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Posted to dev@nutch.apache.org by "Sebastian Nagel (Jira)" <ji...@apache.org> on 2019/09/30 09:01:00 UTC

[jira] [Updated] (NUTCH-2737) Generator: count and log reason of rejections during selection

     [ https://issues.apache.org/jira/browse/NUTCH-2737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Nagel updated NUTCH-2737:
-----------------------------------
    Affects Version/s:     (was: 1.16)
                       1.15

> Generator: count and log reason of rejections during selection
> --------------------------------------------------------------
>
>                 Key: NUTCH-2737
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2737
>             Project: Nutch
>          Issue Type: Improvement
>    Affects Versions: 1.15
>            Reporter: Sebastian Nagel
>            Priority: Minor
>             Fix For: 1.17
>
>
> During the map phase of the selection step, the generator rejects many (usually most of) items for various reasons:
> - not yet time for a refetch (returned by the fetch scheduler)
> - generator score too low
> - status does not match restrict status
> - Jexl expression not matched
> and some more. It would be useful if the reasons are counted and logged, esp. when the CrawlDb gets bigger and multiple options to restrict the selection are used.



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