various checks like the blacklist check or the robots.txt disallow check are now
done by a separate thread to unburden the indexer thread(s)
TODO: maybe we have to introduce a threadpool here if it turn out that this single
thread is a bottleneck because of the time consuming robots.txt downloads
*) improved index transfer
The index selection and transmission is done in parallel now to improve index
transfer performance.
TODO: maybe we could speed up performance by unsing multiple transmission threads in
parallel instead of only a single one.
*) gzip encoded post requests
it is now configureable if a gzip encoded post request should be send on
intex transfer/distribution
*) storage Peer (very experimentell and not optimized yet)
Now it's possible to send the result of the yacy indexer thread to a remote peer
istead of storing the indexed words locally.
This could be done by setting the property "storagePeerHash" in the yacy config file
- Please note that if the index transfer fails, the index ist stored locally.
- TODO: currently this index transfer is done by the indexer thread.
To seedup the indexer
a) this transmission should be done in parallel and
b) multiple chunks should be bundled and transfered together
*) general performance improvements
- better memory cleanup after http request processing has finished
- replacing some string concatenations with stringBuffers
- replacing BufferedInputStreams with serverByteBuffer
- replacing vectors with arraylists wherever possible
- replacing hashtables with hashmaps wherever possible
This was done because function calls to verctor or hashtable functions
take 3 time longer than calls to functions of arraylists or hashmaps.
TODO: we should take a look on the class serverObject which is inherited from hashmap
Do we realy need a synchronization for this class?
TODO: replace arraylists with linkedLists if random access to the list elements is not needed
*) Robots Parser supports if-modified-since downloads now
If the downloaded robots.txt file is older than 7 days the robots parser tries to
download the robots.txt with the if-modified-since header to avoid unnecessary downloads
if the file was not changed. Additionally the ETag header is used to detect changes.
*) Crawler: better handling of unsupported mimeTypes + FileExtension
*) Bugfix: plasmaWordIndexEntity was not closed correctly in
- query.java
- plasmaswitchboard.java
*) function minimizeUrlDB added to yacy.java
this function tests the current urlHashDB for unused urls
ATTENTION: please don't use this function at the moment because
it causes the wordIndexDB to flush all words into the
word directory!
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@853 6c8d7289-2bf4-0310-a012-ef5d649a1542
*) Replacing PDFBox 0.7.1 lib with newer version 0.7.2
*) Refactoring of classes httpd/httpc/httpHeaders to
make many methods for httpHeader/Requestline parsing
reusable for new icap implementation
*) adding chunked input stream support
- needed by new icap implementation
- needed by future httpc HTTP/1.1 support
*) httpd.java
- moving all connection property contants to class httpHeader
- moving readHeader function to class httpHeader
- moving parseQuery function to class httpHeader
- moving handleTransparentProxy function to class httpHeader
*) httpHeader.java
- adding new fuction to parse the http response line
- adding new function to converte http headers to a string that
can be send to the client
- adding a function that generates a proper url using all parsed
connection properties
*) ICAP Support
- yacy now supports handling of icap response modification requests
- this feature can be used by other icap enabled proxies to contact
yacy as icap server, and to handover the downloaded content to yacy.logging
for indexing
- functionality was successfully tested with squid 2.5Stable 10 + icap patch
- further icap services e.g. URL filtering based on yacy's blacklists are possible
*) plasmaSwitchboard.java
- htcache entries that are still needed for indexing are now properly registered
as in use after system restart
- extended logging: log message now shows parsing and indexing time for each sb. entry
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@757 6c8d7289-2bf4-0310-a012-ef5d649a1542
See: http://www.yacy-forum.de/viewtopic.php?t=1118&highlight=xforwardedfor
*) httpc.java: Bugfix for incorrect http response statuscode parsing
In some situations the statustext whas chopped
*) Adding a lot of fileheaders containing YaCy copyright and license
*) httpd.java: Adding additional debugging http header that should help du detect
the "binary data in browser window" bug.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@653 6c8d7289-2bf4-0310-a012-ef5d649a1542
- Now it's possible to interrupt pending httpc-actions on server shutdown
- this is possible because of a newly introduced registration mechanism for
open sockets
*) yacyCore.java
- blocking peerPing threads can now be interrupted on server shutdown
*) serverCore.java
- restructuring shutdown code
*) error.html
- port number is now set correctly if port forwarding was enabled
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@389 6c8d7289-2bf4-0310-a012-ef5d649a1542
via a command-line email program (e.g. sendmail) to a configured email address
- the configuration dialog is reachable via Settings_p.html#messageForwarding
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@332 6c8d7289-2bf4-0310-a012-ef5d649a1542
*) serverLog.java logging functions now also accept exceptions als
additional parameters.
