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TRY OPEN SOURCE

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Open source AI native search database

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OceanBase Database

SQL - V4.0.0Enterprise Edition

  • Overview
    • Overview
    • System architecture
    • Compatibility with MySQL
    • Compatibility with Oracle
      • Overview
      • SQL data types
      • Built-in functions
      • System views
    • Limits
  • Get Started
    • Quick start with OceanBase Database
    • Hands on for OceanBase SQL
      • Usage notes
      • Basic SQL operations (MySQL mode)
      • Basic SQL operations (Oracle mode)
    • Build applications (MySQL Mode)
      • Connect Python applications to OceanBase Database
      • Connect Java applications to OceanBase Database
      • Connect C applications to OceanBase Database
    • Build applications(Oracle Mode)
      • Connect Python applications to OceanBase Database
      • Connect Java applications to OceanBase Database
      • Connect C applications to OceanBase Database
    • Experience OceanBase advanced features
      • Experience scalable OLTP
        • Run the TPC-C benchmark in OceanBase Database
        • Experience the hot row update capability of OceanBase Database
      • Experience operational OLAP
      • Experience parallel import and data compression
      • Experience the multitenancy feature
  • Develop
    • Develop (MySQL Mode)
      • Connect to Oceanbase Database with client
        • Overview
        • Connect to an OceanBase Database tenant by using a MySQL client
        • Connect to an OceanBase Database tenant by using OBClient
        • Connect to OceanBase Database by using ODC
        • Java application
          • OceanBase Connector/J
          • Java APIs
          • Connect Java applications to OceanBase Database
        • C application
          • OceanBase Connector/C
          • C API functions
          • Connect C applications to OceanBase Database
        • Python applications
        • SpringBoot connection example
        • SpringBatch connection example
        • Example of Database connection pool configuration
          • Overview of database connection pool configuration
          • Example of configuring a Tomcat connection pool
          • Example of configuring a C3P0 connection pool
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          • Example of configuring a HiKariCP connection pool
          • Example of configuring a DBCP connection pool
          • CommonPool configuration example
          • Example of configuring a JDBC connection pool
        • SpringJDBC connection example
        • SpringJPA connection example
        • Hibernate connection example
        • MyBatis connection example
      • Create and manage database objects
        • About DDL statements
        • View the currently connected database
        • Change the password of a user
        • Data type
          • General data types
          • Unsupported data types
        • Create and manage tables
          • About tables
          • Create a table
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          • About types of column constraints
          • About table structure modification
          • About table clearing
          • About table dropping
          • Flash back a dropped table
          • About table privileges
        • Create and manage partition tables
          • About partitioned tables
          • Create a partitioned table
          • Manage a partitioned table
          • Create a subpartitioned table
          • Manage a subpartitioned table
          • Partition routing
          • Indexes on partitioned tables
          • Suggestions on using partitioned tables
        • Create and manage indexes
          • About indexes
          • Create an index
          • Drop an index
        • Create and manage views
          • About views
          • Create a view
          • Modify a view
          • Delete a view
        • Create and manage sequences
          • About sequences
          • Create a sequence
          • Modify a sequence
          • Delete a sequence
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          • About triggers
          • Create a trigger
          • Delete a trigger
      • Query
        • About queries
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        • Query data from multiple tables
          • About multi-table join queries
          • INNER JOIN queries
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          • Subqueries
        • Use operators and functions in a query
          • Use arithmetic operators in queries
          • Use numerical functions in queries
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          • Use string functions in queries
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          • Use type conversion functions in queries
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          • Use NULL-related functions in queries
          • Use the CASE conditional operator in queries
          • Use the SELECT FOR UPDATE statement to lock query results
        • Execution plan
          • View an execution plan
          • Understand an execution plan
        • Use SQL hints in queries
        • Variables of query timeout
      • DML statements and transactions
        • DML statement
          • About DML statements
          • About the INSERT statement
          • UPDATE statements
          • About the DELETE statement
          • About the REPLACE INTO statement
        • Transactions
          • About transaction control statements
          • Start a transaction
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          • Commit a transaction
          • Roll back a transaction
          • About transaction timeout
      • Common errors and solutions
        • About error codes
        • Database connection error
        • About timeout
          • Idle session timeout
          • Transaction timeout errors
