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OMS Documentation What is OMS? Terms OMS HA Principles of Store Principles of Full-Import and Incr-Sync Data verification principles Overview Hierarchical functional system Basic components OMS Oracle full data migration design and impact Limitations Data migration process Data synchronization process Deployment types System and network requirements Memory and disk requirements Environment preparations Deploy OMS on a single node Deploy OMS on multiple nodes in a single region Deploy OMS on multiple nodes in multiple regions Integrate the OIDC protocol to OMS to implement SSO Scale out Check the deployment Deploy a time-series database (Optional) Log in to the OMS console Overview Configure user information Change your login password Log out Overview 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 from an Oracle database to a MySQL-compatible tenant of OceanBase Database Migrate data from an Oracle-compatible tenant of OceanBase Database to an Oracle database Migrate data from an Oracle database to an Oracle-compatible tenant of OceanBase Database Migrate data from a DB2 LUW database to an Oracle-compatible OceanBase database Migrate data from an Oracle-compatible tenant of OceanBase Database to a DB2 LUW database Migrate data from a DB2 LUW database to a MySQL-compatible tenant of OceanBase Database Migrate data from a MySQL-compatible tenant of OceanBase Database to a DB2 LUW database Migrate data within OceanBase Database Create an active-active disaster recovery task in OceanBase Database Migrate data from a TiDB database to a MySQL-compatible tenant of OceanBase Database Migrate data from a PostgreSQL database to a MySQL-compatible tenant of OceanBase Database Migrate data from a PolarDB-X 1.0 database to a MySQL-compatible tenant of OceanBase Database Migrate incremental data from an Oracle-compatible tenant of OceanBase Database to a MySQL database View details of a data migration task Rename a data migration task View and modify migration objects Use tags to Manage data migration tasks Perform batch operations on data migration tasks Download and import settings of migration objects View and modify the parameter configurations of a data migration task Start and pause a data migration task Release and delete a data migration task Synchronize DDL operations from a MySQL-compatible tenant of OceanBase Database to a MySQL database DDL synchronization from an Oracle-compatible tenant of OceanBase Database to an Oracle database Synchronize DDL operations from a DB2 LUW database to an Oracle-compatible tenant of OceanBase Database Synchronize DDL operations from an Oracle-compatible tenant of OceanBase Database to a DB2 LUW database Synchronize DDL operations from a DB2 LUW database to a MySQL-compatible tenant of OceanBase Database Synchronize DDL operations from a MySQL-compatible tenant of OceanBase Database to a DB2 LUW database DDL synchronization between MySQL-compatible tenants of OceanBase Database DDL synchronization between Oracle-compatible tenants of OceanBase Database Overview Synchronize data from OceanBase Database to a Kafka instance Synchronize data from OceanBase Database to a RocketMQ instance Synchronize data from OceanBase Database to a DataHub instance Synchronize data from an ODP logical table to a physical table in a MySQL-compatible tenant of OceanBase Database Synchronize data from an ODP logical table to a DataHub instance Synchronize data from an IDB logical table to a physical table in a MySQL-compatible tenant of OceanBase Database Synchronize data from an IDB logical table to a DataHub instance Synchronize data from a MySQL database to a DataHub instance Synchronize data from an Oracle database to a DataHub instance View details of a data synchronization task Change the name of a data synchronization task View and modify synchronization objects Use tags to Manage data synchronization tasks Perform batch operations on data synchronization tasks Download and import the settings of synchronization objects View and modify the parameter configurations of a data synchronization task Start and pause a data synchronization task Release and delete a data synchronization task Create a MySQL data source Create an Oracle data source Create a TiDB data source Create a Kafka data source Create a RocketMQ data source Create a DataHub data source Create a DB2 LUW data source Create a PostgreSQL data source Create a PolarDB-X 1.0 data source View data source information Copy a data source Edit a data source Delete a data source Create a database user User privileges Enable binlogs for the MySQL database Minimum privileges required when an Oracle database serves as the source O&M overview
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  3. V4.2.4
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CreateProject

Last Updated:2026-04-14 07:36:49  Updated
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Purpose
Call description
Limitations
Request path
Request parameters
Response parameters
Examples
Request example
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This topic describes the CreateProject API provided by OceanBase Migration Service (OMS): how to create a migration project.

