选择您的 Cookie 首选项

我们使用必要 Cookie 和类似工具提供我们的网站和服务。我们使用性能 Cookie 收集匿名统计数据,以便我们可以了解客户如何使用我们的网站并进行改进。必要 Cookie 无法停用,但您可以单击“自定义”或“拒绝”来拒绝性能 Cookie。

如果您同意,AWS 和经批准的第三方还将使用 Cookie 提供有用的网站功能、记住您的首选项并显示相关内容,包括相关广告。要接受或拒绝所有非必要 Cookie,请单击“接受”或“拒绝”。要做出更详细的选择,请单击“自定义”。

StartReplicationTask - AWS Database Migration Service
此页面尚未翻译为您的语言。 请求翻译

StartReplicationTask

Starts the replication task.

For more information about AWS DMS tasks, see Working with Migration Tasks in the AWS Database Migration Service User Guide.

Request Syntax

{ "CdcStartPosition": "string", "CdcStartTime": number, "CdcStopPosition": "string", "ReplicationTaskArn": "string", "StartReplicationTaskType": "string" }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

CdcStartPosition

Indicates when you want a change data capture (CDC) operation to start. Use either CdcStartPosition or CdcStartTime to specify when you want a CDC operation to start. Specifying both values results in an error.

The value can be in date, checkpoint, or LSN/SCN format.

Date Example: --cdc-start-position “2018-03-08T12:12:12”

Checkpoint Example: --cdc-start-position "checkpoint:V1#27#mysql-bin-changelog.157832:1975:-1:2002:677883278264080:mysql-bin-changelog.157832:1876#0#0#*#0#93"

LSN Example: --cdc-start-position “mysql-bin-changelog.000024:373”

Note

When you use this task setting with a source PostgreSQL database, a logical replication slot should already be created and associated with the source endpoint. You can verify this by setting the slotName extra connection attribute to the name of this logical replication slot. For more information, see Extra Connection Attributes When Using PostgreSQL as a Source for AWS DMS.

Type: String

Required: No

CdcStartTime

Indicates the start time for a change data capture (CDC) operation. Use either CdcStartTime or CdcStartPosition to specify when you want a CDC operation to start. Specifying both values results in an error.

Timestamp Example: --cdc-start-time “2018-03-08T12:12:12”

Type: Timestamp

Required: No

CdcStopPosition

Indicates when you want a change data capture (CDC) operation to stop. The value can be either server time or commit time.

Server time example: --cdc-stop-position “server_time:2018-02-09T12:12:12”

Commit time example: --cdc-stop-position “commit_time:2018-02-09T12:12:12“

Type: String

Required: No

ReplicationTaskArn

The Amazon Resource Name (ARN) of the replication task to be started.

Type: String

Required: Yes

StartReplicationTaskType

The type of replication task to start.

When the migration type is full-load or full-load-and-cdc, the only valid value for the first run of the task is start-replication. This option will start the migration.

You can also use ReloadTables to reload specific tables that failed during migration instead of restarting the task.

The resume-processing option isn't applicable for a full-load task, because you can't resume partially loaded tables during the full load phase.

For a full-load-and-cdc task, AWS DMS migrates table data, and then applies data changes that occur on the source. To load all the tables again, and start capturing source changes, use reload-target. Otherwise use resume-processing, to replicate the changes from the last stop position.

Type: String

Valid Values: start-replication | resume-processing | reload-target

Required: Yes

Response Syntax

{ "ReplicationTask": { "CdcStartPosition": "string", "CdcStopPosition": "string", "LastFailureMessage": "string", "MigrationType": "string", "RecoveryCheckpoint": "string", "ReplicationInstanceArn": "string", "ReplicationTaskArn": "string", "ReplicationTaskCreationDate": number, "ReplicationTaskIdentifier": "string", "ReplicationTaskSettings": "string", "ReplicationTaskStartDate": number, "ReplicationTaskStats": { "ElapsedTimeMillis": number, "FreshStartDate": number, "FullLoadFinishDate": number, "FullLoadProgressPercent": number, "FullLoadStartDate": number, "StartDate": number, "StopDate": number, "TablesErrored": number, "TablesLoaded": number, "TablesLoading": number, "TablesQueued": number }, "SourceEndpointArn": "string", "Status": "string", "StopReason": "string", "TableMappings": "string", "TargetEndpointArn": "string", "TargetReplicationInstanceArn": "string", "TaskData": "string" } }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

ReplicationTask

The replication task started.

