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      • Synchronize DDL operations from the MySQL compatible mode of OceanBase Database to a MySQL database
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      • Synchronize DDL operations from the Oracle compatible mode of OceanBase Database to an Oracle database
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      • Synchronize DDL operations from the Oracle compatible mode 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 the MySQL compatible mode of OceanBase Database to a DB2 LUW database
      • Synchronize DDL operations between MySQL-compatible tenants of OceanBase Database
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    • Features
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        • What are the strategies for ensuring the message order in incremental data synchronization to Kafka
    • Data migration
      • User privileges
        • What privileges do I need to grant to a user during data migration to or from an Oracle database?
      • Full migration
        • How do I query the ID of a checker?
        • How do I query log files of the Checker component of OMS?
        • How do I query the verification result files of the Checker component of OMS?
        • What do I do if the target table does not exist?
        • What can I do when the full migration failed due to LOB fields?
        • What do I do if garbled characters cannot be written into OceanBase Database V3.1.2?
      • Incremental synchronization
        • How do I skip DDL statements?
        • How do I migrate an Oracle database object whose name exceeds 30 bytes in length?
        • How do I update whitelists and blacklists?
        • What are the application scope and limits of ETL?
    • Installation and deployment
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  • Release Note
    • Release Note
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OMS Documentation Overview of 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 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 Scale out Scale down deployment 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 the MySQL compatible mode of OceanBase Database Migrate data from the Oracle compatible mode of OceanBase Database to an Oracle database Migrate data from an Oracle database to the Oracle compatible mode of OceanBase Database Migrate data from a DB2 LUW database to an Oracle-compatible tenant of 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 between OceanBase databases of the same tenant type Configure a bidirectional synchronization task Migrate data from a TiDB database to a MySQL-compatible tenant of OceanBase Database Migrate data from a PostgreSQL database to the Oracle compatible mode of OceanBase Database Migrate data from a PostgreSQL database to the MySQL compatible mode 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 migration parameters Download a conflict log file Start and pause a data migration task End and delete a data migration task Synchronize DDL operations from the MySQL compatible mode of OceanBase Database to a MySQL database Synchronize DDL operations from the Oracle compatible mode 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 the Oracle compatible mode 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 the MySQL compatible mode of OceanBase Database to a DB2 LUW database Synchronize DDL operations between MySQL-compatible tenants of OceanBase Database DDL synchronization between Oracle-compatible tenants of OceanBase Database DDL operations for synchronizing data from a PostgreSQL database to the MySQL compatible mode of OceanBase Database DDL synchronization from PostgreSQL to OceanBase Database in Oracle compatible mode 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 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 End and delete a data synchronization task Overview Create a data validation task View details of a data validation task Change the name of a data validation task View and modify validation objects View and modify validation parameters Manage data validation tasks by using tags Import validation objects Start, stop, and resume a data validation task Clone a data validation task Delete a data validation task Create a MySQL data source Create an Oracle data source Create a TiDB data source
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DescribeProject

Last Updated:2025-10-21 10:56:45  Updated
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What is on this page
Purpose
Call description
Limitations
Request path
Request parameters
Response parameters
Examples
Request example
Response example
Appendix E
Kafka
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RocketMQ
OceanBase
TiDB

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This topic describes the OceanBase Migration Service (OMS) OpenAPI: DescribeProject, which is used to query the details of a task.

Purpose

This interface is used to query the details of a data migration, synchronization, or verification task.

Call description

Limitations

This interface applies to OMS V4.1.0 and later.

Request path

POST /api/v2?Action=DescribeProject

Request parameters

Parameter Type Description
id string The ID of the data migration, synchronization, or verification task.

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 Advice.
requestId string The request ID.
pageNumber integer Page number, takes effect only when paged queries are performed.
pageSize integer Page size, takes effect only when paged queries are performed.
totalCount integer Total number of records, takes effect only when paged queries are performed.
cost string The time spent in processing the request, in seconds.
data string Information about the task. For specific information, see "Parameters in data".
  • Parameters in data

