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OceanBase

A unified distributed database ready for your transactional, analytical, and AI workloads.

Product Overview

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OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

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Mission-Critical Transactions

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Elastic Scaling for Peak Traffic

Real-time Analytics

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Comprehensive knowledge hub for OceanBase.

Blog

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Official technical guides, tutorials, API references, and manuals for all OceanBase products.

PRODUCTS

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Practical guides for utilizing OceanBase more effectively and conveniently

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OceanBase Cloud

Product Updates & Announcements
- What's new
  - Release notes for 2026
  - Release notes for 2025
  - Release notes for 2024
  - Release history
- Product announcements
  - Data development module deprecation notice
  - Optimization of Backup and Restore commercialization strategy
  - Cross-AZ data transfer billing (OceanBase Cloud on AWS)
  - Database Proxy pricing update
  - AWS instance pricing adjustment
Product Introduction
- Overview
- Management mode and scenarios
- Core features
  - High availability with cross-cloud active-active architecture
  - High availability with cross-cloud primary-standby databases
  - Multi-level caching in shared storage
  - Multi-layer online scaling and on-demand adjustment
- Deployment modes
- Storage architecture
- Product specifications
- Product billing
  - Overview
  - Instance billing
    - Tencent Cloud instance billing
    - Alibaba Cloud instance billing
    - Huawei Cloud instance billing
    - AWS instance billing
    - GCP instance billing
  - Backup and restore billing
  - SQL audit billing
  - Migrations billing
  - Database proxy billing
  - Binlog service billing
  - Overview of OceanBase Cloud support plans
  - Read-only replica billing
- Supported database versions
Get Started
- Get started with a transactional instance
- Get started with an analytical instance
- Get started with a Key-Value instance
Work with Transactional Instances
- Overview
- Create an instance
  - Overview
  - Create via OceanBase Cloud official website
  - Create via AWS Marketplace
  - Create via GCP Marketplace
  - Create via Huawei Cloud Marketplace
  - Create via Alibaba Cloud Marketplace
  - Create via Azure Marketplace
- Connect to an instance
  - MySQL compatible mode
    - Overview
    - Get connection string
      - Overview
      - Connect using AWS PrivateLink
      - Connect using Azure Private Link
      - Connect using Google Cloud Private Service Connect
      - Connect using Huawei Cloud VPC Endpoint
      - Connect using Alibaba Cloud VPC
      - Connect using a public IP address
      - Connect using a Huawei Cloud peering connection
    - Connect with clients
      - Connect to OceanBase Cloud by using Client ODC
      - Connect to OceanBase Cloud by using a MySQL client
      - Connect to OceanBase Cloud by using OBClient
    - Connect with drivers
      - Java
        Connect to OceanBase Cloud using SpringBoot
        SpringBatch sample application for connecting to OceanBase Cloud
        spring-jdbc
        SpringDataJPA sample application for connecting to OceanBase Cloud
        Hibernate application development with OceanBase Cloud
        Sample program for connecting to OceanBase Cloud
        connector-j
        Use TestContainers to connect to and use OceanBase Cloud
      - Python
        Connect to OceanBase Cloud using mysqlclient
        Connect to OceanBase Cloud using PyMySQL
        Use the MySQL-connector-python driver to connect to and use OceanBase Cloud
        Use SQLAlchemy to connect to an OceanBase Cloud database
        Connect to an OceanBase Cloud database using Django
        Connect to an OceanBase Cloud database by using peewee
      - C
        Use MySQL Connector/C to connect to OceanBase Cloud
      - Go
        Connect to OceanBase Cloud using the Go-SQL-Driver/MySQL driver
        Connect to OceanBase Cloud using GORM
      - PHP
        Use the EXT driver to connect to OceanBase Cloud
        Connect to OceanBase Cloud by using the MySQLi driver
        Use the PDO driver to connect to OceanBase Cloud
      - Rust
        Rust application example for connecting to OceanBase Cloud
        SeaORM example for connecting to OceanBase Cloud
      - ruby
        ActiveRecord sample application for OceanBase Cloud
        Connect to OceanBase Cloud by using mysql2
        Connect to OceanBase Cloud by using Sequel
    - Use database connection pool
