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
- snippets are not fetched by browser using ajax, they are now fetched internally
- YaCy-internat threads control existence of snippets and sort out bad results
- search results are prepared using SSI includes
- the search result page is visible right after the search request, the results drop in when they are detected
- no more time-out strategy during search processes, results are shifted within queues when they arrive from remote peers
- added result page switching! after the first 10 results, the next page can be retrieved
- number of remote results is updated online on the result page as they drop in
- removed old snippet servelet (which had been also a security leak btw)
- media search is broken now, will be redesigned and fixed in another step
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4071 6c8d7289-2bf4-0310-a012-ef5d649a1542
some urls are fetched so the url cache can be filled with these urls
- the url-prefetch is used to sort out some unresolved urls
- the snippet-fetcher is triggered with the search event id. This is used
to remove missing snippets from the search cache so they will not be displayed again
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4060 6c8d7289-2bf4-0310-a012-ef5d649a1542
it is necessary for the new search process that will do automatic re-searches
a positive effect is, that when a re-search is done it can be monitored how many
results had been contributed from other peers. The message for this contribution
was moved from the end of the result page to the top.
* enhanced re-search time when a global search was done an the local index has
already a great number of results for this word
* re-organised presearch computation; must be further enhanced
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4059 6c8d7289-2bf4-0310-a012-ef5d649a1542
- re-designed remote request result processing
- re-designed local result accumulation, will be further enhanced with snippet fetcher
- removed search process handling in switchboad
- made snippet class static (there is no need for multiple snippet objects)
- removed some redundant tasks in server-side search process, should be a little bit faster now
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4043 6c8d7289-2bf4-0310-a012-ef5d649a1542
- cluster definitions can now contain an addition for local ip addresses
- cluster-cluster communication uses the local ip address instead the global address, if one is given
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3624 6c8d7289-2bf4-0310-a012-ef5d649a1542
- the network configuration page shows a new option: robinson clusters
- when a global search is made, all robinson peers are excluded, but:
- robinson peers/clusters that provide peer tags and where search words match
such tags, they are included in global search. Therefore, robinson peers/clusters
support the global yacy network with their indexes, without doin DHT-exchange
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3598 6c8d7289-2bf4-0310-a012-ef5d649a1542
http://www.yacy-forum.de/viewtopic.php?t=3854
This is a serious problem that is caused by the database bug between 0.511 - 0.513
which produced a large number of double-entries in the RWI index. The uniq()-method
tries to fix this, and it does not terminate when the index is large and the number
of double-occurrences is also large. This patch does simply implement a time-controlled
termination, which does not heal the inconsistency problem. The uniq-method itself
is correct and does not need a bugfix, the non-termination is simply caused by the large number
of data that is shifted during the process. It was possible to reproduce this behaviour
in a test environment.
A real fix would need to:
- enhance the uniq()-method by using a recursive, binary segmentation of the array to be fixed
- uniq() must report the entries that are double
- the double-entries must be deleted from the collection index (from the index and the collections) to heal the problem
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3583 6c8d7289-2bf4-0310-a012-ef5d649a1542
- exclusion on index-level (not only from search snippets)
- exclusion hand-over at remote search protocol
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3556 6c8d7289-2bf4-0310-a012-ef5d649a1542
- basic protection against start-up problems when database files are corrupted
- auto-delete of not-critical databases during startup when load error occurs
- on-the-fly reset option for all database tables
- automatic on-the-fly reset for seed tables during enumeration exceptions
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3547 6c8d7289-2bf4-0310-a012-ef5d649a1542
The new collection index will be more generalized to support other indexes
i.e. YBR block-rank computation. A clean-up of the many conditions to support
the old database was necessary.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3506 6c8d7289-2bf4-0310-a012-ef5d649a1542
- the general NURL-index for all crawl stack types was splitted into separate indexes for these stacks
- the new NURL-index is managed by the crawl balancer
- the crawl balancer does not need an internal index any more, it is replaced by the NURL-index
- the NURL.Entry was generalized and is now a new class plasmaCrawlEntry
- the new class plasmaCrawlEntry replaces also the preNURL.Entry class, and will also replace the switchboardEntry class in the future
- the new class plasmaCrawlEntry is more accurate for date entries (holds milliseconds) and can contain larger 'name' entries (anchor tag names)
- the EURL object was replaced by a new ZURL object, which is a container for the plasmaCrawlEntry and some tracking information
- the EURL index is now filled with ZURL objects
- a new index delegatedURL holds ZURL objects about plasmaCrawlEntry obects to track which url is handed over to other peers
- redesigned handling of plasmaCrawlEntry - handover, because there is no need any more to convert one entry object into another
- found and fixed numerous bugs in the context of crawl state handling
- fixed a serious bug in kelondroCache which caused that entries could not be removed
- fixed some bugs in online interface and adopted monitor output to new entry objects
- adopted yacy protocol to handle new delegatedURL entries
all old crawl queues will disappear after this update!
