On 1/8/2013 3:38 PM, hyrax wrote:
Hi folks, I'm using Solr 4.0.0 and trying to modify the example to build a search app. So far it works fine. However, I couldn't figure out how to clean up old index, say index created 20 days ago. I noticed the DeletionPolicy and I activated it by modifying solrconfig.xml by adding: <deletionPolicy class="solr.SolrDeletionPolicy"><str name="maxCommitsToKeep">1</str> <str name="maxOptimizedCommitsToKeep">0</str> <str name="maxCommitAge">3MINUTES</str> </deletionPolicy> I think the above should clean up the index created 3 minutes ago but it definitely not the case... What I want to test is that we created some indexes and 3 minutes they would be deleted by Solr.
Because you have maxCommitsToKeep set to 1 (the default), the deletion policy will never really do anything out of the ordinary, and there will only ever be one commit point. What the deletionPolicy does is let Lucene keep track of multiple commits (previous versions of the index at each time an index commit is done), and decide how many of the old ones to keep around. It is not keeping track of multiple indexes.
If you are saying that the index should delete any document older than 3 minutes, I do not think you can get Solr to do this on the server side. You'll have to set up a client process that connects and deletes whatever data you wish to delete - if you can construct a query that identifies documents older than 3 minutes, you can do a deleteByQuery using that query.
Thanks, Shawn
