You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@nutch.apache.org by "Doğacan Güney (JIRA)" <ji...@apache.org> on 2009/01/25 12:41:59 UTC
[jira] Closed: (NUTCH-627) Minimize host address lookup
[ https://issues.apache.org/jira/browse/NUTCH-627?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Doğacan Güney closed NUTCH-627.
-------------------------------
> Minimize host address lookup
> ----------------------------
>
> Key: NUTCH-627
> URL: https://issues.apache.org/jira/browse/NUTCH-627
> Project: Nutch
> Issue Type: Improvement
> Components: generator
> Reporter: Otis Gospodnetic
> Assignee: Otis Gospodnetic
> Attachments: NUTCH-627.patch
>
>
> The simple patch that I'm about to attach keeps track of hosts whose "max URLs per host" limit we already reached, as well as hosts whose hostname->IP lookup already failed. For such hosts, further DNS lookups are skipped:
> - there is no point in looking up a hostname yet again if we already have the max number of URLs for that host
> - there is little point in attempting to look up a hostname yet again if the previous lookup already failed
> In a simple test, this saved a few hundred thousand lookups for the first case and a few hundred lookups for the second case.
> If nobody complains, I'll commit by the end of the week.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.