Thus allowing to choose at configuration or per search request, whether
extending or not results beyond strict content domain filter (image,
video, audio or application).
Related graphical controls to be added to user interface.
Introduced through the new configurable setting
network.unit.protocol.https.preferred, defaulting to false for now.
Let choose to prefer using https when available on remote peers to
perform YaCy protocol operations including notably hello or transferRWI.
Not yet implemented for every YaCy protocol operations.
Upgraded to InetAccessHandler.
Added InetPathAccessHandler extension to InetAccessHandler to maintain
path patterns capability previously available in IPAccessHandler but
lost in InetAccessHandler.
Filtering on IPv6 addresses is now supported.
Support for deprecated pattern formats such as "192.168." and
"192.168.1.1/path" has been removed, but startup automated migration
should convert such patterns eventually present in serverClient.
Default is still http to prevent any regressions, but a new setting is
available to choose https as the preferred protocol to perform remote
searches.
New configuration setting 'remotesearch.https.preferred' is manually
editable in yacy.conf file or in Advanced Properties page
(/ConfigProperties_p.html).
Should be enabled as default in the future for improved privacy.
Https could also eventually be used for other peers communications.
Thus allowing a more convenient way (wihout the need to go to the admin
section) to login when searching on your remote or password protected
peer and benefit from extended search features such as Heuristics,
Bookmarking or JavasScript resorting.
Can be disabled using the ConfigSearchPage_p.html.
When the limit is reached, a button allow expanding/collapsing remaining
tags.
When this feature is activated without a limit to the number of
displayed tags, when encountering search results with a very large
number of keywords, the results page can become almost unusable (very
long vertical scrollbar)
This overrides Solr default to use managed schema. As we don't use
programatic schema changes this directs Solr to use schema.xml, eliminating
the warning.
Reported by Collision on mantis 758 (
http://mantis.tokeek.de/view.php?id=758 ).
Introduced by the new YaCy Solr configuration for Solr 6.6.0 (see commit
6fe735945d), including now Suggester
configuration.
Many non-blocking "java.nio.file.NoSuchFileException" traces with
warning log level can be logged by Solr, especially when heavily
crawling. This is issue is known from Solr 5.x but still unresolved with
Solr 6.x ( https://issues.apache.org/jira/browse/SOLR-9120 )
Consequently upgraded to "SEVERE" the default log level of the related
internal Solr class.
See also mantis 727 ( http://mantis.tokeek.de/view.php?id=727 )
This enables keyword navigator to filter on keywords. Added search page
output and layout config for keywords, allowing e.g. in Intranet use
to display the keywords. No styling or links applied to the keyword
text (but is desirable possibly in combination with bootstrap-tagsinput
for future/intranet).
- added the new setting as configurable in the "Debug/Analysis" settings
page. Debug/analysis is its main purpose for now as there is currently
no nice and "understansable" ranking score info servlet (see forum
discussion http://forum.yacy-websuche.de/viewtopic.php?f=8&t=5884 )
- render in the "Search Page Layout" page preview when enabled
- added constants
A port value of -1 will disable this option.
If set to a value greater 0, YaCy listens on this of on the local loopback
address (127.0.0.1) for a shutdown or restart signal.
E.g. connect to http://localhost:8005/shutdown will stop the YaCy server.
http://localhost:8005/restart will restart it.
This option allows to stop YaCy locally independant from the web web
frontend (which might be configured for password protected remote access).
HTTP "Referer" header sent by the browser when using YaCy can now be
controlled either with the referrer meta tag as a global policy, or only
for search result links by adding the attribute rel="noreferrer".
To improve privacy with the less possible regressions, the default is
set as meta tag with value "origin-when-cross-origin" : internal YaCy
links behavior is not affected, but when visiting external websites
referrer url is not empty but stripped from query parameters and path.
Older browsers, Safari, MS IE and Edge do not support the referrer meta
tag, so the standard but less flexible noreferrer link type can also be
enabled as an alternative.
User-friendly settings page to be implemented.
The datacite Solr search http URL was returning http status 301 in order
to redirect to its https version, thus making that YaCy heuristic always
fail.
These fields are default enabled but with no doubt not strictly
mandatory with the current code base.
As reported by @reger24, splitting between essential mandatory and
optional fields is still to be improved to reflect the current YaCy
needs.
- Added a new method to check activation of mandatory fields on
Collection Configuration commit, consistently with checks previously
performed in Switchboard startup and with mandatory fields in the
default schema.
- Reorganized default schema and CollectionConfiguration enumeration :
moved no more mandatory fields in a specific section, and moved fields
enabled at startup to the mandatory section.
- Marked mandatory fields as required and with stronger font in the
IndexSchema_p.html page
Many OpenSearch systems do not provide results as standard RSS/Atom
feeds but only as HTML.
