[Tarantool-patches] [PATCH v2 0/5] Split vote and bugs

[Serge Petrenko]

20.01.2022 03:43, Vladislav Shpilevoy пишет:
> Split vote handling in Raft, its usage in storage, and 2 bug fixes found while
> working on this.
>
> Changes in v2:
> - dropped ev_timer.at usage;
> - disabled split-vote detection for cluster < quorum;
> - disabled split-vote for vote count > cluster;
> - re-checked split vote after WAL write;
> - re-checked split vote on quorum change.
>
> Branch: http://github.com/tarantool/tarantool/tree/gerold103/gh-5285-raft-split-vote
> Issue: https://github.com/tarantool/tarantool/issues/5285
>
> Vladislav Shpilevoy (5):
>    raft: fix crash on election_timeout reconfig
>    raft: fix ev_timer.at incorrect usage
>    raft: track all votes, even not own
>    raft: introduce split vote detection
>    election: activate raft split vote handling
>
>   .../unreleased/election-timeout-cfg-crash.md  |   5 +
>   src/box/raft.c                                |   4 +-
>   src/lib/fakesys/fakeev.c                      |  10 +-
>   src/lib/raft/raft.c                           | 222 ++++++++--
>   src/lib/raft/raft.h                           |  32 +-
>   .../election_split_vote_test.lua              |  92 ++++
>   test/unit/raft.c                              | 393 +++++++++++++++++-
>   test/unit/raft.result                         |  87 +++-
>   test/unit/raft_test_utils.c                   |  12 +
>   test/unit/raft_test_utils.h                   |   5 +
>   10 files changed, 803 insertions(+), 59 deletions(-)
>   create mode 100644 changelogs/unreleased/election-timeout-cfg-crash.md
>   create mode 100644 test/replication-luatest/election_split_vote_test.lua
>
LGTM. Thanks!

-- 
Serge Petrenko