    Parameter Type Description
    id string The task ID.
    type string The task type. MIGRATION: data migration task. SYNC: data synchronization task. VERIFY: data verification task.
    name string The task name, which cannot contain spaces.
    labels object [] The tag set.
    ├─ id string Tag ID.
    ├─ name string Tag name.
    owner string The task owner.
    importance string The alert level of the task. Valid values: HIGH, MEDIUM, LOW, and IGNORE.
    status string The task status.
    gmtCreate string The task creation time, in the format of UTC + 0.
    gmtModified string The task modification time, in the format of UTC + 0.
    gmtStart string The task start time.
    gmtFinish string The task end time.
    destConnId string The task connection information ID.
    isMerging boolean Indicates whether the task is in the merging state.
    isModifying boolean Indicates whether the task is in the modification state.
    isSubProject boolean Indicates whether the task is a sub-project.
    sourceEndpointType string The data source type of the source.
    sinkEndpointType string The data source type of the target.
    transferMapping object The migration objects and their mapping information.
    ├─ mode string The mapping mode of the migration object. Valid values: SPECIFIC (specified object) and WILDCARD (matching rule).
    ├─ databases object [] The database object list. For specific information, see "Parameters in databases/databasesBlack".
    ├─ databasesBlack object [] The matching rule mode: database object blacklist list. For specific information, see "Parameters in databases/databasesBlack".
    ├─ tableAndViewWhiteList array The matching rule mode: wildcard whitelist of tables and views.
    ├─ tableAndViewBlackList array The matching rule mode: wildcard blacklist of tables and views.
    commonTransferConfig object The common migration configuration.
    ├─ tableCategory string The type of the table to be transferred. 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 Indicates whether the disaster recovery and dual-active scenarios are enabled (deprecated in OMS V4.3.1).
    ├─ 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 for delivery), HASH (hash partitioning based on the primary key or the shard column value), and TABLE (hash partitioning based on the database and table name).
    ├─ mqPartition integer The partition position in the current topic when partitionMode is ONE.
    ├─ datahubTopicType string The type of the topic to which data is delivered in the form of tuples. Valid values: TUPLE and BLOB.
    ├─ rocketMqProducerGroup string The name of the producer group. This parameter is effective only when the target is RocketMQ. Default value: OMS.
    ├─ rocketMqMsgTags string The message tags when the target is RocketMQ. Default value: default->default_tag. When the value is default, the suffix _tag is appended by default.
    ├─ rocketMqEnableMsgTrace boolean Specifies whether to enable message tracing when the target is RocketMQ.
    ├─ rocketMqSendMsgTimeout long The timeout period for message delivery when the target is RocketMQ.
    ├─ dataWorksBusinessName string The business system identifier. This parameter identifies the business system source of data for subsequent custom processing. This parameter is supported only when the serialization mode is DataWorks. The length of the value must be 1 to 20 characters.
    ├─ sinkStoreFormat string The storage type of the target table object. Valid values: Default, Row Storage, Column Storage, and Hybrid Row-Column Storage.
    This parameter is effective only when the target OceanBase Database is V4.3.0 or later and the migration type is Schema Migration or Incremental Synchronization > DDL synchronization.
    ├─ sourceStoreFormat string The storage type of the source table object. Valid values: Default, Row Storage, Column Storage, and Hybrid Row-Column 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.
    ├─ interactiveMode boolean Specifies whether to manually advance the task through the interface.
    enableStructTransfer boolean Specifies whether to allow schema migration.
    structTransferConfig object The schema migration configuration.
    ├─ 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 post-processing. Default value: No.
    enableFullTransfer boolean Specifies whether to enable full migration.
    enableFullVerify boolean Specifies whether to enable full verification.
    fullTransferConfig object The full migration configuration.
    ├─ nonePkUkTruncateDstTable boolean Specifies whether to truncate the target table when full migration is performed for a source table without unique indexes.
    ├─ allowDestTableNotEmpty boolean The handling strategy when the target table contains data. Valid values: Ignore and Stop Migration.
    • If you set the value to true, OMS will adopt the ignore strategy for data write when the target table contains data. In other words, when data conflicts with unique keys in the target table, OMS will ignore the corresponding data from the source and retain the data in the target.

      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 specifies to stop migration. 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 ignores this error and continues to migrate data. Proceed with caution.

