Commit Graph

16 Commits

Author SHA1 Message Date
Michael Peter Christen
f78ce93a80 collection of speed and memory saving hacks 2012-07-13 21:15:38 +02:00
Michael Peter Christen
2fc8ecee36 ConcurrentLinkedQueue has a VERY long return time on the .size() method.
See
http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentLinkedQueue.html

and the following test programm:

public class QueueLengthTimeTest {


    public static long countTest(Queue<Integer> q, int c) {
        long t = System.currentTimeMillis();
        for (int i = 0; i < c; i++) {
            q.add(q.size());
        }
        return System.currentTimeMillis() - t;
    }

    public static void main(String[] args) {
        int c = 1;
        for (int i = 0; i < 100; i++) {
            Runtime.getRuntime().gc();
            long t1 = countTest(new ArrayBlockingQueue<Integer>(c), c);
            Runtime.getRuntime().gc();
            long t2 = countTest(new LinkedBlockingQueue<Integer>(), c);
            Runtime.getRuntime().gc();
            long t3 = countTest(new ConcurrentLinkedQueue<Integer>(),
c);

            System.out.println("count = " + c + ": ArrayBlockingQueue =
" + t1 + ", LinkedBlockingQueue = " + t2 + ", ConcurrentLinkedQueue = "
+ t3);
            c = c * 2;
        }
    }
}
2012-02-27 00:42:32 +01:00
Roland 'Quix0r' Haeder
fa08ed5ae5 Fixed a lot CHMOD rights (no need for execute flag on *.java/*.html) and introduced local/remote crawl size ratio based check 2011-12-29 00:33:16 +01:00
orbiter
3d5104d357 - fixed a bug in crawl start with file name (npe in new url)
- added deletion of solr index in IndexControlRWIs
- added asynchronous adding of large url lists (happens when crawls are startet with file)
- fixed npe in Image display
- replaced language warning with fine logging
- added a domain name cache in Domains that helps to speed up the isLocal property (less DNS lookups)
- added a new storage class for this new cache: KeyList. The domain key list is stored in DATA/WORK/globalhosts.list
- added concurrent solr updates and chunked transfers (50 documents until a commit is done) for high-speed feeding (> 40000 ppm)
- fixed a bug in content scraper that chopped off large parts of crawl lists (using crawl start from file)

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7666 6c8d7289-2bf4-0310-a012-ef5d649a1542
2011-04-18 16:11:16 +00:00
orbiter
3820525464 more memory protection: auto-flush of caches in case of memory shortage
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7575 6c8d7289-2bf4-0310-a012-ef5d649a1542
2011-03-09 16:32:34 +00:00
low012
3d95981f7d *) cleaning up the code a little bit
*) minor changes

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7396 6c8d7289-2bf4-0310-a012-ef5d649a1542
2010-12-27 17:07:21 +00:00
orbiter
b6fb239e74 redesign of parser interface:
some file types are containers for several files. These containers had been parsed in such a way that the set of resulting parsed content was merged into one single document before parsing. Using this parser infrastructure it is not possible to parse document containers that contain individual files. An example is a rss file where the rss messages can be treated as individual documents with their own url reference. Another example is a surrogate file which was treated with a special operation outside of the parser infrastructure.
This commit introduces a redesigned parser interface and a new abstract parser implementation. The new parser interface has now only one entry point and returns always a set of parsed documents. In case of single documents the parser method returns a set of one documents.
To be compliant with the new interface, the zip and tar parser had been also completely redesigned. All parsers are now much more simple and cleaner in its structure. The switchboard operations had been extended to operate with sets of parsed files, not single parsed files.
additionally, parsing of jar manifest files had been added.

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6955 6c8d7289-2bf4-0310-a012-ef5d649a1542
2010-06-29 19:20:45 +00:00
orbiter
11639aef35 - added new protocol loader for 'file'-type URLs
- it is now possible to crawl the local file system with an intranet peer
- redesign of URL handling
- refactoring: created LGPLed package cora: 'content retrieval api' which may be used externally by other applications without yacy core elements because it has no dependencies to other parts of yacy

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6902 6c8d7289-2bf4-0310-a012-ef5d649a1542
2010-05-25 12:54:57 +00:00
orbiter
25aef069a6 continuing String-hash - to - byte[]-hash redesign that was started in SVN 6775
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6790 6c8d7289-2bf4-0310-a012-ef5d649a1542
2010-04-08 00:11:32 +00:00
low012
b97ad0f380 *) some minor changes for better code readability
*) added more SVN properties

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6787 6c8d7289-2bf4-0310-a012-ef5d649a1542
2010-04-05 12:37:33 +00:00
orbiter
b79f4f062f refactoring of yacy documents and parsers: they depend now only on the kelondro classes
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6426 6c8d7289-2bf4-0310-a012-ef5d649a1542
2009-10-18 00:53:43 +00:00
orbiter
ce8dc575ca refactoring
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6398 6c8d7289-2bf4-0310-a012-ef5d649a1542
2009-10-11 00:12:19 +00:00
orbiter
dafffd0153 refactoring of parsers and document processing
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6182 6c8d7289-2bf4-0310-a012-ef5d649a1542
2009-07-08 21:48:08 +00:00
danielr
17b7845eb5 * refactoring
- moved constants from plasmaSwitchboard to own class (all 232 ;)
- moved remoteProxy-Methods to httpRemoteProxyConfig, better names
- removed some unnecessary code (else-statements)
* formatting (correct indentation)
* minor bugfixes (due to findbugs.sf.net)
* hopefully fixed "missing quote" (announcing StringParts as UTF-8)


git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5031 6c8d7289-2bf4-0310-a012-ef5d649a1542
2008-08-02 13:57:00 +00:00
danielr
3bb870bfcd added final where possible
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@5030 6c8d7289-2bf4-0310-a012-ef5d649a1542
2008-08-02 12:12:04 +00:00
orbiter
1689030ee8 refactoring: moved all crawler classes into their own package
git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4768 6c8d7289-2bf4-0310-a012-ef5d649a1542
2008-05-06 00:32:41 +00:00