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From "Markus Jelsma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (NUTCH-1980) Jexl expressions for CrawlDbReader
Date Wed, 01 Jul 2015 07:39:04 GMT

     [ https://issues.apache.org/jira/browse/NUTCH-1980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Markus Jelsma updated NUTCH-1980:
---------------------------------
    Description: 
Jexl expression support for the CrawlDbReader. This allows you to read items from the database
based on their metadata with flexilibity and boolean logic. Some examples

{code}
* Get all english pages
-expr "lang=en"

* Get all english pages that have a low response time
-expr "lang=en && _rs_ > 5000"
{code}

  was:
Jexl expression support for the CrawlDbReader. This allows you to read items from the database
based on their metadata with flexilibity and boolean logic. Some examples

* Get all english pages
-expr "lang=en"

* Get all english pages that have a low response time
-expr "lang=en && _rs_ > 5000"


> Jexl expressions for CrawlDbReader
> ----------------------------------
>
>                 Key: NUTCH-1980
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1980
>             Project: Nutch
>          Issue Type: New Feature
>          Components: crawldb
>            Reporter: Markus Jelsma
>            Assignee: Markus Jelsma
>             Fix For: 1.11
>
>         Attachments: NUTCH-1980-1.9.patch, NUTCH-1980-1.9.patch, NUTCH-1980-1.9.patch,
NUTCH-1980.patch
>
>
> Jexl expression support for the CrawlDbReader. This allows you to read items from the
database based on their metadata with flexilibity and boolean logic. Some examples
> {code}
> * Get all english pages
> -expr "lang=en"
> * Get all english pages that have a low response time
> -expr "lang=en && _rs_ > 5000"
> {code}



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