neo4j/community — pull request #776 by tinwelint (2012-08-13 19:15:13+00:00)
Title: Allows for less contention around PersistenceWindowPool#refreshBricks() ...

...by

monitoring if there's a thread currently doing refresh or not. If the
current thread is about to refresh and there's another one already
refreshing then instead of waiting for the refresh to complete, just skip
refreshing in the current thread.