OceanBase logo

OceanBase

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

Product Overview
DEPLOY YOUR WAY

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.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Resources

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

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

View All
PRODUCTS

OceanBase Cloud

OceanBase Database

Tools

Connectors and Middleware

QUICK START

OceanBase Cloud

OceanBase Database

BEST PRACTICES

Practical guides for utilizing OceanBase more effectively and conveniently

Company

Learn more about OceanBase – our company, partnerships, and trust and security initiatives.

About OceanBase

Partner

Trust Center

Contact Us

International - English
中国站 - 简体中文
日本 - 日本語
Sign In
Start on Cloud

OceanBase

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

Product Overview
DEPLOY YOUR WAY

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.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

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

View All
PRODUCTS
OceanBase CloudOceanBase Database
ToolsConnectors and Middleware
QUICK START
OceanBase CloudOceanBase Database
BEST PRACTICES

Practical guides for utilizing OceanBase more effectively and conveniently

Learn more about OceanBase – our company, partnerships, and trust and security initiatives.

About OceanBase

Partner

Trust Center

Contact Us

Start on Cloud
编组
All Products
    • Databases
    • iconOceanBase Database
    • iconOceanBase Cloud
    • iconOceanBase Tugraph
    • iconInteractive Tutorials
    • iconOceanBase Best Practices
    • Tools
    • iconOceanBase Cloud Platform
    • iconOceanBase Migration Service
    • iconOceanBase Developer Center
    • iconOceanBase Migration Assessment
    • iconOceanBase Admin Tool
    • iconOceanBase Loader and Dumper
    • iconOceanBase Deployer
    • iconKubernetes operator for OceanBase
    • iconOceanBase Diagnostic Tool
    • iconOceanBase Binlog Service
    • Connectors and Middleware
    • iconOceanBase Database Proxy
    • iconEmbedded SQL in C for OceanBase
    • iconOceanBase Call Interface
    • iconOceanBase Connector/C
    • iconOceanBase Connector/J
    • iconOceanBase Connector/ODBC
    • iconOceanBase Connector/NET
icon