The Stacktrace of this ecceptions will then be appended to the
logging message and can e.g. be viewed on the gui logging page
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@265 6c8d7289-2bf4-0310-a012-ef5d649a1542
*) adding hashset for file-extensions that should not be transfered
using gzip content encoding
*) doing bugfixes on old keep-alive implementation
*) doing some additional http header validation according to rfc
*) doing all persistent connection detection in separate function now
*) doing server authentication in separate function now
*) doing proxy authentication in separate function now
*) simplifying GET, POST, HEAD functions because of new introduced
functions listed above
*) adding new function to handle empty request lines (which could
occure after post requests send via a persistent connection;
this depends on the used browser)
*) adding new function to handle unknown request methods by sending
a correct error message back to the client
*) setting correct content-length when sending back error messages
to the client
*) adding new functions that must be used by all http-Handler classes
to send
- a proxy error message
- a http header
back to the client
*) adding new function: shallTransportZipped
moved here from httpc
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@243 6c8d7289-2bf4-0310-a012-ef5d649a1542
*) Making Seed-Upload configuration more verbose.
*) Some Changes in SOAP Search API (not finished yet).
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@158 6c8d7289-2bf4-0310-a012-ef5d649a1542
optional content parsers, thread pool configuration ...
Please help me testing if everything works correct.
*) Migration of yacy seedUpload functionality
See: http://www.yacy-forum.de/viewtopic.php?t=256
- new uploaders can now be easily introduced because of a new modulare uploader system
- default uploaders are: none, file, ftp
- adding optional uploader for scp
- each uploader provides its own configuration file that will be
included into the settings page using the new template include feature
- Each uploader can define its libx dependencies. If not all needed libs are
available, the uploader is deactivated automatically.
*) Migration of optional parsers
See: http://www.yacy-forum.de/viewtopic.php?t=198
- Parsers can now also define there libx dependencies
- adding parser for bzip compressed content
- adding parser for gzip compressed content
- adding parser for zip files
- adding parser for tar files
- adding parser to detect the mime-type of a file
this is needed by the bzip/gzip Parser.java
- adding parser for rtf files
- removing extra configuration file yacy.parser
the list of enabled parsers is now stored in the main config file
*) Adding configuration option in the performance dialog to configure
See: http://www.yacy-forum.de/viewtopic.php?t=267
- maxActive / maxIdle / minIdle values for httpd-session-threadpool
- maxActive / maxIdle / minIdle values for crawler-threadpool
*) Changing Crawling Filter behaviour
See: http://www.yacy-forum.de/viewtopic.php?p=2631
*) Replacing some hardcoded strings with the proper constants of the httpHeader class
*) Adding new libs to libx directory. This libs are
- needed by new content parsers
- needed by new optional seed uploader
- needed by SOAP API (which will be committed later)
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@126 6c8d7289-2bf4-0310-a012-ef5d649a1542
so that a thread dump is more verbose
*) Moving code for transparent proxy support to a separate function
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@98 6c8d7289-2bf4-0310-a012-ef5d649a1542
- introduction of a threadpool for crawling
- introduction of a job queue to avoid buzy waiting for a free crawler slot
*) New classes added
- queue for receiving of crawler jobs
- semaphore class to do reader/writer synchronization (mutual exclusion)
- message object to hold all needed data about a crawler job
*) Trying to solve session-thread shutdown problem
- session thread stopped variable is now set from outside before interrupting the
session thread.
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@39 6c8d7289-2bf4-0310-a012-ef5d649a1542
can be used instead of a ByteArrayOutputStream
*) Using a serverByteBuffer for lineBuffering in class httpc
instead of a ByteArrayOutputStream
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@35 6c8d7289-2bf4-0310-a012-ef5d649a1542
- many classes set to final
- implementation of a session-thread pool
- reusage of the server handler class (normally the httpd object)
within the session thread
- implementation of a httpc object pool
- introduction of a linebuffer in httpd which can be reused
- reusing the properties table in the httpc
- added to apache libs (commons-collections, commons-pool) which
are needed for the object/thread pool implementation
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@26 6c8d7289-2bf4-0310-a012-ef5d649a1542
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