      - Database connection pool configuration
      - Connect to OceanBase Cloud by using a Tomcat connection pool
      - Connect to OceanBase Cloud by using a C3P0 connection pool
      - Connect to OceanBase Cloud by using a Proxool connection pool
      - Connect to OceanBase Cloud by using a HikariCP connection pool
      - Connect to OceanBase Cloud by using a DBCP connection pool
      - Connect to OceanBase Cloud by using Commons Pool
      - Connect to OceanBase Cloud by using a Druid connection pool
  - Oracle compatible mode
    - Overview
    - Get connection string
      - Overview
      - Connect using AWS PrivateLink
      - Connect using Azure Private Link
      - Connect using Google Cloud Private Service Connect
      - Connect using Huawei Cloud VPC Endpoint
      - Connect using a public IP address
    - Connect with clients
      - Connect to OceanBase Cloud by using OBClient
      - Connect to OceanBase Cloud by using Client ODC
    - Connect with drivers
      - Java
        Connect to OceanBase Cloud using OceanBase Connector/J
        Connect to OceanBase Cloud by using Spring Boot
        SpringBatch application example for connecting to OceanBase Cloud
        Connect to OceanBase Cloud using Spring JDBC
        Connect to OceanBase Cloud by using Spring Data JPA
        Connect to OceanBase Cloud by using Hibernate
        Use MyBatis to connect to OceanBase Cloud
        Use JFinal to connect to OceanBase Cloud
      - Python
        Python Driver for Oracle Mode
      - C
        Connect to OceanBase Cloud using OceanBase Connector/C
        Connect to OceanBase Cloud using OceanBase Connector/ODBC
        Use SqlSugar to connect to OceanBase Cloud
    - Use database connection pool
      - Database connection pool configuration
      - Sample program that uses a Tomcat connection pool to connect to OceanBase Cloud
      - C3P0 connection pool connects to OceanBase Cloud
      - Connect to OceanBase Cloud using Proxool connection pool
      - Sample program that uses HikariCP to connect to OceanBase Cloud
      - Use DBCP connection pool to connect to OceanBase Cloud
      - Connect to OceanBase Cloud by using Commons Pool
      - Connect to OceanBase Cloud by using a Druid connection pool
- Developer guide
  - MySQL compatible mode
    - Plan database objects
      - Create a database
      - Create a table group
      - Create a table
      - Create an index
      - Create an external table
    - Write data
      - Insert data
      - Update data
      - Delete data
      - Replace data
      - Generate test data in batches
    - Read data
      - Single-table queries
      - Join tables
        INNER JOIN queries
        FULL JOIN queries
        LEFT JOIN queries
        RIGHT JOIN queries
        Subqueries
        Lateral derived tables
      - Use operators and functions in queries
        Use arithmetic operators in queries
        Use numerical functions in queries
        Use string concatenation operators in queries
        Use string functions in queries
        Use datetime functions in queries
        Use type conversion functions in queries
        Use aggregate functions in queries
        Use NULL-related functions in queries
        Use the CASE conditional operator in queries
        Use the SELECT ... FOR UPDATE statement to lock query results
        Use the SELECT ... LOCK IN SHARE MODE statement to lock query results
      - Use a DBLink in queries
      - Set operations
    - Manage transactions
      - Overview
      - Start a transaction
      - Savepoints
        Mark a savepoint
        Roll back a transaction to a savepoint
        Release a savepoint
      - Commit a transaction
      - Roll back a transaction
  - Oracle compatible mode
    - Plan database objects
      - Create a table group
      - Create a table
      - Create an index
      - Create an external table
    - Write data
      - Insert data
      - Update data
      - Delete data
      - Replace data
      - Generate test data in batches
    - Read data
      - Single-table queries
      - Join tables
        INNER JOIN queries
        FULL JOIN queries
        LEFT JOIN queries
        RIGHT JOIN queries
        Subqueries
        Lateral derived tables
      - Use operators and functions in queries
        Use arithmetic operators in queries
        Use numerical functions in queries
        Use string concatenation operators in queries
        Use string functions in queries
        Use datetime functions in queries
        Use type conversion functions in queries
        Use aggregate functions in queries
        Use NULL-related functions in queries
        Use CASE functions in queries
        Use the SELECT ... FOR UPDATE statement to lock query results
      - Use a DBLink in queries
