: I am not familiar with Solr internals, so the approach I wanted to take was : to basically check the numDocs property of the index during start-up and set : a READABLE state in the ZooKeeper node if it's greater than 0. I also : planned to create a commit hook for replication and updating which : controlled the READABLE property based on numDocs also. : : This just leaves the problem of finding out the number of documents during : start-up. I planned to have something like:
Most of the ZK stuff you mentioned is over my head, but i get the general gist of what you want: * a hook on startup that checks numDocs * if not empty, trigger some logic My suggestion would be to implement this as a "firstSearcher" SolrEventListener. when that runs, you'll have easy access to a SOlrIndexSearcher (and you won't even have to refcount it) and you can fire whatever logic you want based on what you find when looking at it. -Hoss
