Query Apache IoTDB and write results as Records
IoT, Timeseries
In the list below, the names of required properties appear in bold. Any other properties (not in bold) are considered optional. The table also indicates any default values, and whether a property supports the NiFi Expression Language.
| Display Name | API Name | Default Value | Allowable Values | Description |
|---|---|---|---|---|
| Host | Host | IoTDB server host address | ||
| Port | Port | 6667 | IoTDB server port number | |
| Username | Username | Username for access to IoTDB | ||
| Password | Password | Password for access to IoTDB Sensitive Property: true | ||
| Query | Query | IoTDB query to be executed Supports Expression Language: true (will be evaluated using flow file attributes and Environment variables) | ||
| Fetch Size | Fetch Size | 10000 | Maximum number of results to return in a single chunk. Configuring 1 or more enables result set chunking Supports Expression Language: true (will be evaluated using flow file attributes and Environment variables) | |
| Record Writer | Record Writer | Controller Service API: RecordSetWriterFactory Implementations: XMLRecordSetWriter FreeFormTextRecordSetWriter AvroRecordSetWriter ScriptedRecordSetWriter JsonRecordSetWriter ParquetRecordSetWriter RecordSetWriterLookup CSVRecordSetWriter | Service for writing IoTDB query results as records |
| Name | Description |
|---|---|
| success | Processing succeeded |
| failure | Processing failed |
| Name | Description |
|---|---|
| iotdb.error.message | Error message written on query failures |
| mime.type | Content Type based on configured Record Set Writer |