The default redirection strategy when using directly HTTPClient is
incorrect when redirection is cross host (the original Host header is
still sent when requesting the redirected location).
YaCy LoaderDispatcher handles redirections properly, thus release
archive files using redirected URLs (such as the URLs on a GitHub
Release page) are successfully downloaded.
When a downloaded archive release is corrupted, empty, or can not be
opened for any reason, the update script must not be launched because it
erases the existing lib/*.jar libraries.
to the client (not cookies only). This is used by some servlets to mainly
set "Access-Control-Allow-Origin" header. Added a contains check to be
sure no header set by Defaultservlet is overwritten.
NullPointerException occurred when using and Identificator instance
which encountered and error in its constructor.
This error could be caused by a missing "langdetect" folder in the
current folder of the main process, or by simultaneous first calls to
the constructor, initializing concurrently the DetectorFactory.langlist.
Fixes the mantis 714 (http://mantis.tokeek.de/view.php?id=714)
Reduced this vocabulary memory usage :
- by using only one map term2entries instead of two maps having the
same key set
- by generating the location object links on the fly using the
GeoLocation data instead of storing many duplicates of string prefix
"http://www.openstreetmap.org/?lat="
Measurements with VisualVM and GeoNames 0 enabled (cities with a
population > 1000) :
- AutotaggingLibrary retained size :
- initial : 309 718 763 bytes
- after refactoring : 159 224 641 bytes
Using String instead of StringBuilder instances in GeonamesLocation
allows to reuse the same immutable objects in the Tagging class.
Measurements with VisualVM and GeoNames 0 enabled (cities with a
population > 1000) :
- OverArchingLocation retained size :
- initial : 164 666 830 bytes
- after refactoring : 97 736 804 bytes
- AutotaggingLibrary retained size :
- initial : 354 713 633 bytes
- after refactoring : 309 718 763 bytes
Could occur when a search request was performed just after peer startup,
and the Switchboard Thread "LibraryProvider.initialize" had completed,
thus requesting a ProbabilisticClassifier not completely initialized
(and having a null contexts property).
Reusing the same geonameid Integer instance between `id2loc` and
`name2ids` maps reduces (a little) memory footprint.
Measured OverarchigLocation class retained memory with VisualVM on
openJDK 8 :
- initial : 183 439 490 bytes
- after refactoring : 164 666 830 bytes
As reported by @reger24, image and favicon viewing was broken with
unauthenticated requests on peers configured to require authentication
even from localhost.
So I unified viewing rights check in a single new function on
ImageViewer class.
to work directly with javax.servlet.http.Cookie (rename headerProps to
cookieStore as is only used for this).
(Re)implement set-cookie in DefaultServlet to make cookieAuthentication
work as designed.
When starting a crawl from a file containing thousands of links,
configuration setting "crawler.MaxActiveThreads" is effective to prevent
saturating the system with too many outgoing HTTP connections threads
launched by the crawler.
But robots.txt was not affected by this setting and was indefinitely
increasing the number of concurrently loading threads until most ot the
connections timed out.
To improve performance control, added a pool of threads for Robots.txt,
consistently used in its ensureExist() and massCrawlCheck() methods.
The Robots.txt threads pool max size can now be configured in the
/PerformanceQueus_p.html page, or with the new
"robots.txt.MaxActiveThreads" setting, initialized with the same default
value as the crawler.
It can take any Date field of the index and displays a list of year strings
in reverse order by the year (not the score/count).
To allow to define the index field to use, the fieldname (and title can be
appended to the navi's name "year" e.g. year:load_date_dt:LoadDate
It works also with dates_in_content_dts field (from the graphical date
navigator). Here the query parameter from: to: are used on selection as
Query modifier (for other dates currently no query parameter available, so
selection won't work to filter search results).
Not included in the UI Searchpage layout config so far (for experiment with
it manual change to conf needed).
handler.
UrlProxyServlet splits url in parts to pass it on as parameter and
HeaderFramework constructs a url from param parts. This is obsolete if
already created url is used (makes HeaderFramework.getRequestURL obsolete
= removed)
to make all readily available information from the original ServletRequest
available to YaCy servlets (without converting data to internal structures).
The implementation of the common interface allows easier integration of
YaCy servlets with the servlet standard (e.g. shared login service with
the servlet container etc.)
When the peer is behind a reverse proxy providing SSL/TLS encryption,
the rendered absolute URLs should start with https when the user browser
requested https : added limited support to the X-Forwarded-Proto HTTP
header notably provided on Heroku platform.
Also added some unit tests.
When WikiCode inserted in a peer hosted Blog, Wiki, Messages or Profile
contains relative links (images or any content, hosted in DATA/HTDOCS),
it is more reliable to keep these links relative, especially when the
peer is behind any kind of reverse Proxy.
the navigator to include counts all matches (rwi+fulltext).
Fixing also unresolved_pattern in navigators title (of the counter)
The use of inurl: query modifier as filter has not been changed keeping
it as soft (unsharp) filter facet.
Upd StringNavigator to prevent empty string form multivalued solr fields,
removed date value conversion (better handled elsewhere, not need here).
Prepared the first basic navigators (for authors and collections) for the
list of SearchEvent.navigatorPlugins and adjusted servlet to use these.
- this allows to configure display order of these navigators (by ordering config string)
- eventually allows for additional and/or custom navigators using any
available index field without need for changing servlets
- the Collection navigation has been adjusted to exclude the internal,
default robot_* and dht collections from displaying
- rwi results are now also checked for navigatior by the refactored navi's
So far no config options were added to customize or add navigators (may
come later if route of upcoming modularization/plugin system is defined).
used for rwi ranking.
Main changes:
- introduce a posintext() to access the stored value. This reduces also mem alloc of position array for WordReferenceRow (index access)
- use the positions() array for joined references on multi-word queries if needed (otherwise allow positions() to be null
- adjust assignments and the min() max() and distance() calculation accordingly
during rwi search result processing worddistance calculation is effected
by concurrent update (normalization) of min/max ranking parameter for
wordpositions. On update of min/max the exception is raised in distance calc
and now catched.
This concurrent update and change of ranking results is needed for speed
but should be further checked for optimization
Applied strategy : when there is no restriction on domains or
sub-path(s), stack anchor links once discovered by the content scraper
instead of waiting the complete parsing of the file.
This makes it possible to handle a crawling start file with thousands of
links in a reasonable amount of time.
Performance limitation : even if the crawl start faster with a large
file, the content of the parsed file still is fully loaded in memory.
(again, description in http://mantis.tokeek.de/view.php?id=698)
as root cause was not seen, added just workaround reducing in favour over a
try catch (for easier followup).
Issue was the calculation in AbstractReference with positions.clear() call,
this made distance result always 0 (distance needs min 2 positions) and created concurrency issues.
+ unit test of changes
refactor to using long in URIMetadataNode too (and related call parameters)
As remote rwi score's are not used (since v1.83) skip reading float-score ,
but keep in toString() for communication with older versions.
reger