    ├─ fullTransferSpeedMode string The full migration speed. Valid values: STEADY, NORMAL, FAST, and CUSTOM.
    ├─ fullTransferSpeedConfig string The full migration speed configuration. This parameter is effective only when fullTransferSpeedMode is CUSTOM.
    ├─├─ memory integer Memory limit, in GB.
    ├─├─ readerWorkerNum integer Number of concurrent reads.
    ├─├─ writerWorkerNum integer Number of concurrent writes.
    ├─ fullVerifySpeedMode string The full verification speed. Valid values: STEADY, NORMAL, FAST, and CUSTOM.
    ├─ fullVerifySpeedConfig string The full verification speed configuration. This parameter is effective only when fullVerifySpeedMode is CUSTOM.
    ├─├─ memory integer Memory limit, in GB.
    ├─├─ readerWorkerNum integer Number of concurrent reads.
    ├─├─ writerWorkerNum integer Number of concurrent writes.
    ├─ throttleRps integer The maximum transfer rate allowed for full migration, in records per second. Enter null to indicate no restriction.
    ├─ throttleIOPS integer The maximum transfer traffic allowed for full migration, in bytes per second. Enter null to indicate no restriction.
    enableIncrTransfer boolean Specifies whether to enable incremental synchronization.
    enableIncrVerify boolean Specifies whether to enable incremental verification.
    enableReverseIncrTransfer boolean Specifies whether to enable reverse incremental synchronization.
    incrTransferConfig object The incremental synchronization configuration.
    ├─ startTimestamp string The Incremental synchronization start timestamp. This parameter is supported only when incremental synchronization is enabled but full migration is not enabled.
    ├─ recordTypeWhiteList array The incremental data types to be synchronized when incremental synchronization is enabled.
    ├─ storeLogKeptHour integer The log retention period when incremental logs are pulled by the Store component. The value ranges from 1 to 365.
    ├─ enableSequencingWithinTxn boolean Specifies whether to enable sequence number sequencing within transactions when incremental logs are pulled by the Store component.
    ├─ incrSyncConcurrency integer The number of threads for incremental synchronization. Default value: 64.
    ├─ enableIncrSyncStatistics boolean Specifies whether to enable incremental record (DML and DDL) statistics.
    ├─ incrOnlineDdlConfig array The value of this parameter indicates the name of the online DDL tool used for adaptation. Valid values: GH_OST, PT_OSC, and ALIYUN_DMS, which respectively indicate gh-ost, pt-osc, and Alibaba Cloud DMS.
    • This parameter takes effect on forward incremental synchronization from a MySQL database to a MySQL-compatible tenant of OceanBase Database.
    • This parameter takes effect on reverse incremental synchronization from a MySQL-compatible tenant of OceanBase Database to a MySQL database.
    ├─ incrLogPullSpeedMode string The incremental log pull speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM.
    ├─ incrLogPullSpeedConfig string The incremental log pull resource configuration. This parameter is effective only when incrLogPullSpeedMode is CUSTOM.
    ├─├─ memory integer The incremental log pull memory limit.
    ├─ incrLogSyncSpeedMode string The incremental data write speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM.
    ├─ incrLogSyncSpeedConfig string The incremental data write resource configuration. This parameter is effective only when incrLogSyncSpeedMode is CUSTOM.
    ├─├─ memory integer The incremental log write memory limit.
    ├─├─ writerWorkerNum integer The number of concurrent incremental log writes.
    ├─ throttleRps integer The maximum transfer rate allowed for incremental synchronization, in records per second. Enter null to indicate no restriction.
    ├─ throttleIOPS integer The maximum transfer traffic allowed for incremental synchronization, in bytes per second. Enter null to indicate no restriction.
    ├─ 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 reverse Incremental synchronization start timestamp. This parameter is supported only when incremental synchronization is enabled but full migration is not enabled.
    ├─ recordTypeWhiteList array The incremental data types to be synchronized when reverse incremental synchronization is enabled. Valid values: HEARTBEAT, INSERT, UPDATE, DELETE, BEGIN, COMMIT, ROLLBACK, DDL, and ROW.
    ├─ storeLogKeptHour integer The log retention period when incremental logs are pulled by the Store component in reverse incremental synchronization. The value ranges from 1 to 365.
    ├─ enableSequencingWithinTxn boolean Specifies whether to enable sequence number sequencing within transactions when incremental logs are pulled by the Store component in reverse incremental synchronization.
