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    CreateProject

    Last Updated:2026-04-16 07:09:24  Updated
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    This topic describes the CreateProject operation provided by OceanBase Migration Service (OMS) Community Edition.

    Overview

    You can call this operation to create a data migration or synchronization task.

    API details

    Limitations

    This operation is supported in OMS Community Edition V4.1.1 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 and SYNC.
    labelIds array The tag IDs. You can specify up to five tag IDs.
    importance string The alert level of the task. Valid values: IGNORE, LOW, MEDIUM, and HIGH.
    sourceEndpointId string The ID of the source data source. You must call the ListDataSource operation to obtain the ID, which is in the e_**** format.
    sinkEndpointId string The ID of the target data source. You must call the ListDataSource operation to obtain the ID, which is in the e_**** format.
    preCheckId string The ID of the precheck task (optional). If you specify the preCheckId parameter, the precheck step of the current task uses the precheck specified by the preCheckId parameter. If you do not specify the preCheckId parameter, a new precheck task is created.
    transferMapping object The mapping information about the objects to be transferred.
    ├─ mode string The mapping mode for the objects to be transferred. Valid values: SPECIFIC and WILDCARD, which indicate specifying specific objects and matching objects by using a rule, respectively.
    ├─ databases array The list of database objects. For more information, see the Parameters in databases/databasesBlack section.
    ├─ databasesBlack array The blocklist of database objects used for the WILDCARD mode. For more information, see the Parameters in databases/databasesBlack section.
    ├─ tableAndViewWhiteList array The wildcard-based allowlist of tables and views used for the WILDCARD mode.
    ├─ tableAndViewBlackList array The wildcard-based blocklist of tables and views used for the WILDCARD mode.
    commonTransferConfig object The common settings for transfer.
    ├─ tableCategory string The supported table types. Valid values: ALL (all tables), WITH_UNIQUE_ROW_ID (tables with a unique row ID), and WITHOUT_UNIQUE_ROW_ID (tables without a unique row ID). Default value: ALL.
    ├─ activeActive boolean Indicates whether active-active disaster recovery is enabled.
    ├─ mqSerializerType string The JSON data serialization type for delivering data to message queues. Valid values: DEFAULT, CANAL, DATAWORKS_V2, SHAREPLEX, DEFAULT_WITH_SCHEMA, DEBEZIUM, DEBEZIUMFLATTEN, and DEBEZIUMSMT.
    ├─ mqPartitionMode string The partition routing mode for delivering data to message queues. Valid values: ONE, HASH, and TABLE. ONE specifies to deliver data to a specified partition. HASH specifies to deliver data to HASH partitions based on the primary key column or sharding columns. TABLE specifies to deliver data to HASH partitions based on database and table names.
    ├─ mqPartition integer When the value of the partitionMode parameter is ONE, this parameter indicates the location of the partition to which data is delivered in the current topic.
    ├─ datahubTopicType string The type of the topic for delivering data to DataHub. Valid values: TUPLE and BLOB.
    ├─ rocketMqProducerGroup string The name of the producer group. This parameter takes effect when the type of the target is RocketMQ. The default value is OMS.
    ├─ rocketMqMsgTags string The tag of the message. This parameter takes effect when the type of the target is RocketMQ. For example, when the value is default, the _tag suffix is added to the value by default.
    ├─ rocketMqEnableMsgTrace boolean Indicates whether message tracing is enabled. This parameter takes effect when the type of the target is RocketMQ.
    ├─ rocketMqSendMsgTimeout long The message delivery timeout period. This parameter takes effect when the type of the target is RocketMQ.
    ├─ dataWorksBusinessName string The ID of the business system.
    enableStructTransfer boolean Indicates whether schema transfer is allowed.
    structTransferConfig object The settings for schema transfer.
    ├─ byteCharConvertStrategy string The BYTE/CHAR conversion scheme. Valid values: IGNORE_BYTE_IF_BYTE_USED, FORCE_CHAR_IF_BYTE_USED, EXPAND_LEN_IF_BYTE_USED, and DO_NOTHING_IF_BYTE_USED. The default value is DO_NOTHING_IF_BYTE_USED.
    ├─ deferIndexCreation boolean Indicates whether post-indexing is allowed. The default value is false.
    ├─ shardsCount integer The number of index shards.
    ├─ replicasCount integer The number of index replicas.
    ├─ dateFormat string The date format. For example, yyyy-MM-dd HH:mm:ss.
    enableFullTransfer boolean Indicates whether full transfer is enabled.
    enableFullVerify boolean Indicates whether full verification is enabled.
    fullTransferConfig object The settings for full transfer.
    ├─ nonePkUkTruncateDstTable boolean Indicates whether the target table is cleared during full migration from a table without a unique index.
    ├─ allowDestTableNotEmpty string The processing strategy to apply when the target table has records, including Ignore and Stop Migration.
    • The value true indicates that Ignore is selected. If the target is a MySQL database or OceanBase Database Community Edition, OMS Community Edition overwrites the existing data in the target table.

      Notice

      If you set the value to true, data is pulled in IN mode for full verification. In this case, the scenario where the target table contains more data than the source table cannot be verified, and the verification efficiency will be decreased.

    • The value false indicates that Stop Migration is selected. If the target table has records, an error is returned during full migration. In this case, clear the existing data in the target table and try again.

      Notice

      After an error is returned, if you click Resume in the dialog box, OMS Community Edition ignores this error and continues to migrate data. Proceed with caution.