Purpose

This interface is used to create a data migration or synchronization task.

Call description

Limitations

This interface applies only to OMS V4.1.0 and later.

Request path

POST /api/v2?Action=CreateProject

Request parameters

Parameter Type Description
name string The name of the task, which cannot contain spaces.
type string The type of the task. Valid values: MIGRATION (indicating a data migration task) and SYNC (indicating a data synchronization task).
labelIds array A collection of tag IDs. At most five tag IDs are supported.
sourceEndpointId string The ID of the source data source. To obtain the ID, call the ListDataSource interface. The ID is in the format of e_****.
sinkEndpointId string The ID of the destination data source. To obtain the ID, call the ListDataSource interface. The ID is in the format of e_****.
transferMapping object The mapping information about objects to be transferred.
├─ mode string The object mapping mode. Valid values: SPECIFIC (indicating specific objects) and WILDCARD (indicating matching rules).
├─ databases object [] A list of database objects. For more information about the specific fields, see "Parameters in databases/databasesBlack".
├─ databasesBlack object [] A list of blacklisted database objects in the matching rules mode. For more information about the specific fields, see "Parameters in databases/databasesBlack".
├─ tableAndViewWhiteList array The whitelist of tables and views in the matching rules mode.
├─ tableAndViewBlackList array The blacklist of tables and views in the matching rules mode.
commonTransferConfig object General transfer configurations.
├─ tableCategory string The supported table type. Valid values: ALL (all tables), WITH_UNIQUE_ROW_ID (tables with unique row identifiers), and WITHOUT_UNIQUE_ROW_ID (tables without unique row identifiers). Default value: ALL.
├─ activeActive boolean Specifies whether the scenario is a disaster recovery dual-active scenario.
├─ mqSerializerType string The JSON serialization type when data is delivered to a message queue. Valid values: DEFAULT, CANAL, DATAWORKS_V2, SHAREPLEX, DEFAULT_WITH_SCHEMA, DEBEZIUM, DEBEZIUMFLATTEN, and DEBEZIUMSMT.
├─ mqPartitionMode string The partition routing mode when data is delivered to a message queue. Valid values: ONE (specify the partition to deliver data to), HASH (hash partition data based on primary keys or shard column values), and TABLE (hash partition data based on database and table names).
├─ mqPartition integer When partitionMode is ONE, this parameter specifies the position of the partition in the current topic.
├─ datahubTopicType string The type of the topic to which data is delivered to a DataHub instance. Valid values: TUPLE and BLOB.
├─ rocketMqProducerGroup string The name of the producer group. This parameter is effective only when the destination data source is a RocketMQ data source. Default value: OMS.
├─ rocketMqMsgTags string The message tags. This parameter is effective only when the destination data source is a RocketMQ data source. Default value: default->default_tag. If the value of this parameter is default, _tag is appended as the suffix.
├─ rocketMqEnableMsgTrace boolean Specifies whether to enable message tracing. This parameter is effective only when the destination data source is a RocketMQ data source.
├─ rocketMqSendMsgTimeout long The timeout period for sending messages. This parameter is effective only when the destination data source is a RocketMQ data source.
├─ dataWorksBusinessName string The identifier of the business system. This parameter specifies the source of the business system for data. This parameter is supported only when the serializer is set to DataWorks. The value of this parameter must be 1 to 20 characters in length.
├─ sinkStoreFormat string The object storage type of the destination table. Valid values: Default, Row storage, Column storage, and Hybrid columnar storage.
This parameter is effective only when the destination OceanBase Database is V4.3.0 or later and the migration type is Schema Migration or Incremental Synchronization > DDL synchronization.
├─ sourceStoreFormat string The object storage type of the source table. Valid values: Default, Row storage, Column storage, and Hybrid columnar storage.
This parameter is effective only when the source OceanBase Database is V4.3.0 or later and the migration type is Reverse Increment > DDL synchronization.
enableStructTransfer boolean Specifies whether to allow schema transfer.
structTransferConfig object The configuration of schema transfer.
├─ byteCharConvertStrategy string The byte/char conversion strategy. Valid values: IGNORE_BYTE_IF_BYTE_USED, FORCE_CHAR_IF_BYTE_USED, EXPAND_LEN_IF_BYTE_USED, and DO_NOTHING_IF_BYTE_USED (default).
├─ deferIndexCreation boolean Specifies whether to allow index creation to be postponed. The default value is false.
enableFullTransfer boolean Specifies whether to enable full data transfer.
enableFullVerify boolean Specifies whether to enable full data verification.
fullTransferConfig object The configuration of full data transfer.
├─ nonePkUkTruncateDstTable boolean Specifies whether to truncate the destination table when performing full data migration for a source table without a unique index.
├─ allowDestTableNotEmpty boolean The processing strategy when the destination table contains records. Valid values: Ignore and Stop Migration.
  • If this parameter is set to true, the migration ignores the existing data in the destination table. When data is written to the destination table, conflicts with the original data are logged, and the original data is retained.

