moved http date methods from DateFormatter to HeaderFramework
changed logging to log4j
- added ftp load access to MultiProtocolURI
- ensured termination of RSS feed iteration
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7067 6c8d7289-2bf4-0310-a012-ef5d649a1542
- the scheduler extends the option for re-crawl timing. Many people misunderstood the re-crawl timing feature because that was just a criteria for the url double-check and not a scheduler. Now the scheduler setting is combined with the re-crawl setting and people will have the choice between no re-crawl, re-crawl as was possible so far and a scheduled re-crawl. The 'classic' re-crawl time is set automatically when the scheduling function is selected
- removed the bookmark-based scheduler. This scheduler was not able to transport all attributes of a crawl start and did therefore not support special crawling starts i.e. for forums and wikis
- since the old scheduler was not aber to crawl special forums and wikis, the must-not-match filter was statically fixed to all bad pages for these special use cases. Since the new scheduler can handle these filters, it is possible to remove the default settings for the filters
- removed the busy thread that was used to trigger the bookmark-based scheduler
- removed the crontab for the bookmark-based scheduler
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7051 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added new network definition 'allip' which can be used in networks where intranet and internet-addresses shall be indexed
- added a auto-switch-off for global search if there are no global peers
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7030 6c8d7289-2bf4-0310-a012-ef5d649a1542
- confirm that database objects that are not supposed to grow do not have a index memory management that is designed for growth
- changed index sorting method in such a way that it allocates less objects during quicksort
- database classes classes renaming (shorter, naming addresses that objects hold in RAM)
- added a large number of asserts to check if objects actually take the RAM that they should have
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7019 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added statistics about database index caches in PerformanceMemory_p.html
- adoped many classes to use the new statistics
- added missing close statements
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7018 6c8d7289-2bf4-0310-a012-ef5d649a1542
some file types are containers for several files. These containers had been parsed in such a way that the set of resulting parsed content was merged into one single document before parsing. Using this parser infrastructure it is not possible to parse document containers that contain individual files. An example is a rss file where the rss messages can be treated as individual documents with their own url reference. Another example is a surrogate file which was treated with a special operation outside of the parser infrastructure.
This commit introduces a redesigned parser interface and a new abstract parser implementation. The new parser interface has now only one entry point and returns always a set of parsed documents. In case of single documents the parser method returns a set of one documents.
To be compliant with the new interface, the zip and tar parser had been also completely redesigned. All parsers are now much more simple and cleaner in its structure. The switchboard operations had been extended to operate with sets of parsed files, not single parsed files.
additionally, parsing of jar manifest files had been added.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6955 6c8d7289-2bf4-0310-a012-ef5d649a1542
see http://www.gnu.org/licenses/license-list.html for explanation
Since (as far as I know) nobody else has ever contributed to these files I may be allowed to just apply an older license.
You may consider this as a dual-licensing and may use and optionally replicate the older files under GPL 3.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6952 6c8d7289-2bf4-0310-a012-ef5d649a1542
- found and fixed a possible memory leak in YaCy internal RSS feed system
- some refactoring in RSS feed mechanisms to make this possible
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6950 6c8d7289-2bf4-0310-a012-ef5d649a1542
Here a new concept called 'search heuristics' is introduced. A heuristic is a kind of 'shortcut' to good results in IT, here for good search results. In this case it will be used to get a very transparent way to compare what YaCy is able to produce as search result and what g**gle produces as search result. Here is what your can do now:
- add the phrase 'heuristic:scroogle' to your search query, like 'oil spill heuristic:scroogle' and then a call to scroogle is made to get anonymous search results from g**gle.
- these results are _not_ taken as meta-search results, but are used to instantly feed a crawling and indexing process. This happens very fast, here 20 results from scroogle are taken and loaded all simultanously, parsed and indexed immediately and from the results of the parsed content the search result is feeded, along to the normal p2p search
- when new results from that heuristic (more to come) get part of the search results, then it is verified if such results are redundant to existing (they had been part of the normal YaCy search result anyway) or if they had been completely new to YaCy.
