[jira] [Updated] (NUTCH-1718) update description of property http.robots.agent

["Sebastian Nagel (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NUTCH-1718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebastian Nagel updated NUTCH-1718:
-----------------------------------

    Attachment: NUTCH-1718-trunk.v2.patch

Updated patch:
* for backward compatibility: take care that agent name itself is not given twice
* removed obsolete check whether http.agent.name  is included in http.robots.agents from Fetcher

Backward compatibility with "old" nutch-site.xml has been tested. I'll continue testing. But would opt for applying this: the behavior of Nutch regarding robots.txt has changed significantly with NUTCH-1759, and we can accept this minor change.

> update description of property http.robots.agent
> ------------------------------------------------
>
>                 Key: NUTCH-1718
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1718
>             Project: Nutch
>          Issue Type: Bug
>          Components: fetcher
>    Affects Versions: 1.7, 2.2, 2.2.1
>            Reporter: Sebastian Nagel
>            Priority: Trivial
>             Fix For: 1.9
>
>         Attachments: NUTCH-1718-trunk.v1.patch, NUTCH-1718-trunk.v2.patch
>
>
> The description of property http.robots.agent in nutch-default.xml recommends to add a '*' to the list of agent names. This will cause the same problem as described in NUTCH-1715. The description should be updated. Also regarding "order of precedence" which is dictated since NUTCH-1031 only by ordering of user agents in robots.txt.
> {code:xml}
> <property>
>   <name>http.robots.agents</name>
>   <value>*</value>
>   <description>The agent strings we'll look for in robots.txt files,
>   comma-separated, in decreasing order of precedence. You should
>   put the value of http.agent.name as the first agent name, and keep the
>   default * at the end of the list. E.g.: BlurflDev,Blurfl,*
>   </description>
> </property>
> {code}



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