      - Set operations
    - Manage transactions
      - Overview
      - Start a transaction
      - Savepoints
        Mark a savepoint
        Roll back a transaction to a savepoint
      - Commit a transaction
      - Roll back a transaction
- Manage instances
  - Manage instances
    - View the instance list
    - Instance overview
    - Stop and restart instances
    - Unit migration
  - Manage tenants
    - Tenant overview
    - Create a tenant
    - Modify tenant specifications
    - Modify tenant names
    - Add an endpoint
    - Resource isolation
      - Overview
      - Manage resource groups
        Create a resource group
        View a resource group
        Edit a resource group
        Delete a resource group
      - Manage isolation rules
        Create an isolation rule
        View isolation rules
        Edit an isolation rule
        Delete a quarantine rule
    - Modify primary zone
    - Modify the maximum number of connections for a tenant proxy
    - Enable the AI function built-in AI models
    - Monitor tenant performance
      - Overview
      - View performance and SQL monitoring details
      - View transaction monitoring details
      - View storage and cache monitoring details
      - View Binlog service monitoring
      - Customize a monitoring dashboard for a tenant
    - Diagnostics
      - Real-time diagnostics
        SQL diagnostics
        Top SQL
        Slow SQL
        Suspicious SQL
        High-risk SQL
        SQL audit
    - Manage tenant parameters
      - Manage tenant parameters
      - Parameters for tenants
      - Parameter template overview
    - Delete a tenant
    - Manage databases and accounts
      - Create accounts
      - Manage accounts
      - Create a database (MySQL compatible mode)
      - Manage databases (MySQL compatible mode)
  - Monitor instance performance
    - Overview
    - Monitor the performance of databases in an instance
    - Monitor multidimensional metrics of an instance
    - Monitor the performance of hosts in an instance
    - Monitor database proxy
    - Monitor database proxy hosts
    - Monitor cross-cloud network performance
    - Customize a monitoring dashboard for an instance
  - Manage major compactions
    - Initiate a major compaction
    - View compaction records
    - Update time for compactions
  - Manage instance parameters
    - Manage parameters
    - Parameters for cluster instances
  - Change instance configurations
    - Enable storage auto-scaling
    - View history of configuration changes
    - Change configuration
    - Change configuration temporarily
    - Switch the deployment mode
  - Manage standby instances
    - Overview
    - Create a standby instance
    - Create a cross-cloud standby instance
    - Create a standby instance for an Alibaba Cloud primary instance
    - View details of primary and standby instances
    - Configure global endpoint
    - Enable automatic forwarding for write requests of standby databases
    - Primary-standby instance switchover
    - Initiate failover
    - Detach a standby instance
    - Release a standby instance
  - Release an instance
  - Database proxy
    - Overview
    - Manage database proxy
    - Direct load
  - Manage alerts
    - Overview
    - Manage alert rules
      - Create an alert rule
      - View an alert rule
      - Edit an alert rule
      - Delete an alert rule
    - View alert history
    - Manage alert templates
      - Create an alert template
      - View an alert template
      - Edit an alert template
      - Copy an alert rule template
      - Delete an alert template
    - Manage muting rules
      - Create an alert muting rule
      - View an alert muting rule
      - Edit an alert muting rule
      - Delete an alert muting rule
    - Manage alert notification templates
      - Create an alert notification template
      - View an alert notification template
      - Edit an alert notification template
      - Copy an alert notification template
      - Delete an alert notification template
    - Manage alert contacts
      - Add an alert contact
      - Add an alert contact group
      - View an alert contact
      - Edit an alert contact
      - Delete an alert contact
      - Obtain a webhook URL
    - Monitoring metrics for alerts
  - Backup and restore
    - Overview
    - Backup strategy
    - Initiate a backup immediately
    - Data backup
    - Initiate a restore
    - Data restore
    - Restore data from the instance recycle bin
  - Diagnostics
    - View performance monitoring data
    - Capacity diagnostics
    - One-click diagnostics
      - Initiate one-click diagnostics
      - View one-click diagnostic report
        Exceptions
        Real-time diagnostics
        Optimization suggestions
        Capacity management
        Security management
