Hi, I used less command and checked, it shows the past content , not modified one. Any other cache clearing from crawl db? or any property to set in nutch-site so that it does re-fetch modified content?
- Cleared tomcat cache - settings: <property> <name>db.fetch.interval.default</name> <value>600</value> </description> </property> <property> <name>db.injector.update</name> <value>true</value> </description> </property> Crawl command : bin/nutch crawl urls -solr http://localhost:8080/solrnutch-dir crawltest -depth 10 This command I executed after 1 hour (modifying some sites content and title) but the title or content is still not fetched. The dump (redseg dump) shows old content only :( To separately update solr, I executed this command : bin/nutch solrindex http://localhost:8080/solrnutch/ crawltest/crawldb -linkdb crawltest/linkdb crawltest/segments/* -deleteGone but no sucess, nothing updated to solr. *trace :* SolrIndexer: starting at 2013-03-05 17:07:15 SolrIndexer: deleting gone documents Indexing 16 documents Deleting 1 documents SolrIndexer: finished at 2013-03-05 17:09:38, elapsed: 00:02:22 But after this , when I check in solr (http://localhost:8080/solrnutch/) it still shows 16 docs, why it can be? I use nutch 1.5.1 version and solr3.6 Thanks - David P.S I basically wanted to achieve on demand re-crawl so that all modified website get updated in solr, and so when user searches, he gets accurate results. On Tue, Mar 5, 2013 at 12:54 PM, feng lu <amuseme...@gmail.com> wrote: > Hi David > > yes, it's a tomcat web service cache. > > The dump file can use "less" command to open if you use linux OS. or you > can use > "bin/nutch readseg -get segments/20130121115214/ http://www.cnbeta.com/"; > to > dump the information of specified url. > > > > > On Tue, Mar 5, 2013 at 3:02 PM, feng lu <amuseme...@gmail.com> wrote: > > > > > > > > > On Tue, Mar 5, 2013 at 2:49 PM, David Philip < > davidphilipshe...@gmail.com>wrote: > > > >> Hi, > >> > >> web server cache - you mean /tomcat/work/; where the solr is > running? > >> Did u mean that cache? > >> > >> I tried to use the below command {bin/nutch readseg -dump > >> crawltest/segments/20130304185844/ crawltest/test}and it gives dump > file, > >> format is GMC link (application/x-gmc-link) - I am not able to open it. > >> How to open this file? > >> > >> How ever when I ran : bin/nutch readseg -list > >> crawltest/segments/20130304185844/ > >> NAME GENERATED FETCHER START FETCHER END FETCHED PARSED > >> 20130304185844 1 2013-03-04T18:58:53 2013-03-04T18:58:53 1 1 > >> > >> > >> - David > >> > >> > >> > >> > >> > >> On Tue, Mar 5, 2013 at 11:25 AM, feng lu <amuseme...@gmail.com> wrote: > >> > >> > Hi David > >> > > >> > Do you clear the web server cache. Maybe the refetch is also crawl the > >> old > >> > page. > >> > > >> > Maybe you can dump the url content to check the modification. > >> > using bin/nutch readseg command. > >> > > >> > Thanks > >> > > >> > > >> > On Tue, Mar 5, 2013 at 1:28 PM, David Philip < > >> davidphilipshe...@gmail.com > >> > >wrote: > >> > > >> > > Hi Markus, > >> > > > >> > > So I was trying with the *db.injector.update *point that you > >> mentioned, > >> > > please see my observations below*. * > >> > > Settings: I did *db.injector.update * to* true *and * > >> > > db.fetch.interval.default *to* 1hour. * > >> > > * > >> > > * > >> > > * > >> > > * > >> > > *Observation:* > >> > > > >> > > On first time crawl[1], 14 urls were successfully crawled and > >> indexed to > >> > > solr. > >> > > case 1 : > >> > > In those 14 urls I modified the content and title of one url (say > >> Aurl) > >> > and > >> > > re executed the crawl after one hour. > >> > > I see that this(Aurl) url is re-fetched (it shows in log) but at > Solr > >> > level > >> > > : for that url (aurl): content field and title field didn't get > >> updated. > >> > > Why? should I do any configuration for this to make solr index get > >> > updated? > >> > > > >> > > case2: > >> > > Added new url to the crawling site > >> > > The url got indexed - This is success. So interested to know why the > >> > above > >> > > case failed? What configuration need to be made? > >> > > > >> > > > >> > > Thanks - David > >> > > > >> > > > >> > > *PS:* > >> > > Apologies that I am still asking questions on same topic. I am not > >> able > >> > to > >> > > find good way for incremental crawl so trying different approaches. > >> > Once I > >> > > am clear I will blog this and share it. Thanks lot for replies from > >> > mailer. > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > On Wed, Feb 27, 2013 at 4:06 PM, Markus Jelsma > >> > > <markus.jel...@openindex.io>wrote: > >> > > > >> > > > You can simply reinject the records. You can overwrite and/or > >> update > >> > the > >> > > > current record. See the db.injector.update and overwrite settings. > >> > > > > >> > > > -----Original message----- > >> > > > > From:David Philip <davidphilipshe...