ginahagg / riak_core_ring_on_partisans_plumtree

an experiment to extract riak_core's ring data structure and use partisan's plumtree to gossip it in a cluster

pring

A partisan application

On all nodes:

pring:print_ring().
pring:all_members().
pring:broadcast_ring().

On Node 1:

{ok, Idxs} = pring_broadcast_handler:ring_apply(fun (Ring) ->
    Idxs = riak_core_ring:my_indices(Ring),
    {ok, Ring, Idxs}
end).

[Idx1, Idx2 | _] = Idxs.

pring:transfer_node(Idx1, 'pring2@127.0.0.1').

pring:broadcast_ring().

% on all nodes
pring:print_ring().

pring:transfer_node(Idx2, 'pring3@127.0.0.1').

pring:broadcast_ring().

% on all nodes
pring:print_ring().

demo screencast: https://asciinema.org/a/aYwww1dlkI9vxjMIykjG9uuuI

Build

rebar3 release

Test

rebar3 ct

Run

rebar3 run

Clustering

make devrel

# on 3 different shells
make dev1-console
make dev2-console
make dev3-console

# join all nodes:
make devrel-join

# check node members
make devrel-status

# join node1 to node2 manually:
./_build/dev1/rel/pring/bin/pring-admin cluster join pring2@127.0.0.1

# check node1 members
./_build/dev1/rel/pring/bin/pring-admin cluster members

# check node1 connections
./_build/dev1/rel/pring/bin/pring-admin cluster connections

Ping node2 from node1 using partisan:

1> pring:ping('pring2@127.0.0.1').
ok

% check logs/console on node2, you should see:
got msg ping

Quit

1> q().

TODO

• define license and create LICENSE file

License

TODO