    Notice

    If you select Ignore, full verification will use the IN mode to pull data, which cannot verify cases where the destination table contains data that the source table does not have. The performance of full verification will also be degraded to some extent.

  • If this parameter is set to false, the migration is stopped when the destination table contains data. An error is returned, indicating that the migration is not allowed. You must clean up the data in the destination table before you continue the migration.

    Notice

    If you click Resume after an error occurs, the OMS console will ignore this parameter and continue to migrate table data. Proceed with caution.

├─ throttleRps integer The maximum allowed transfer rate in terms of the number of records per second during full data transfer. Set this parameter to null to indicate no restriction on RPS.
├─ throttleIOPS integer The maximum allowed transfer rate in terms of bytes per second during full data transfer. Set this parameter to null to indicate no restriction on IOPS.
enableIncrTransfer boolean Specifies whether to enable incremental synchronization.
enableReverseIncrTransfer boolean Specifies whether to enable reverse incremental synchronization.
incrTransferConfig object The configuration of incremental synchronization.
├─ startTimestamp string The starting timestamp for incremental synchronization. This parameter is supported only when incremental synchronization is enabled but full data transfer is not enabled.
├─ recordTypeWhiteList array The data types of incremental data to be synchronized in incremental synchronization mode. Valid values: HEARTBEAT, INSERT, UPDATE, DELETE, BEGIN, COMMIT, ROLLBACK, DDL, and ROW.
├─ storeLogKeptHour integer The log retention period in hours when the incremental log puller is a Store. The default value is 7, and the maximum value is 365.
├─ enableSequencingWithinTxn boolean Specifies whether to enable sequence number arrangement within a transaction when the incremental log puller is a Store.
├─ enableIncrSyncStatistics boolean Specifies whether to enable statistics collection for incremental records (DML and DDL).
├─ incrOnlineDdlConfig array The value of this parameter indicates the name of an Online DDL tool. Valid values: GH_OST, PT_OSC, and ALIYUN_DMS, which indicate gh-ost, pt-osc, and Alibaba Cloud DMS, respectively.
  • This parameter is effective only in the configuration of forward incremental synchronization for data migration from a MySQL database to a MySQL-compatible tenant of OceanBase Database.
  • This parameter is effective only in the configuration of reverse incremental synchronization for data migration from a MySQL-compatible tenant of OceanBase Database to a MySQL database.
├─ incrSyncConcurrency integer The number of threads for incremental synchronization. The default value is 64.
├─ incrLogPullSpeedMode string The incremental log pulling speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM (custom).
├─ incrLogPullSpeedConfig object The incremental log pulling resource configuration. This parameter is effective only when incrLogPullSpeedMode is set to CUSTOM.
├─├─ memory integer The maximum memory size allowed for incremental log pulling.
├─ incrLogSyncSpeedMode string The incremental data writing speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM (custom).
├─ incrLogSyncSpeedConfig object The incremental data writing resource configuration. This parameter is effective only when incrLogSyncSpeedMode is set to CUSTOM.
├─├─ memory integer The maximum memory size allowed for incremental log writing.
├─├─ writerWorkerNum integer The number of concurrent incremental log writers.
