You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@nutch.apache.org by "Andrzej Bialecki (JIRA)" <ji...@apache.org> on 2006/06/26 22:33:30 UTC
[jira] Updated: (NUTCH-61) Adaptive re-fetch interval. Detecting
umodified content
[ http://issues.apache.org/jira/browse/NUTCH-61?page=all ]
Andrzej Bialecki updated NUTCH-61:
-----------------------------------
Attachment: nutch-61-417287.patch
This patch, besides bringing it up-to-date with the trunk/, also adds a maximum cap on fetch interval and a better strategy for merging records in Injector.
> Adaptive re-fetch interval. Detecting umodified content
> -------------------------------------------------------
>
> Key: NUTCH-61
> URL: http://issues.apache.org/jira/browse/NUTCH-61
> Project: Nutch
> Type: New Feature
> Components: fetcher
> Reporter: Andrzej Bialecki
> Assignee: Andrzej Bialecki
> Attachments: 20050606.diff, 20051230.txt, 20060227.txt, nutch-61-417287.patch
>
> Currently Nutch doesn't adjust automatically its re-fetch period, no matter if individual pages change seldom or frequently. The goal of these changes is to extend the current codebase to support various possible adjustments to re-fetch times and intervals, and specifically a re-fetch schedule which tries to adapt the period between consecutive fetches to the period of content changes.
> Also, these patches implement checking if the content has changed since last fetching; protocol plugins are also changed to make use of this information, so that if content is unmodified it doesn't have to be fetched and processed.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
http://www.atlassian.com/software/jira