Data

Dragon has APIs for managing data in a scalable fashion. A prominent member of these APIs is the distributed dictionary. Descriptions and APIs are grouped together for each of the supported Dragon Data Types.

Python Reference

DDict	The Distributed Dictionary provides a key/value store that is distributed across a series of managers and one nodes of a Dragon run-time.
zarr.Store	This class implements a Zarr store using the Dragon distributed dictionary (DDict).

C Reference

• The Distributed Dictionary C Client
• C API Reference
  • Structures
    • dragonDDictKey_t
    • dragonDDictDescr_t
    • dragonDDictRequestDescr_t
  • Lifecycle Management
    • dragon_ddict_serialize()
    • dragon_ddict_attach()
    • dragon_ddict_detach()
  • Request Management
    • dragon_ddict_create_request()
    • dragon_ddict_request_value_sendh()
    • dragon_ddict_request_key_sendh()
    • dragon_ddict_request_recvh()
    • dragon_ddict_free_required()
    • dragon_ddict_finalize_request()
  • Send/Recv Functions
    • dragon_ddict_write_bytes()
    • dragon_ddict_read_bytes()
    • dragon_ddict_read_bytes_into()
    • dragon_ddict_read_mem()
  • Dictionary Operations
    • dragon_ddict_which_manager()
    • dragon_ddict_contains()
    • dragon_ddict_get()
    • dragon_ddict_put()
    • dragon_ddict_pput()
    • dragon_ddict_length()
    • dragon_ddict_clear()
    • dragon_ddict_pop()
    • dragon_ddict_keys()
    • dragon_ddict_stats()
    • dragon_ddict_checkpoint()
    • dragon_ddict_rollback()
    • dragon_ddict_sync_to_newest_checkpoint()
    • dragon_ddict_checkpoint_id()
    • dragon_ddict_set_checkpoint_id()
    • dragon_ddict_local_manager()
    • dragon_ddict_main_manager()
    • dragon_ddict_manager()
    • dragon_ddict_empty_managers()
    • dragon_ddict_local_managers()
    • dragon_ddict_local_keys()
    • dragon_ddict_synchronize()
    • dragon_ddict_clone()

C++ Reference

• The Distributed Dictionary C++ Client
• C++ API Reference
  • dragon::DDict
    • DDict()
    • DDict()
    • DDict()
    • ~DDict()
    • serialize()
    • size()
    • clear()
    • operator[]()
    • pput()
    • contains()
    • which_manager()
    • erase()
    • keys()
    • checkpoint()
    • rollback()
    • sync_to_newest_checkpoint()
    • checkpoint_id()
    • set_checkpoint_id()
    • local_manager()
    • main_manager()
    • manager()
    • empty_managers()
    • local_managers()
    • local_keys()
    • clone()
    • synchronize()