: I would like to get how is a snapshot really. It's obviously a hard link to : the files. : But it just contain the last update ??
the nature of lucene indexes is that files are never modified -- only created, or deleted. this makes rsyncing very efficient when updates have been made to an index, because only new new files exist, and only those new files need to be synced. : My problem is ... Ive cronjob to commit and auto start snapshooter every : 5mn, which works properly. : And on my slaves I've cronjob every 5minute to snapshoot. But I don"t get : why, it doesn't take every snapshot files ... maybe bad syncronisation, or : it's too long to install? in your case, it looks like two things are happening... note that the snapinstaller command run at 16:35:36 doesn't seem to finish until 16:41:37 (361 seconds later) and it encountered an error that it couldn't connect to your solr port (do the scripts have hte correct host:port configuration?) the second thing to notice is that everytime snapinstaller runs after that, it says the most current snapshot is snapshot.20090205162502 ... which means either snappuller isn't running often enough, or snapshooter isn't producing snapshots as frequently as you think it is. FYI: typically people cron "snappuller; snapinstaller" together as a single crontab entry ... http://wiki.apache.org/solr/CollectionDistribution : 2009/02/05 16:35:36 started by root : 2009/02/05 16:35:36 command: /data/solr/books/bin/snapinstaller : 2009/02/05 16:35:37 installing snapshot : /data/solr/books/data/snapshot.20090205162502 : 2009/02/05 16:35:38 notifing Solr to open a new Searcher : 2009/02/05 16:40:04 started by root : 2009/02/05 16:40:04 command: /data/solr/books/bin/snapinstaller : 2009/02/05 16:40:04 latest snapshot : /data/solr/books/data/snapshot.20090205162502 already installed : 2009/02/05 16:40:04 ended (elapsed time: 0 sec) : 2009/02/05 16:41:37 failed to connect to Solr server : 2009/02/05 16:41:37 snapshot installed but Solr server has not open a new : Searcher : 2009/02/05 16:41:37 failed (elapsed time: 361 sec) : 2009/02/05 16:54:40 started by root : 2009/02/05 16:54:40 started by root : 2009/02/05 16:54:40 command: /data/solr/books/bin/snapinstaller : 2009/02/05 16:54:40 command: /data/solr/books/bin/snapinstaller : 2009/02/05 16:54:40 latest snapshot : /data/solr/books/data/snapshot.20090205162502 already installed : 2009/02/05 16:54:40 latest snapshot : /data/solr/books/data/snapshot.20090205162502 already installed : 2009/02/05 16:54:40 ended (elapsed time: 0 sec) : 2009/02/05 16:54:40 ended (elapsed time: 0 sec) -Hoss
