[Nutch-dev] [jira] Commented: (NUTCH-407) Make Nutch crawling parent directories for file protocol configurable
[ http://issues.apache.org/jira/browse/NUTCH-407?page=comments#action_12453932 ] Alan Tanaman commented on NUTCH-407: In our team we feel that this patch would have been beneficial in practical terms. In the context of the enterprise intelligence solution which we are gradually porting over to Nutch, the emphasis is on ease of configuration. We try to avoid exposing features such as regex filter, which although are very powerful for a more experienced user, are perhaps confusing to the novice. This is because we are primarily focused on the enterprise and less on the WWW. This is why we preconfigure the db.ignore.external.links property to true, and then only the urls file is used to seed the crawl. Our ideal is to have a collection of predefined configuration settings for specific scenarios -- e.g. Enterprise-XML, Enterprise-Documents, Enterprise-Database, Internet-News etc. We have a script that generates multiple crawlers, each one with different sources to be crawled, and although possible, it isn't the most practical to change the filters for each one manually based on the individual user requirements. I realise this patch is closed, but how about another approach that says that FileResponse.java looks at db.ignore.external.links and decides based on this whether to go up the tree. Obviously, this would also prevent you from crawling outlinks to the WWW embedded in documents, but when crawling an enterprise file system, you usually don't want to go all over the place anyway. As I see it, file systems are different to the web in that they are inherently hierarchical whereas the web is as its name implies, non-hierarchical. Therefore, when crawling a file system, going up the tree is just as much an external URI (so to speak) as a link to a web site. *Ducks for cover* Alan Make Nutch crawling parent directories for file protocol configurable - Key: NUTCH-407 URL: http://issues.apache.org/jira/browse/NUTCH-407 Project: Nutch Issue Type: Improvement Affects Versions: 0.8 Reporter: Thorsten Scherler Assigned To: Andrzej Bialecki Attachments: 407.fix.diff http://www.mail-archive.com/nutch-user@lucene.apache.org/msg06698.html I am looking into fixing some very weird behavior of the file protocol. I am using 0.8. Researching this topic I found http://www.mail-archive.com/nutch-user@lucene.apache.org/msg06536.html and http://www.folge2.de/tp/search/1/crawling-the-local-filesystem-with-nutch I am on Ubuntu but I have the same problem that nutch is going down the tree (including parents) and not up (including children from the root url). Further I would vote to make the fetch-parents optional and defined per a property whether I would like this not very intuitive feature. -- 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 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Nutch-developers mailing list Nutch-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nutch-developers
[Nutch-dev] [jira] Commented: (NUTCH-407) Make Nutch crawling parent directories for file protocol configurable
[ http://issues.apache.org/jira/browse/NUTCH-407?page=comments#action_12453523 ] Andrzej Bialecki commented on NUTCH-407: - As far as I understand it, the original issue that you refer to (and your issue) both come from misconfigured URLFilters - I don't understand why this fix is needed if you configure them properly. First, let's establish the names for directions - normally up refers to a parent directory, and down refers to a child directory. Current behavior is to collect ANY urls that we find pointing out from the current URL, unless prohibited by filters. In case of crawling local FS, unless you prohibit it in URLFilters from collecting parent dirs it will also collect such URLs - that's why it behaved the way it did. This behavior is consistent with HTTP and FTP crawling. So, instead of your special case fix you should simply put the root directory in your URLFilters configuration. E.g. for urlfilter-regex you should put the following in regex-urlfilter.txt : +^file:///c:/top/directory/ -. Make Nutch crawling parent directories for file protocol configurable - Key: NUTCH-407 URL: http://issues.apache.org/jira/browse/NUTCH-407 Project: Nutch Issue Type: Improvement Affects Versions: 0.8 Reporter: Thorsten Scherler Attachments: 407.fix.diff http://www.mail-archive.com/nutch-user@lucene.apache.org/msg06698.html I am looking into fixing some very weird behavior of the file protocol. I am using 0.8. Researching this topic I found http://www.mail-archive.com/nutch-user@lucene.apache.org/msg06536.html and http://www.folge2.de/tp/search/1/crawling-the-local-filesystem-with-nutch I am on Ubuntu but I have the same problem that nutch is going down the tree (including parents) and not up (including children from the root url). Further I would vote to make the fetch-parents optional and defined per a property whether I would like this not very intuitive feature. -- 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 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Nutch-developers mailing list Nutch-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nutch-developers
[Nutch-dev] [jira] Commented: (NUTCH-407) Make Nutch crawling parent directories for file protocol configurable
[ http://issues.apache.org/jira/browse/NUTCH-407?page=comments#action_12453530 ] Thorsten Scherler commented on NUTCH-407: - Hi Andrzej, thanks for your answer. http://wiki.apache.org/nutch/FAQ#head-f64e7589b2f12792d6d781f3db23840a8f3a1e10 I made a note in the FAQ, I was up to close this issue as wont fix but do not have the right to do so. Can someone close it? Make Nutch crawling parent directories for file protocol configurable - Key: NUTCH-407 URL: http://issues.apache.org/jira/browse/NUTCH-407 Project: Nutch Issue Type: Improvement Affects Versions: 0.8 Reporter: Thorsten Scherler Attachments: 407.fix.diff http://www.mail-archive.com/nutch-user@lucene.apache.org/msg06698.html I am looking into fixing some very weird behavior of the file protocol. I am using 0.8. Researching this topic I found http://www.mail-archive.com/nutch-user@lucene.apache.org/msg06536.html and http://www.folge2.de/tp/search/1/crawling-the-local-filesystem-with-nutch I am on Ubuntu but I have the same problem that nutch is going down the tree (including parents) and not up (including children from the root url). Further I would vote to make the fetch-parents optional and defined per a property whether I would like this not very intuitive feature. -- 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 - Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.phpp=sourceforgeCID=DEVDEV ___ Nutch-developers mailing list Nutch-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nutch-developers
