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stream_write_console

Write Console Stream


Description

Writes a Spark dataframe stream into console logs.

Usage

stream_write_console(
  x,
  mode = c("append", "complete", "update"),
  options = list(),
  trigger = stream_trigger_interval(),
  partition_by = NULL,
  ...
)

Arguments

x

A Spark DataFrame or dplyr operation

mode

Specifies how data is written to a streaming sink. Valid values are "append", "complete" or "update".

options

A list of strings with additional options.

trigger

The trigger for the stream query, defaults to micro-batches runnnig every 5 seconds. See stream_trigger_interval and stream_trigger_continuous.

partition_by

Partitions the output by the given list of columns.

...

Optional arguments; currently unused.

See Also

Examples

## Not run: 

sc <- spark_connect(master = "local")

sdf_len(sc, 10) %>%
  dplyr::transmute(text = as.character(id)) %>%
  spark_write_text("text-in")

stream <- stream_read_text(sc, "text-in") %>% stream_write_console()

stream_stop(stream)

## End(Not run)

sparklyr

R Interface to Apache Spark

v1.6.2
Apache License 2.0 | file LICENSE
Authors
Javier Luraschi [aut], Kevin Kuo [aut] (<https://orcid.org/0000-0001-7803-7901>), Kevin Ushey [aut], JJ Allaire [aut], Samuel Macedo [ctb], Hossein Falaki [aut], Lu Wang [aut], Andy Zhang [aut], Yitao Li [aut, cre] (<https://orcid.org/0000-0002-1261-905X>), Jozef Hajnala [ctb], Maciej Szymkiewicz [ctb] (<https://orcid.org/0000-0003-1469-9396>), Wil Davis [ctb], RStudio [cph], The Apache Software Foundation [aut, cph]
Initial release

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