[jira] [Comment Edited] (NUTCH-1829) Generator : unable to distinguish real errors

["Sebastian Nagel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-1829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204012#comment-14204012 ] 

Sebastian Nagel edited comment on NUTCH-1829 at 11/9/14 5:36 PM:
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Seems not to work on 2.x, at least, if batchId is passed from command-line: generate() should explicitly return null if GeneratorReducer.count == 0.


was (Author: wastl-nagel):
Seems not to work on 2.x, at least, if batchId is passed from command-line: must explicitly return null if GeneratorReducer.count == 0.

> Generator : unable to distinguish real errors
> ---------------------------------------------
>
>                 Key: NUTCH-1829
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1829
>             Project: Nutch
>          Issue Type: Bug
>          Components: nutchNewbie
>    Affects Versions: 1.9, 2.2.1
>         Environment: Ubuntu Server 14.04, OpenJDK 7
>            Reporter: Mathieu Bouchard
>            Assignee: Julien Nioche
>             Fix For: 2.3, 1.10
>
>         Attachments: NUTCH-1829-2x-v2.patch
>
>
> The bin/nutch generate command is returning the same error code (-1) if there is an error or no new segment to process, so there is no way to tell if the error is real or not from a shell script. This problem is related to NUTCH-1828.
> The problem can be fixed by modifying the following Java source file:
> http://svn.apache.org/viewvc/nutch/trunk/src/java/org/apache/nutch/crawl/Generator.java?revision=1619934&view=markup
> At line 711, if there are no new segment, the generator returns -1, which is the same return code returned at line 714 if there was an error.



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