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https://issues.apache.org/jira/browse/NUTCH-2442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16238278#comment-16238278
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Omkar Reddy commented on NUTCH-2442:
------------------------------------
[~wastl-nagel] I am working on this on my local branch of NUTCH-2375. Just so
that I do not head in the wrong direction, I was thinking the fix should be in
the following manner :
try{
boolean complete = job.waitForCompletion(true);
if(!complete){
''' cleanup statements to revert any significant changes that happened
during or before the job.'''
throw new Exception("<specific job> FAILED.");
}
}catch(Exception e){
throw e;
}
Please let me know if I need to add anything else or if there is any
discrepancy in what I am doing above. Thanks.
> Injector to stop if job fails to avoid loss of CrawlDb
> ------------------------------------------------------
>
> Key: NUTCH-2442
> URL: https://issues.apache.org/jira/browse/NUTCH-2442
> Project: Nutch
> Issue Type: Bug
> Components: injector
> Affects Versions: 1.13
> Reporter: Sebastian Nagel
> Priority: Critical
> Fix For: 1.14
>
>
> Injector does not check whether the MapReduce job is successful. Even if the
> job fails
> - installs the CrawlDb
> -- move current/ to old/
> -- replace current/ with an empty or potentially incomplete version
> - exits with code 0 so that scripts running the crawl workflow cannot detect
> the failure -- if Injector is run a second time the CrawlDb is lost (both
> current/ and old/ are empty or corrupted)
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