    ├─ enableIncrSyncStatistics boolean Specifies whether to enable reverse incremental record (DML and DDL) statistics.
    ├─ incrOnlineDdlConfig array The value of this parameter indicates the name of the online DDL tool used for adaptation. Valid values: GH_OST, PT_OSC, and ALIYUN_DMS, which respectively indicate gh-ost, pt-osc, and Alibaba Cloud DMS.
    • This parameter takes effect on forward incremental synchronization from a MySQL database to a MySQL-compatible tenant of OceanBase Database.
    • This parameter takes effect on reverse incremental synchronization from a MySQL-compatible tenant of OceanBase Database to a MySQL database.
    ├─ incrSyncConcurrency integer The number of threads for reverse incremental synchronization. Default value: 64.
    ├─ incrLogPullSpeedMode string The reverse incremental log pull speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM.
    ├─ incrLogPullSpeedConfig string The reverse incremental log pull resource configuration. This parameter is effective only when incrLogPullSpeedMode is CUSTOM.
    ├─├─ memory integer The reverse incremental log pull memory limit.
    ├─ incrLogSyncSpeedMode string The reverse incremental data write speed. Valid values: STEADY (low), NORMAL (medium), FAST (high), and CUSTOM.
    ├─ incrLogSyncSpeedConfig string The reverse incremental data write resource configuration. This parameter is effective only when incrLogSyncSpeedMode is CUSTOM.
    ├─├─ memory integer The reverse incremental log write memory limit.
    ├─├─ writerWorkerNum integer The number of concurrent reverse incremental log writes.
    ├─ throttleRps integer The maximum transfer rate allowed for reverse incremental synchronization, in records per second. Enter null to indicate no restriction.
    ├─ throttleIOPS integer The maximum transfer traffic allowed for reverse incremental synchronization, in bytes per second. Enter null to indicate no restriction.
    ├─ supportDDLTypes array The supported DDL types.
    • CREATE_TABLE
    • ALTER_TABLE
    • DROP_TABLE
    • RENAME_TABLE
    • TRUNCATE_TABLE
    • CREATE_INDEX
    • DROP_INDEX
    sourceConnectInfo object The connection information of the source.
    ├─ id string Connection information ID.
    ├─ endpointName string Endpoint name.
    ├─ endpointId string Endpoint ID.
    ├─ endpointSide string Endpoint type. Valid values: source and dest (target).
    ├─ dbEngine string Database engine of the endpoint.
    ├─ connectionInfo string Endpoint connection information.
    ├─ username string Username for connection.
    ├─ version string Database version.
    ├─ timezone string Database time zone.
    ├─ charset string Character set.
    ├─ nlsLengthSemantics string nlsLengthSemantics attribute. This parameter is supported only for Oracle and OceanBase Database Oracle compatible mode data sources.
    ├─ operatingSystem string Operating system. This parameter is not supported for OceanBase Database.
    ├─ region string Region.
    ├─ ocpName string OCP name.
    ├─ connExtraAttributes Object Connection extra attributes. For specific return fields, see the content in the Appendix section.
    ├─ owner string Owner.
    ├─ host string IP address.
    ├─ port integer Port number.
    sinkConnectInfo object The connection information of the target.
    ├─ id string Connection information ID.
    ├─ endpointName string Endpoint name.
    ├─ endpointId string Endpoint ID.
    ├─ endpointSide string Endpoint type. Valid values: source and dest (target).
    ├─ dbEngine string Database engine of the endpoint.
    ├─ connectionInfo string Endpoint connection information.
    ├─ username string Username for connection.
    ├─ version string Database version.
    ├─ timezone string Database time zone.
    ├─ charset string Character set.
    ├─ nlsLengthSemantics string nlsLengthSemantics attribute. This parameter is supported only for Oracle and OceanBase Database Oracle compatible mode data sources.
    ├─ operatingSystem string Operating system. This parameter is not supported for OceanBase Database.
    ├─ region string Region.
    ├─ ocpName string OCP name.
    ├─ connExtraAttributes Object Connection extra attributes. For specific return fields, see the content in the Appendix section.
    ├─ owner string Owner.
    ├─ host string IP address.
    ├─ port integer Port number.
    steps object [] The step list.
    ├─ order integer The step execution order.
    ├─ name string Step name.
    ├─ description string Step description.
    ├─ status string Step status.
    ├─ extraInfo object Supplemental information. For specific information, see "Parameters in extraInfo".
    ├─ startTime string Start time, in the format of UTC + 0.
    ├─ finishTime string End time, in the format of UTC + 0.
