effectively reduces costs.
Overview
Ray is an open-source distributed computing framework for large-scale AI and Python applications. PolarDB features a built-in Ray application that tightly integrates the framework with the database. This lets you write and execute Python code directly in the database, using a rich ecosystem of AI and machine learning (ML) libraries such as Pandas, NumPy, Scikit-learn, and PyTorch to process data. You can perform tasks such as model training, data preprocessing, and complex vector computation entirely within the database, without moving data to an external computing environment.
Advantages
-
Serverless Architecture: Combines Steady-state Nodes for consistent workloads, which do not scale in, with Agile Nodes that scale automatically based on real-time traffic. This design achieves both reliability and cost-efficiency.
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High Availability: The Ray Head node supports high availability and disaster recovery capabilities, ensuring the stable operation of the cluster.
-
Security and Reliability
-
Provides runtime isolation through Secure Containers, ensuring a secure code execution environment.
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Supports multi-tenant isolation to prevent data leakage between tenants.
-
Access to the Ray Dashboard and Ray Job submissions is secured with Username/Password and JWT authentication to prevent unauthorized access.
-
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Integrated Metadata Management: The service runs in the same Virtual Private Cloud (VPC) as your PolarDB Cluster. Metadata processed by PolarDB Ray can be stored directly in the PolarDB Cluster, enabling seamless data exchange without any additional network configuration.
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Unified Resource Pool: Offers a Unified Resource Pool for CPUs and supports GPU Workers, providing resource flexibility for diverse computing tasks.
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Storage Service: Supports mounting the high-performance edition of PolarDB File System 2.0, enabling direct data access through a file interface.
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Open-Source Customization: As a downstream project of open-source Ray, PolarDB Ray is seamlessly compatible with the Ray ecosystem. It also offers customized optimizations and enhancements for developers.
Scope
This feature is available for centralized PolarDB for PostgreSQL clusters, but not for PolarDB for PostgreSQL Distributed Edition clusters.
Billing
-
Component Fee: A Ray Application is billed separately for its Head Node and each Worker Node. The cost depends on the Component Specification (CPU and Memory) and the selected purchase duration.