OceanBase Developer Center

V4.2.2

  • Overview
    • What is ODC?
    • Features
    • Architecture
    • Limitations
    • ODC console
  • Quick Start
    • Client ODC
      • Overview
      • Install Client ODC
      • Use Client ODC
    • Web ODC
      • Overview
      • Deploy Web ODC
      • Use Web ODC
  • Data Source Management
    • Create a data source
    • Data sources and project collaboration
    • Database O&M
      • Session management
      • Global variable management
      • Recycle bin management
  • SQL Development
    • Write and execute SQL statements
    • Perform PL compilation and debugging
    • Use the command-line window
    • Edit and export the result set of an SQL statement
    • Analyze SQL statements
    • Generate test data
    • Database objects
      • Table objects
        • Overview
        • Create a table
        • Table list
        • Manage table attributes
        • Manage table data
      • View objects
        • Overview
        • Create a view
        • Manage views
      • Function objects
        • Overview
        • Create a function
        • Manage functions
      • Stored procedure objects
        • Overview
        • Create a stored procedure
        • Manage stored procedures
      • Sequence objects
        • Overview
        • Create a sequence
        • Manage sequences
      • Package objects
        • Overview
        • Create a program package
        • Manage program packages
      • Trigger objects
        • Overview
        • Create a trigger
        • Manage triggers
      • Type objects
        • Overview
        • Create a type
        • Manage types
      • Synonym objects
        • Overview
        • Create a synonym
        • Manage synonyms
  • Import and Export
    • Import schemas and data
    • Export schemas and data
  • Database Change Management
    • User Permission Management
      • Users and roles
      • Automatic authorization
    • Collaborative project management
    • Risk levels, risk identification rules, and approval processes
    • SQL check specifications
    • SQL window specification
    • Database change management
    • Lock-free schema changes
    • Synchronize shadow tables
  • Data Lifecycle Management
    • Archive data
    • Clean up data
    • Manage partitions
    • SQL plan task
  • Data Desensitization and Auditing
    • Desensitize data
    • Operation audit
  • System Integration
    • SSO integration
    • Approval integration
    • SQL approval integration
  • Deployment Guide
    • Overview
    • Preparations before deployment
    • Deploy ODC on a single node
    • Deploy ODC in high-availability mode
    • Deployment verification
  • Upgrade Guide
    • Overview
    • Preparations before upgrade
    • Upgrade single-node ODC
    • Upgrade high-availability ODC
    • Upgrade verification
    • Rollback after upgrade failed
  • Troubleshooting
    • ODC troubleshooting process
    • Collect Message
      • View the runtime environment and version information
      • View web ODC logs
      • View client ODC logs
      • View end-to-end ODC-related logs
      • View ODC MetaDB data
      • Query the index status in OceanBase Database V4.x
      • Query the index status in OceanBase Database V1.4.x to V3.2.x
      • Collect JVM runtime information
      • Use tcpdump to capture packets
    • Common Troubleshooting
      • Deployment Upgrade
        • Web ODC cannot be accessed after startup
      • Database Connection
        • Access denied in a connection trial or test
        • Connection is refused in a connection trial or test
        • Connection times out
        • `Connection reset` is reported for a time-consuming statement
        • `socket write error` or `closed by server` is reported for a connection
      • SQL Execution
        • Disconnection during SQL execution
        • `Over tenant memory limits` is reported during SQL execution
        • `Unknown thread id` is returned during SQL execution
        • `timeout` errors returned during SQL execution
        • `OutOfMemoryError` is returned during SQL execution
        • Incomplete result columns for the SELECT statement
        • Garbled Chinese characters in the SQL execution result set
        • Garbled Chinese data is returned for query of data in GBK encoding
      • PL Object
        • Debugging is not supported for invalid PL objects
        • `JSONException` is reported during PL debugging
        • Garbled variable values in debugging
        • Failed to view PL objects or garbled characters are returned
        • PL objects cannot be executed or an execution error is returned
        • ODC issues during PL debugging
        • PL anonymous block cannot be debugged
        • Alert information of a PL object is unavailable
      • Import and Export
        • Garbled Chinese characters in an imported file in GBK encoding
        • Invalid ZIP package reported during file import
        • Time-type data exported from an Oracle tenant cannot be imported
        • Mismatched columns reported during the import of a single-table CSV file
        • Failed to export a result set in ODC to an Excel file
        • Incorrect display in Excel for a result set exported in CSV format
        • Incomplete data in batch export of multiple tables
        • `javax.crypto.BadPaddingException: Given final block not properly padded` is returned for a data import or export failure
      • Client ODC Problems
        • Client ODC startup failure / H2 Database corruption: Chuck not found
        • Garbled Chinese characters in the command-line window of ODC
        • Failed to install client ODC
        • Client ODC startup failure or no response
        • `Not a valid secret key` is returned for connection creation in client ODC
        • `User does not exist` returned for connection creation in client ODC
        • High memory usage of client ODC
        • Client ODC fails to be installed or start due to a port conflict
      • Front-end Page Exception
        • JavaScript exception is thrown on the ODC page
        • No response in browser after opening ODC
        • White screen in ODC
      • Account Password Problem
        • Forgot the admin account password in ODC V3.2.0 or later
        • Forgot an account password in ODC V2.4.1 to V3.1.3
        • Forgot an account password in ODC V2.4.0 or earlier
    • FAQ
      • Installation of client ODC
      • Web ODC deployment and startup
      • FAQ
      • Command-line window
      • DDL statement display
  • Release Note
    • 90.odc-rn-4.2
      • ODC V4.2.2
      • ODC V4.2.0
      • ODC V4.2.1
    • V4.1
      • ODC V4.1.2
      • ODC V4.1.1
      • ODC V4.1.0
    • V4.0
      • ODC V4.0.2
      • ODC V4.0.0
    • V3.4
      • ODC V3.4.0
    • V3.3
      • ODC V3.3.3
      • ODC V3.3.2
      • ODC V3.3.1
      • ODC V3.3.0
    • V3.2
      • ODC V3.2.3
      • ODC V3.2.2
      • ODC V3.2.1
      • ODC V3.2.0

Download PDF

What is ODC? Features Architecture Limitations ODC console Overview Install Client ODC Use Client ODC Overview Deploy Web ODC Use Web ODC Create a data source Data sources and project collaboration Session management Global variable management Recycle bin management Write and execute SQL statements Perform PL compilation and debugging Use the command-line window Edit and export the result set of an SQL statement Analyze SQL statements Generate test data Import schemas and data Export schemas and data Users and roles Automatic authorization Collaborative project management Risk levels, risk identification rules, and approval processes SQL check specifications SQL window specification Database change management Lock-free schema changes Synchronize shadow tables Archive data Clean up data Manage partitions SQL plan task Desensitize data Operation audit SSO integration Approval integration SQL approval integration OverviewPreparations before deployment Deploy ODC on a single node Deploy ODC in high-availability modeDeployment verification OverviewPreparations before upgrade Upgrade single-node ODC Upgrade high-availability ODCUpgrade verification Rollback after upgrade failed ODC troubleshooting process View the runtime environment and version information View web ODC logsView client ODC logsView end-to-end ODC-related logsView ODC MetaDB dataQuery the index status in OceanBase Database V4.xQuery the index status in OceanBase Database V1.4.x to V3.2.xCollect JVM runtime informationUse tcpdump to capture packetsInstallation of client ODCWeb ODC deployment and startupFAQCommand-line windowDDL statement display ODC V4.2.2 ODC V4.2.0 ODC V4.2.1 ODC V4.1.2 ODC V4.1.1 ODC V4.1.0 ODC V4.0.2 ODC V4.0.0ODC V3.4.0ODC V3.3.3 ODC V3.3.2 ODC V3.3.1 ODC V3.3.0 ODC V3.2.3 ODC V3.2.2 ODC V3.2.1 ODC V3.2.0
OceanBase logo

The Unified Distributed Database for the AI Era.

