Document Center
Realtime Compute
Document updates
Introduction
What is Alibaba Cloud Realtime Compute for Apache Flink?
Architecture of Realtime Compute for Apache Flink in exclusive mode
Service types
Scenarios
Exclusive Mode
Announcements
Release notes
Blink-3.6.8
Blink 3.6.5
Blink 3.6.2
Blink 3.6.0
Blink-3.5.0-hotfix
Blink 3.4.3
Blink 3.4.4
Blink 3.3.0
Blink 3.2.3
Blink 3.2.1
Blink 3.2.1 release notes
API compatibility report: Blink 3.2 and Flink 1.5.1
Incompatible SQL items: Blink 3.0 and Blink 2.0
Product Introduction
Overview
Development history
Workflow
Realtime Compute for Apache Flink console
Upstream and downstream data stores
Product security
Limits
Pricing
Billable items
Billing
Specification selection
Renewal
Manual renewal
Auto-renewal
Change resource configurations
Preparation
Alibaba Cloud account and RAM user authorization
Activate Realtime Compute for Apache Flink and create a project
Role authorization
Grant a RAM role to Realtime Compute for Apache Flink in exclusive mode
Flink SQL
Overview
Keywords
Basic concepts
Time zone
Time attributes
Watermark
Computed column
Data types
Data type conversion
Mathematical and logical operations between data types
Create a data view
DDL statements
Overview
Create a source table
Create a result table
Create a dimension table
DML statement
INSERT INTO statements
EMIT statement
Query statements
SELECT statements
WHERE statement
HAVING statement
GROUP BY statement
JOIN statements
JOIN statements for dimension tables
UNION ALL
TopN
GROUPING SETS clause
CEP statements
Deduplication statements
Window functions
Overview
Tumbling window
Sliding windows
Session window
OVER window
Built-in functions
String functions
Mathematical functions
Date functions
Logical functions
Conditional functions
Table-valued functions
Type conversion function
Aggregate functions
Other functions
UDX
Overview
UDF
UDAF
UDTF
Develop a UDX by using IntelliJ IDEA
Flink SQL Development Guide
Overview
Data storage
Overview
Data storage resource registration
Authorize Realtime Compute for Apache Flink to access a VPC
Configure a whitelist for accessing storage resources
Data development
Develop a job
Publish a job
Start a job
Suspend a job
Terminate a job
Job debugging
Local debugging
Online debugging
Data administration
Go to the Job Administration page
Running information
Curve charts
Timeline
Failover
Checkpoints
JobManager
TaskExecutor
Data lineage
Properties and parameters
Job diagnosis
Configuration optimization
Overview
Recommended Flink SQL practices
Performance optimization by using automatic configuration
Performance optimization by using auto scaling
Performance optimization by manual configuration
Typical backpressure scenarios and optimization ideas
SQL Tuning Advisor
Asynchronous mode
Cache policy
Local-global optimization
ROW_NUMBER OVER WINDOW
miniBatch and microBatch
Partial-final optimization
APPROX_COUNT_DISTINCT
Partitioned All Cache
Monitoring and alerting
Manage Blink versions of a Realtime Compute for Apache Flink cluster deployed in exclusive mode
Customize log levels and download paths
Flink Datastream Development Guide
Overview
Configure a whitelist for accessing storage resources
Set custom parameters
Monitoring and alerts
Develop a job
Publish a job
Example of DataStream jobs
Read data from Alibaba Cloud DataHub
Read data from Message Queue for Apache Kafka
Read data from Alibaba Cloud DataHub and write data to ApsaraDB for HBase
Read data from Log Service
Best Practices
Best practices of Realtime Compute in the e-commerce industry
Latest transaction records in e-commerce scenarios
Real-time situation awareness and geographic distribution of orders in e-commerce scenarios
Marketing coupons in e-commerce scenarios
Real-time PV and UV curves in e-commerce scenarios
Best practices of Realtime Compute in the IoT industry
Multidimensional analysis of data from IoT sensors
Best practices of Realtime Compute in the live streaming industry
Core video metric monitoring for live streaming
Digital operations for live streaming
Agreements
Realtime Compute for Apache Flink Service Level Agreement
General Reference
Guidelines for the use of documentation
Alibaba Cloud documentation
Instructions for open source documentation
Open-Source Documentation Code of Conduct
Editing Open-Source Documentation
Alibaba Cloud console
Regions and zones
Service limits
Create an AccessKey pair
ICP Filing
Glossary
All Products
Search
Document Center
Realtime Compute
Exclusive Mode
Flink SQL Development Guide
Data storage
Data storage resource registration
This Product
This Product
All Products
Realtime Compute
Register an AnalyticDB for MySQL instance
Register a Tablestore instance
Register an ApsaraDB for RDS instance
Register a Log Service project
Free Trial
Free Trial