├─ throttleRps integer The maximum allowed transfer rate in terms of the number of records per second during incremental synchronization. Set this parameter to null to indicate no restriction on RPS.
├─ throttleIOPS integer The maximum allowed transfer rate in terms of bytes per second during incremental synchronization. Set this parameter to null to indicate no restriction on IOPS.
├─ supportDDLTypes array The supported DDL types.
  • CREATE_TABLE
  • ALTER_TABLE
  • DROP_TABLE
  • RENAME_TABLE
  • TRUNCATE_TABLE
  • CREATE_INDEX
  • DROP_INDEX
reverseIncrTransferConfig object The configuration of reverse incremental synchronization.
├─ startTimestamp string The starting timestamp for reverse incremental synchronization. This parameter is supported only when incremental synchronization is enabled but full data transfer is not enabled.
├─ recordTypeWhiteList array The data types of incremental data to be synchronized in reverse incremental synchronization mode. Valid values: HEARTBEAT, INSERT, UPDATE, DELETE, BEGIN, COMMIT, ROLLBACK, DDL, and ROW.
├─ storeLogKeptHour integer The log retention period in hours when the incremental log puller is a Store for reverse incremental synchronization. The default value is 7, and the maximum value is 365.
├─ enableSequencingWithinTxn boolean Specifies whether to enable sequence number arrangement within a transaction when the incremental log puller is a Store for reverse incremental synchronization.
├─ enableIncrSyncStatistics boolean Specifies whether to enable statistics collection for incremental records (DML and DDL) in reverse incremental synchronization.
├─ incrOnlineDdlConfig array The value of this parameter indicates the name of an Online DDL tool. Valid values: GH_OST, PT_OSC, and ALIYUN_DMS, which indicate gh-ost, pt-osc, and Alibaba Cloud DMS, respectively.
  • This parameter is effective only in the configuration of forward incremental synchronization for data migration from a MySQL database to a MySQL-compatible tenant of OceanBase Database.
  • This parameter is effective only in the configuration of reverse incremental synchronization for data migration from a MySQL-compatible tenant of OceanBase Database to a MySQL database.
├─ incrSyncConcurrency integer The number of threads for reverse incremental synchronization. The default value is 64.
├─ incrLogPullSpeedMode string The incremental log pulling speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM (custom).
├─ incrLogPullSpeedConfig object The incremental log pulling resource configuration. This parameter is effective only when incrLogPullSpeedMode is set to CUSTOM.
├─├─ memory integer The maximum memory size allowed for incremental log pulling.
├─ incrLogSyncSpeedMode string The incremental data writing speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM (custom).
├─ incrLogSyncSpeedConfig object The incremental data writing resource configuration. This parameter is effective only when incrLogSyncSpeedMode is set to CUSTOM.
├─├─ memory integer The maximum memory size allowed for incremental log writing.
├─├─ writerWorkerNum integer The number of concurrent incremental log writers.
├─ throttleRps integer The maximum allowed transfer rate in terms of the number of records per second during reverse incremental synchronization. Set this parameter to null to indicate no restriction on RPS.
├─ throttleIOPS integer The maximum allowed transfer rate in terms of bytes per second during reverse incremental synchronization. Set this parameter to null to indicate no restriction on IOPS.
├─ supportDDLTypes array The supported DDL types.
  • CREATE_TABLE
  • ALTER_TABLE
  • DROP_TABLE
  • RENAME_TABLE
  • TRUNCATE_TABLE
  • CREATE_INDEX
  • DROP_INDEX
  • Parameters in databases/databasesBlack