        • About user
          • Locked user
          • Incorrect user password
        • About table
          • Table already exists
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          • Invalid use of NULL value
        • About constraint
          • Unique key conflict
          • Foreign key conflict
        • About SQL commands
          • Data truncation
    • Develop (Oracle Mode)
      • Connect to Oceanbase Database with client
        • Overview
        • Connect to an OceanBase tenant by using an Oracle client
        • Connect to an OceanBase Database tenant by using OBClient
        • Connect to OceanBase Database by using ODC
      • Application development
        • Java application
          • OceanBase Connector/J
          • Java APIs
          • Connect Java applications to OceanBase Database
        • Python application
          • OceanBase Connector/J in Python
          • Python APIs
          • Connect Python applications to OceanBase Database
        • 300.c-application-1
          • OceanBase Connector/C
          • OBCI APIs
          • Connect C applications to OceanBase Database
      • Create and manage database objects
        • About DDL statements
        • View the currently connected database
        • Change the password of a user
        • Data type
          • General data types
          • Unsupported data types
        • Create and manage tables
          • About tables
          • Create a table
          • Define an auto-increment column by using the SEQUENCE keyword
          • About types of column constraints
          • About table structure modification
          • About table clearing
          • About table dropping
          • Flash back a dropped table
          • About table privileges
        • Create and manage partition tables
          • About partitioned tables
          • Create a partitioned table
          • Manage a partitioned table
          • Create a subpartitioned table
          • Manage a subpartitioned table
          • Partition routing
          • Indexes on partitioned tables
          • Suggestions on using partitioned tables
        • Create and manage indexes
          • Drop an index
          • About indexes
          • Create an index
        • Create and manage views
          • About views
          • Create a view
          • Modify a view
          • Drop a view
        • Create and manage sequences
          • About sequences
          • Create a sequence
          • Modify a sequence
          • Delete a sequence
        • Create and manage synonyms
          • About synonyms
          • Create a synonym
          • Delete a synonym
        • Create and manage triggers
          • About triggers
          • Create a trigger
          • Modify a trigger
          • Delete a trigger
          • Enable or disable a trigger
      • Query
        • About queries
        • Single-table queries
        • Conditional queries
        • ORDER BY queries
        • GROUP BY queries
        • Use Row_Limiting_Clause in queries
        • Query data from multiple tables
          • About multi-table join queries
          • INNER JOIN queries
          • OUTER JOIN queries
          • Subqueries
        • Use operators and functions in a query
          • 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
        • Execution plan
          • View execution plans of queries
          • Understand an execution plan
        • Use SQL hints in queries
        • About query timeout variables
      • DML statements and transactions
        • DML statement
          • About DML statements
          • About the INSERT statement
          • UPDATE statements
          • About the MERGE statement
          • About the DELETE statement
        • Transactions
          • About transaction control statements
          • Start a transaction
          • Transaction savepoints
          • Commit a transaction
          • Roll back a transaction
          • About transaction timeout
      • Common errors and solutions
        • Overview
        • Database connection error
        • About timeout
          • Idle session timeout
          • Transaction timeout errors
        • About user
          • Locked user
          • Incorrect user password
        • About object
          • Object already exists
          • Object does not exist
        • About constraint
          • Unique key conflict
          • Foreign key conflict
        • About sql
          • Data type inconsistency
  • Deploy
    • Overview
    • Deployment procedure
    • Preparations before deployment
      • Prepare servers
      • Configure servers
      • Prepare installation packages
    • HA solution for OceanBase clusters
    • Deploy through the CLI
      • Configure the deployment environment
        • Install oat-cli
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        • Configure the clock source
        • Upload installation packages
        • Configure host information
        • Check the environment before deployment
      • Deploy OCP
        • Deployment description
        • Generate a configuration file
        • Start deployment
        • Check after deployment
      • Deploy the OceanBase cluster
        • Deploy a single-replica OceanBase cluster
        • Deploy a three-replica OceanBase cluster
      • Deploy OBProxy
        • Deploy OBProxy through the CLI
      • Create an OceanBase tenant
        • View resources available for a business tenant
        • Create a tenant
        • Verify after deployment
      • Deploy OMS
        • Deployment description
        • Modify the configuration file
        • Start deployment
        • Check after deployment
      • Deploy ODC
        • Deployment description
        • Modify the configuration file
        • Start deployment
        • Check after deployment
  • Migrate
    • Overview
    • Migrate data by using SQL scripts
    • Migrate data by using MySQLDump
    • Migrate data by using DataX
    • Migrate data by using OUTFILE statements

