Marcin Okraszewski wrote:

I tried to run Nutch 0.9 from my network, which require HTTP proxy access. I 
have set up http.proxy.host and http.proxy.port properties in my 
nutch-site.xml. Proxy do not require authorization. Nutch takes it - I can see 
it in log (see below). But still I get java.net.UnknownHostException.

Interestingly, I used Wireshark (or Ethereal) to sniff if Nutch really tries to use 
proxy. And there is request from Nutch to proxy to get robots.txt. It says "404 Not 
Found". There is no fallowing request for particular page, only for robots.txt.

Any ideas what is wrong?

IIRC we had to patch Nutch in order to make it work with a proxy, but that is Nutch 0.8 and I don't have this code available right now, but you might want to search JIRA for possible patches. Whereas actually it seems like something has been done

http://www.apache.org/dist/lucene/nutch/CHANGES-0.9.txt

issues 21

HTH

Michael

Marcin Okraszewski

007-05-15 17:38:59,465 INFO  http.Http - http.proxy.host = <my_proxy_host>
2007-05-15 17:38:59,465 INFO  http.Http - http.proxy.port = <my_proxy_port>
2007-05-15 17:38:59,465 INFO  http.Http - http.timeout = 10000
2007-05-15 17:38:59,465 INFO  http.Http - http.content.limit = 65536
2007-05-15 17:38:59,465 INFO  http.Http - http.agent = 
YetAnotherSearchEngine/Nutch-0.9
2007-05-15 17:38:59,465 INFO  http.Http - protocol.plugin.check.blocking = true
2007-05-15 17:38:59,465 INFO  http.Http - protocol.plugin.check.robots = true
2007-05-15 17:38:59,466 INFO  http.Http - fetcher.server.delay = 100
2007-05-15 17:38:59,466 INFO  http.Http - http.max.delays = 100
2007-05-15 17:38:59,832 ERROR http.Http - org.apache.nutch.protocol.http.api.HttpException: 
java.net.UnknownHostException: <crawl_site>: <crawl_site>
2007-05-15 17:38:59,832 ERROR http.Http - at 
org.apache.nutch.protocol.http.api.HttpBase.blockAddr(HttpBase.java:340)
2007-05-15 17:38:59,832 ERROR http.Http - at 
org.apache.nutch.protocol.http.api.HttpBase.getProtocolOutput(HttpBase.java:212)
2007-05-15 17:38:59,832 ERROR http.Http - at 
org.apache.nutch.fetcher.Fetcher$FetcherThread.run(Fetcher.java:145)
2007-05-15 17:38:59,832 ERROR http.Http - Caused by: 
java.net.UnknownHostException: www.gral.pl: www.gral.pl
2007-05-15 17:38:59,832 ERROR http.Http - at 
java.net.InetAddress.getAllByName0(InetAddress.java:1128)
2007-05-15 17:38:59,833 ERROR http.Http - at 
java.net.InetAddress.getAllByName0(InetAddress.java:1098)
2007-05-15 17:38:59,833 ERROR http.Http - at 
java.net.InetAddress.getAllByName(InetAddress.java:1061)
2007-05-15 17:38:59,833 ERROR http.Http - at 
java.net.InetAddress.getByName(InetAddress.java:958)
2007-05-15 17:38:59,833 ERROR http.Http - at 
org.apache.nutch.protocol.http.api.HttpBase.blockAddr(HttpBase.java:336)
2007-05-15 17:38:59,833 ERROR http.Http - ... 2 more
2007-05-15 17:38:59,834 INFO  fetcher.Fetcher - fetch of <crawl_site> failed with: 
org.apache.nutch.protocol.http.api.HttpException: java.net.UnknownHostException: 
<crawl_site>: <crawl_site>




--
Michael Wechner
Wyona      -   Open Source Content Management   -    Apache Lenya
http://www.wyona.com                      http://lenya.apache.org
[EMAIL PROTECTED]                        [EMAIL PROTECTED]
+41 44 272 91 61

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