    Parameter Type Description
    mappedName string The name of the database in the target.
    name string The name of the database in the source.
    id string The ID of the database.
    tables array The configurations of table objects to be transferred in the current database. When mode is WILDCARD, this parameter specifies the configurations of blacklisted or whitelisted tables and views.
    ├─ mappedName string The mapped name of a table.
    ├─ name string The name of a table.
    ├─ id string The ID of a table.
    ├─ whereClause string A standard SQL WHERE clause for configuring row filtering.

    Notice

    When mode is WILDCARD, you cannot set whereClause.

    ├─ filterColumns array A collection of filtered columns.

    Notice

    When mode is WILDCARD, you cannot set filterColumns.

    ├─ shardColumns array A collection of sharding columns.

    Notice

    When mode is WILDCARD, you cannot set shardColumns.

    views array The configurations of view objects to be transferred in the current database.
    ├─ mappedName string The mapped name of a view.
    ├─ name string The name of a view.
    ├─ id string The ID of a view.
    ├─ whereClause string A standard SQL WHERE clause for configuring row filtering.

    Notice

    When mode is WILDCARD, you cannot set whereClause.

    ├─ filterColumns array A collection of filtered columns.

    Notice

    When mode is WILDCARD, you cannot set filterColumns.

    ├─ shardColumns array A collection of sharding columns.

    Notice

    When mode is WILDCARD, you cannot set shardColumns.

    specificTables array The configurations of specific table objects. When mode is WILDCARD, this parameter specifies the renaming and row filtering configurations for specific table objects.
    ├─ mappedName string The mapped name of a table.
    ├─ name string The name of a table.
    ├─ id string The ID of a table.
    ├─ whereClause string A standard SQL WHERE clause for configuring row filtering.

    Notice

    When mode is WILDCARD, you cannot set whereClause.

    ├─ filterColumns array A collection of filtered columns.

    Notice

    When mode is WILDCARD, you cannot set filterColumns.

    ├─ shardColumns array A collection of sharding columns.

    Notice

    When mode is WILDCARD, you cannot set shardColumns.

    specificViews array The configurations of specific view objects. When mode is WILDCARD, this parameter specifies the renaming configurations for specific view objects.
    ├─ mappedName string The mapped name of a view.
    ├─ name string The name of a view.
    ├─ id string The ID of a view.
    ├─ whereClause string A standard SQL WHERE clause for configuring row filtering.

    Notice

    When mode is WILDCARD, you cannot set whereClause.

    ├─ filterColumns array A collection of filtered columns.

    Notice

    When mode is WILDCARD, you cannot set filterColumns.

    ├─ shardColumns array A collection of sharding columns.

    Notice

    When mode is WILDCARD, you cannot set shardColumns.

Response parameters

Parameter Type Description
success boolean Specifies whether the call is successful.
errorDetail object Details about the error.
code string Error code.
message string Description.
advice string Suggestion.
requestId string Request ID.
pageNumber integer[int32] The page number. This parameter is effective only for paged queries.
pageSize integer[int32] The number of records per page. This parameter is effective only for paged queries.
totalCount integer[int64] The total number of records. This parameter is effective only for paged queries.
cost string The time consumed in the request, in seconds.
data string The ID of the task.

