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
- introduced a new BLOB file format: kelondroBLOBHeap. This is a flat file with an index in RAM.
very similar to the eco-tables, but with flexible value sizes. It will replace the kelondroBLOBTree,
which is based on a kelondroTree, a file-AVL-based index data structure.
- the HTCACHE header file was replaced by the new blob heap file structure
- the robots.txt file was replaced by the new blob heap file structure
- the robots parser was enhanced (bugfixing for double-loading of the same robots.txt)
- other BLOB-dependent data structures were prepared to use also the new BLOB heap
- fixed a bug in the snippet fetch process: the file header was not written to the header index
There should now be less IO during snippet fetch and during crawling
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4978 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
- removed tree data type in kelondroHTCache
- added new class kelondroHeap; may be the core for a storage object that will once replace the many-files strategy of kelondroHTCache
- removed compatibility mode in indexRAMRI
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4747 6c8d7289-2bf4-0310-a012-ef5d649a1542
set the maximum transfer size to less than MTU=1500-52: buffer size <= 1448
- some refactoring of transfer methods (naming)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4558 6c8d7289-2bf4-0310-a012-ef5d649a1542
- removed mainly unused init-time for databases (was only used for tree tables, which are not used any more)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4496 6c8d7289-2bf4-0310-a012-ef5d649a1542
two main changes must be implemented to enable mass remote crawls:
- shift control of robots.txt to crawl queue (away from stacker). This is necessary since remote
crawls can contain unchecked urls. Each peer must check the robots to prevent that it is misused
as crawl agent for unwanted file retrieval
- implement new index files that control double-check of remotely crawled urls
After removal of robots.txt checking from stacker threads, the multi-threading of this process is void.
Multithreading has been removed. Also the thread pools for the crawl threads had been removed, since
creation of these threads is not resource-consuming, for a detailed explanation see svn 4106
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4181 6c8d7289-2bf4-0310-a012-ef5d649a1542
search profiling showed, that a major amount of time is wasted by computing url hashes. The computation does an intranet-check, which needs a DNS lookup. This caused that each urlhash computation needed 100-200 milliseconds, which caused remote searches to delay at least 1 second more that necessary. The solution to this problem is to attach a URL hash to the URL data structure, because that means that the url hash value can be filled after retrieval of the URL from the database. The redesign of the url/urlhash management caused a major redesign of many parts of the software. Since some parts had been decided to be given up they had been removed during this change to avoid unnecessary maintenance of unused code.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4074 6c8d7289-2bf4-0310-a012-ef5d649a1542
- different handling of link quotation
- different handling of link normalization
- enhanced html/unicode en/de-coding
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3993 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added chunked file transfer for non-yacy clients
- SSIs are streamed using chunked transfer, partly delivered pages can be seen in browser before transmission is finished
- added client-side network unit identification
- cleaned up code
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3926 6c8d7289-2bf4-0310-a012-ef5d649a1542
- caught possible NPE in CacheAdmin_p and added more error-cases
- speeded up deletion of entries in the local crawl queue by crawl profile (it has been noted often that this deletion is slow)
- added a bit javadoc
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3868 6c8d7289-2bf4-0310-a012-ef5d649a1542
- basic protection against start-up problems when database files are corrupted
- auto-delete of not-critical databases during startup when load error occurs
- on-the-fly reset option for all database tables
- automatic on-the-fly reset for seed tables during enumeration exceptions
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3547 6c8d7289-2bf4-0310-a012-ef5d649a1542
- better memory allocation for FlexTable indexes
- splitting between static index and dynamic index (only the dynamic part must grow)
- to enable a merge-iteration of new splittet index, a huge number of classes needed to be adopted for new iterator classes
- added new iterator classes that support cloneable iterators
- adopted all iterator classes to implement cloneable itarators
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3453 6c8d7289-2bf4-0310-a012-ef5d649a1542
- each cache can now allocate as much memory as is available
- no more fixed limits
- replaced old performance memory monitor by new one
- added supervision methods as static functions into the classes that provide cache functionality
- steering of ram allocation is done with two simple limits that are ram availability-relative
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3434 6c8d7289-2bf4-0310-a012-ef5d649a1542
- this class is replaced by an object that can hold any type of object
- this object must be defined as a class that implements kelondroObjectsEntry
- the kelodroMap is now implemented as kelondroMapObjects
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3297 6c8d7289-2bf4-0310-a012-ef5d649a1542
- added an assortment importer. the old database structures can
be imported with
java -classpath classes yacy -migrateassortments
- modified wordmigration. The indexes from WORDS are now imported
to the collection database. The call is
java -classpath classes yacy -migratewords
(as it was)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3044 6c8d7289-2bf4-0310-a012-ef5d649a1542
- better synchronization
- files are only deleted if they have been in the cache for 5 minutes
- hash-path for the HTCACHE is now default
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3018 6c8d7289-2bf4-0310-a012-ef5d649a1542
- moved all url and index(RWI) entries to index package
- better naming to distinguish RWI entries and URL entries
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2937 6c8d7289-2bf4-0310-a012-ef5d649a1542
