khepri_mnesia_migration: Mnesia⬌Khepri migration toolkit
khepri_mnesia_migration is a library providing helpers to migrate data between the Mnesia and Khepri databases.
Currently, only the migration from Mnesia to Khepri is supported.
khepri_mnesia_migration is still under active development and should be considered Alpha at this stage.
Add khepri_mnesia_migration as a dependency of your project:
Using Rebar:
%% In rebar.config
{deps, [{khepri_mnesia_migration, "0.8.0"}]}.
Using Erlang.mk:
# In your Makefile DEPS += khepri_mnesia_migration dep_khepri_mnesia_migration = hex 0.8.0
Using Mix:
# In mix.exs
defp deps do
[
{:khepri_mnesia_migration, "0.8.0"}
]
end Synchronize cluster members
To ensure a Khepri store has the same members as the Mnesia cluster, use mnesia_to_khepri:synchronize_cluster_membership/{0,1}:
mnesia_to_khepri:synchronize_cluster_membership(StoreId).Copy Mnesia tables to a Khepri store
You can copy Mnesia tables records to a Khepri store using mnesia_to_khepri:copy_tables/{2,3}. It takes a converter module which takes care of actually processing each Mnesia records (if needed) and storing them in the Khepri store. A converter module called mnesia_to_khepri_example_converter is provided for common use cases and as an example.
mnesia_to_khepri:copy_all_tables(mnesia_to_khepri_example_converter).
rebar3 xref
rebar3 eunit
rebar3 ct --sname ct
rebar3 as test dialyzer
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