    ├─ progress integer Step progress.
    ├─ stepInfo object Details of each step. For specific information, see "Parameters in stepInfo".
    extraInfo object Supplemental information such as error information.
    ├─ runningStep string The step in the running state.
    ├─ runningProgress integer The progress of the step in the running state.
    ├─ monitoringIncr boolean Specifies whether to enable incremental monitoring.
    ├─ subtopics string The subtopics associated with the task when it is related to the Store component.
    ├─ reverseSubtopics string The subtopics associated with the task when it is related to the reverse Store component.
    ├─ logServiceStartCheckpoint integer The start checkpoint.
    ├─ sourceStoreKeptHour integer The log retention period.
    ├─ syncDelay integer The incremental synchronization delay.
    ├─ syncDelaySampleTimestamp integer The incremental synchronization delay sampling timestamp in seconds.
    ├─ accessObSource boolean Specifies whether the source OceanBase database can be directly connected.
    ├─ overwriteConfig boolean Specifies whether to allow complete overwrite of updated configurations.
    ├─ ignoreUnsupportDdl boolean Specifies whether to ignore unsupported DDL statements.
    ├─ subDbs map The table configurations for different downstream consumers. This parameter is used for configuration merging when the task is reused for data synchronization.
    ├─ subConds map The configuration object list.
    ├─ subIds map The list of IDs of the configuration objects.
    ├─ maxConnectorCount integer The maximum number of Connectors, -1 indicating no limit.
    ├─ storeIncr boolean Specifies whether to save incremental data.
    ├─ incrSyncTimestamp integer The current incremental synchronization timestamp in seconds.
    alarmStats object Alert statistics.
    ├─ target string The target of the alert.
    ├─ alarming boolean Specifies whether an alert is being issued.
    ├─ recentlyTriggerCount integer The total number of alert messages.
    ├─ ruleToRecentlyTriggerCount map The number of alert messages triggered by each rule.
    ├─ alarmContent string The content of the latest alert message.
  • 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 configurations of table objects to be transferred in the current database. When mode is WILDCARD, this parameter indicates the configurations of specific blacklists or whitelists, which are shared by tables and views.
    ├─ mappedName string The mapped name of the table.
    ├─ name string The name of the table.
    ├─ id string The ID of the table.
    ├─ whereClause string The WHERE clause in the standard SQL statement for configuring row filtering.
    ├─ filterColumns array The filtered column set.
    ├─ shardColumns array The shard column set.
    ├─ columns object [] The specific column information. For more information, see "Parameters in columns".
    views array The configurations of view objects to be transferred in the current database.
    ├─ mappedName string The mapped name of the view.
    ├─ name string The name of the view.
    ├─ id string The ID of the view.
    ├─ whereClause string The WHERE clause in the standard SQL statement for configuring row filtering.
    ├─ filterColumns array The filtered column set.
    ├─ shardColumns array The shard column set.
    ├─ columns object [] The list of columns to be transferred. For more information, see "Parameters in columns".
    specificTables array The configurations of specific table objects. When mode is WILDCARD, this parameter indicates the renaming and row filtering configurations of specific table objects.
    ├─ mappedName string The mapped name of the table.
    ├─ name string The name of the table.
    ├─ id string The ID of the table.
    ├─ whereClause string The WHERE clause in the standard SQL statement for configuring row filtering.
    ├─ filterColumns array The filtered column set.
    ├─ shardColumns array The shard column set.
    ├─ columns object [] The list of columns to be transferred. For more information, see "Parameters in columns".
    specificViews array The configurations of specific view objects. When mode is WILDCARD, this parameter indicates the renaming configurations of specific view objects.
    ├─ mappedName string The mapped name of the view.
    ├─ name string The name of the view.
    ├─ id string The ID of the view.
    ├─ whereClause string The WHERE clause in the standard SQL statement for configuring row filtering.
    ├─ filterColumns array The filtered column set.
    ├─ shardColumns array The shard column set.
    ├─ columns object [] The list of columns to be transferred. For more information, see "Parameters in columns".
  • Parameters in columns

