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https://issues.apache.org/jira/browse/NUTCH-1499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lewis John McGibbney updated NUTCH-1499:
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Patch Info: Patch Available
> Usage of multiple ipv4 addresses and network cards on fetcher machines
> ----------------------------------------------------------------------
>
> Key: NUTCH-1499
> URL: https://issues.apache.org/jira/browse/NUTCH-1499
> Project: Nutch
> Issue Type: New Feature
> Components: fetcher
> Affects Versions: 1.5.1
> Reporter: Walter Tietze
> Priority: Minor
> Fix For: 1.7
>
> Attachments: apache-nutch-1.5.1.NUTCH-1499.patch
>
>
> Adds for the fetcher threads the ability to use multiple configured ipv4
> addresses.
> On some cluster machines there are several ipv4 addresses configured where
> each ip address is associated with its own network interface.
> This patch enables to configure the protocol-http and the protocol-httpclient
> to use these network interfaces in a round robin style.
> If the feature is enabled, a helper class reads at *startup* the network
> configuration. In each http network connection the next ip address is taken.
> This method is synchronized, but this should be no bottleneck for the overall
> performance of the fetcher threads.
> This feature is tested on our cluster for the protocol-http and the
> protocol-httpclient protocol.
>
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