USGS-CIDA/coastal-hazards — pull request #804 by jiwalker-usgs (2014-06-02 19:50:02+00:00)
Title: Locking cache

Ivan pointed out that he is firing off a lot of tile requests with the same SLD, and if we don't lock to wait for the domain to be pre-calculated, it will be calculated many times. This lock will hold the requests for a couple seconds until this pre-calculation is done.