Single Component Pricing
Chinese mainland
Specification
CPU and memory
Subscription (CNY/month)
Pay-as-you-go (CNY/hour)
polar.app.g2.medium
2 cores 4 GB
250
0.52
polar.app.g4.medium
2 cores 8 GB
270
0.56
polar.app.g8.medium
2 cores 16 GB
330
0.6875
polar.app.g2.large
4 cores 8 GB
475
0.99
polar.app.g4.large
4 cores 16 GB
630
1.31
polar.app.g8.large
4 cores 32 GB660
1.375
polar.app.g2.xlarge
8 cores 16 GB
1,000
2.08
polar.app.g4.xlarge
8 cores 32 GB
1,240
2.58
polar.app.g8.xlarge
8 cores 64 GB1,320
2.75
polar.app.g2.2xlarge
16 cores 32 GB
2,000
4.17
polar.app.g4.2xlarge
16 cores 64 GB
2,400
5.00
polar.app.g8.2xlarge
16 cores 128 GB2,640
5.5
polar.app.g2.4xlarge
32 cores 64 GB
4,000
8.32
polar.app.g4.4xlarge
32 cores 128 GB
4,320
8.96
polar.app.g8.4xlarge
32 cores 256 GB5,280
11
polar.app.g4.6xlarge
48 cores 192 GB
6,000
12.48
polar.app.g8.6xlarge
48 cores 384 GB
6,480
13.44
polar.app.g2.8xlarge
64 cores 128 GB
8,000
16.64
polar.app.g4.8xlarge
64 cores 256 GB
8,640
17.92
polar.app.g8.8xlarge
64 cores 512 GB
14,080
29.32
polar.app.g8.12xlarge
88 cores 710 GB
19,360
40.31
polar.app.g8.15xlarge
120 cores 920 GB
26,400
54.98
polar.app.g8.23xlarge
180 cores 1440 GB
39,600
82.46
China (Hong Kong)
Node type
vCPU / memory
Subscription (CNY/month)
Pay-as-you-go (CNY/hour)
polar.app.g2.medium
2 vCPUs 4 GB
400
0.832
polar.app.g4.medium
2 vCPUs 8 GB
432
0.896
polar.app.g8.medium
2 vCPUs 16 GB528
1.1
polar.app.g2.large
4 vCPUs 8 GB
760
1.584
polar.app.g4.large
4 vCPUs 16 GB
1,008
2.096
polar.app.g8.large
4 vCPUs 32 GB1,056
2.2
polar.app.g2.xlarge
8 vCPUs 16 GB
1,600
3.33
polar.app.g4.xlarge
8 vCPUs 32 GB
1,984
4.13
polar.app.g8.xlarge
8 vCPUs 64 GB2,112
4.4
polar.app.g2.2xlarge
16 vCPUs 32 GB
3,200
6.67
polar.app.g4.2xlarge
16 vCPUs 64 GB
3,840
8
polar.app.g8.2xlarge
16 vCPUs 128 GB4,224
8.8
polar.app.g2.4xlarge
32 vCPUs 64 GB
6,400
13.31
polar.app.g4.4xlarge
32 vCPUs 128 GB
6,912
14.34
polar.app.g8.4xlarge
32 vCPUs 256 GB8,448
17.6
polar.app.g4.6xlarge
48 vCPUs 192 GB
9,600
19.97
polar.app.g8.6xlarge
48 vCPUs 384 GB
10,368
21.5
polar.app.g2.8xlarge
64 vCPUs 128 GB
12,800
26.62
polar.app.g4.8xlarge
64 vCPUs 256 GB
13,824
28.67
polar.app.g8.8xlarge
64 vCPUs 512 GB
22,528
46.91
polar.app.g8.12xlarge
88 vCPUs 710 GB
30,976
64.5
polar.app.g8.15xlarge
120 vCPUs 920 GB
42,240
87.97
polar.app.g8.23xlarge
180 vCPUs 1800 GB
63,360
131.94
Japan (Tokyo)
Node type
vCPU / memory
Subscription (CNY/month)
Pay-as-you-go (CNY/hour)
polar.app.g2.medium
2 vCPUs 4 GB
400
0.832
polar.app.g4.medium
2 vCPUs 8 GB
432
0.896
polar.app.g8.medium
2 vCPUs 16 GB528
1.1
polar.app.g2.large
4 vCPUs 8 GB
760
1.584
polar.app.g4.large
4 vCPUs 16 GB
1,008
2.096
polar.app.g8.large
