stream_read_text
Read Text Stream
Description
Reads a text stream as a Spark dataframe stream.
Usage
stream_read_text(sc, path, name = NULL, options = list(), ...)Arguments
| Argument | Description |
|---|---|
| sc | A spark_connection. |
| path | The path to the file. Needs to be accessible from the cluster. |
Supports the “hdfs://”, “s3a://” and “file://” protocols. name | The name to assign to the newly generated stream. options | A list of strings with additional options. … | Optional arguments; currently unused.
Examples
sc <- spark_connect(master = "local")
dir.create("text-in")
writeLines("A text entry", "text-in/text.txt")
text_path <- file.path("file://", getwd(), "text-in")
stream <- stream_read_text(sc, text_path) %>% stream_write_text("text-out")
stream_stop(stream)See Also
Other Spark stream serialization: stream_read_csv(), stream_read_delta(), stream_read_json(), stream_read_kafka(), stream_read_orc(), stream_read_parquet(), stream_read_socket(), stream_write_console(), stream_write_csv(), stream_write_delta(), stream_write_json(), stream_write_kafka(), stream_write_memory(), stream_write_orc(), stream_write_parquet(), stream_write_text()