plumtree's Introduction

plumtree

Plumtree is an implementation of Plumtree[1], the epidemic broadcast protocol. It is extracted from the implementation in riak_core[2]. Instead of the riak_core ring and riak's ring gossip protocol, it includes a standalone membership gossip, built around riak_dt[3]'s ORSWOT[4].

More information on the plumtree protocol and it's history we encourage you to watch Jordan West's RICON West 2013 talk[5] and Joao Leitao & Jordan West's RICON 2014 talk[6].

A special thanks to Jordan, Joao and the team at Basho for providing much of the code contained in this library.

Build

$ make

Testing

$ make test
$ make xref
$ make dialyzer

Contributing

Contributions from the community are encouraged. This project follows the git-flow workflow. If you want to contribute:

Fork this repository
Make your changes and run the full test suite
Please include any additional tests for any additional code added
Commit your changes and push them to your fork
Open a pull request

We will review your changes, make appropriate suggestions and/or provide feedback, and merge your changes when ready.

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plumtree's Issues

update leveldb

put is only eventually consistent?

when i read the source code of plumetrre_manager it looks that during 2 simultaneous put one can win over the second. i know that this rarely happen but is this the expected behaviour?

makefile Error

I'm trying to biuld verneMQ on arch (with erlang 22.0-1):

 $ make rel
cat vars.config > vars.generated
echo "{app_version, \"1.8.0-5-g7e458c6\"}." >> vars.generated
/home/mehdi/vernemq/rebar3  release
===> Verifying dependencies...
===> Compiling plumtree                                                         
===> Compiling _build/default/lib/plumtree/src/plumtree_metadata_exchange_fsm.erl failed
_build/default/lib/plumtree/src/plumtree_metadata_exchange_fsm.erl:79: gen_fsm:start/3 is deprecated and will be removed in a future release; use gen_statem:start/3
_build/default/lib/plumtree/src/plumtree_metadata_exchange_fsm.erl:86: gen_fsm:send_event/2 is deprecated and will be removed in a future release; use gen_statem:cast/2
_build/default/lib/plumtree/src/plumtree_metadata_exchange_fsm.erl:303: gen_fsm:send_event/2 is deprecated and will be removed in a future release; use gen_statem:cast/2

make: *** [Makefile:28: rel] Error 1

Is this related to erlang version?
What should I do?

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