4 vCPUs 32 GB1,056
2.2
polar.app.g2.xlarge
8 vCPUs 16 GB
1,600
3.33
polar.app.g4.xlarge
8 vCPUs 32 GB
1,984
4.13
polar.app.g8.xlarge
8 vCPUs 64 GB2,112
4.4
polar.app.g2.2xlarge
16 vCPUs 32 GB
3,200
6.67
polar.app.g4.2xlarge
16 vCPUs 64 GB
3,840
8
polar.app.g8.2xlarge
16 vCPUs 128 GB4,224
8.8
polar.app.g2.4xlarge
32 vCPUs 64 GB
6,400
13.31
polar.app.g4.4xlarge
32 vCPUs 128 GB
6,912
14.34
polar.app.g8.4xlarge
32 vCPUs 256 GB8,448
17.6
polar.app.g4.6xlarge
48 vCPUs 192 GB
9,600
19.97
polar.app.g8.6xlarge
48 vCPUs 384 GB
10,368
21.5
polar.app.g2.8xlarge
64 vCPUs 128 GB
12,800
26.62
polar.app.g4.8xlarge
64 vCPUs 256 GB
13,824
28.67
polar.app.g8.8xlarge
64 vCPUs 512 GB
22,528
46.91
polar.app.g8.12xlarge
88 vCPUs 710 GB
30,976
64.5
polar.app.g8.15xlarge
120 vCPUs 920 GB
42,240
87.97
polar.app.g8.23xlarge
180 vCPUs 1800 GB
63,360
131.94
Korea (Seoul)
Node type
vCPU / memory
Subscription (CNY/month)
Pay-as-you-go (CNY/hour)
polar.app.g2.medium
2 vCPUs 4 GB
400
0.832
polar.app.g4.medium
2 vCPUs 8 GB
432
0.896
polar.app.g8.medium
2 vCPUs 16 GB528
1.1
polar.app.g2.large
4 vCPUs 8 GB
760
1.584
polar.app.g4.large
4 vCPUs 16 GB
1,008
2.096
polar.app.g8.large
4 vCPUs 32 GB1,056
2.2
polar.app.g2.xlarge
8 vCPUs 16 GB
1,600
3.33
polar.app.g4.xlarge
8 vCPUs 32 GB
1,984
4.13
polar.app.g8.xlarge
8 vCPUs 64 GB2,112
4.4
polar.app.g2.2xlarge
16 vCPUs 32 GB
3,200
6.67
polar.app.g4.2xlarge
16 vCPUs 64 GB
3,840
8
polar.app.g8.2xlarge
16 vCPUs 128 GB4,224
8.8
polar.app.g2.4xlarge
32 vCPUs 64 GB
6,400
13.31
polar.app.g4.4xlarge
32 vCPUs 128 GB
6,912
14.34
polar.app.g8.4xlarge
32 vCPUs 256 GB8,448
17.6
polar.app.g4.6xlarge
48 vCPUs 192 GB
9,600
19.97
polar.app.g8.6xlarge
48 vCPUs 384 GB
10,368
21.5
polar.app.g2.8xlarge
64 vCPUs 128 GB
12,800
26.62
polar.app.g4.8xlarge
64 vCPUs 256 GB
13,824
28.67
polar.app.g8.8xlarge
64 vCPUs 512 GB
22,528
46.91
polar.app.g8.12xlarge
88 vCPUs 710 GB
30,976
64.5
polar.app.g8.15xlarge
120 vCPUs 920 GB
42,240
87.97
polar.app.g8.23xlarge
180 vCPUs 1800 GB
63,360
131.94
Singapore
Node type
vCPU / memory
Subscription (CNY/month)
Pay-as-you-go (CNY/hour)
polar.app.g2.medium
2 vCPUs 4 GB
400
0.832
polar.app.g4.medium
2 vCPUs 8 GB
432
0.896
polar.app.g8.medium
2 vCPUs 16 GB528
1.1
polar.app.g2.large
4 vCPUs 8 GB
760
1.584
polar.app.g4.large
4 vCPUs 16 GB
1,008
2.096
polar.app.g8.large
4 vCPUs 32 GB1,056
2.2
polar.app.g2.xlarge
8 vCPUs 16 GB
1,600
3.33
polar.app.g4.xlarge
8 vCPUs 32 GB
1,984
4.13
polar.app.g8.xlarge
8 vCPUs 64 GB2,112
4.4
polar.app.g2.2xlarge
16 vCPUs 32 GB
3,200
6.67
polar.app.g4.2xlarge
16 vCPUs 64 GB
3,840
8
polar.app.g8.2xlarge
16 vCPUs 128 GB4,224
8.8
polar.app.g2.4xlarge
32 vCPUs 64 GB
6,400
13.31
polar.app.g4.4xlarge
32 vCPUs 128 GB
6,912
14.34
polar.app.g8.4xlarge
