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https://issues.apache.org/jira/browse/NUTCH-769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12783245#action_12783245
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Andrzej Bialecki commented on NUTCH-769:
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The patch contains a new method, checkExceptionThreshold,which seems to do the
right thing, but this method is never used in Fetcher. I think the idea was to
call it in FetchItemQueues.finishItem()?
> Fetcher to skip queues for URLS getting repeated exceptions
> -------------------------------------------------------------
>
> Key: NUTCH-769
> URL: https://issues.apache.org/jira/browse/NUTCH-769
> Project: Nutch
> Issue Type: Improvement
> Components: fetcher
> Reporter: Julien Nioche
> Priority: Minor
> Attachments: NUTCH-769.patch
>
>
> As discussed on the mailing list (see
> http://www.mail-archive.com/nutch-u...@lucene.apache.org/msg15360.html) this
> patch allows to clear URLs queues in the Fetcher when more than a set number
> of exceptions have been encountered in a row. This can speed up the fetching
> substantially in cases where target hosts are not responsive (as a
> TimeoutException would be thrown) and limits cases where a whole Fetch step
> is slowed down because of a few queues.
> by default the parameter fetcher.max.exceptions.per.queue has a value of -1
> and is deactivated.
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