    - Real-time diagnostics
      - SQL diagnostics
        Top SQL
        Slow SQL
        Suspicious SQL
        High-risk SQL
        SQL details
        SQL monitoring metrics list
      - Session management
        Session management
      - Request analysis
        Request analysis
    - Root cause diagnostics
      - Exception handling
      - Enable system autonomy
    - SQL audit
    - Materialized view analysis
    - Optimization center
      - Optimization suggestions
      - Manage active outlines
      - SQL review
      - View the optimization history
  - Manage tags
  - Manage read-only replicas
    - Overview
    - Instance read-only replicas
      - Add a read-only replica to an instance
      - View read-only replicas of an instance
      - Manage read-only replicas of an instance
      - Delete a read-only replica of an instance
    - Tenant read-only replicas
      - Add a read-only replica to a tenant
      - View read-only replicas of a tenant
      - Manage read-only replicas of a tenant
      - Delete a read-only replica of a tenant
  - Manage JVM-dependent services
- Data source management
  - Create a data source
  - Manage data sources
  - User privileges
    - User privileges for compatibility assessment
    - User privileges for data migration
    - User privileges for performance assessment
    - User privileges for data archiving
    - User privileges for data cleanup
  - Connect via private network
    - AWS
    - Huawei Cloud
    - Alibaba Cloud
    - Google Cloud
    - Azure
    - Private IP address segments
  - Connect via public network
    - AWS
    - Huawei Cloud
    - Alibaba Cloud
    - Google Cloud
    - Azure
- Data lifecycle management
  - Overview
  - Archive data
  - Clean up data
  - Data archiving configurations
- Manage recycle Bin
  - Instance recycle bin
  - Manage databases and tables in recycle bin
    - Overview
    - Instance-level recycle bin
    - Tenant-level recycle bin
Work with Analytical Instances
- Overview
- Core features
- Create an instance
- Connect to an instance
  - Overview
  - Get connection string
    - Overview
    - Connect using AWS PrivateLink
    - Connect using a public IP address
  - Connect with clients
    - Connect to OceanBase Cloud by using Client ODC
    - Connect to OceanBase Cloud by using a MySQL client
    - Connect to OceanBase Cloud by using OBClient
  - Connect with drivers
    - Java
      - Connect to OceanBase Cloud by using Spring Boot
      - Connect to OceanBase Cloud by using Spring Batch
      - Connect to OceanBase Cloud by using Spring Data JDBC
      - Connect to OceanBase Cloud by using Spring Data JPA
      - Connect to OceanBase Cloud by using Hibernate
      - Connect to OceanBase Cloud by using MyBatis
      - Connect to OceanBase Cloud using MySQL Connector/J
    - Python
      - Connect to OceanBase Cloud by using mysqlclient
      - Connect to OceanBase Cloud by using PyMySQL
      - Connect to OceanBase Cloud using MySQL Connector/Python
    - C
      - Connect to OceanBase Cloud using MySQL Connector/C
    - Go
      - Connect to OceanBase Cloud using Go-SQL-Driver/MySQL
    - PHP
      - Connect to OceanBase Cloud using PHP
  - Use database connection pool
    - Database connection pool configuration
    - Connect to OceanBase Cloud by using a Tomcat connection pool
    - Connect to OceanBase Cloud by using a C3P0 connection pool
    - Connect to OceanBase Cloud by using a Proxool connection pool
    - Connect to OceanBase Cloud by using a HikariCP connection pool
    - Connect to OceanBase Cloud by using a DBCP connection pool
    - Connect to OceanBase Cloud by using Commons Pool
    - Connect to OceanBase Cloud by using a Druid connection pool
- Data table design
  - Table overview
  - Best practices
    - Unit 1: Best practices for optimizing storage structures and query performance
    - Unit 2: Best practices for creating special indexes
- Export data
- OceanBase data processing
- Query acceleration
  - Statistics
  - Materialized views for query acceleration
  - Select a query parallelism level
- Manage instances
  - Instance overview
  - Change configuration
  - Modify primary zone
  - Manage parameters
  - Backup and restore
    - Backup overview
    - Backup strategies
    - Immediate backup
    - Data backup
    - Initiate restore
    - Data restore
  - Monitor instance performance
    - Overview
    - Monitor the performance of databases in an instance
    - Monitor the performance of hosts in an instance
  - Manage major compactions
    - Initiate a major compaction
    - View compaction records
    - Update time for compactions
  - Database proxy
    - Overview
    - Manage database proxy
    - Direct load
  - Manage alerts
    - Overview
    - Manage alert rules
      - Create an alert rule