32 vCPUs 256 GB8,448
17.6
polar.app.g4.6xlarge
48 vCPUs 192 GB
9,600
19.97
polar.app.g8.6xlarge
48 vCPUs 384 GB
10,368
21.5
polar.app.g2.8xlarge
64 vCPUs 128 GB
12,800
26.62
polar.app.g4.8xlarge
64 vCPUs 256 GB
13,824
28.67
polar.app.g8.8xlarge
64 vCPUs 512 GB
22,528
46.91
polar.app.g8.12xlarge
88 vCPUs 710 GB
30,976
64.5
polar.app.g8.15xlarge
120 vCPUs 920 GB
42,240
87.97
polar.app.g8.23xlarge
180 vCPUs 1800 GB
63,360
131.94
Malaysia (Kuala Lumpur)
Node type
vCPU / memory
Subscription (CNY/month)
Pay-as-you-go (CNY/hour)
polar.app.g2.medium
2 vCPUs 4 GB
400
0.832
polar.app.g4.medium
2 vCPUs 8 GB
432
0.896
polar.app.g8.medium
2 vCPUs 16 GB528
1.1
polar.app.g2.large
4 vCPUs 8 GB
760
1.584
polar.app.g4.large
4 vCPUs 16 GB
1,008
2.096
polar.app.g8.large
4 vCPUs 32 GB1,056
2.2
polar.app.g2.xlarge
8 vCPUs 16 GB
1,600
3.33
polar.app.g4.xlarge
8 vCPUs 32 GB
1,984
4.13
polar.app.g8.xlarge
8 vCPUs 64 GB2,112
4.4
polar.app.g2.2xlarge
16 vCPUs 32 GB
3,200
6.67
polar.app.g4.2xlarge
16 vCPUs 64 GB
3,840
8
polar.app.g8.2xlarge
16 vCPUs 128 GB4,224
8.8
polar.app.g2.4xlarge
32 vCPUs 64 GB
6,400
13.31
polar.app.g4.4xlarge
32 vCPUs 128 GB
6,912
14.34
polar.app.g8.4xlarge
32 vCPUs 256 GB8,448
17.6
polar.app.g4.6xlarge
48 vCPUs 192 GB
9,600
19.97
polar.app.g8.6xlarge
48 vCPUs 384 GB
10,368
21.5
polar.app.g2.8xlarge
64 vCPUs 128 GB
12,800
26.62
polar.app.g4.8xlarge
64 vCPUs 256 GB
13,824
28.67
polar.app.g8.8xlarge
64 vCPUs 512 GB
22,528
46.91
polar.app.g8.12xlarge
88 vCPUs 710 GB
30,976
64.5
polar.app.g8.15xlarge
120 vCPUs 920 GB
42,240
87.97
polar.app.g8.23xlarge
180 vCPUs 1800 GB
63,360
131.94
Indonesia (Jakarta)
Specification code
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g2.medium
2 cores 4 GB
350
0.728
polar.app.g4.medium
2 cores 8 GB
378
0.784
polar.app.g8.medium
2 cores 16 GB462
0.9625
polar.app.g2.large
4 cores 8 GB
665
1.386
polar.app.g4.large
4 cores 16 GB
882
1.834
polar.app.g8.large
4 cores 32 GB924
1.925
polar.app.g2.xlarge
8 cores 16 GB
1,400
2.910
polar.app.g4.xlarge
8 cores 32 GB
1,736
3.610
polar.app.g8.xlarge
8 cores 64 GB1,848
3.850
polar.app.g2.2xlarge
16 cores 32 GB
2,800
5.840
polar.app.g4.2xlarge
16 cores 64 GB
3,360
7.000
polar.app.g8.2xlarge
16 cores 128 GB3,696
7.700
polar.app.g2.4xlarge
32 cores 64 GB
5,600
11.65
polar.app.g4.4xlarge
32 cores 128 GB
6,048
12.54
polar.app.g8.4xlarge
32 cores 256 GB7,392
15.400
polar.app.g4.6xlarge
48 cores 192 GB
8,400
17.47
polar.app.g8.6xlarge
48 cores 384 GB
9,072
18.82
polar.app.g2.8xlarge
64 cores 128 GB
11,200
23.30
polar.app.g4.8xlarge
64 cores 256 GB
12,096
25.09
polar.app.g8.8xlarge
64 cores 512 GB
19,712
41.05
polar.app.g8.12xlarge
88 cores 710 GB
27,104
56.43
polar.app.g8.15xlarge
120 cores 920 GB
36,960
76.97
polar.app.g8.23xlarge
