Nutch 2.2.1 & HBase - Can I create a new property in nutch-site.xml

问题

I wanna develop a topical web robot using Nutch 2.2.1. And I wanna create a new property with some topic keywords,like following:

<property>
    <name>html.metatitle.keys</name>
    <value>movie,actor,firm</value>
    <description>
    </description>
</property>

回答1:

There are two different solutions available for your problem:

1. Implementing a customized HtmlParseFilter plugin to filter pages based on your desired keywords. For more information about Nutch extension points and writing customized plugin for Nutch take a look at these manuals:

   http://wiki.apache.org/nutch/AboutPlugins

   http://wiki.apache.org/nutch/WritingPluginExample

2. Using an indexer to filter documents based on desired keywords; However, this solution is available if you have indexer in your system design architecture. In this case Apache Solr could help you for filtering documents before indexing. Here you have to implement a customized UpdateRequestProcessor. For more information about Solr and its extension points take a look at these pages:

   https://wiki.apache.org/solr/FrontPage

   https://wiki.apache.org/solr/UpdateRequestProcessor

来源：https://stackoverflow.com/questions/29786729/nutch-2-2-1-hbase-can-i-create-a-new-property-in-nutch-site-xml