Examples

Request example

{
    "name":"test",
    "type":"MIGRATION",
    "labelIds":[
        "l_4w****wygjk"
    ],
    "sourceEndpointId":"e_4wg07f****",
    "sinkEndpointId":"e_4wfy2****",
    "transferMapping":{
        "mode":"SPECIFIC",
        "databases":[
            {
                "mappedName":"gez3***",
                "name":"ion1****bmysql",
                "id":null,
                "tables":[
                    {
                        "mappedName":"tion12***20obmysql2",
                        "name":"GRATION129****",
                        "id":null,
                        "whereClause":null,
                        "filterColumns":null,
                        "shardColumns":null,
                    }
                ],
                "views":null,
                "specificTables":null,
                "specificViews":null
            }
        ],
        "databasesBlack":null,
        "tableAndViewWhiteList":null,
        "tableAndViewBlackList":null
    },
    "commonTransferConfig":{
        "tableCategory":null,
        "activeActive":false,
        "mqSerializerType":null,
        "mqPartitionMode":null,
        "mqPartition":0,
        "datahubTopicType":null,
        "rocketMqProducerGroup":null,
        "rocketMqMsgTags":null,
        "rocketMqEnableMsgTrace":null,
        "rocketMqSendMsgTimeout":null,
        "dataWorksBusinessName":null
    },
    "enableStructTransfer":true,
    "structTransferConfig":{
        "byteCharConvertStrategy":"DO_NOTHING_IF_BYTE_USED",
        "deferIndexCreation":true
    },
    "enableFullTransfer":true,
    "enableFullVerify":true,
    "fullTransferConfig":{
        "nonePkUkTruncateDstTable":null,
        "allowDestTableNotEmpty":true,
        "throttleRps": 1000,
        "throttleIOPS": 1000,
        "fullTransferSpeedMode":"NORMAL",
        "fullVerifySpeedMode":"NORMAL"     
    },
    "enableIncrTransfer":true,
    "enableReverseIncrTransfer":true,
    "incrTransferConfig":{
        "startTimestamp":1689201369,
        "storeLogKeptHour":120,
        "recordTypeWhiteList":[
            "DELETE",
            "INSERT",
            "UPDATE"
        ],
        "enableSequencingWithinTxn":true,
        "incrSyncConcurrency":64,
        "incrLogPullSpeedMode":"NORMAL",
        "incrLogPullSpeedConfig":{
            "memory":4
            },
        "incrLogSyncSpeedMode":"CUSTOM",
        "incrLogSyncSpeedConfig":{
            "memory":4,
            "writerWorkerNum":2
            },
        "throttleRps": 1000,
        "throttleIOPS": 1000,
        "enableIncrSyncStatistics":true,
        "supportDDLTypes":[
            "CREATE_TABLE",
            "ALTER_TABLE"
        ],
        "incrOnlineDdlConfig":[
          "GH_OST",
          "PT_OSC",
          "ALIYUN_DMS"
        ]
    },
    "reverseIncrTransferConfig":{
        "startTimestamp":1689201369,
        "recordTypeWhiteList":[
            "DELETE",
            "INSERT",
            "UPDATE"
        ],
        "storeLogKeptHour":120,
        "incrSyncConcurrency":64,
        "incrLogPullSpeedMode":"NORMAL",
        "incrLogPullSpeedConfig":{
            "memory":4
            },
        "incrLogSyncSpeedMode":"CUSTOM",
        "incrLogSyncSpeedConfig":{
            "memory":4,
            "writerWorkerNum":2
            },
        "throttleRps": 1000,
        "throttleIOPS": 1000,
        "enableIncrSyncStatistics":true,
        "supportDDLTypes":[
            "CREATE_TABLE",
            "ALTER_TABLE"
        ]
    }
}

Response example

{
    "Success":true,
    "ErrorDetail":{
        "Code":"CM-RES***11",
        "Level":"WARN",
        "Message":"A system error occurred.",
        "Proposal":"Contact the administrator."
    },
    "Code":"INNER_ERROR",
    "Message":"A system error occurred.",
    "Advice":"Contact the administrator.",
    "RequestId":"XCVSADG****DSGDS",
    "PageNumber":1,
    "PageSize":1,
    "TotalCount":1,
    "Cost":"27 ms",
    "Data":"np_****"
}

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