Read Kafka Stream

Reads a Kafka stream as a Spark dataframe stream.

stream_read_kafka(sc, name = NULL, options = list(), ...)

Arguments

sc

A spark_connection.

name

The name to assign to the newly generated stream.

options

A list of strings with additional options.

...

Optional arguments; currently unused.

Details

Please note that Kafka requires installing the appropriate package by conneting with a config setting where sparklyr.shell.packages is set to, for Spark 2.3.2, "org.apache.spark:spark-sql-kafka-0-10_2.11:2.3.2".

See also

Examples

if (FALSE) { config <- spark_config() # The following package is dependent to Spark version, for Spark 2.3.2: config$sparklyr.shell.packages <- "org.apache.spark:spark-sql-kafka-0-10_2.11:2.3.2" sc <- spark_connect(master = "local", config = config) 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) }