recrawl sites with a scheduled crawling

[mina <ta...@gmail.com>]

hi, i want to re_crawl my sites every hour. i write a script for this. i edit
some properties in nutch-site.xml. but my re_crawler fetches urls only for 3
times an after that it stop fetching. it's mean that my nutch don't update
after 3 hours. this is my changes in nutch-site.xml:

<property>
  <name>db.fetch.interval.default</name> 
  <value>30</value> 
  <description>The default number of seconds between re-fetches of a page
(30 days).</description> 
  </property>
<property>
  <name>db.fetch.schedule.class</name> 
  <value>org.apache.nutch.crawl.AdaptiveFetchSchedule</value> 
  <description>The implementation of fetch schedule. DefaultFetchSchedule
simply adds the original fetchInterval to the last fetch time, regardless of
page changes.</description> 
  </property>
 <property>
  <name>solr.commit.size</name> 
  <value>10</value> 
  <description>Defines the number of documents to send to Solr in a single
update batch. Decrease when handling very large documents to prevent Nutch
from running out of memory.</description> 
  </property>
 <property>
  <name>db.fetch.interval.max</name> 
  <value>36000</value> 
  <description>The maximum number of seconds between re-fetches of a page
(90 days). After this period every page in the db will be re-tried, no
matter what is its status.</description> 
  </property>

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