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Overview System architecture Compatibility with MySQL Overview SQL data types Built-in functions System views Limits Quick start with OceanBase Database Usage notes Basic SQL operations (MySQL mode) Basic SQL operations (Oracle mode) Connect Python applications to OceanBase Database Connect Java applications to OceanBase Database Connect C applications to OceanBase Database Connect Python applications to OceanBase Database Connect Java applications to OceanBase Database Connect C applications to OceanBase Database Experience operational OLAP Experience parallel import and data compression Experience the multitenancy feature Overview Deployment procedure Prepare servers Configure servers Prepare installation packages HA solution for OceanBase clustersOverview Migrate data by using SQL scripts Migrate data by using MySQLDumpMigrate data by using DataX Migrate data by using OUTFILE statements
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Configure servers

Last Updated:2023-07-24 09:52:12  Updated
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What is on this page
Prepare the operating system
Configure BIOS settings
Mount disks
Configure NIC settings
Install Docker CE 17.03 or later

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This topic describes the hardware and software requirements for configuring servers.

Prepare the operating system

Prepare your operation system as required by the following table.

Linux operating system Version Server architecture
AliOS 7.2 and later x86_64 (including Hygon) or AArch64 (supporting only Kunpeng and Phytium)
Red Hat Enterprise Linux 7.2 and later x86_64 (including Hygon) or AArch64 (supporting only Kunpeng and Phytium)
SUSE Enterprise Linux 12 SP3 and later x86_64 (including Hygon) or AArch64 (supporting only Kunpeng and Phytium)
Debian or Ubuntu 8.3 and later x86_64 (including Hygon) or AArch64 (supporting only Kunpeng and Phytium)
KylinOS V10 x86_64 (including Hygon) or AArch64 (supporting only Kunpeng and Phytium)

Note

Be sure to configure the network and software manager (Yum or Zypper) for the operating system.

Configure BIOS settings

Configure the following special settings:

  • Disable non-uniform memory access (NUMA) for Intel.

  • Enable NUMA for Hygon, AMD, Kunpeng, and Arm.

Disable the following BIOS options:

  • C-State

  • P-State

  • EIST

  • Power saving

  • Turbo mode

Enable the following BIOS options:

  • Automatic Power on After Power Loss: Always on

  • Intel Virtualization Technology: on

  • SOL Console Redirection: on

  • Hyper-Threading: on

  • Hardware prefetcher: on

  • VT-d: on

  • SR-IOV: on

  • Energy Performance: Maximum Performance

Note

The method for configuring BIOS settings varies from server to server. For details, see the operation manual of your server.

Mount disks

  • Mount disks for an OceanBase Cloud Platform (OCP) server as required by the following table.

    Mounting point Size Description Disk format
    /home 100 GB to 300 GB Operation log disk for OCP components ext4 (recommended)
    /data/log1 3 to 4 times the memory size OCP MetaDB log disk ext4 (recommended)
    /data/1 Depends on the size of data to be stored OCP MetaDB data disk ext4 (recommended). If the data size is greater than 16 TB, XFS is recommended.
    /docker 200 GB to 500 GB Docker root directory ext4 (recommended)
  • Mount disks for an OBServer as required by the following table.

    Mounting point Size Description File system format
    /home 100 GB to 300 GB OBServer operation log disk ext4 (recommended)
    /data/log1 3 to 4 times the memory size OBServer log disk ext4 (recommended)
    /data/1 Depends on the size of data to be stored OBServer data disk ext4 (recommended). If the data size is greater than 16 TB, XFS is recommended.
  • Mount disks for an OceanBase Migration Service (OMS) server as required by the following table.

    Mounting point Size Description File system format
    /data/oms About 400 GB (Depends on the size of synchronization objects, the number of synchronization tasks, the frequency of DML operations on the synchronization objects, and the retention time of stores) Data disk for OMS Store components ext4 (recommended)

Note

It is recommended that the root directory be no less than 50 GB and that the /opt and /var directories not be mounted separately. If you use Logical Volume Manager (LVM), we recommend that you specify the stripe parameters when creating directories. An example is as follows:

lvcreate -n data -L 3000G obvg --stripes=3 --stripesize=128

Configure NIC settings

It is recommended that you configure two 10 Gbit/s NICs, as follows:

  • Name the bond mode bond0, mode1, or mode4 (recommended). If you use mode4, you must configure 802.3ad for the vSwitch.
  • Name the two NICs eth0 and eth1 respectively.
  • Use network service, not NetworkManager.

Install Docker CE 17.03 or later

Install Docker CE 17.03 or later on servers where OceanBase Admin Toolkit (OAT), OceanBase Developer Center (ODC), and OMS are deployed.

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Prepare installation packages
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What is on this page
Prepare the operating system
Configure BIOS settings
Mount disks
Configure NIC settings
Install Docker CE 17.03 or later