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https://issues.apache.org/jira/browse/CRUNCH-67?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Kiyan Ahmadizadeh updated CRUNCH-67:
------------------------------------
Description:
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.
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()
}
was:
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}
> 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.
> 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()
> }
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