    Parameter Type Description
    columnName string The name of the column.
    mappedName string The mapped name of the column.
    position integer The position of the column.
    columnType string The type of the column.
    recordFieldType string The derived type of the column type.
    rawColumnType string The original string of the column type in the database record.
    columnKey string The type of the index.
    nullable boolean Specifies whether the column can be empty.
    defaultValue string The default value of the column.
    dataLength integer The length of the column.
    dataPrecision integer The precision of the column.
    dataScale integer The decimal point.
    encoding string The character encoding of the column.
    columnComment string The comment on the column.
    isGenerateField boolean Specifies whether the column is a hidden column.
  • Parameters in extraInfo

    Parameter Type Description
    errorDetails array Error details.
    errorCode string Error code.
    errorMsg string Error message.
    errorParam object Parameters related to the error.
    failedTime string Error time.
  • Parameters in stepInfo

    The stepInfo parameter returns different fields for different steps.

    • TRANSFER_APP_SWITCH (forward switchover)

      Parameter Type Description
      checkpointSampleTimestamp long The timestamp when the checkpoint is sampled. The value is in Unix timestamp format and the unit is seconds.
    • INCR_TRANSFER (incremental synchronization)

      Parameter Type Description
      incrTimestampCheckpoint long The timestamp when the checkpoint is sampled. The value is in Unix timestamp format and the unit is seconds.
      checkpointSampleTimestamp long The timestamp when the checkpoint is sampled. The value is in Unix timestamp format and the unit is seconds.
      enableIncrStatistics boolean Specifies whether to enable DML/DDL statistics.
    • FULL_VERIFIER (full verification) and FULL_TRANSFER (full migration)

      Parameter Type Description
      processedRecords long The number of migrated rows.
      capacity long The estimated total number of rows.
      srcRps long The source RPS, in records per second.
      srcRt string The source RT, in milliseconds per row.
      srcIops long The source IOPS, in bytes per second.
      dstRps long The target RPS, in records per second.
      dstRt long The target RT, in milliseconds per row.
      dstIops long The target IOPS, in bytes per second.
      srcRpsRef long The reference source RPS.
      dstRpsRef long The reference target RPS.
      dstRtRef long The reference target RT.

