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 is the start of a testing phase for IndexCell data structure which will replace
the collections and caching strategy. IndexCall creation and maintenance is fast, has
no caching overhead, very low IO load and is the basis for the next data structure,
index segments.
IndexCell files are stored at DATA/<network>/TEXT/RICELL
With this commit still the old data structures are used, until a flag in yacy.conf is set.
To switch to the new data structure, set
useCell = true
in yacy.conf. Then you will have no access any more to TEXT/RICACHE and TEXT/RICOLLECTION
This code is still bleeding-edge development. Please do not use the new data structure for
production now. Future versions may have changed data types, or other storage locations.
The next main release will have a migration feature for old data structures.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5724 6c8d7289-2bf4-0310-a012-ef5d649a1542
to use this, you must user the -incollection command before (see SVN 5687) and you need a
used.dump file that has been produced with that process.
Now you can use that file, to do a URL-hash compare with the urls in the URL-DB. To do that, execute
java -Xmx1000m -cp classes de.anomic.data.URLAnalysis -diffurlcol DATA/INDEX/freeworld/TEXT used.dump diffurlcol.dump
or use different names for the dump files or more memory.
As a result, you get the file diffurlcol.dump which contains all the url hashes that occur in the URL database, but not in the collections.
The file has the format
{hash-12}*
that means: 12 byte long hashes are listed without any separation.
The next step could be to process this file and delete all these URLs with the computed hashes, or to export them before deletion.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5692 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 configuration option to set the pop up page in Config Appearance
- added a minimized header option to yacyinteractive
- fixed a bug in yacysearch: default values when no query is done
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5569 6c8d7289-2bf4-0310-a012-ef5d649a1542
- applied knowledge about concurrent files stream reading and index processing from the wikimedia reader
to the EcoTable initialization process: the file reader is now concurrent to the index generation
- changed also some initialization processes to avoid some pauses during initialization
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5354 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
with index.storeCommons=false all currently stored commons are deleted!
Default is now 'true', but in future full releases it will be switched to 'false'
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5315 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
- removed unnecessary code (unused variables, String.toString)
- corrected some calculations (cast int to double or long ;)
- improved little performance (using Integer.valueOf() instead of new Integer)
- log if some File-actions fail (mkdir(), delete(), ...) and some ignored exceptions
- finalized some (more) fields
- finally close some streams
- made inner classes static if not using environment
- generalized some equals (from specificClass to Object)
- fixed some potential nullpointer accesses
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5039 6c8d7289-2bf4-0310-a012-ef5d649a1542
- moved constants from plasmaSwitchboard to own class (all 232 ;)
- moved remoteProxy-Methods to httpRemoteProxyConfig, better names
- removed some unnecessary code (else-statements)
* formatting (correct indentation)
* minor bugfixes (due to findbugs.sf.net)
* hopefully fixed "missing quote" (announcing StringParts as UTF-8)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5031 6c8d7289-2bf4-0310-a012-ef5d649a1542
the most important fix was the addition of the yacybot user-agent for robots.txt loading,
because web masters look for that access to see if the crawler behaves correctly.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4968 6c8d7289-2bf4-0310-a012-ef5d649a1542
- some more/better asserts
- slight performance enhancements in remove method in index management. Works for all who do not run using asserts (the majority)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4928 6c8d7289-2bf4-0310-a012-ef5d649a1542
find a better way to store BLOBs; generalize current BLOG data structure (kelondroDyn)
and prepare it to replace it with something better. The best candidate is the kelondroHeap,
which will become the kelondroBLOBHeap;
removed also some never-used classes
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4902 6c8d7289-2bf4-0310-a012-ef5d649a1542
This change is inspired by the need to see a network connected to the index it creates in a indexing team.
It is not possible to divide the network and the index. Therefore all control files for the network was moved to the network within the INDEX/<network-name> subfolder.
The remaining YACYDB is superfluous and can be deleted.
The yacyDB and yacyNews data structures are now part of plasmaWordIndex. Therefore all methods, using static access to yacySeedDB had to be rewritten. A special problem had been all the port forwarding methods which had been tightly mixed with seed construction. It was not possible to move the port forwarding functions to the place, meaning and usage of plasmaWordIndex. Therefore the port forwarding had been deleted (I guess nobody used it and it can be simulated by methods outside of YaCy).
The mySeed.txt is automatically moved to the current network position. A new effect causes that every network will create a different local seed file, which is ok, since the seed identifies the peer only against the network (it is the purpose of the seed hash to give a peer a location within the DHT).
No other functional change has been made. The next steps to enable network switcing are:
- shift of crawler tables from PLASMADB into the network (crawls are also network-specific)
- possibly shift of plasmaWordIndex code into yacy package (index management is network-specific)
- servlet to switch networks
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4765 6c8d7289-2bf4-0310-a012-ef5d649a1542
