Local Time Series Storage Engine¶
Purpose¶
The Local Time Series Storage Engine provides local storage and retrieval of time series data.
State¶
Messages received¶
GetDataTimeSeriesDBRequest¶
Get the queried time series data and return it.
Reception:
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that finds the requested time series data in the DB.
Triggers
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that finds the requested time series data in the DB.
Time Series DB Data: TimeSeriesDBDataV1
The requested time series data.
RecordDataTimeSeriesDBRequest¶
Add time series data to the DB.
Reception:
RecordDataTimeSeriesDBRequestV1
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that expresses the addition of the time series data into the DB.
Triggers
RecordDataTimeSeriesDBResponseV1
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that expresses the recording of the time series data into the DB.
Success Operation: SuccessOperationV1
The success of the operation, indicating that the KV-pair was stored successfully or not.
DeleteDataTimeSeriesDBRequest¶
Delete time series data from the DB.
Reception:
DeleteDataTimeSeriesDBRequestV1
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that expresses the deletion of the time series data from the DB.
Triggers
DeleteDataTimeSeriesDBResponseV1
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that expresses the deletion of the time series data from the DB.
Success Operation: SuccessOperationV1
The success of the operation, indicating that the KV-pair was deleted successfully or not.
Notifications sent¶
DataChangedTimeSeriesDB¶
When the value in the time series DB changes, engines interested in this information get notified.
Records with fields:
Time Series DB Query: TimeSeriesDBQueryV1
The query that expresses the desire change of the time series DB.
Time Series DB Data: TimeSeriesDBDataV1
The changed time series data.
Epoch Timestamp: EpochTimestampV1
The wall clock time of the moment the data was changed.
Message Flow¶
sequenceDiagram
%% --8<-- [start:sequence]
Any Local Engine ->>+ Local Time Series Storage Engine: GetDataTimeSeriesDBRequest
Local Time Series Storage Engine -->>- Any Local Engine: GetDataTimeSeriesDBResponse
Any Local Engine ->>+ Local Time Series Storage Engine: RecordDataTimeSeriesDBRequest
Local Time Series Storage Engine -->>- Any Local Engine: RecordDataTimeSeriesDBResponse
Any Local Engine ->>+ Local Time Series Storage Engine: DeleteDataTimeSeriesDBRequest
Local Time Series Storage Engine -->>- Any Local Engine: DeleteDataTimeSeriesDBResponse
%% --8<-- [end:sequence]