because of the strongly enhanced indexing speed when using the new IndexCell RWI data structures (> 2000PPM on my notebook), it is now necessary to control the crawling speed depending on the response time of the target server (which is also YaCy in case of some intranet indexing use cases).
The latency factor in crawl delay times is derived from the time that a target hosts takes to answer on http requests. For internet domains, the crawl delay is a minimum of twice the response time, in intranet cases the delay time is now a halve of the response time.
- added API to monitor the latency times of the crawler:
a new api at /api/latency_p.xml returns the current response times of domains, the time when the domain was accessed by the crawler the last time and many more attributes.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5733 6c8d7289-2bf4-0310-a012-ef5d649a1542
- after a index selection is made, the index is splitted into its vertical components
- from differrent index selctions the splitted components can be accumulated before they are placed into the transmission queue
- each splitted chunk gets its own transmission thread
- multiple transmission threads are started concurrently
- the process can be monitored with the blocking queue servlet
To implement that, a new package de.anomic.yacy.dht was created. Some old files have been removed.
The new index distribution model using a vertical DHT was implemented. An abstraction of this model
is implemented in the new dht package as interface. The freeworld network has now a configuration
of two vertial partitions; sixteen partitions are planned and will be configured if the process is bug-free.
This modification has three main targets:
- enhance the DHT transmission speed
- with a vertical DHT, a search will speed up. With two partitions, two times. With sixteen, sixteen times.
- the vertical DHT will apply a semi-dht for URLs, and peers will receive a fraction of the overall URLs they received before.
with two partitions, the fractions will be halve. With sixteen partitions, a 1/16 of the previous number of URLs.
BE CAREFULL, THIS IS A MAJOR CODE CHANGE, POSSIBLY FULL OF BUGS AND HARMFUL THINGS.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5586 6c8d7289-2bf4-0310-a012-ef5d649a1542
from the forum discussion in
http://forum.yacy-websuche.de/viewtopic.php?p=12612#p12612
The feature will provide two basic entities:
- you can integrate image links which point to your yacy installation anywhere in the web.
the image can be loaded with
<img src="http://<yourpeer>:<yourport>/cytag.png?icon=invisible&nick=<yournickname_or_community_id>&tag=<anything>">
This will place a invisible 1-pixel image. If you change the icon=invisible to icon=redpill, you will see a red pill
Use this, to track your activity in the web.
- you can view your tracks at
http://localhost:8080/Tracks.html
- There is a public api to your tracks at
http://localhost:8080/api/tracks_p.json
which needs authentication
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5581 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixes to httpd server response header generation
- fixes to a server date computation bug
- new Button in indexControl to view content of url in ViewFile
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5576 6c8d7289-2bf4-0310-a012-ef5d649a1542
the file server contains a patch that temporary matches all xml paths to api,
that means all interfaces still work. Please adopt all your interfaces to the new path.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5497 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added two new api files for document metadata:
- added a XHTML+RDFa html file shows the document metadata in a format that presents the data for rendering and for metadata retrieval. This is a typical document format for a semantic web data structure. the used RDF vocabulary is Dublin Core
- added a xml file that shows the same data as pure DC metadata
- integrated the API into the existing IndexControlURLs interface
With about one billion metadata files (URL metadata) this extension makes the freeworld YaCy network
to one of the probably largest metadata document provider for the semantic web!
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5490 6c8d7289-2bf4-0310-a012-ef5d649a1542
orbiter