This modification add some support for custom OpenSearch HTML results
through the use of mapping files (as already done for federated Solr
search) relying on CSS-like selectors to retrieve information from HTML
content.
An example mapping file is provided to map results from the
www.npmjs.com OpenSearch URL.
As discussed in PR #93 with @JeremyRand and @reger24 this new advanced
settings page includes:
- a new setting to control remote Solr responses encoding
- some existing debug settings which could not be set through the admin
user interface
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).
taking the existing limits into account but make it consistent with search option screen for admin and public user
changes:
- configured default number of items per page (ConfigPortal_p.html) is used as is (no hardcoded limit)
- otherwise requests are limited to 100 results per page ( = search option, index.html)
(this basically is the major change, inc. limit from 20 to 100 for public user)
P.S. - the older grant of more (1000), if no online snippet calculation, is kept (for the time being)
see http://mantis.tokeek.de/view.php?id=627
moved and was not cleared anymore. This results in an huge fieldcache.
(http://lucene.apache.org/#highlights-of-the-lucene-release-includehttps://issues.apache.org/jira/browse/LUCENE-5666)
Here I try to use DovValues where it is possible.
For this I used the Api-Scheme as new basis für the Solr-Schema.
This needs at least a complete optimization of the Solr-Index to get a
smaller FieldCache.
Everything that is indexed with these setting will not use the
Fieldcache at all.
bayesian filters. This can be used to classify documents during
indexing-time using a pre-definied bayesian filter.
New wordings:
- a context is a class where different categories are possible. The
context name is equal to a facet name.
- a category is a facet type within a facet navigation. Each context
must have several categories, at least one custom name (things you want
to discover) and one with the exact name "negative".
To use this, you must do:
- for each context, you must create a directory within
DATA/CLASSIFICATION with the name of the context (the facet name)
- within each context directory, you must create text files with one
document each per line for every categroy. One of these categories MUST
have the name 'negative.txt'.
Then, each new document is classified to match within one of the given
categories for each context.
avoid warning log
W org.apache.solr.handler.admin.AdminHandlers <requestHandler name="/admin/" class="solr.admin.AdminHandlers" /> is deprecated . It is not required anymore
This is a very complex migration: many classes had been renamed or
removed, dependencies changed and the solr index type is now aligned to
be a solr cloud repository.
Together with the Solr 5.2 library update, one other dependent library
had been updated as well: httpclient 4.4->4.4.1
Older indexes are migrated from 4_10 to 5_2. However, the new index
structure is more efficient and we recommend to re-index everything.
Please use the index export before you do the update to a large
surrogate xml file. After the update, start with an empty index and then
initialize this with your dump.
This assigns priorities to incoming requests. Higher priority numbers are served before lower.
(disabled by default in defaults/web.xml,
uncomment or copy entry to DATA/Settings/web.xml)
- date navigation
The date is taken from the CONTENT of the documents / web pages, NOT
from a date submitted in the context of metadata (i.e. http header or
html head form). This makes it possible to search for documents in the
future, i.e. when documents contain event descriptions for future
events.
The date is written to an index field which is now enabled by default.
All documents are scanned for contained date mentions.
To visualize the dates for a specific search results, a histogram
showing the number of documents for each day is displayed. To render
these histograms the morris.js library is used. Morris.js requires also
raphael.js which is now also integrated in YaCy.
The histogram is now also displayed in the index browser by default.
To select a specific range from a search result, the following modifiers
had been introduced:
from:<date>
to:<date>
These modifiers can be used separately (i.e. only 'from' or only 'to')
to describe an open interval or combined to have a closed interval. Both
dates are inclusive. To select a specific single date only, use the
'to:' - modifier.
The histogram shows blue and green lines; the green lines denot weekend
days (saturday and sunday).
Clicking on bars in the histogram has the following reaction:
1st click: add a from:<date> modifier for the date of the bar
2nd click: add a to:<date> modifier for the date of the bar
3rd click: remove from and date modifier and set a on:<date> for the bar
When the on:<date> modifier is used, the histogram shows an unlimited
time period. This makes it possible to click again (4th click) which is
then interpreted as a 1st click again (sets a from modifier).
The display feature is NOT switched on by default; to switch it on use
the /ConfigSearchPage_p.html servlet.
introduce FederateSearchManager handling search heuristic to external systems via specific FederateSearchConnectors,
which provide the query() functionallity, the translation to YaCy schema .toYaCySchema() and the search() routine to deliver results to searchevents, which is generally implemented in Abstract connector.
The manager enforces now a min 15s delay between calls to external systems.
Besides the OpensearchConnector a SolrFederateSearchConnector is available. It uses a additional config file for fieldname translation.
default heuristicopensearch.conf:
- openbdb.com removed - seems not longer to deliver results
- config via solrconnector to datacite.org added (large technical library archive)
technique should not be used at all! This project is about privacy, the
existence of a click servlet is one example why people should NOT use a
search portal if such exists.
luccioman