This is a major change in the organization of indexes.
Please consider a back-up of your data before you run this update.
All existing index files will be moved and renamed to a new position.
With this change, it will be possible to maintain different indexes for different purposes and it will be possible to have a distinction between DHT-in and DHT-out specific indexes. Tenants may also have their own index, and it may be possible to have histories and back-ups of indexes. This is just the beginning, many servlets must be adopted after this change, but all functions that had been there should still work.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6389 6c8d7289-2bf4-0310-a012-ef5d649a1542
- speed up deletion of containers when selscted from whole index
- correctly eliminate all references to unavailable URLs, not just the first encountered
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6381 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixes for numerous other problems
- removed dead code
- resdesign of the strings-method, which produces now less memory overhead and may help to prevent OOMs
- another fix for the deadlock problem in SplitTable
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6373 6c8d7289-2bf4-0310-a012-ef5d649a1542
to make this possible, the yacyURL must be able to process file:// urls, which has also been implemented
testing of the new class resulted in some bugfixes in other classes
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6313 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed the plasma package. The name of that package came from a very early pre-version of YaCy, even before YaCy was named AnomicHTTPProxy. The Proxy project introduced search for cache contents using class files that had been developed during the plasma project. Information from 2002 about plasma can be found here:
http://web.archive.org/web/20020802110827/http://anomic.de/AnomicPlasma/index.html
We stil have one class that comes mostly unchanged from the plasma project, the Condenser class. But this is now part of the document package and all other classes in the plasma package can be assigned to other packages.
- cleaned up the http package: better structure of that class and clean isolation of server and client classes. The old HTCache becomes part of the client sub-package of http.
- because the plasmaSwitchboard is now part of the search package all servlets had to be touched to declare a different package source.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6232 6c8d7289-2bf4-0310-a012-ef5d649a1542
- The indexing queue was a historic data structure that was introduced at the very beginning at the project as a part of the switchboard organisation object structure. Without the indexing queue the switchboard queue becomes also superfluous. It has been removed as well.
- Removing the switchboard queue requires that all servlets are called without a opaque generic ('<?>'). That caused that all serlets had to be modified.
- Many servlets displayed the indexing queue or the size of that queue. In the past months the indexer was so fast that mostly the indexing queue appeared empty, so there was no use of it any more. Because the queue has been removed, the display in the servlets had also to be removed.
- The surrogate work task had been a part of the indexing queue control structure. Without the indexing queue the surrogates needed its own task management. That has been integrated here.
- Because the indexing queue had a special queue entry object and properties attached to this object, the propterties had to be moved to the queue entry object which is part of the new indexing queue withing the blocking queue, the Response Object. That object has now also the new properties of the removed indexing queue entry object.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6225 6c8d7289-2bf4-0310-a012-ef5d649a1542
* autoupdate completely disabled, display hint
* restart-button in interface works!
* moved all build-Variables to yacyBuildProperties
* fixed some warnings
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6195 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added new Stack class that implements a stack on BLOB files
- added new Stacks class that can be used for a set of Stacks (a 'Stack Database')
- added methods to other classes to support the new stacks
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6169 6c8d7289-2bf4-0310-a012-ef5d649a1542
removed libx directory
all libraries are now in lib, instead the test libraries in libt which are not part of releases
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6157 6c8d7289-2bf4-0310-a012-ef5d649a1542
high-performance search query situations as seen in yacy-metager integration showed deadlock situation caused by synchronization effects inside of sun.java code. It appears that the logger is not completely safe against deadlock situations in concurrent calls of the logger. One possible solution would be a outside-synchronization with 'synchronized' statements, but that would further apply blocking on all high-efficient methods that call the logger. It is much better to do a non-blocking hand-over of logging lines and work off log entries with a concurrent log writer. This also disconnects IO operations from logging, which can also cause IO operation when a log is written to a file. This commit not only moves the logger from kelondro to yacy.logging, it also inserts the concurrency methods to realize non-blocking logging.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6078 6c8d7289-2bf4-0310-a012-ef5d649a1542
topics will now only be computed using the document title, not the document url,
because the host navigator is now responsible for statistical effects of urls.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6011 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixed too early computation of navigation
- moved navigation rendering to yacysearchtrailer
- added more asserts
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6006 6c8d7289-2bf4-0310-a012-ef5d649a1542
- moved some servlets from here to there..
- changed menu structure
- removed yacyui-portaltest.html which contained an example for the live search which is now integrated on all pages in yacy. The code snippet example from that page is integrated into the ConfigLiveSearch.html servlet
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5994 6c8d7289-2bf4-0310-a012-ef5d649a1542
divided that class into three parts:
- the peers object is now hosted by the plasmaSwitchboard
- the crawler elements are now in a new class, crawler.CrawlerSwitchboard
- the index elements are core of the new segment data structure, which is a bundle of different indexes for the full text and (in the future) navigation indexes and the metadata store. The new class is now in kelondro.text.Segment
The refactoring is inspired by the roadmap to create index segments, the option to host different indexes on one peer.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5990 6c8d7289-2bf4-0310-a012-ef5d649a1542
- refactoring: migrated data objects for the new connector classes
- added a DAO interface class to specify an abstract interface for database retrieval connector methods
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5977 6c8d7289-2bf4-0310-a012-ef5d649a1542
- after a search is started, it is analysed how many hits are in each site
- this can be done really efficient, because the navigation information is hidden in the url hash and can be computed very fast
- the search result shows a column on the right with the hosts and the hits per host
- after a click on a host the search is modified using the efficient site: - operator
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5976 6c8d7289-2bf4-0310-a012-ef5d649a1542
- rejecting peers that are older than 6 hours (not-seen during 6 hours)
- 0.78, targeting 0.8 at the end of the week
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5948 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added some debugging output to balancer to find a bug
- removed unused classes for index collection handling
- changed some default values for the process handling: more memory needed to prevent OOM
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5856 6c8d7289-2bf4-0310-a012-ef5d649a1542
as long as there aren't publickeys for the updatelocations set,
no signatures are checked
* wiki-article follows...