180 cores 1800 GB
55,440
115.44
Philippines (Manila)
Specification code
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g2.medium
2 cores 4 GB
350
0.728
polar.app.g4.medium
2 cores 8 GB
378
0.784
polar.app.g8.medium
2 cores 16 GB462
0.9625
polar.app.g2.large
4 cores 8 GB
665
1.386
polar.app.g4.large
4 cores 16 GB
882
1.834
polar.app.g8.large
4 cores 32 GB924
1.925
polar.app.g2.xlarge
8 cores 16 GB
1,400
2.910
polar.app.g4.xlarge
8 cores 32 GB
1,736
3.610
polar.app.g8.xlarge
8 cores 64 GB1,848
3.850
polar.app.g2.2xlarge
16 cores 32 GB
2,800
5.840
polar.app.g4.2xlarge
16 cores 64 GB
3,360
7.000
polar.app.g8.2xlarge
16 cores 128 GB3,696
7.700
polar.app.g2.4xlarge
32 cores 64 GB
5,600
11.65
polar.app.g4.4xlarge
32 cores 128 GB
6,048
12.54
polar.app.g8.4xlarge
32 cores 256 GB7,392
15.400
polar.app.g4.6xlarge
48 cores 192 GB
8,400
17.47
polar.app.g8.6xlarge
48 cores 384 GB
9,072
18.82
polar.app.g2.8xlarge
64 cores 128 GB
11,200
23.30
polar.app.g4.8xlarge
64 cores 256 GB
12,096
25.09
polar.app.g8.8xlarge
64 cores 512 GB
19,712
41.05
polar.app.g8.12xlarge
88 cores 710 GB
27,104
56.43
polar.app.g8.15xlarge
120 cores 920 GB
36,960
76.97
polar.app.g8.23xlarge
180 cores 1800 GB
55,440
115.44
Thailand (Bangkok)
Specification code
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g2.medium
2 cores 4 GB
350
0.728
polar.app.g4.medium
2 cores 8 GB
378
0.784
polar.app.g8.medium
2 cores 16 GB462
0.9625
polar.app.g2.large
4 cores 8 GB
665
1.386
polar.app.g4.large
4 cores 16 GB
882
1.834
polar.app.g8.large
4 cores 32 GB924
1.925
polar.app.g2.xlarge
8 cores 16 GB
1,400
2.910
polar.app.g4.xlarge
8 cores 32 GB
1,736
3.610
polar.app.g8.xlarge
8 cores 64 GB1,848
3.850
polar.app.g2.2xlarge
16 cores 32 GB
2,800
5.840
polar.app.g4.2xlarge
16 cores 64 GB
3,360
7.000
polar.app.g8.2xlarge
16 cores 128 GB3,696
7.700
polar.app.g2.4xlarge
32 cores 64 GB
5,600
11.65
polar.app.g4.4xlarge
32 cores 128 GB
6,048
12.54
polar.app.g8.4xlarge
32 cores 256 GB7,392
15.400
polar.app.g4.6xlarge
48 cores 192 GB
8,400
17.47
polar.app.g8.6xlarge
48 cores 384 GB
9,072
18.82
polar.app.g2.8xlarge
64 cores 128 GB
11,200
23.30
polar.app.g4.8xlarge
64 cores 256 GB
12,096
25.09
polar.app.g8.8xlarge
64 cores 512 GB
19,712
41.05
polar.app.g8.12xlarge
88 cores 710 GB
27,104
56.43
polar.app.g8.15xlarge
120 cores 920 GB
36,960
76.97
polar.app.g8.23xlarge
180 cores 1800 GB
55,440
115.44
Germany (Frankfurt)
Specification code
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g2.medium
2 cores 4 GB
350
0.728
polar.app.g4.medium
2 cores 8 GB
378
0.784
polar.app.g8.medium
2 cores 16 GB462
0.9625
polar.app.g2.large
4 cores 8 GB
665
1.386
polar.app.g4.large
4 cores 16 GB
882
1.834
polar.app.g8.large
4 cores 32 GB924
1.925
polar.app.g2.xlarge