      - View an alert rule
      - Edit an alert rule
      - Delete an alert rule
    - View alert history
    - Manage alert templates
      - Create an alert template
      - View an alert template
      - Edit an alert template
      - Copy an alert template
      - Delete an alert template
    - Manage muting rules
      - Create an alert muting rule
      - View an alert muting rule
      - Edit an alert muting rule
      - Delete an alert muting rule
    - Manage alert notification templates
      - Create an alert notification template
      - View an alert notification template
      - Edit an alert notification template
      - Copy an alert notification template
      - Delete an alert notification template
    - Manage alert contacts
      - Add an alert contact
      - Add an alert contact group
      - View an alert contact
      - Edit an alert contact
      - Delete an alert contact
      - Obtain a webhook URL
    - Monitoring metrics for alerts
  - Diagnostics
    - View performance monitoring data
    - Capacity diagnostics
    - Real-time diagnostics
      - SQL diagnostics
        Top SQL
        Slow SQL
        Suspicious SQL
        High-risk SQL
        SQL details
        SQL monitoring metrics list
      - Session management
        Session management
      - Optimization management
        Manage active outlines
        View the optimization history
      - Request analysis
        Request analysis
  - Stop and restart instances
  - Release instances
  - Manage databases and accounts
    - Create and manage accounts
    - Create a database
    - Manage databases
  - Manage tags
- Data lifecycle management
  - Archive data
  - Clean up data
- Performance diagnosis and tuning
  - Use the DBMS_XPLAN package for performance diagnostics
  - Use the GV$SQL_PLAN_MONITOR view for performance analysis
  - Views related to AP performance analysis
- Performance testing
- Product integration
- Manage recycle Bin
  - View instance recycle bin
  - Manage databases and tables in recycle bin
    - Overview
    - Instance recycle bin
Work with Key-Value Instances
- Try out Key-Value instances
  - Create an instance
  - Create a tenant
  - Create an account for a database user
  - OBKV HBase data operation examples
- Use Table model
  - Create an instance
  - Manage instances
    - Manage instances
      - View the instance list
      - Instance overview
      - Stop and restart instances
      - Release an instance
    - Manage tenants
      - Create a tenant
      - Modify tenant specifications
      - Modify tenant names
      - Delete a tenant
      - Tenant overview
      - Resource isolation
        Overview
        Manage resource groups
        Create a resource group
        View a resource group
        Edit a resource group
        Delete a resource group
        Manage isolation rules
        Create an isolation rule
        View isolation rules
        Edit an isolation rule
        Delete a quarantine rule
      - Monitor tenant performance
        Overview
        View performance and SQL monitoring details
        View transaction monitoring details
        View storage and cache monitoring details
        OBKV-Table
        Customize a monitoring dashboard for a tenant
      - Diagnostics
        Top SQL
      - Manage tenant parameters
        Manage tenant parameters
        Parameters for tenants
      - Manage databases and accounts
        Create and manage accounts
        Create a database
        Manage databases
      - Switch primary zone
    - Monitor instance performance
      - Overview
      - Monitor the performance of databases in an instance
      - Monitor multi-dimensional metrics of an instance
      - Monitor the performance of hosts in a cluster
      - Customize monitoring dashboards for an instance
    - Manage major compactions
      - Initiate major compactions
      - View compaction records
      - Update time for compactions
    - Manage instance parameters
      - Parameter management overview
      - Parameters for cluster instances
    - Change instance configurations
      - View history of configuration changes
      - Change configuration
      - Switch the deployment mode
    - Database proxy
      - Overview
      - Manage database proxy
    - Manage alerts
      - Overview
      - Manage alert rules
        Create an alert rule
        View an alert rule
        Edit an alert rule
        Delete an alert rule
      - View alert history
      - Manage alert templates
        Create an alert template
        View an alert template
        Edit an alert template
        Copy an alert template
        Delete an alert template
      - Manage muting rules
        Create an alert muting rule
        View an alert muting rule
        Edit an alert muting rule
