search profiling showed, that a major amount of time is wasted by computing url hashes. The computation does an intranet-check, which needs a DNS lookup. This caused that each urlhash computation needed 100-200 milliseconds, which caused remote searches to delay at least 1 second more that necessary. The solution to this problem is to attach a URL hash to the URL data structure, because that means that the url hash value can be filled after retrieval of the URL from the database. The redesign of the url/urlhash management caused a major redesign of many parts of the software. Since some parts had been decided to be given up they had been removed during this change to avoid unnecessary maintenance of unused code.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4074 6c8d7289-2bf4-0310-a012-ef5d649a1542
- different handling of link quotation
- different handling of link normalization
- enhanced html/unicode en/de-coding
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3993 6c8d7289-2bf4-0310-a012-ef5d649a1542
- for each crawl start, there is now a flag for text and media
- the localCrawl flag is superfluous
- added new crawl profiles
- if an image search is done, only media links are crawled for the snippets
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3100 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added an assortment importer. the old database structures can
be imported with
java -classpath classes yacy -migrateassortments
- modified wordmigration. The indexes from WORDS are now imported
to the collection database. The call is
java -classpath classes yacy -migratewords
(as it was)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3044 6c8d7289-2bf4-0310-a012-ef5d649a1542
This shall be seen as an experiment to exclude all cases where
there could be a DNS lookup during URL comparisment.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2290 6c8d7289-2bf4-0310-a012-ef5d649a1542
- re-crawl by age of page (enter in minutes)
- auto-domain-filter
- maximum number of pages per domain
NOT YET TESTED!
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1949 6c8d7289-2bf4-0310-a012-ef5d649a1542
