- made usage of BufferedStreams explizit to distinct different copy method in serverFileUtils (byte-by-byte and using an own buffer)
- introduced another timeout setting (java internal property)
- more restrictions to clients accessing a single host (a security setting to prevent DoS by mistake)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4674 6c8d7289-2bf4-0310-a012-ef5d649a1542
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
*) First version of a sitemap parser added
- currently only autodetection of sitemap files is supported
*) DB-Import restructured
- pause/resume should work again now
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3666 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
- previously rules for all crawlers and special rules for yacy where
combined using AND. Now the general rule will be ignored if there is
a special rule for yacy (according to rfc)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1867 6c8d7289-2bf4-0310-a012-ef5d649a1542
- solving problems with unkown certificates by implementing a dummy trust Manager
- adding https support to robots-parser
- Seed File can now be downloaded from https resources
- adapting plasmaHTCache.java to support https URLs properly
*) URL Normalization
- sub URLs are now normalized properly during indexing
- pointing urlNormalForm function of plasmaParser to htmlFilterContentScraper function
- normalizing URLs which were received by a crawlOrder request
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1024 6c8d7289-2bf4-0310-a012-ef5d649a1542
- remote proxy configuration can now be "really" changed on the fly and takes effect immediately
- adding possibility to disable remote proxy usage for yacy->yacy communication
- adding possibility to disable remote proxy usage for ssl
- restructuring proxy configuration so that it is stored in a single place now
*) Adding possibility to import a foreign word DB (or even more of them in parallel)
at runtime into the peers DB
- this can be done by calling IndexImport_p.html
- ATTENTION: please not that at the moment this thread must be aborted via gui
before a normal server shutdown is done.
- TODO: integrating IndexImport Thread into normal server shutdown
- TODO: Adding posibility to import crawl-queues, etc. from foreign peers
- TODO: removing old import function from yacy.java and calling the new routines instead
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@968 6c8d7289-2bf4-0310-a012-ef5d649a1542
- adding automatic refresh
- accepts new parameter nameLookup which can be used to deactivate
yacy-peer name lookup (because we have problems with this on large seed-dbs)
*) ViewFile
New page that can be used to view
- original content
- plain text content
- parsed content
- parsed sentences
of a webpage specified by there url hash
Mainly for debugging purpose at the moment
*) Robots.txt
Bugfix for if-modified-since usage
TODO: synchronization of downloads to avoid loading the same robots-file
multiple times in parallel by different threads
*) Shutdown
Better abortion of transferRWI and transferURL sessions on server shutdown
*) Status Page
Adding icon to start/stop crawling via status page
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@950 6c8d7289-2bf4-0310-a012-ef5d649a1542
cutting of comments at the line end
*) Adding Threadpool for stackCrawl Thread to speedup robots.txt download
and double url checks
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@882 6c8d7289-2bf4-0310-a012-ef5d649a1542
various checks like the blacklist check or the robots.txt disallow check are now
done by a separate thread to unburden the indexer thread(s)
TODO: maybe we have to introduce a threadpool here if it turn out that this single
thread is a bottleneck because of the time consuming robots.txt downloads
*) improved index transfer
The index selection and transmission is done in parallel now to improve index
transfer performance.
TODO: maybe we could speed up performance by unsing multiple transmission threads in
parallel instead of only a single one.
*) gzip encoded post requests
it is now configureable if a gzip encoded post request should be send on
intex transfer/distribution
*) storage Peer (very experimentell and not optimized yet)
Now it's possible to send the result of the yacy indexer thread to a remote peer
istead of storing the indexed words locally.
This could be done by setting the property "storagePeerHash" in the yacy config file
- Please note that if the index transfer fails, the index ist stored locally.
- TODO: currently this index transfer is done by the indexer thread.
To seedup the indexer
a) this transmission should be done in parallel and
b) multiple chunks should be bundled and transfered together
*) general performance improvements
- better memory cleanup after http request processing has finished
- replacing some string concatenations with stringBuffers
- replacing BufferedInputStreams with serverByteBuffer
- replacing vectors with arraylists wherever possible
- replacing hashtables with hashmaps wherever possible
This was done because function calls to verctor or hashtable functions
take 3 time longer than calls to functions of arraylists or hashmaps.
TODO: we should take a look on the class serverObject which is inherited from hashmap
Do we realy need a synchronization for this class?
TODO: replace arraylists with linkedLists if random access to the list elements is not needed
*) Robots Parser supports if-modified-since downloads now
If the downloaded robots.txt file is older than 7 days the robots parser tries to
download the robots.txt with the if-modified-since header to avoid unnecessary downloads
if the file was not changed. Additionally the ETag header is used to detect changes.
*) Crawler: better handling of unsupported mimeTypes + FileExtension
*) Bugfix: plasmaWordIndexEntity was not closed correctly in
- query.java
- plasmaswitchboard.java
*) function minimizeUrlDB added to yacy.java
this function tests the current urlHashDB for unused urls
ATTENTION: please don't use this function at the moment because
it causes the wordIndexDB to flush all words into the
word directory!
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@853 6c8d7289-2bf4-0310-a012-ef5d649a1542
orbiter