tree f4d89fc2a6c0901f65038009af684135788d3269
parent f7cbbe8017b6ae3b6c50069b1232446349b01aed
author Dave Borowitz <dborowitz@google.com> 1372256248 -0600
committer Dave Borowitz <dborowitz@google.com> 1373314974 -0700

Scan index directory to determine Lucene versions

Mark index versions as "ready" when they are fully indexed and the
server is not running (i.e. from Reindex). By default, search from the
most recent ready index version, and write to both the most recent
ready version and (if different) the most recent known version.

At server startup, mark all versions except those we are about to
start writing to as not ready.

Change-Id: Icf42a3eb27b0445899300d60941cd701a8072d41