        Delete an alert muting rule
      - Manage alert contacts
        Add an alert contact
        Add an alert contact group
        View an alert contact
        Edit an alert contact
        Delete an alert contact
        Obtain a webhook URL
      - Monitoring metrics for alerts
    - Backup and restore
      - Backup overview
      - Backup strategies
      - Immediate backup
      - Data backup
      - Initiate restore
      - Data restore
    - Diagnostics
      - View performance monitoring data
      - Top SQL
      - Capacity diagnostics
      - Request analysis
    - Manage tags
    - Manage recycle Bin
      - View instance recycle bin
      - Manage databases and tables in recycle bin
        Overview
        Instance-level recycle bin
        Tenant-level recycle bin
- Use HBase model
  - OBKV-HBase Overview
  - Create an instance
  - Develop in HBase model
    - Connect to an instance by using the OBKV-HBase client
  - Manage instances
    - Manage instances
      - View the instance list
      - Instance overview
      - Stop and restart instances
      - Release an instance
    - Manage tenants
      - Create a tenant
      - Modify tenant specifications
      - Modify tenant names
      - Delete a tenant
      - Tenant overview
      - Resource isolation
        Overview
        Manage resource groups
        Create a resource group
        View a resource group
        Edit a resource group
        Delete a resource group
        Manage isolation rules
        Create an isolation rule
        View isolation rules
        Edit an isolation rule
        Delete a quarantine rule
      - Monitor tenant performance
        Overview
        View performance and SQL monitoring details
        View transaction monitoring details
        View storage and cache monitoring details
        OBKV-HBase
        Customize a monitoring dashboard for a tenant
      - Diagnostics
        Top SQL
      - Manage tenant parameters
        Manage tenant parameters
        Parameters for tenants
      - Manage databases and accounts
        Create and manage accounts
        Create a database
        Manage databases
      - Switch primary zone
    - Monitor instance performance
      - Overview
      - Monitor the performance of databases in an instance
      - Monitor multi-dimensional metrics of an instance
      - Monitor the performance of hosts in a cluster
      - Customize monitoring dashboards for an instance
    - Manage major compactions
      - Initiate major compactions
      - View compaction records
      - Update time for compactions
    - Manage instance parameters
      - Parameter management overview
      - Parameters for cluster instances
    - Change instance configurations
      - View history of configuration changes
      - Change configuration
      - Switch the deployment mode
    - Database proxy
      - Overview
      - Manage database proxy
    - Manage alerts
      - Overview
      - Manage alert rules
        Create an alert rule
        View an alert rule
        Edit an alert rule
        Delete an alert rule
      - View alert history
      - Manage alert templates
        Create an alert template
        View an alert template
        Edit an alert template
        Copy an alert template
        Delete an alert template
      - Manage muting rules
        Create an alert muting rule
        View an alert muting rule
        Edit an alert muting rule
        Delete an alert muting rule
      - Manage alert contacts
        Add an alert contact
        Add an alert contact group
        View an alert contact
        Edit an alert contact
        Delete an alert contact
        Obtain a webhook URL
      - Monitoring metrics for alerts
    - Backup and restore
      - Backup overview
      - Backup strategies
      - Immediate backup
      - Data backup
      - Initiate restore
      - Data restore
    - Diagnostics
      - View performance monitoring data
      - Top SQL
      - Capacity diagnostics
      - Request analysis
    - Manage tags
    - Manage recycle Bin
      - View instance recycle bin
      - Manage databases and tables in recycle bin
        Overview
        Instance-level recycle bin
        Tenant-level recycle bin
  - Performance test
- Connect Key-Value instances
  - Overview
  - Connect using a public IP address
Migrations
- Data migration and import solutions
- Data assessment and migration quick start
- Assess compatibility
  - Overview
  - Perform online assessment
  - Perform offline assessment
  - Manage compatibility assessment tasks
    - View a compatibility assessment task
    - View and download a compatibility assessment report
    - Stop a compatibility assessment task
    - Delete a compatibility assessment task
  - Obtain files for upload
  - Configure PrivateLink