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3483 6c8d7289-2bf4-0310-a012-ef5d649a1542
- new search options on search page
- new option in ViewInfo to display all links of a file
- enhanced collection data structure
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3054 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed 'deleteComplete' flag; this was used especially for WORDS indexes
- shifted methods from plasmaSwitchboard to plasmaWordIndex
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3051 6c8d7289-2bf4-0310-a012-ef5d649a1542
to search procedure. This function can currently not used through the
search interface, but only through remote search.
added accumulation of search attributes to enable the audio, video,
image and application selection.
fixed a problem with external URL representation generation
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3036 6c8d7289-2bf4-0310-a012-ef5d649a1542
Such constraints may formulate specific restrictions to web searches
This is implemented by scraping information for constraints from a web
page during parsing, and storing flags to the pages within the web index.
In this first step, only information for index pages ("index of", directory listings)
are scraped and stored in flags
- added new flag class kelondroBitfield
- added scraper method in condenser
- added bitfield structure for all scrape types (see also condenser)
- added bitfield structure for appearance locations (see RWIEntry)
- added handover protocol for remote search and index distribution
- extended kelondroColumn class to hold bitfield types
- added another search attribute on search page (index.html)
- extended search-filter to enable filtering of non-matching constraints
- set all new database types to be default
- refactoring: moved word hash generation to condenser class
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2999 6c8d7289-2bf4-0310-a012-ef5d649a1542
- the test phase of the new collection data structure is finished
- test data that had been generated is void. There will be no migration
- the new collection files are located in DATA/INDEX/PUBLIC/TEXT/RICOLLECTION
- the index dump is void. There will be no migration
- the new index dump is in DATA/INDEX/PUBLIC/TEXT/RICACHE
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2983 6c8d7289-2bf4-0310-a012-ef5d649a1542
- moved all url and index(RWI) entries to index package
- better naming to distinguish RWI entries and URL entries
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2937 6c8d7289-2bf4-0310-a012-ef5d649a1542
- enhanced local domain detection
- bugfixing for memory assignment in kelondroFlexSplit
- automatic memory assignment to caches according to available RAM
- bugfixes for details during search process
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2924 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added test migration method to migrate the old LURL to a new LURL
the new LURL will be splitted into different tables for each month
this solves several problems:
- the biggest table in YaCy is splitted in different parts and can
also be managed in filesystems that are limited to 2GB
- the oldest entries can easily be identified, used for re-crawl und
deleted
- The complete database can be limited to a specific size (as wanted many times)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2755 6c8d7289-2bf4-0310-a012-ef5d649a1542
there are now two full-controlled caches for incoming indexes:
- dhtIn
- dhtOut
during indexing, all indexes that shall not be transported to remote peers
because they belong to the own peer are stored to dhtIn. It is furthermore
ensured that received indexes are not again transmitted to other peers
directly. They may, however be transmitted later if the network grows.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2574 6c8d7289-2bf4-0310-a012-ef5d649a1542
this is a set of search processes that shall enrich search results
with specialized requests to realize a combination of search results
from different peers.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2571 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added generation of a compressed index within remote peers during global search
- added selection of specific urls within remote peers during secondary global search
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2539 6c8d7289-2bf4-0310-a012-ef5d649a1542
* replaced indexTreeMapContainer by indexRowSetContainer
* deleted indexTreeMapContainer and abstract class
This is another step to the new database structure
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2343 6c8d7289-2bf4-0310-a012-ef5d649a1542
to store the index entry. This is another step to move to the new database structure.
A side effect of this change is, that index storage uses much less RAM space,
which affects the index RAM cache.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2341 6c8d7289-2bf4-0310-a012-ef5d649a1542
* mainly for the transition to the new indexing database structure
* a bugfix for an endless loop inside kelondroTree iteration
* a bugfix for bulk read inside a kelondroTree iteration; the bug caused that some elements had been iterated twice
* very strong speed enhancement for url/domain extraction
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2320 6c8d7289-2bf4-0310-a012-ef5d649a1542
* added ranking coefficient transmission to remote peer (without evaluation on server side, will be added later)
* changed ranking coefficients slightly
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1770 6c8d7289-2bf4-0310-a012-ef5d649a1542
- replaced usage of temporary IndexEntity by EntryContainer
- added more attributes to word index
- added exact-string search (using quotes in query)
- disabled writing into WORDS during search; EntryContainers are used instead
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1485 6c8d7289-2bf4-0310-a012-ef5d649a1542
- implemented hand-over of new word index attributes during remote search
- implemented word-distance computation during search
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@1382 6c8d7289-2bf4-0310-a012-ef5d649a1542
orbiter