| Interface | Description | 
|---|---|
| LockProcedure.LockInterface | 
| Class | Description | 
|---|---|
| LockManager | Functions to acquire lock on table/namespace/regions. | 
| LockProcedure | Procedure to allow blessed clients and external admin tools to take our internal Schema locks
 used by the procedure framework isolating procedures doing creates/deletes etc. | 
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