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There are situations where it would be extremely advantageous to completely block access to an open data file by current users. For example, consider the case where an administrator requires immediate access to a data file to compact the file as the file system is near capacity.
Typically in this situation, the application is brought down, as the compact operation requires exclusive access to the data file and indices. A better interactive approach may be to simply hold users out of the file while the operation takes place and allow them to “re-open” the file afterward. The new File Block and Quiet FairCom DB API calls gives you this ability.