    ├─ fullTransferSpeedMode string The concurrency for full migration. Valid values: STEADY, NORMAL, and FAST.
    ​If full migration is involved, the fullTransferSpeedMode parameter is required and can be set to NORMAL.
    ├─ fullVerifySpeedMode string The concurrency for full verification. Valid values: STEADY, NORMAL, and FAST.
    ​If full verification is involved, the fullVerifySpeedMode parameter is required and can be set to NORMAL.
    enableIncrTransfer boolean Specifies whether to enable incremental synchronization.
    enableReverseIncrTransfer boolean Specifies whether to enable reverse increment.
    incrTransferConfig object The settings for incremental synchronization.
    ├─ startTimestamp string The start timestamp for incremental synchronization. This parameter is available only when incremental synchronization is enabled and full transfer is disabled.
    ├─ recordTypeWhiteList array The data types of incremental data synchronized in incremental synchronization. Supported data types are HEARTBEAT, INSERT, UPDATE, DELETE, BEGIN, COMMIT, ROLLBACK, DDL, and ROW.
    ├─ storeLogKeptHour integer The retention period of logs when incremental synchronization is enabled and the Store component is used to pull incremental logs. Unit: hours. The default retention period is seven days. The maximum retention period is 365 days.
    ├─ enableSequencingWithinTxn boolean Indicates whether intra-transaction sequencing is enabled when incremental synchronization is enabled and the Store component is used to pull incremental logs.
    ├─ incrSyncConcurrency integer The number of threads for incremental synchronization. Default value: 64.
    ├─ enableIncrSyncStatistics boolean Indicates whether statistics collection is enabled for incremental DML and DDL operation records.
    • Parameters in databases/databasesBlack

      Parameter
      Type
      Description
      mappedName string The name of the target database.
      name string The name of the source database.
      id string The ID of the database.
      tables array The settings for the table objects to be transferred in the current database. When the value of the mode parameter is WILDCARD, this parameter indicates the settings for a specific blocklist or allowlist of tables and views.
      ├─ mappedName string The mapped-to table name.
      ├─ name string The name of the table.
      ├─ id string The ID of the table.
      ├─ whereClause string The WHERE clause in the standard SQL syntax that is used to configure row filtering.
      ├─ filterColumns array The filter columns.
      ├─ shardColumns array The sharding columns.
      views array The settings for the view objects to be transferred in the current database.
      ├─ mappedName string The mapped-to view name.
      ├─ name string The name of the view.
      ├─ id string The ID of the view.
      ├─ whereClause string The WHERE clause in the standard SQL syntax that is used to configure row filtering.
      ├─ filterColumns array The filter columns.
      ├─ shardColumns array The sharding columns.
      specificTables array The settings for the matched table objects. When the value of the mode parameter is WILDCARD, this parameter indicates the renaming and row filtering settings for the matched table objects.
      ├─ mappedName string The mapped-to table name.
      ├─ name string The name of the table.
      ├─ id string The ID of the table.
      ├─ whereClause string The WHERE clause in the standard SQL syntax that is used to configure row filtering.
      ├─ filterColumns array The filter columns.
      ├─ shardColumns array The sharding columns.
      specificViews array The settings for the matched view objects. When the value of the mode parameter is WILDCARD, this parameter indicates the renaming settings for the matched view objects.
      ├─ mappedName string The mapped-to view name.
      ├─ name string The name of the view.
      ├─ id string The ID of the view.
      ├─ whereClause string The WHERE clause in the standard SQL syntax that is used to configure row filtering.
      ├─ filterColumns array The filter columns.
      ├─ shardColumns array The sharding columns.
      procedures array The settings for stored procedures in the current database.
      ├─ name string The name of the stored procedure.
      ├─ mappedName string The mapped-to stored procedure name.
      functions array The settings for functions in the current database.
      ├─ name string The name of the function.
      ├─ mappedName string The mapped-to function name.

    Response parameters

    Parameter
    Type
    Description
    success boolean Indicates whether the call is successful.
    errorDetail object The error details.
    code string The error code.
    message string The error description.
    advice string The suggestions.
    requestId string The ID of the request.
    pageNumber integer[int32] The number of the page returned.
    pageSize integer[int32] The number of records returned on each page.
    totalCount integer[int64] The total number of records returned.
    cost string The time spent in processing the request, in seconds.
    data string The ID of the task.

    Examples

    Request example

    {
     "name": "test",
     "type": "MIGRATION",
     "labelIds": [
      "l_4w****wygjk"
     ],
     "importance": "LOW",
     "sourceEndpointId": "e_4wg07f****",
     "sinkEndpointId": "e_4wfy2****",
     "preCheckId": "t_7di****",
     "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,
       "procedures": [{
        "name": "baxxx_crxxx_user",
        "mappedName": "baxxx_crxxx_user_rename"
       }],
       "functions": [{
        "name": "rand_string",
        "mappedName": "rand_string_rename"
       }],
       "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,
      "shardsCount": 1,
      "replicasCount": 1,
      "dateFormat": "yyyy-MM-dd HH:mm:ss"
     },
     "enableFullTransfer": true,
     "enableFullVerify": true,
     "fullTransferConfig": {
      "nonePkUkTruncateDstTable": null,
      "allowDestTableNotEmpty": true,
      "fullTransferSpeedMode": "NORMAL",
      "fullVerifySpeedMode": "NORMAL"
     },
     "enableIncrTransfer": true,
     "enableReverseIncrTransfer": true,
     "incrTransferConfig": {
      "startTimestamp": 1689201369,
      "recordTypeWhiteList": [
       "DELETE",
       "INSERT",
       "UPDATE"
      ],
      "storeLogKeptHour": 120,
      "enableSequencingWithinTxn": true,
      "incrSyncConcurrency": 64,
      "enableIncrSyncStatistics": true
     }
    }
    

    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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