  - Add an IP address to an allowlist
- Migrate data
  - Overview
  - Migrations specification
  - Purchase a data migration instance
  - Migrate data from a MySQL database to a MySQL-compatible tenant of OceanBase Database
  - Migrate data from a MySQL-compatible tenant of OceanBase Database to a MySQL database
  - Migrate data between OceanBase database tenants of the same compatibility mode
  - Migrate data between OceanBase database tenants of different compatibility modes
  - Migrate data from an Oracle database to an Oracle-compatible tenant of OceanBase Database
  - Migrate data from an Oracle-compatible tenant of OceanBase Database to an Oracle database
  - Configure a two-way synchronization task
  - Migrate data from an OceanBase database to a Kafka instance
  - Migrate data from a TiDB database to a MySQL-compatible tenant of OceanBase Database
  - Migrate incremental data from a MySQL-compatible tenant of OceanBase Database to a TiDB Database
  - Migrate data from a PostgreSQL database to an OceanBase database
  - Migrate incremental data from an OceanBase Database to a PostgreSQL database
  - Manage data migration tasks
    - View details of a data migration task
    - Rename a data migration task
    - View and modify migration objects
    - View and modify migration parameters
    - Configure alert monitoring
    - Manage data migration tasks by using tags
    - Start, stop, and resume a data migration task
    - Clone a data migration task
    - Terminate and release a data migration task
  - Features
    - Custom DML/DDL configurations
    - DDL synchronization scope
    - Use SQL conditions to filter data
    - Rename a migration object
    - Set an incremental synchronization timestamp
    - Instructions on schema migration
    - Configure and modify matching rules
    - Wildcard rules
    - Import migration objects
    - Download conflict data
    - Change a topic
    - Column filtering
    - Data formats
  - Authorize an Alibaba Cloud account
  - SQL statements for querying table objects
  - Online DDL tools
  - Create a trigger
  - Modify the log level of a self-managed PostgreSQL instance
  - Supported DDL statements for synchronization and their limitations
    - DDL synchronization from Aurora MySQL DB clusters to MySQL-compatible tenants of OceanBase Database
    - DDL synchronization from MySQL-compatible tenants of OceanBase Database to Aurora MySQL DB clusters
    - DDL synchronization between MySQL-compatible tenants of OceanBase Database
    - DDL synchronization from Oracle databases to Oracle-compatible tenants of OceanBase Database
    - DDL synchronization from Oracle-compatible tenants of OceanBase Database to Oracle databases
    - DDL synchronization between Oracle-compatible tenants of OceanBase Database
    - DDL synchronization from OceanBase databases to Kafka instances
- Data subscription
  - Create a data subscription task
  - Manage data subscription tasks
    - View details of a data subscription task
    - Configure subscription information
    - Modify the name of a data subscription task
    - View and modify subscription objects
    - View data subscription parameters
    - Set up data subscription alerts
    - Start, stop, and resume data subscription tasks
    - Clone a data subscription task
    - Release a data subscription task
  - Manage private connections for data subscriptions
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  - Message formats
- Data validation
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  - Create a data validation task
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  - Features
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- Binlog service
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Security
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- Session variable management
- Functional keys in SQL Console
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- Best practices for achieving high availability through cross-cloud active-active deployment
- High availability through cross-cloud primary-standby databases (1:1)
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- High host CPU usage
- Best practices for read/write splitting in OceanBase Cloud
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  - Differences between ApsaraDB for OceanBase APIs and OceanBase Cloud APIs
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- Metrics References
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        Overview
        Create a function
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        Create a stored procedure
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        Create a program package
        Manage program packages
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Monitoring metrics for alerts

