Read Kafka Stream
Reads a Kafka stream as a Spark dataframe stream.
stream_read_kafka(sc, name = NULL, options = list(), ...)
sc |
A |
name |
The name to assign to the newly generated stream. |
options |
A list of strings with additional options. |
... |
Optional arguments; currently unused. |
Please note that Kafka requires installing the appropriate
package by setting the packages parameter to "kafka" in spark_connect()
Other Spark stream serialization:
stream_read_csv(),
stream_read_delta(),
stream_read_json(),
stream_read_orc(),
stream_read_parquet(),
stream_read_socket(),
stream_read_text(),
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()
## Not run: library(sparklyr) sc <- spark_connect(master = "local", version = "2.3", packages = "kafka") read_options <- list(kafka.bootstrap.servers = "localhost:9092", subscribe = "topic1") write_options <- list(kafka.bootstrap.servers = "localhost:9092", topic = "topic2") stream <- stream_read_kafka(sc, options = read_options) %>% stream_write_kafka(options = write_options) stream_stop(stream) ## End(Not run)
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