You can toggle between previous (standard) and new (generation) strategy at PerformanceMemory_p.html.
The generation memory strategy is implemented with the objective of running more robust
but with the cost of early stopping some tasks (eg. dht) while running low on memory.
This new strategy does respect the generational way a heap is organized on most used jvms.
These changes run fine on my 3 peers for weeks now, but as I'm human, I may fail.
Please be carefull using generation memory strategy and report errors by naming
OS, jvm and java_args.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7886 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added a button in PerformanceMemory_p.html to set the simulated short memory status
- bugfix: added a missing lowercase in KeyList
- better concurrency in loader dispatcher
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7883 6c8d7289-2bf4-0310-a012-ef5d649a1542
I wondered getting Total-ram > Max-ram and MemoryControl.available() < 0
MemoryControl.available() < 0 causes some errors where its value is used for dimension of buffers for eg.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7852 6c8d7289-2bf4-0310-a012-ef5d649a1542
java.lang.NullPointerException
at net.yacy.kelondro.index.RowCollection.<init>(RowCollection.java:97)
at net.yacy.kelondro.index.RowSet.<init>(RowSet.java:48)
at net.yacy.kelondro.rwi.ReferenceContainer.<init>(ReferenceContainer.java:58)
at net.yacy.kelondro.rwi.ReferenceIterator.next(ReferenceIterator.java:69)
at net.yacy.kelondro.rwi.ReferenceIterator.next(ReferenceIterator.java:43)
at net.yacy.kelondro.blob.ArrayStack.merge(ArrayStack.java:1023)
at net.yacy.kelondro.blob.ArrayStack.mergeWorker(ArrayStack.java:922)
at net.yacy.kelondro.blob.ArrayStack.mergeMount(ArrayStack.java:869)
at net.yacy.kelondro.rwi.IODispatcher$MergeJob.merge(IODispatcher.java:267)
at net.yacy.kelondro.rwi.IODispatcher$MergeJob.access$300(IODispatcher.java:239)
at net.yacy.kelondro.rwi.IODispatcher.run(IODispatcher.java:180)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7822 6c8d7289-2bf4-0310-a012-ef5d649a1542
- forced a possible short memory status when a search is started to flush caches that may cause search-heaps with resource contention effects
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7747 6c8d7289-2bf4-0310-a012-ef5d649a1542
used a ASCII String <-> byte[] conversion wherever possible. Many Strings in YaCy are hashes which are pure ASCII (base64 hashes).
The new ASCII String <-> byte[] conversion method have less computation overhead than the UTF8 conversion.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7746 6c8d7289-2bf4-0310-a012-ef5d649a1542
- many speed/performance hacks
- added solr charding and new charding web interface
- added option to switch off the yacy index when using solr
- added new fail-url categories which are used to make a distinction which fail-urls to be sent to solr
- refactoring/renaming of some method names to distinguish host/url hashes better
- a large number of bug/npe fixes
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7738 6c8d7289-2bf4-0310-a012-ef5d649a1542
- cleaned up (removed special code and documentation for 27c3)
- added remote search functions to be used within cora
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7420 6c8d7289-2bf4-0310-a012-ef5d649a1542
- integrated new parser into loader processes: enrich document parser
- fixed a concurrent modification exception in kelondro iterator
- hand-over of document size from crawler to indexer
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7374 6c8d7289-2bf4-0310-a012-ef5d649a1542
this was never used and extended in the last years. The resulting YBR ranking criteria
is still a good idea and will be used in the future. Possible generation methods for YBR
ranking are:
- "trust-rank" using the link structure as can be discovered in a single crawl (idea from FSCONS)
- "block-rank" calculated from the local link structure
- a distributed "block-rank" using the xml API to the link structure from other peers
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7349 6c8d7289-2bf4-0310-a012-ef5d649a1542
created a WeakPriorityBlockingQueue as special implementation
of a PriorityBlockingQueue with a weak object binding.
- better abstraction of ordering technique
- fixed some bugs according to result numbering (distinguish different counters in Queue)
- fixed a ordering bug in post-ranking (ordering was decreased instead of increased)
- reversed ordering numbering using a reversed ordering. The higher the ranking number the better (now).
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7128 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added some clear statements that shall clear static cache size within the pdfbox library
- the pdfbox library contains a memory leak; it is unsafe to run a peer with pdf parser permanently on.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7120 6c8d7289-2bf4-0310-a012-ef5d649a1542
with this fix search results are (even) faster.
Also enhanced: image search. This is now speeded up using a image search result look-ahead
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7105 6c8d7289-2bf4-0310-a012-ef5d649a1542
- move the header framework classes to cora
- move the ARC caching classes to cora
- refactoring of code to call these classes from cora
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7068 6c8d7289-2bf4-0310-a012-ef5d649a1542
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
- every process that is monitored with the API Steering interface can now be scheduled!
- added input methods in Steering interface to set a scheduling time
- added a view on the steering api that shows only crawl jobs inside the Crawl Profile servlet
- added a scheduling call process in the cleanup process handler that triggers the scheduled processes
This causes that the cleanup now also looks for scheduled processes. Such processes are therefore not executed at
the same time as given in the target execution time but they will be executed within the cleanup process time window.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7050 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added recording date, last execution date and next execution date for a scheduler (scheduler to be implemented next)
- extended database access methods for more data formats, especially for date insert/retrieval
- extended 'Steering' interface to show new database fields
- migrated Steering to new http client
- extended cora http client to transmit authentication and also added some convenience methods (http response code)
- simplified database back-end (not so much specialized methods for multiple properties)
- extended date formatter to produce a special format to show dates in html ( in spaces of date format)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7049 6c8d7289-2bf4-0310-a012-ef5d649a1542
Added @Deprecated for deprecated functions getIPDevices and getPPPDevices in class InternetGatewayDevice
Changed debug statement in Domains.java and corrected filename in comments header
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6993 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
- cleaned uo the code. The new eclipse helios provided new warnings for dead code. This change cleans up most of these warnings
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6945 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
- 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
- now importing OAI-PMH server list fron two sources
- simultanous import from several servers (even > 2000)
- check buttons on OAI-PMH server list to select multiple servers for import start
- it is possible to select all servers at once for import
- imported XML data is gzipped after import from surrogate reader
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6847 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
- 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
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
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
- increased sort limit, now 3000 entries, before: 1000
this should cause that more results can be shown in case
of strong limitating constraints, like domain navigation
- enhanced the sort process
- check against domain navigator bugs
- fix in sort stack
- showing now all naviagtion pages at first search (not only next page)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6569 6c8d7289-2bf4-0310-a012-ef5d649a1542
- some refactoring in search process
- fixed image search for json and rss output
- search navigation on bottom of search result page in cases where there are more than 6 results on page
- fixes for number of displayed documents
- disabled pseudostemming
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6504 6c8d7289-2bf4-0310-a012-ef5d649a1542
- fixes for bad equals() methods that had not been used by hash maps and therefore some classes did not work as objects in hash maps.
- this may also affect some cases where double-checks should have been, but did not work.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6495 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
- some documentation fixes
- adopted a default setting for the search window: moves css setting to base.css
- some enhancements for the DocumentIndex class
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6410 6c8d7289-2bf4-0310-a012-ef5d649a1542
sixcooler