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https://issues.apache.org/jira/browse/CRUNCH-371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gabriel Reid updated CRUNCH-371:
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Attachment: CRUNCH-371.patch
Patch to resolve the issue, by just jumping out if there is nothing to output.
> AvroPathPerKeyTarget doesn't work with empty input
> --------------------------------------------------
>
> Key: CRUNCH-371
> URL: https://issues.apache.org/jira/browse/CRUNCH-371
> Project: Crunch
> Issue Type: Bug
> Reporter: Gabriel Reid
> Attachments: CRUNCH-371.patch
>
>
> The AvroPathPerKeyTarget doesn't work properly when there is nothing to be
> output (for example, if all records have been filtered out somehow). This
> situation results in an exception like the following on HDFS on hadoop-1
> {code}
> java.io.IOException: java.lang.IllegalArgumentException: Reducer output
> name 'out0' cannot be parsed
> {code}
> and an FileNotFoundException on hadoop-2.
> In both cases, there should be no exception, and no output should be written.
> More background on this in the following mailing list discussion:
> http://mail-archives.apache.org/mod_mbox/crunch-user/201403.mbox/%3ccacijwiagojskvsdq1_x6tbyfhwezecynmv-jpmwjzhq8ccs...@mail.gmail.com%3e
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