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https://issues.apache.org/jira/browse/NUTCH-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lewis John McGibbney updated NUTCH-3041:
----------------------------------------
    Description: 
URLExemptionFilter impementations are used to allow exemptions to external 
domain resources by overriding the {{db.ignore.external.links}} configuration 
setting. This is useful when the crawl is focused to a domain but resources 
like images are hosted on CDN.

Currently [URLExemptionFilters|#L47-L48]] provides the following logging
{quote}INFO o.a.n.n.URLExemptionFilters [LocalJobRunner Map Task Executor 
#0|#0] Found 0 extensions at point:'org.apache.nutch.net.URLExemptionFilter'
{quote}
I find this confusing. It would be better to log *only* if an 
URLExemptionFilter implementation actually exists for a given URL.

I will provide a patch for this.

  was:
URLExemptionFilter impementations are used to allow exemptions to external 
domain resources by overriding the {{db.ignore.external.links}} configuration 
setting. This is useful when the crawl is focused to a domain but resources 
like images are hosted on CDN.

Currently 
[URLExemptionFilters|[https://github.com/apache/nutch/blob/271f92e11c39b7a3583cfcd8d664262cfac59674/src/java/org/apache/nutch/net/URLExemptionFilters.java#L47-L48]]
 provides some confusing INFO-level logging
{quote}INFO o.a.n.n.URLExemptionFilters [LocalJobRunner Map Task Executor #0] 
Found 0 extensions at point:'org.apache.nutch.net.URLExemptionFilter'
{quote}
I find this confusing. It would be better to log *only* if an 
URLExemptionFilter implementation actually exists for a given URL.

I will provide a patch for this.


> Address confusing logging in o.a.n.net.URLExemptionFilters 
> -----------------------------------------------------------
>
>                 Key: NUTCH-3041
>                 URL: https://issues.apache.org/jira/browse/NUTCH-3041
>             Project: Nutch
>          Issue Type: Task
>          Components: net
>    Affects Versions: 1.19, 1.20
>            Reporter: Lewis John McGibbney
>            Assignee: Lewis John McGibbney
>            Priority: Minor
>             Fix For: 1.21
>
>
> URLExemptionFilter impementations are used to allow exemptions to external 
> domain resources by overriding the {{db.ignore.external.links}} configuration 
> setting. This is useful when the crawl is focused to a domain but resources 
> like images are hosted on CDN.
> Currently [URLExemptionFilters|#L47-L48]] provides the following logging
> {quote}INFO o.a.n.n.URLExemptionFilters [LocalJobRunner Map Task Executor 
> #0|#0] Found 0 extensions at point:'org.apache.nutch.net.URLExemptionFilter'
> {quote}
> I find this confusing. It would be better to log *only* if an 
> URLExemptionFilter implementation actually exists for a given URL.
> I will provide a patch for this.



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