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
*) better logging of parser failures
*) simplified usage of plasmaparser through switchboard
*) restructuring of crawler
- crawler now returns an error message if it is used in sync mode (e.g. by snippet fetcher)
*) snippet-fetcher: more verbose error messages
*) serverByteBuffer.java: adding new function append(String,encoding)
*) serverFileUtils.java: adding functions to copy only a given number of bytes between streams
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2641 6c8d7289-2bf4-0310-a012-ef5d649a1542
*) adding content parser for
- pdf (using the pdf-box library)
- doc (using the textmining.org library)
*) adding a Interface for content parsers
*) adding a configuration file which can be used to configure which parser is used for which mimeType
*) Sempahore class was moved and renamed to serverSemaphore
*) Changing yacy shutdown behaviour
Buzy waiting loop for shutdown was removed and replaced with a blocking call (using the semaphore class mentioned above) to the new switchboard.waitForShutdown method.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@46 6c8d7289-2bf4-0310-a012-ef5d649a1542
danielr