- Rewrote usage of HashMap/Map to concurrent versions (to avoid a
CME=ConcurrentModificationException)
- Rewrote ConnectionInfo (as an example) to use a synchronized iterator
instead of synchronizing an
already synced HashSet (see Collections call)
- This avoids catching CMEs again
- Commented out noisy ConcurrentLog.logException() call
Conflicts:
source/net/yacy/repository/LoaderDispatcher.java
structure, but is not filled yet. To have the opportunity of a second
core, multi-core functionality had to be implemented to the
deep-embedded solr:
- migrated the solr_40 directory content to a subdirectory
'collection1'; the previously used default core is now called
collection1
- added solr_40/webgraph subdirectory as second core
- added a servlet configuration for the second core 'webgraph' in
/IndexSchema_p.html
- added instance handling as addition to solr connections: all solr
connectors are now instances of an solr 'instance' object; this required
a complete re-design of the solr embedding
- migrated also caching and sharding ontop of new instance handling
- migrated the search apis to handle now the access to a specific core,
the default core named 'collection1'
- migrated the remote solr search interface to access shards of cores;
for the yacy remote search the default core is now called 'solr'; using
the peer address as solr address
- migrated the solr backup and restore process: old backups cannot be
used after this migration!
- redesign of solr instance handling in all methods which access the
instances: they cannot hold copies of these instances any more; the must
retrieve the actuall connection object every time they want to write to
it (this solves also some bugs when switching the index/network)
- added another schema 'solr.webgraph.schema', the old solr.keys.list is
replaced by solr.collection.schema
This uses an enhanced version of the Nutch/Solr TextProfileSignatue.
As a result, a signature of the document is written to the solr search
index. Additionally for each time when a signature is written, it is
checked if the singature exists already in the index. If the signature
does not exist, the document is marked as unique. The unique attribute
can now be used to sort document lists and bring duplicates to the end
of a result list.
To enable this, a large portion of the search api to Solr had to be
changed. This affected mainly caching of 'exists' searches to enhance
the check for existing signatures and do this without actually doing a
solr query.
Because here the first time a long number is used as value in the Solr
store, also the value naming in the YaCySchema had to be adopted and
normalized. This caused that many files had to be changed.
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
- the search request cache can now get as large as 1000 entries
- if more entries arrive, unused are deleted
- the elements may stay in the cache up to 10 minutes and longer if they are used
- the elements are deleted earlier that 10 minutes if the memory gets low
This commit was mainly done for metager-feeding peers that have a query load of 50000 queries each day. Also added:
- a monitor for cache hit/cache miss in PerformanceMemory_p.html (see at bottom of page)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7093 6c8d7289-2bf4-0310-a012-ef5d649a1542
the home path can now be distinguished between
- data home; the path where the DATA directory is created
- application home; everything else
This will make it possible to store application data on Mac releases within the
~/Library/YaCy
directory; a place where Mac applications write their data.
Similar techniques will be possible for debian and windows.
To use the new data path, YaCy can be started with
-start <data path>
or
-gui <data path>
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7092 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
- 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
Michael Peter Christen