8 cores 16 GB
1,400
2.910
polar.app.g4.xlarge
8 cores 32 GB
1,736
3.610
polar.app.g8.xlarge
8 cores 64 GB1,848
3.850
polar.app.g2.2xlarge
16 cores 32 GB
2,800
5.840
polar.app.g4.2xlarge
16 cores 64 GB
3,360
7.000
polar.app.g8.2xlarge
16 cores 128 GB3,696
7.700
polar.app.g2.4xlarge
32 cores 64 GB
5,600
11.65
polar.app.g4.4xlarge
32 cores 128 GB
6,048
12.54
polar.app.g8.4xlarge
32 cores 256 GB7,392
15.400
polar.app.g4.6xlarge
48 cores 192 GB
8,400
17.47
polar.app.g8.6xlarge
48 cores 384 GB
9,072
18.82
polar.app.g2.8xlarge
64 cores 128 GB
11,200
23.30
polar.app.g4.8xlarge
64 cores 256 GB
12,096
25.09
polar.app.g8.8xlarge
64 cores 512 GB
19,712
41.05
polar.app.g8.12xlarge
88 cores 710 GB
27,104
56.43
polar.app.g8.15xlarge
120 cores 920 GB
36,960
76.97
polar.app.g8.23xlarge
180 cores 1800 GB
55,440
115.44
UK (London)
Specification code
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g2.medium
2 cores 4 GB
350
0.728
polar.app.g4.medium
2 cores 8 GB
378
0.784
polar.app.g8.medium
2 cores 16 GB462
0.9625
polar.app.g2.large
4 cores 8 GB
665
1.386
polar.app.g4.large
4 cores 16 GB
882
1.834
polar.app.g8.large
4 cores 32 GB924
1.925
polar.app.g2.xlarge
8 cores 16 GB
1,400
2.910
polar.app.g4.xlarge
8 cores 32 GB
1,736
3.610
polar.app.g8.xlarge
8 cores 64 GB1,848
3.850
polar.app.g2.2xlarge
16 cores 32 GB
2,800
5.840
polar.app.g4.2xlarge
16 cores 64 GB
3,360
7.000
polar.app.g8.2xlarge
16 cores 128 GB3,696
7.700
polar.app.g2.4xlarge
32 cores 64 GB
5,600
11.65
polar.app.g4.4xlarge
32 cores 128 GB
6,048
12.54
polar.app.g8.4xlarge
32 cores 256 GB7,392
15.400
polar.app.g4.6xlarge
48 cores 192 GB
8,400
17.47
polar.app.g8.6xlarge
48 cores 384 GB
9,072
18.82
polar.app.g2.8xlarge
64 cores 128 GB
11,200
23.30
polar.app.g4.8xlarge
64 cores 256 GB
12,096
25.09
polar.app.g8.8xlarge
64 cores 512 GB
19,712
41.05
polar.app.g8.12xlarge
88 cores 710 GB
27,104
56.43
polar.app.g8.15xlarge
120 cores 920 GB
36,960
76.97
polar.app.g8.23xlarge
180 cores 1800 GB
55,440
115.44
US (Silicon Valley)
Instance type
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g1.tiny
1 core 1 GB
13.2
0.024
polar.app.g2.small
1 core 2 GB
21.6
0.048
polar.app.g2.medium
2 cores 4 GB
43.2
0.096
polar.app.g4.medium
2 cores 8 GB
324
0.672
polar.app.g8.medium
2 cores 16 GB396
0.825
polar.app.g2.large
4 cores 8 GB
570
1.188
polar.app.g4.large
4 cores 16 GB
756
1.572
polar.app.g8.large
4 cores 32 GB792
1.65
polar.app.g2.xlarge
8 cores 16 GB
1,200
2.50
polar.app.g4.xlarge
8 cores 32 GB
1,488
3.10
polar.app.g8.xlarge
8 cores 64 GB1,584
3.30
polar.app.g2.2xlarge
16 cores 32 GB
2,400
5.00
polar.app.g4.2xlarge
16 cores 64 GB
2,880
6.00
polar.app.g8.2xlarge
16 cores 128 GB3,168
6.60
polar.app.g2.4xlarge
32 cores 64 GB
4,800
9.98
polar.app.g4.4xlarge
