API
REST API for data migration and synchronization in Hegira 4Clouds.
The following resources are applicable:
/api/switchover
Mount Point: /rest/api/switchover
POST
Instructs the components (SRC and TWC) to perform a complete OFFLINE data switch over from the source to the destination databases. This type of data migration is typically not recoverable, i.e., in case of a crash of a component the data migration can be restarted from scratch.
Parameters
| name | description | type | default |
|---|---|---|---|
| source | The source database identifier (e.g., DATASTORE, TABLES). | query | |
| destination | The destination database identifier (e.g., DATASTORE, TABLES). | query | |
| threads | The number of TWT (i.e., the number of parallel threads writing towards the target database). | query |
Response Body
| element: | status |
| media types: | application/xml application/json |
A Status object stating whether the command has been properly executed.
/api/switchoverPartitioned
Mount Point: /rest/api/switchoverPartitioned
POST
Instructs the components (SRC and TWC) to perform a complete ONLINE data switch over from the source to the destination databases. This type of data migration should be executed in case one wants also to take advantage of data synchronization. This type of data migration is recoverable, i.e., in case of a crash of a component the data migration can be restarted from scratch.
Parameters
| name | description | type | default |
|---|---|---|---|
| source | The source database identifier (e.g., DATASTORE, TABLES). | query | |
| destination | The destination database identifier (e.g., DATASTORE, TABLES). | query | |
| threads | The number of TWT (i.e., the number of parallel threads writing towards the target database). | query | |
| vdpSize | The exponent for the base number 10 which, together, define the VDP size (e.g., 2 means that each VDP will contain 100 entities). | query |
Response Body
| element: | status |
| media types: | application/xml application/json |
A Status object stating whether the command has been properly executed.