- in the search results the new search results from heuristics are marked with a 'H ++' and search results from heuristics that had been already found by YaCy are marked with a 'H ='. That means:
- you can now see YaCy and Scroogle search results in one result page but you also see that you would not have 'missed' the g**gle results when you would only have used YaCy.
- to make it short: YaCy now subsumes g**gle results. If you use only YaCy, you miss nothing.
to come: a configuration page that let you configure the usage of heuristics and get this feature by default.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6944 6c8d7289-2bf4-0310-a012-ef5d649a1542
a cache access shall not made directly to the cache any more, all loading attempts shall use the LoaderDispatcher.
To control the usage of the cache, a enum instance from CrawlProfile.CacheStrategy shall be used.
Some direct loading methods without the usage of a cache strategy have been removed. This affects also the verify-option
of the yacysearch servlet. If there is a 'verify=false' now after this commit this does not necessarily mean that no snippets
are generated. Instead, all snippets that can be retrieved using the cache only are presented. This still means that the search hit was not verified because the snippet was generated using the cache. If a cache-based generation of snippets is not possible, then the verify=false causes that the link is not rejected.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6936 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed concurrency overhead for small number of index normalizations as it happens during remote search
- removed 'load only parseable' constraint for snippet fetch because some resources may not have any url file extension and these had therefore not been parseable and searcheable since they may become parseable after loading when their mime type is known
- this partly fixes some problems with http://forum.yacy-websuche.de/viewtopic.php?p=20300#p20300 but more changes are necessary to get all expected search results
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6926 6c8d7289-2bf4-0310-a012-ef5d649a1542
- crawl lists for each domain now uses a HandleSet which should use less memory than LinkedLists
- but: fill more entries into the domain lists (all available entries)
- fixes to selection criteria (best domain selection)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6909 6c8d7289-2bf4-0310-a012-ef5d649a1542
- it is now possible to crawl the local file system with an intranet peer
- redesign of URL handling
- refactoring: created LGPLed package cora: 'content retrieval api' which may be used externally by other applications without yacy core elements because it has no dependencies to other parts of yacy
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6902 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fix for initial generation of crawl profiles (one more reason to remove your crawl profiles)
- more String -> byte[] migration
- more logging for cache store/hit
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6874 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixes to http file server session handling
- fixes and enhancements to metadata date/time handling
- added dc:publisher metadata field and updated all document parser
- fixed bug in metdata read procedure
- enhanced dublin core and rss parser to understand more fields more properly
- enhanced url selection in case that multiple urls are given in surrogates
- fix for condenser; failure when last word does not end with termination symbol
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6863 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added crawling queue sizes to /api/status_p.xml, syntax same as in queues_p.html
- fixed a bug in queue enumeration that caused a out of bounds exception
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6842 6c8d7289-2bf4-0310-a012-ef5d649a1542
http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/memleaks.html#gbyvh
The finalize method prevents that the memory, used by the objects containing the finalize method, is collected and available for the garbage collector. Instead, the memory allocated by such classes are enqueued to a java-internal finalize queue runner. This slows down all operations that uses a lot of object containing finalize methods.
