On Fri, Nov 19, 2010 at 11:39 PM, Bing Li <lbl...@gmail.com> wrote: [...] > When updates are replicated to slave servers, it is supposed that the > updates are merged with the existing indexes and readings on them can be > done concurrently. If so, the queries must be responded instantly. That's > what I mean "appending". Does it happen in Solr? [...]
If you look at the last point in the section "How does the slave replicate?" on the replication page, http://wiki.apache.org/solr/SolrReplication , you will note that a commit is issued on the slave Solr server *after* replication finishes, so that new/updated documents become available for querying only then. Do not personally have much experience with this, but if you need real-time search feature like you seem to be describing above, I would look at http://wiki.apache.org/solr/NearRealtimeSearch http://wiki.apache.org/solr/NearRealtimeSearchTuning and recent threads on the subject on this mailing list. Regards, Gora
