Hi,

I am looking to create a shared lucene directory between multiple application servers.
Looking at the documentation, it seems the indexBase property in the configuration only handles local directory paths.
Is there any configurations to have a single centralized locations for multiple servers to connect and update the lucene indexes?

Hi,
yes there are multiple ways to achieve that. The only "rule" that you have to keep in mind is that only one node can write to an index. We call this a "master" node, and there are various options to delegate indexing events from the other nodes to the master node; such busses are called backends.

See this section:
http://docs.jboss.org/hibernate/search/5.0/reference/en-US/html_single/#_back_end

About index storage:
again you have some options. Read operations can happen from a network share; that's simple to setup but not very efficient. On the same section above it also explains how to setup a periodic copy job, so that each node can regularly copy an index to their local disk.

An alternative to disk shares is to use Infinispan for index storage: http://docs.jboss.org/hibernate/search/5.0/reference/en-US/html_single/#infinispan-directories