@gmail.com> > >> > > > > Sent: Wed 27-Feb-2013 11:23 > >> > > > > To: user@nutch.apache.org > >> > > > > Subject: Re: Nutch Incremental Crawl > >> > > > > > >> > > > > HI Markus, I meant over riding the injected interval.. How to > >> > override > >> > > > the > >> > > > > injected fetch interval? > >> > > > > While crawling fetch interval was set 30days (default). Now I > >> want to > >> > > > > re-fetch same site (that is to force re-fetch) and not wait for > >> fetch > >> > > > > interval (30 days).. how can we do that? > >> > > > > > >> > > > > > >> > > > > Feng Lu : Thank you for the reference link. > >> > > > > > >> > > > > Thanks - David > >> > > > > > >> > > > > > >> > > > > > >> > > > > On Wed, Feb 27, 2013 at 3:22 PM, Markus Jelsma > >> > > > > <markus.jel...@openindex.io>wrote: > >> > > > > > >> > > > > > The default or the injected interval? The default interval can > >> be > >> > set > >> > > > in > >> > > > > > the config (see nutch-default for example). Per URL's can be > set > >> > > using > >> > > > the > >> > > > > > injector: <URL>\tnutch.fixedFetchInterval=86400 > >> > > > > > > >> > > > > > > >> > > > > > -----Original message----- > >> > > > > > > From:David Philip <davidphilipshe...@gmail.com> > >> > > > > > > Sent: Wed 27-Feb-2013 06:21 > >> > > > > > > To: user@nutch.apache.org > >> > > > > > > Subject: Re: Nutch Incremental Crawl > >> > > > > > > > >> > > > > > > Hi all, > >> > > > > > > > >> > > > > > > Thank you very much for the replies. Very useful > >> information to > >> > > > > > > understand how incremental crawling can be achieved. > >> > > > > > > > >> > > > > > > Dear Markus: > >> > > > > > > Can you please tell me how do I over ride this fetch > interval > >> , > >> > > > incase > >> > > > > > if I > >> > > > > > > require to fetch the page before the time interval is > passed? > >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > Thanks very much > >> > > > > > > - David > >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > > >> > > > > > > On Thu, Feb 14, 2013 at 2:57 PM, Markus Jelsma > >> > > > > > > <markus.jel...@openindex.io>wrote: > >> > > > > > > > >> > > > > > > > If you want records to be fetched at a fixed interval its > >> > easier > >> > > to > >> > > > > > inject > >> > > > > > > > them with a fixed fetch interval. > >> > > > > > > > > >> > > > > > > > nutch.fixedFetchInterval=86400 > >> > > > > > > > > >> > > > > > > > > >> > > > > > > > > >> > > > > > > > -----Original message----- > >> > > > > > > > > From:kemical <mickael.lume...@gmail.com> > >> > > > > > > > > Sent: Thu 14-Feb-2013 10:15 > >> > > > > > > > > To: user@nutch.apache.org > >> > > > > > > > > Subject: Re: Nutch Incremental Crawl > >> > > > > > > > > > >> > > > > > > > > Hi David, > >> > > > > > > > > > >> > > > > > > > > You can also consider setting shorter fetch interval > time > >> > with > >> > > > nutch > >> > > > > > > > inject. > >> > > > > > > > > This way you'll set higher score (so the url is always > >> taken > >> > in > >> > > > > > priority > >> > > > > > > > > when you generate a segment) and a fetch.interval of 1 > >> day. > >> > > > > > > > > > >> > > > > > > > > If you have a case similar to me, you'll often want some > >> > > homepage > >> > > > > > fetch > >> > > > > > > > each > >> > > > > > > > > day but not their inlinks. What you can do is inject all > >> your > >> > > > seed > >> > > > > > urls > >> > > > > > > > > again (assuming those url are only homepages). > >> > > > > > > > > > >> > > > > > > > > #change nutch option so existing urls can be injected > >> again > >> > in > >> > > > > > > > > conf/nutch-default.xml or conf/nutch-site.xml > >> > > > > > > > > db.injector.update=true > >> > > > > > > > > > >> > > > > > > > > #Add metadata to update score/fetch interval > >> > > > > > > > > #the following line will concat to each line of your > seed > >> > urls > >> > > > files > >> > > > > > with > >> > > > > > > > > the new score / new interval > >> > > > > > > > > perl -pi -e > >> > > > > > 's/^(.*)\n$/\1\tnutch.score=100\tnutch.fetchInterval=80000' > >> > > > > > > > > [your_seed_url_dir]/* > >> > > > > > > > > > >> > > > > > > > > #run command > >> > > > > > > > > bin/nutch inject crawl/crawldb [your_seed_url_dir] > >> > > > > > > > > > >> > > > > > > > > Now, the following crawl will take your urls in top > >> priority > >> > > and > >> > > > > > crawl > >> > > > > > > > them > >> > > > > > > > > once a day. I've used my situation to illustrate the > >> concept > >> > > but > >> > > > i > >> > > > > > guess > >> > > > > > > > you > >> > > > > > > > > can tweek params to fit your needs. > >> > > > > > > > > > >> > > > > > > > > This way is useful when you want a regular fetch on some > >> > urls, > >> > > if > >> > > > > > it's > >> > > > > > > > > occured rarely i guess freegen is the right choice. > >> > > > > > > > > > >> > > > > > > > > Best, > >> > > > > > > > > Mike > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > > >> > > > > > > > > -- > >> > > > > > > > > View this message in context: > >> > > > > > > > > >> > > > > > > >> > > > > >> > > > >> > > >> > http://lucene.472066.n3.nabble.com/Nutch-Incremental-Crawl-tp4037903p4040400.html > >> > > > > > > > > Sent from the Nutch - User mailing list archive at > >> > Nabble.com. > >> > > > > > > > > > >> > > > > > > > > >> > > > > > > > >> > > > > > > >> > > > > > >> > > > > >> > > > >> > > >> > > >> > > >> > -- > >> > Don't Grow Old, Grow Up... :-) > >> > > >> > > > > > > > > -- > > Don't Grow Old, Grow Up... :-) > > > > > > -- > Don't Grow Old, Grow Up... :-) >
