Topic on Extension talk:Lucene-search

MediaWiki 1.16.alpha on Ubuntu. Installed java-6-sun-1.6.0.24 and Apache Ant 1.7.0. Installed lucene-search-bin-2.1.3.tar.gz into /my/lucene/lucene-search-2.1.3.

Configs are created:

./configure /path/to/wiki/install/root/

Running

./build

returns

Dumping MyWiki...
MediaWiki lucene-search indexer - rebuild all indexes associated with a database.
Trying config file at path /root/.lsearch.conf
Trying config file at path /root/my/lucene/lucene-search-2.1.3/lsearch.conf
MediaWiki lucene-search indexer - index builder from xml database dumps.

0    [main] INFO  org.wikimedia.lsearch.util.Localization  - Reading localization for En
83   [main] INFO  org.wikimedia.lsearch.ranks.Links  - Making index at /root/my/lucene/lucene-search-2.1.3/indexes/import/MyWiki.links
141  [main] INFO  org.wikimedia.lsearch.ranks.LinksBuilder  - Calculating article links...
232  [main] FATAL org.wikimedia.lsearch.importer.Importer  - Cannot store link analytics: Premature end of file.
java.io.IOException: Trying to hardlink nonexisting file /root/my/lucene/lucene-search-2.1.3/indexes/import/MyWiki
        at org.wikimedia.lsearch.util.FSUtils.createHardLinkRecursive(FSUtils.java:97)
        at org.wikimedia.lsearch.util.FSUtils.createHardLinkRecursive(FSUtils.java:81)
        at org.wikimedia.lsearch.importer.BuildAll.copy(BuildAll.java:157)
        at org.wikimedia.lsearch.importer.BuildAll.main(BuildAll.java:112)
235  [main] ERROR org.wikimedia.lsearch.importer.BuildAll  - Error during rebuild of MyWiki : Trying to hardlink nonexisting file /root/my/lucene/lucene-search-2.1.3/indexes/import/MyWiki
java.io.IOException: Trying to hardlink nonexisting file /root/my/lucene/lucene-search-2.1.3/indexes/import/MyWiki
        at org.wikimedia.lsearch.util.FSUtils.createHardLinkRecursive(FSUtils.java:97)
        at org.wikimedia.lsearch.util.FSUtils.createHardLinkRecursive(FSUtils.java:81)
        at org.wikimedia.lsearch.importer.BuildAll.copy(BuildAll.java:157)
        at org.wikimedia.lsearch.importer.BuildAll.main(BuildAll.java:112)
Finished build in 0s

Creating a dump xml with maintenance/dumpBackup.php also fails. The command returns no error at all.

./lsearchd

returns

RMI registry started.
Trying config file at path /root/.lsearch.conf
Trying config file at path /root/my/lucene/lucene-search-2.1.3/lsearch.conf
0    [main] INFO  org.wikimedia.lsearch.util.Localization  - Reading localization for En
581  [main] INFO  org.wikimedia.lsearch.interoperability.RMIServer  - RMIMessenger bound
583  [Thread-2] INFO  org.wikimedia.lsearch.frontend.SearchServer  - Searcher started on port 8123
583  [Thread-1] INFO  org.wikimedia.lsearch.frontend.HTTPIndexServer  - Indexer started on port 8321
588  [Thread-5] INFO  org.wikimedia.lsearch.search.SearcherCache  - Starting initial deployer for [MyWiki, MyWiki.hl, MyWiki.links, MyWiki.related, MyWiki.spell]

Running the test search returns a 500 server error:

Internal error in SearchEngine: MyWiki is being deployed or is not searched by this host
LSearch daemon on localhost

and adds this to the console log:

2199 [Thread-8] INFO  org.wikimedia.lsearch.frontend.HttpMonitor  - HttpMonitor thread started
2200 [pool-2-thread-1] INFO  org.wikimedia.lsearch.frontend.HttpHandler  - query:/search/MyWiki/Boratto what:search dbname:MyWiki term:Boratto
2234 [pool-2-thread-1] INFO  org.wikimedia.lsearch.analyzers.StopWords  - Successfully loaded stop words for: [nl, en, it, fr, de, sv, es, no, pt, da] in 18 ms
java.lang.RuntimeException: MyWiki is being deployed or is not searched by this host
        at org.wikimedia.lsearch.search.SearcherCache.getLocalSearcher(SearcherCache.java:388)
        at org.wikimedia.lsearch.search.WikiSearcher.<init>(WikiSearcher.java:96)
        at org.wikimedia.lsearch.search.SearchEngine.search(SearchEngine.java:715)
        at org.wikimedia.lsearch.search.SearchEngine.search(SearchEngine.java:129)
        at org.wikimedia.lsearch.frontend.SearchDaemon.processRequest(SearchDaemon.java:101)
        at org.wikimedia.lsearch.frontend.HttpHandler.handle(HttpHandler.java:193)
        at org.wikimedia.lsearch.frontend.HttpHandler.run(HttpHandler.java:114)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
2251 [pool-2-thread-1] ERROR org.wikimedia.lsearch.search.SearchEngine  - Internal error in SearchEngine trying to make WikiSearcher: MyWiki is being deployed or is not searched by this host
java.lang.RuntimeException: MyWiki is being deployed or is not searched by this host
        at org.wikimedia.lsearch.search.SearcherCache.getLocalSearcher(SearcherCache.java:388)
        at org.wikimedia.lsearch.search.WikiSearcher.<init>(WikiSearcher.java:96)
        at org.wikimedia.lsearch.search.SearchEngine.search(SearchEngine.java:715)
        at org.wikimedia.lsearch.search.SearchEngine.search(SearchEngine.java:129)
        at org.wikimedia.lsearch.frontend.SearchDaemon.processRequest(SearchDaemon.java:101)
        at org.wikimedia.lsearch.frontend.HttpHandler.handle(HttpHandler.java:193)
        at org.wikimedia.lsearch.frontend.HttpHandler.run(HttpHandler.java:114)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)
2541 [pool-2-thread-2] WARN  org.wikimedia.lsearch.frontend.HttpHandler  - Unknown request /favicon.ico

Where to start troubleshooting? Thanks in advance!

Can you check if the .xml file in dump/ is not empty?

The xml created by maintenance/dumpBackup.php? Yes it is created but empty.

I have no problems running other maintenance scripts. It returns no error message at all, that drives me crazy.

Just saw this problem a minute ago on my own server. I had a typo in LocalSettings.php that prevented the dump from working (I personally was missing a trailing ';').

Hmh I can check but shouldn't the whole wiki break in such case? My wiki works fine tho.

Yes, unfortunately dumpBackup.php returns very few errors. You need to google around to make sure it works first.

When xdebug is turned on it returns this error message in php_errors.log: PHP Fatal error: Maximum function nesting level of '100' reached, aborting! in /var/www/html/w/includes/GlobalFunctions.php on line 2326 Try to turn off xdebug in php. It helped me to solve the premature end of file error when running build.

Or put xdebug.max_nesting_level = 200 in your php.ini.