Follow Us
Products
OceanBase CloudOceanBase EnterpriseOceanBase Community EditionOceanBase seekdb
Resources
DocsBlogLive DemosTraining & Certification
Company
About OceanBaseTrust CenterLegalPartnerContact Us
Follow Us

© OceanBase 2026. All rights reserved

Cloud Service AgreementPrivacy PolicySecurity
Contact Us
Document Feedback
  1. Documentation Center
  2. OceanBase Developer Center
  3. V4.2.2
iconOceanBase Developer Center
V 4.2.2
  • V 4.4.2
  • V 4.4.1
  • V 4.4.0
  • V 4.3.4
  • V 4.3.3
  • V 4.3.2
  • V 4.3.1
  • V 4.3.0
  • V 4.2.4
  • V 4.2.3
  • V 4.2.2
  • V 4.2.1
  • V 4.2.0
  • V 4.1.3 and earlier

Preparations before deployment

Last Updated:2026-04-13 07:40:37  Updated
share
What is on this page
MetaDB
Server environment
Browser
Configure an allowlist
Install and run the Docker container

folded

share

Before you deploy OceanBase Developer Center (ODC), you must prepare the MetaDB and the server environment. After ODC is deployed, log on to Web ODC in Google Chrome.

MetaDB

The MetaDB stores connections created in ODC and user data generated by operations such as script execution. You must prepare the MetaDB (in MySQL mode of OceanBase Database) before you deploy Web ODC. The MetaDB of Client ODC is automatically created when you use Client ODC for the first time, and does not need to be manually created.

Procedure

  1. Apply for a tenant in MySQL mode of OceanBase Database. The specification of the tenant is 2C8G. You can set the tenant name as you like. In this topic, the tenant name is odc_tenant and the cluster name is odc_cluster.

    Note

    • ODC of a version later than V3.3.0 provides enterprise-level management capabilities such as change process and operation audit.
    • ODC of a version later than V3.3.1 revokes the limitations on MetaDB versions.
    • We recommend that you allocate at least 2 CPU cores and 8 GB of memory to the OceanBase Database tenant where the MetaDB is located. Otherwise, the performance of the MetaDB may be affected.
  2. Create a database in the tenant as the MetaDB, and then create a user to access this MetaDB. You can set the MetaDB name, username, and password as you like. In this topic, the database name is odc_metadb, and the database username and password are both obodc.

  3. Note down the MetaDB name, username, password, tenant name, and cluster name, which will be passed as parameters during the deployment of ODC.

Server environment

The following table lists the resource specifications for the sever environment of Web ODC, which vary based on the number of ODC users.

Number of ODC users Server type Server quantity Minimum functional configuration Minimum performance configuration
20 ODC Docker deployment server 1. You can deploy ODC on the OceanBase Cloud Platform (OCP) server. 2 CPU cores and 4 GB of memory 4 CPU cores and 16 GB of memory
100 ODC Docker deployment server 3. You can deploy ODC on the OCP server. 4 CPU cores and 16 GB of memory 8 CPU cores and 32 GB of memory
500 ODC Docker deployment server 3. You can deploy ODC on the OCP server. 8 CPU cores and 32 GB of memory 16 CPU cores and 64 GB of memory

If the number of ODC users exceeds 500, adjust the resource specifications based on the actual situation.

Note

  • The actual resource usage depends on the number of concurrent users and the features used. The resource specifications provided in the table are empirical values for reference only.
  • To enable Web ODC to provide high availability, you must deploy Web ODC on multiple servers. For more information, see Deploy ODC in high-availability mode.
  • To enable lightweight deployment, ODC uses a container image. Make sure that Docker is installed on the server so that you can pull and run the image.

Browser

We recommend that you use Google Chrome 78 or later to access Web ODC.

Configure an allowlist

ODC of a version later than V3.3.1 allows you to configure a database allowlist to prevent server-side request forgery (SSRF) attacks.

Connect to the MetaDB of ODC as the administrator, access this connection, and execute UPDATE config_system_configuration SET value='x.x.x.x' WHERE key = 'odc.connect.host-white-list'; to configure an allowlist. The allowlist can contain multiple IP addresses separated with commas. However, it does not support CIDR blocks.

Install and run the Docker container

For information about how to install and run the Docker container, see Bind mounts.

Previous topic

Overview
Last

Next topic

Deploy ODC on a single node
Next
What is on this page
MetaDB
Server environment
Browser
Configure an allowlist
Install and run the Docker container