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5822 6c8d7289-2bf4-0310-a012-ef5d649a1542
terms (words) are not any more retrieved by their word hash string, but by a byte[] containing the word hash.
this has strong advantages when RWIs are sorted in the ReferenceContainer Cache and compared with the sun.java TreeMap method, which needed getBytes() and new String() transformations before.
Many thousands of such conversions are now omitted every second, which increases the indexing speed by a factor of two.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5812 6c8d7289-2bf4-0310-a012-ef5d649a1542
- during index joins all word positions are maintained: better ranking for word distance possible; exact phrase match can be implemented soundly
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5804 6c8d7289-2bf4-0310-a012-ef5d649a1542
This is a preparation to introduce other index tables as used now only for reverse text indexes. Next application of the reverse index is a citation index.
Moved to version 0.74
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5777 6c8d7289-2bf4-0310-a012-ef5d649a1542
this option was never used and there is also no use to set other columns but the first as the primary key. as a result, access methods to the key do not need to compute key positions, and they work faster.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5711 6c8d7289-2bf4-0310-a012-ef5d649a1542
Java standard classes provide a Map Interface, that has a put() method that returns the object that was replaced by the object that was the argument of the put call. The kelondro ObjectIndex defined a put method in the same way, that means it also returned the previous value of the Entry object before the put call. However, this value was not used by the calling code in the most cases. Omitting a return of the previous value would cause some performance benefit. This change implements a put method that does not return the previous value to reflect the common use. Omitting the return of previous values will cause some benefit in performance. The functionality to get the previous value is still maintained, and provided with a new 'replace' method.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5700 6c8d7289-2bf4-0310-a012-ef5d649a1542
without an order by the primary key. The result is a very fast enumeration of the Eco table data structure. Other table data types are not affected.
The new enumerator is used for the url export function that can be accessed from the online interface (Index Administration -> URL References -> Export). This export should now be much faster, if all url database files are from type Eco
The new enumeration is also used at other functions in YaCy, i.e. the initialization of the crawl balancer and the initialization of YaCy News.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5647 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
- added a write buffer to BLOBHeap
- modified the BLOBBuffer (is now only to buffer non-compressed content)
- added content compression to the HTCache
The new read cache will decrease the start/initialization time of BLOB files,
like the HTCache, RobotsTxt and other BLOBHeap structures.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5386 6c8d7289-2bf4-0310-a012-ef5d649a1542
- implemented vertical DHT acceptance ("my own DHT") to accept new targets
- added new target computation for global search: addresses vertical targets also
- enhanced remote crawling: collection of remote crawl urls if queue has less than 100 entries (was: 0 entries)
- better performance value computations for PPM selection in network configuration
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5319 6c8d7289-2bf4-0310-a012-ef5d649a1542
- two different computations (but mathematical equivalent) of the DHT distance had been consolidated
- moved from 0.0 .. 1.0 double-range position computation to 0 .. Long.Max range for DHT targets
- added fast Long - to - hash computation
- high-precision target computation of gaps for new peers
- added new target computation for horizontal and vertical DHT targets (not yet in use)
- old horizontal-only DHT targets will be upwards compatible to new horizontal and vertical DHT positions
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5318 6c8d7289-2bf4-0310-a012-ef5d649a1542
- metadata and results from statistical analysis are compared and result is printed out as debug lines
- added ranking profile for wanted language
- added class with ISO 639 table, a list of all valid country codes that will be used for the language identification
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5187 6c8d7289-2bf4-0310-a012-ef5d649a1542
http://forum.yacy-websuche.de/viewtopic.php?p=8130#p8130
- removed the online status property. This influenced the proxy behavior and created some complexity that was not needed because the online status was never used as it was ceated for (offline browsing)
- checked all proxy identification procedures during crawling and enhanced transparency and error checking
- fixed a proxy identification routine that caused the wrong selection of the proxy result queue
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5173 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added automatic time delay in case that a large number of urls come from the same domain
- added additional time delay in case that an url is a dynamic (CGI) url. This shall cause less IO on targets
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5128 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added 'delete all' button to all results of such a domain statistic output which causes that all urls to this domain are deleted
- extended stack cleaner to clean also the statistics: they are not completely destroyed, only the smallest counting domains are removed
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5117 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed distinction between header file types for http and ftp; ftp is simulated by using http properties
- removed all old resourceInfo classes that handled this distinction
- introduced a new distinction between http request and http response objects
- unified new response objects with two other object types that had been introduced elsewhere
- changed all servlet call methods to use the new http request header object type
- divided static object keys for http header properties into request and response types
- refactoring here and there (a large number of type changes and many methods merged/moved)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5079 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixed "Inefficient use of keySet iterator instead of entrySet iterator" [WMI_WRONG_MAP_ITERATOR, FindBugs]
- fixed some possible null pointer accesses
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5063 6c8d7289-2bf4-0310-a012-ef5d649a1542
orbiter