Kiyan Ahmadizadeh created CRUNCH-67:
---------------------------------------
Summary: Multiple writes in a pipeline are not performed
Key: CRUNCH-67
URL: https://issues.apache.org/jira/browse/CRUNCH-67
Project: Crunch
Issue Type: Bug
Components: Core, Scrunch
Affects Versions: 0.4.0
Reporter: Kiyan Ahmadizadeh
Assignee: Josh Wills
Consider the following simple PipelineApp (in Scala) that:
1. Reads in a text source.
2. Cleans the text of non-alphabetic characters.
3. Writes the sanitized text to a text file.
4. Computes word counts from the text.
5. Writes the word counts to a text file.
When this code is executed, the write from step 5 is performed successfully,
but the write from step 3 is not.
{code}
object ShakesMultiWrite extends PipelineApp {
val shakes = read(From.textFile("shakes.txt"))
// Now let's clean-up the text
val cleanShakes = shakes.map {line =>
val cleanText = line.replaceAll( """[^A-Za-z\W]""", "").toLowerCase()
cleanText
}
cleanShakes.write(To.textFile("shakesText/cleanShakes"))
// Count words
val wordCounts = cleanShakes.flatMap { line =>
line
.split( """\W+""") // Split the text into words.
.filter(w => !w.isEmpty()) // Get rid of any empty words created.
}.count()
wordCounts.write(To.textFile("shakesText/wordCounts"))
// Runs the pipeline
run()
}
{code}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