Examples

Request example

{
    "id":"np_4wh****"
}

Response example

{
    "success":true,
    "errorDetail":null,
    "code":null,
    "message":null,
    "advice":null,
    "requestId":"a7b57****",
    "pageNumber":null,
    "pageSize":null,
    "totalCount":null,
    "cost":"27 ms",
    "data":[
        {
            "id":"np_4w****",
            "type":"MIGRATION",
            "name":"oms41_mig***",
            "labels":null,
            "owner":"oms_api_t***",
            "importance":"MEDIUM",
            "status":"RUNNING",
            "gmtCreate":"2023-07-13T03:59:15",
            "gmtModified":"2023-07-13T10:12:44",
            "gmtStart":"2023-07-13T06:47:35",
            "gmtFinish":null,
            "destConnId":null,
            "isMerging":false,
            "isModifying":false,
            "isSubProject":false,
            "sourceEndpointType":"DB2_LUW",
            "sinkEndpointType":"OB_MYSQL",
            "transferMapping":{
                "mode":"SPECIFIC",
                "databases":[
                    {
                        "mappedName":"tion12***20obmysql2",
                        "name":"GRATION129****",
                        "id":null,
                        "tables":[
                            {
                                "mappedName":"TEST_MA***",
                                "name":"TEST_M***",
                                "id":null,
                                "whereClause":null,
                                "filterColumns":null,
                                "shardColumns":null,
                                "columns":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,
                "interactiveMode":true
            },
            "enableStructTransfer":true,
            "structTransferConfig":{
                "byteCharConvertStrategy":"DO_NOTHING_IF_BYTE_USED",
                "deferIndexCreation":true
            },
            "enableFullTransfer":true,
            "enableFullVerify":true,
            "fullTransferConfig":{
                "nonePkUkTruncateDstTable":null,
                "allowDestTableNotEmpty":true,
                "fullTransferSpeedMode":"CUSTOM",
                "fullTransferSpeedConfig":{
                    "memory":4,
                    "readerWorkerNum":1,
                    "writerWorkerNum":2
                    },
                "fullVerifySpeedMode":"CUSTOM",
                "fullVerifySpeedConfig":{
                    "memory":4,
                    "readerWorkerNum":1,
                    "writerWorkerNum":2
                    },
                "throttleRps": 1000,
                "throttleIOPS": 1000
                    },
            "enableIncrTransfer":true,
            "enableIncrVerify":false,
            "enableReverseIncrTransfer":true,
            "incrTransferConfig":{
                "startTimestamp":1689201369,
                "recordTypeWhiteList":[
                    "INSERT",
                    "DELETE",
                    "UPDATE"
                ],
                "storeLogKeptHour":120,
                "enableSequencingWithinTxn":null,
                "incrSyncConcurrency":null,
                "enableIncrSyncStatistics":null,
                "incrLogPullSpeedMode":"NORMAL",
                "incrLogPullSpeedConfig":{
                    "memory":4
                    },
                "incrLogSyncSpeedMode":"CUSTOM",
                "incrLogSyncSpeedConfig":{
                    "memory":4,
                    "writerWorkerNum":2
                    },
                "throttleRps": 1000,
                "throttleIOPS": 1000,
                "incrOnlineDdlConfig":[
                  "GH_OST",
                  "PT_OSC",
                  "ALIYUN_DMS"
                  ]
            },
            "sourceConnectInfo":{
                "id":"c_4w1qs****",
                "endpointName":"GRATION12948*****",
                "endpointId":"e_4w1q****",
                "endpointSide":null,
                "dbEngine":"DB2_LUW_PUBLIC",
                "connectionInfo":null,
                "username":"db2i***",
                "version":"11.5.0.0",
                "timezone":"+08:00",
                "charset":"UTF8",
                "nlsLengthSemantics":null,
                "operatingSystem":"Linux",
                "region":"cn-anhui",
                "ocpName":"",
                "connExtraAttributes":null,
                "owner":"oms_api_t***",
                "host":"xxx.xxx.xxx.1",
                "port":"2883"
            },
            "sinkConnectInfo":{
                "id":"c_4w1qs***",
                "endpointName":"tion1294820obmysq****",
                "endpointId":"e_4w1qr2***",
                "endpointSide":null,
                "dbEngine":"OB_MYSQL_PUBLIC",
                "connectionInfo":null,
                "username":"oms2027obmysql@oms_***",
                "version":"2.2.77",
                "timezone":"+08:00",
                "charset":"utf8mb4",
                "nlsLengthSemantics":null,
                "operatingSystem":null,
                "region":"cn-anhui",
                "ocpName":"107",
                "connExtraAttributes":null,
                "owner":"oms_api_t***",
                "host":"xxx.xxx.xxx.4",
                "port":"2883"
            },
            "steps":[
                {
                    "order":1,
                    "name":"TRANSFER_PRECHECK",
                    "description":"Precheck",
                    "status":"FINISHED",
                    "extraInfo":{
                        "errorDetails":null,
                        "errorCode":null,
                        "errorMsg":null,
                        "errorParam":null,
                        "failedTime":null
                    },
                    "startTime":"2023-07-12T22:33:42",
                    "finishTime":"2023-07-12T22:33:48",
                    "progress":100,
                    "stepInfo":null
                },
                {
                    "order":2,
                    "name":"STRUCT_TRANSFER",
                    "description":"schema migration",
                    "status":"FINISHED",
                    "extraInfo":{
                        "errorDetails":null,
                        "errorCode":null,
                        "errorMsg":null,
                        "errorParam":null,
                        "failedTime":"2023-07-12T22:35:48.881"
                    },
                    "startTime":"2023-07-12T22:35:24",
                    "finishTime":"2023-07-12T22:36:04",
                    "progress":100,
                    "stepInfo":null
                },
                {
                    "order":6,
                    "name":"INCR_TRANSFER",
                    "description":"Incremental synchronization",
                    "status":"MONITORING",
                    "extraInfo":{
                        "errorDetails":null,
                        "errorCode":null,
                        "errorMsg":null,
                        "errorParam":null,
                        "failedTime":null
                    },
                    "startTime":"2023-07-12T22:41:20",
                    "finishTime":"2023-07-12T22:46:57",
                    "progress":99,
                    "stepInfo":{
                        "incrTimestampCheckpoint":1689213946,
                        "checkpointSampleTimestamp":1689214358,
                        "enableIncrStatistics":true
                    }
                }
            ],
            "extraInfo":null,
            "alarmStats":{
                "target":"np_4w1q****",
                "alarming":false,
                "recentlyTriggerCount":null,
                "ruleToRecentlyTriggerCount":null,
                "alarmContent":null
            }
        }
    ]
}