Last Updated：2026-04-07 08:08:33 Updated

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This topic describes common monitoring metrics for alerts in OceanBase Cloud. You can create alerts based on the metrics that meet your business requirements.

Instance-level alerts

Metrics

Metric type	Metric name
Disk	OceanBase data disk usage OceanBase data disk usage rate OceanBase node data disk usage rate
CPU	OceanBase node CPU usage rate
Memory	OceanBase node memory usage rate
I/O	OPS System average load per minute Read disk response time Time spent on data disk read I/O OceanBase data disk I/O usage rate Time spent on each I/O operation Time spent on data disk write I/O IOPS usage rate for OceanBase host Throughput usage rate for OceanBase host Data disk read IOPS Data disk write IOPS Log disk read IOPS Log disk write IOPS System CPU load per minute
Network	Bytes received per second Bytes sent per second NTP clock offset OceanBase node NIC I/O traffic ratio Inter-cloud network channel connection incoming bandwidth utilization (Alibaba Cloud) Inter-cloud network channel connection outgoing bandwidth utilization (Alibaba Cloud) Inter-cloud network channel connection incoming packets (Alibaba Cloud) Inter-cloud network channel connection outgoing packets (Alibaba Cloud)
Service availability	Time since last major compaction in OceanBase instance Major compaction errors in OceanBase instance Major compaction timeouts in OceanBase instance
Cache	Block cache hit rate Bloom filter cache hit rate Clog cache hit rate Execution plan cache hit rate Location cache hit rate Row cache hit rate

Events

Event type	Event name
Service availability	Log backup latency Data backup task timeout OceanBase instance SSL certificate has expired OceanBase instance SSL certificate will expire soon

Tenant-level alerts

Metrics

Metric type	Metric name
Transactions and SQL statements	Average commit time for transactions Transactions processed per second (TPS) SQL statements processed per second Slow SQL statements Incremental refresh latency of materialized views of tenant
Resources and performance	MemStore: Active memory of tenant MemStore usage percentage MemStore usage CPU: OceanBase node CPU usage rate of tenant CPU usage of tenant Session: Current active sessions Current sessions I/O: Read IOPS Physical I/O throughput IOPS Write IOPS Write I/O throughput SQL: Average waiting time in the waiting queue for SQL statements Average processing time for SQL statements at the P99, P95, and P90 percentiles. Average processing time for SELECT statements at the P99, P95, and P90 percentiles. Average processing time for INSERT statements at the P99, P95, and P90 percentiles. Average processing time for UPDATE statements at the P99, P95, and P90 percentiles. Average processing time for DELETE statements at the P99, P95, and P90 percentiles. Average processing time for REPLACE statements at the P99, P95, and P90 percentiles. Average processing time for COMMIT statements at the P99, P95, and P90 percentiles. Average processing time for other statements at the P99, P95, and P90 percentiles.
Binlog service	Binlog conversion latency Binlog subscription latency Binlog subscription exceptions Binlog disk usage rate Binlog disk usage
Service availability	Time since last major compaction in OceanBase tenant Major compaction errors in OceanBase tenant

Events

Event type	Event name
Transactions and SQL statements	Slow SQL statements exist in tenant SQL statements with performance degradation exist in tenant SQL statements with deteriorated execution plans exist in tenant Incremental refresh of materialized views of tenant fails

Database proxy metrics

Metrics

Metric type	Metric name
Resources and performance	Session: OceanBase server connections Client connections
Transactions and SQL statements	OBProxy SQL execution errors

Data services

Metrics

Metric type	Metric name
Data migration	Incremental synchronization latency in data migration

Events

Event type	Event name
Data archiving	Data archiving execution timeout Data archiving scheduling failure Data archiving execution failure
Data cleanup	Data cleanup execution timeout Data cleanup scheduling failure Data cleanup execution failure
Data import	Data import execution timeout Data import scheduling failure Data import execution failure
Data migration	Data migration task exception

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