this fix does not remove all finalize method, but such that may be used for throw-away objects that are allocated many times. This should cause a better run-time performance and less OutOfMemoryErrors
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6835 6c8d7289-2bf4-0310-a012-ef5d649a1542
for such cases the delete() operation was introduced which is sometimes much cheaper in operation since it does not need to create objects to hold the removed content and it does not need to read those objects.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6824 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed usage of URL-Caches which could have been a memory leak
- removed unused classes and methods
- removed not necessary synchronizations
- added synchronization hacks where possible
- fine-tuned crawling speed to prevent IO of balancer
- fixed a bug in IODispatcher that may have caused that no merges were done
- reduced number of parameters in very often called methods (compare methods)
- reduced complexity of data structures of now massively used HandleSet class
- reduction of new String() and getBytes() usage / new methods to support this transition
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6820 6c8d7289-2bf4-0310-a012-ef5d649a1542
- enhanced the Balancer performance when building new domain stacks using a new Table buffer
- added the new Table buffer BufferedObjectIndex class
- changed order of access to LURL-read (prefereing segment over Crawl Queues) will reduced blocking time on balancer
- fixed PPM setting in Crawler_p servlet (had doubled values)
- reduced synchronization in IndexCell because it is not necessary: reduced blocking during indexing/merging/dumping
- removed did-you-mean cache in IndexCell because that caused too much overhead and more memory usage but was not very useful. This reduced also deadlocks that could be causes when searched are performed during indexing.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6819 6c8d7289-2bf4-0310-a012-ef5d649a1542
The result should be a less usage of new String() and less memory usage (since a String-encapsulated byte[] has 40 bytes overhead)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6815 6c8d7289-2bf4-0310-a012-ef5d649a1542
pass value as byte[], not as String. This should cause that less
byte[] <-> String conversions are made during time-critical tasks.
This redesign is not yet complete, more to come ..
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6775 6c8d7289-2bf4-0310-a012-ef5d649a1542
- moved storage of robots.txt entries to WorkTables, so it is now possible to browse the robots entries with the table browser
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6710 6c8d7289-2bf4-0310-a012-ef5d649a1542
all operations on YaCy in a database that should make it possible
1) to re-create a setting on fresh peers
2) to transmit a setting from one peer to another
3) to re-create crawl starts after a complete deletion of the index
This functionality will also support
4) scheduled re-crawls (new implementation)
To implement this, a new database structure has been crated that stores maps into blob heaps. to encode maps the b-encoding technique was used (this is the same encoding that torrent files use)
- added a b-encoder
- enhanced the b-decoder
- added a b-encoded map heap data structure
- added a table organisation based on b-encoded heaps
- added a servlet to maintain such tables (see Tables_p.html)
- integrated the servlet into the Advanced Settings menu
- added an api recording based on the new tables
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6606 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added BEncodedHeap class that encodes B data structures and stores that to a heap
- refactoring of MapView, this is now named MapHeap to fit into the naming scheme of the BEncodedHeap
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6579 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added 'yacybot' as key to recognize robots.txt entries for YaCy
- removed unused method to get robots.txt from database
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6565 6c8d7289-2bf4-0310-a012-ef5d649a1542
- moved all index generation servlets to it's own main menu item, including proxy indexing
- removed external index import because this operation is not recommended any more. Joining an index can simply be done by moving the index files from one peer to the other peer; they will be merged automatically
- fix to prevent endless loops when disconnecting http sessions
- fix to prevent application of bad blacklist entries that can cause a 'Dangling meta character' exception
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6558 6c8d7289-2bf4-0310-a012-ef5d649a1542
memory.acceptDHT in kbytes
not yet pre-enabled, will clear on every startup
please review since this could break dht in freeworld
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6459 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added many stack trace outputs for exceptions in crawl profile handler to find the 'missing profile handle' bug
- catched one more timeout exception in httpd file loader
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6457 6c8d7289-2bf4-0310-a012-ef5d649a1542
- extended the OAI-PMH test applet and integrated it into the menu. Does still not import OAI-PMH records, but shows that it is able to read and parse this data
- some redesign in ZURL storage: refactoring of access methods, better concurrency, less synchronization
- added a limitation to the LURL metadata database table cache to 20 million entries: this cache was until now not limited and only limited by the available RAM which may have caused a memory-leak-like behavior.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6440 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fix for image parser
- temporary integration of images as document types in the crawler and indexer for testing of the image parser
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6435 6c8d7289-2bf4-0310-a012-ef5d649a1542