Appendix E

Kafka

{
    "connExtraAttributes":{
        "endpoint":"xxx.xxx.xxx.1:2883",
        "username":null,
        "enableSSL":null,
        "enableSASL":null,
        "saslMechanism":null,
        "disableIdentificationAlgorithm":false
    }
}
Parameter Type Description
endpoint string The endpoint of the service.
username string The username. This parameter is required when you set the authentication type to PLAIN, SCRAM-SHA-256, or SCRAM-SHA-512.
enableSSL boolean Specifies whether to enable SSL authentication. If SSL authentication is enabled, you must upload a trusted certificate.
enableSASL boolean Specifies whether to enable SASL authentication.
saslMechanism KafkaSaslMechanisnEnum The encryption method. Valid values: PLAIN, SCRAM-SHA-256, SCRAM-SHA-512, and KERBEROS.
disableIdentificationAlgorithm boolean Specifies whether to enable hostname verification in SSL authentication.

If an Oracle data source serves as the source or the target and you obtain incremental data from Kafka, the following parameters are returned in the connExtraAttributes parameter.

Parameter Type Description
kafkaId string The ID of the bound Kafka data source that is required after you choose to obtain incremental data from Kafka.
kafkaTopic string The topic of the bound Kafka data source.
cdcDataFormat string The incremental message format. Valid values: ogg_json and ogg_json_row.
kafkaName string The name of the bound Kafka data source.
  • Oracle data source as the source

    {
    "sourceConnectInfo": {
        "connExtraAttributes": {
            "kafkaId": "e_6m*****",
            "kafkaTopic": "test",
            "cdcDataFormat": "ogg_json",
            "kafkaName": "kafka-test"
            }
        }
    }
    
  • Oracle data source as the target

    {
    "sinkConnectInfo": {
        "connExtraAttributes": {
            "kafkaId": "e_6m*****",
            "kafkaTopic": "test",
            "cdcDataFormat": "ogg_json",
            "kafkaName": "kafka-test"
            }
        }
    }
    

DataHub

{
    "connExtraAttributes":{
        "endpoint":"xxx.xxx.xxx.1:2883",
        "project":"detx***"
    }
}
Parameter Type Description
endpoint string The endpoint of the service.
project string The task name.

RocketMQ

{
    "connExtraAttributes":{
        "endpoint":"xxx.xxx.xxx.1:2883",
        "endpointType":null,
        "version":null
    }
}
Parameter Type Description
endpoint string The endpoint of the service.
endpointType CloudRocketMQEndpoint.Type The type of the endpoint.
version CloudRocketMQInst.Version The version of RocketMQ.

OceanBase

{
    "connExtraAttributes":{
        "cluster":"xgez***",
        "tenant":"gexr**",
        "isLogicSource":false,
        "useLogProxy":true,
        "drcUser":"tes***",
        "configUrl":"http://xxx.xxx.xxx.1:2883/service****",
        "logProxyIp":"xxx.xxx.xxx.2",
        "logProxyPort":2883,
        "noUserAuth":false
    }
}
Parameter Type Description
cluster string The name of the cluster.
tenant string The name of the tenant.
isLogicSource boolean Specifies whether the data source is a logical data source.
useLogProxy boolean Specifies whether to use LogProxy.
drcUser string The configuration of drc_user.
configUrl string The URL for obtaining the real IP address of the server where OceanBase Database is located.
logProxyIp string The IP address of LogProxy.
logProxyPort integer The port number of LogProxy.
noUserAuth boolean For the interface of DataWorks, the data source is automatically generated by OMS. If no username and password are provided, the OceanBase Database of the user cannot be connected.

TiDB

{
    "connExtraAttributes":{
        "kafkaId":"e_edz****",
        "kafkaTopic":"test**",
        "kafkaName":"denz***"
    }
}
Parameter Type Description
kafkaId string The ID of the bound Kafka data source.
kafkaTopic string The name of the bound Kafka topic.
kafkaName string The name of the bound Kafka data source.

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What is on this page
Purpose
Call description
Limitations
Request path
Request parameters
Response parameters
Examples
Request example
Response example
Appendix E
Kafka
DataHub
RocketMQ
OceanBase
TiDB