Hi, For a project I am running a LAMP cluster (master and multiple slaves). Solr is running inside Jetty. To make things easy in terms of server management, all servers are configured the same way, and one server just acts as the MySQL master.
As for Solr the only data changes happen over night. So the idea is that we will update the MySQL database on a single server. Then we will update the Solr index on that server. Once this is completed and some sanity checks pass we will take update the slaves one by one. With MySQL we can just copy the data files and hot swap them. For Solr the idea is also just copy the index files into a new directory and then use http://wiki.apache.org/solr/CoreAdmin#RELOAD after updating the config file (I assume its not possible to hot swap like with MySQL). With this approach we can time the deployment of the new data to each slave perfectly. Plus if we run into any issues we can also easily rollback by just swapping the data around again. I would appreciate any comments you guys might have on this concept. regards, Lukas Kahwe Smith m...@pooteeweet.org
