in intranets and the internet can now choose to appear as Googlebot.
This is an essential necessity to be able to compete in the field of
commercial search appliances, since most web pages are these days
optimized only for Google and no other search platform any more. All
commercial search engine providers have a built-in fake-Google User
Agent to be able to get the same search index as Google can do. Without
the resistance against obeying to robots.txt in this case, no
competition is possible any more. YaCy will always obey the robots.txt
when it is used for crawling the web in a peer-to-peer network, but to
establish a Search Appliance (like a Google Search Appliance, GSA) it is
necessary to be able to behave exactly like a Google crawler.
With this change, you will be able to switch the user agent when portal
or intranet mode is selected on per-crawl-start basis. Every crawl start
can have a different user agent.
jdk-based logger tend to block
at java.util.logging.Logger.log(Logger.java:476) in concurrent
environments. This makes logging a main performance issue. To overcome
this problem, this is a add-on to jdk logging to put log entries on a
concurrent message queue and log the messages one by one using a
separate process.
- FTPClient uses the concurrent logging instead of the log4j logger
- move setting of system property solr.directoryFactory=solr.MMapDirectoryFactory to solrcore.properties
- add check of os.arch for 64bit system, if it fails use default/solrcore.x86.properties (if exists) as solrcore.properties
reason: on 32bit MMapDirectoryFactory may fail with.....
Caused by: java.io.IOException: Map failed
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:849)
at org.apache.lucene.store.MMapDirectory.map(MMapDirectory.java:283)
- to prevent following log if YaCy was previously not properly shutdown
E ... STARTUP WARNING: the file C:\src\git\yacy-rc1\DATA\yacy.running exists, this usually means that a YaCy instance is still running
E ... STARTUP FATAL ERROR: java.util.concurrent.TimeoutException
java.util.concurrent.ExecutionException: java.util.concurrent.TimeoutException
at net.yacy.cora.protocol.TimeoutRequest.call(TimeoutRequest.java:91)
at net.yacy.cora.protocol.TimeoutRequest.ping(TimeoutRequest.java:112)
at net.yacy.yacy.startup(yacy.java:200)
at net.yacy.yacy.main(yacy.java:638)
Caused by: java.util.concurrent.TimeoutException
- adjust Netbeans path (to solr4.1.jars)
YaCy; YaCy is still running and the user additionally expect that
another doubleclick on the YaCy icon simply opens the search windows
(again) I decided to add a function that complies to the expectation to
the user: simply open the browser pop-up page again if the user starts
YaCy while YaCy is still running.
- start more processes
- remove superfluous host name resolution
- better/more flexible subnet ip range calculation
- prefer ipv4 makes better usable ip pre-settings in servlet
- extended servlet by new subnet /20 - option
- redesign of scanner start process in servlet (generalization)
or will be superfluous or subject of complete redesign after the
migration to solr. Removing these things now will make the transition to
solr more simple.
later
- added abstract add, delete, get methods in the triplestore
- added generation of triples after auto-annotation
- migrated all MultiProtocolURI objects to DigestURI in the parser since
the url hash is needed as subject value in the triples in the triple
store
- config string for chinese
- do not copy the language file to DATA/LOCALE any more (and do not use
them there, this is really confusing for new translators)
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
Michael Peter Christen