Type: ReplicationTask object

Errors

For information about the errors that are common to all actions, see Common Errors.

AccessDeniedFault

AWS DMS was denied access to the endpoint. Check that the role is correctly configured.

HTTP Status Code: 400

InvalidResourceStateFault

The resource is in a state that prevents it from being used for database migration.

HTTP Status Code: 400

ResourceNotFoundFault

The resource could not be found.

HTTP Status Code: 400

Examples

Example

This example illustrates one usage of StartReplicationTask.

Sample Request

POST / HTTP/1.1 Host: dms.<region>.<domain> x-amz-Date: <Date> Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=contenttype;date;host;user- agent;x-amz-date;x-amz-target;x-amzn- requestid,Signature=<Signature> User-Agent: <UserAgentString> Content-Type: application/x-amz-json-1.1 Content-Length: <PayloadSizeBytes> Connection: Keep-Alive X-Amz-Target: AmazonDMSv20160101.StartReplicationTask { "ReplicationTaskArn":"arn:aws:dms:us-east- 1:123456789012:task:RALPZGYI3IUSJCBKKIRBEURKDY", "StartReplicationTaskType":"reload-target", "CdcStartTime":null }

Sample Response

HTTP/1.1 200 OK x-amzn-RequestId: <RequestId> Content-Type: application/x-amz-json-1.1 Content-Length: <PayloadSizeBytes> Date: <Date> { "ReplicationTask":{ "SourceEndpointArn":"arn:aws:dms:us-east- 1:123456789012:endpoint:RZZK4EZW5UANC7Y3P4E776WHBE", "ReplicationTaskIdentifier":"aks145", "ReplicationInstanceArn":"arn:aws:dms:us-east- 1:123456789012:rep:6USOU366XFJUWATDJGBCJS3VIQ", "TableMappings":"{ \n\t\"TableMappings\": [ { \n\t\t\"Type\": \"Include\",\n\t\t \"SourceSchema\": \"testDB\",\n\t\t \"SourceTable\": \"%\" \n\t}, { \n\t\t\"Type\": \"Include\",\n\t\t \"SourceSchema\": \"testDB\",\n\t\t \"SourceTable\": \"%\" \n\t} ]\n}", "ReplicationTaskStartDate":1457658794.056, "Status":"starting", "ReplicationTaskArn":"arn:aws:dms:us-east- 1:123456789012:task:RALPZGYI3IUSJCBKKIRBEURKDY", "ReplicationTaskCreationDate":1449185680.107, "MigrationType":"full-load", "TargetEndpointArn":"arn:aws:dms:us-east- 1:123456789012:endpoint:GVBUJQXJZASXWHTWCLN2WNT57E", "ReplicationTaskSettings":"{\"TargetMetadata\":{\"TargetSchema\":\"\",\"SupportLobs\":true,\"FullLobMod e\":true,\"LobChunkSize\":64,\"LimitedSizeLobMode\":false,\"LobMaxSize\":0},\ " FullLoadSettings\":{ \"FullLoadEnabled\":true, \" TargetTablePrepMode\":\"DO_NOTHING\", \"CreatePkAfterFullLoad\":false, \"StopTaskCachedChangesApplied\":false, \"StopTaskCachedChangesNotApplied\":false, \"Re sumeEnabled\":false, \"ResumeMinTableSize\":100000, \"ResumeOnlyClusteredPKTabl es\":true, \"MaxFullLoadSubTasks\":8, \"TransactionConsistencyTimeout\":600, \"C ommitRate\":10000 } } " } }

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

隐私网站条款Cookie 首选项
© 2025, Amazon Web Services, Inc. 或其附属公司。保留所有权利。