32 cores 128 GB
5,184
10.75
polar.app.g8.4xlarge
32 cores 256 GB6,336
13.20
polar.app.g4.6xlarge
48 cores 192 GB
7,200
14.98
polar.app.g8.6xlarge
48 cores 384 GB
7,776
16.13
polar.app.g2.8xlarge
64 cores 128 GB
9,600
19.97
polar.app.g4.8xlarge
64 cores 256 GB
10,368
21.50
polar.app.g8.8xlarge
64 cores 512 GB
16,896
35.18
polar.app.g8.12xlarge
88 cores 710 GB
23,232
48.37
polar.app.g8.15xlarge
120 cores 920 GB
31,680
65.98
polar.app.g8.23xlarge
180 cores 1800 GB
47,520
98.95
US (Virginia)
Instance type
CPU and memory
Subscription (USD/month)
Pay-as-you-go (USD/hour)
polar.app.g1.tiny
1 core 1 GB
13.2
0.024
polar.app.g2.small
1 core 2 GB
21.6
0.048
polar.app.g2.medium
2 cores 4 GB
43.2
0.096
polar.app.g4.medium
2 cores 8 GB
324
0.672
polar.app.g8.medium
2 cores 16 GB396
0.825
polar.app.g2.large
4 cores 8 GB
570
1.188
polar.app.g4.large
4 cores 16 GB
756
1.572
polar.app.g8.large
4 cores 32 GB792
1.65
polar.app.g2.xlarge
8 cores 16 GB
1,200
2.50
polar.app.g4.xlarge
8 cores 32 GB
1,488
3.10
polar.app.g8.xlarge
8 cores 64 GB1,584
3.30
polar.app.g2.2xlarge
16 cores 32 GB
2,400
5.00
polar.app.g4.2xlarge
16 cores 64 GB
2,880
6.00
polar.app.g8.2xlarge
16 cores 128 GB3,168
6.60
polar.app.g2.4xlarge
32 cores 64 GB
4,800
9.98
polar.app.g4.4xlarge
32 cores 128 GB
5,184
10.75
polar.app.g8.4xlarge
32 cores 256 GB6,336
13.20
polar.app.g4.6xlarge
48 cores 192 GB
7,200
14.98
polar.app.g8.6xlarge
48 cores 384 GB
7,776
16.13
polar.app.g2.8xlarge
64 cores 128 GB
9,600
19.97
polar.app.g4.8xlarge
64 cores 256 GB
10,368
21.50
polar.app.g8.8xlarge
64 cores 512 GB
16,896
35.18
polar.app.g8.12xlarge
88 cores 710 GB
23,232
48.37
polar.app.g8.15xlarge
120 cores 920 GB
31,680
65.98
polar.app.g8.23xlarge
180 cores 1800 GB
47,520
98.95
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Storage Fee: While there are no additional charges for data and files generated by the Ray Application, data that a Ray Job writes to a PolarDB for PostgreSQL or Cluster, or to a PolarDB File System, is subject to Storage Space Fees.
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Traffic and Bandwidth: No fee.
Getting started
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Create a Ray Application: Learn how to create a Ray Application (PolarDB Ray) on a new or existing cluster.
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Configure a Ray Application: Learn how to set the Ray Application's Security Configuration, obtain connection information, and optionally enable Public Access.
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Submit a Job to a Ray Application: Learn how to submit and execute a Ray job in your Ray Application using JupyterLab, the Python Software Development Kit (SDK), or the command-line interface (CLI).