- removed migration code
- removed BLOBTree
after the removal of the BLOBTree, a lot of dead code appeared:
- removed dead code that was needed for BLOBTree
Some more classes may have not much use any more after the removal of BLOBTree, but still have some component that are needed elsewhere. Additional Refactoring steps are needed to clean up dependencies and then more code may appear that is unused and can be removed as well.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6150 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
- added a analysis method that counts bytes that could be saved in case the new HandleMap can be applied in the most efficient way. Look for the log messages beginning with "HeapReader saturation": in most cases we could save about 30% RAM!
- removed the old FlexTable database structure. It was not used any more.
- removed memory statistics in PerformanceMemory about flex tables and node caches (node caches were used by Tree Tables, which are also not used any more)
- add a stub for a steering of navigation functions. That should help to switch off naviagtion computation in cases where it is not demanded by a client
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6034 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
This removes the last very IO-intensive data structures which were still used for Wiki, Blog and Bookmarks. Old database files will still remain in the DATA subdirectory but can be deleted manually if no major bugs appear during migration. There is no need for any user action, all migration is done automatically.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5986 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
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
- 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
- introduced blocking queues in CrawlStacker to make it ready for concurrency
- added a second busy thread for the CrawlStacker
The CrawlStacker is multithreaded. It shall be transformed into a BlockingThread in another step.
The concurrency of the stacker will hopefully solve some problems with cases where DNS blocks.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5395 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed never-used secondary crawl depth
- added a must-not-match filter that can be used to exclude urls from a crawl
- added stub for crawl tags which will be used to identify search results that had been produced from specific crawls
please update the yacybar: replace property name 'crawlFilter' with 'mustmatch'.
Additionally, a new parameter named 'mustnotmatch' can be used, which should be by default the empty sring (match-never)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5342 6c8d7289-2bf4-0310-a012-ef5d649a1542
- dates are now saved as String.valueOf(TimeStamp)
- it might be a good idea to delete (backup) bookmarkDates.db and restart YaCy to rebuild it
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5066 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
- the serverBusyThread checks folders every 60 min. (==> autoReCrawl_idlesleep in yacy.conf)
- added option to create bookmarks from CrawlStart URL
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5033 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
many classes used the kelondroMapDataMining (was: kelondroMapObjects) which adds statistical
functions to the kelondroMap (was: kelondroObjects), but these functions were not used by these
classes. Especially the HTCACHE and robots.txt database allocate a very large number of objects
for statistical use, but never used them. By replacing the kelondroMapDataMining with the
kelondroMap object for these classes now less memory is allocated.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4986 6c8d7289-2bf4-0310-a012-ef5d649a1542
orbiter