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Difference between revisions of "MagnetoDB/specs/bulkload-api"

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Status of each job can be obtained via 'Get..' request.
 
Status of each job can be obtained via 'Get..' request.
 
Depending on implementation, insert operation result may be provided per item or per whole data chunk.
 
Depending on implementation, insert operation result may be provided per item or per whole data chunk.
 
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=== Operations ===
 
=== Operations ===

Revision as of 09:47, 14 May 2014

[Draft] MagnetoDB Bulk Load workflow and API

Workflow

This page describes process of loading large amounts of data into MagnetoDB.

Before uploading the data one should first make sure that destination table exists and then initiate new job via 'Create new..' command. The latter will rerurn an Id of created job. This Id will be used for all operations with the job.

Once the job is created one could upload one or more chunks of data into the job via 'Upload..' operation. Amount of data per chunk is not limited by any particular number but may vary depending on hardware capabilities, required operation control granularity etc. Depending on implementation, data may start being inserted immediately upon arrival (thru streaming HTTP request) or after data chunk was completely uploaded. This fact may also imply on data chunk size used.

One may get a list of all jobs per table via 'Cet..' request.

Status of each job can be obtained via 'Get..' request. Depending on implementation, insert operation result may be provided per item or per whole data chunk.

Operations

HTTP method URL pattern Operation description
POST v1/{project_id}/data/tables/{table_name}/bulk_load Creates a new bulk load job
POST v1/{project_id}/data/tables/{table_name}/bulk_load/{job_id} Uploads chunk of data
GET v1/{project_id}/data/tables/{table_name}/bulk_load/{job_id}/status Gets status of the bulk load job
GET v1/{project_id}/data/tables/{table_name}/bulk_load/jobs Gets list of bulk load job ids
DELETE v1/{project_id}/data/tables/{table_name}/bulk_load/{job_id} Stops the bulk load job

Headers

  • User-Agent
  • Content-Type: application/json, text/plain
  • Accept: application/json
  • X-Auth-Token keystone auth token

Common Errors

This section lists the common errors that all actions return. Any action-specific errors will be listed in the topic for the action.

TBD

Operation details


Create new bulk load job

The CreateTable operation adds a new table. Table names must be unique within each tenant.

URL

POST v1/{project_id}/data/tables/{table_name}/bulk_load

Request Syntax
{
    "attribute_definitions": [
        {
            "attribute_name": "string",
            "attribute_type": "string"
        }
    ]
}
Request Parameters
attribute_definitions
An array of attributes that describe the schema for the upcoming data.
Type: array of AttributeDefinition objects
Required: Yes
Response Syntax
{
   "job_id": "string"
}
Response Elements
job_id
Id of the new created job
Type: string
Errors

TBD


Upload data chunk

URL
Request Syntax

TODO

Request Parameters

TODO

Response Syntax

TODO

Response Elements

TODO

Errors

TODO


Get bulk load job status

Returns information about the table.

URL

GET v1/{project_id}/data/tables/{table_name}

Request Syntax

This operation does not require a request body

Response Syntax

Response Elements
Errors

TBW


Get bulk load jobs list

The DeleteTable operation deletes a table and all of its items.

URL
Request Syntax
Response Syntax

Response Elements
Errors

TBW


Delete bulk load job

URL
Request Syntax

This operation does not require a request body

Request Parameters

Parameters should be provided via GET query string.

Response Syntax
Response Elements
Errors

TBW