[Tarantool-patches] [PATCH 8/9] Support manual elections in `box.ctl.clear_synchro_queue()`

[Serge Petrenko]

11.04.2021 20:56, Serge Petrenko пишет:
> This patch adds support for manual elections from
> `box.ctl.clear_synchro_queue()`. When an instance is in
> `election_mode='manual'`, calling `clear_synchro_queue()` will make it
> start a new election round.
>
> Follow-up #5445
> Part of #3055
>
> @TarantoolBot document
> Title: describe election_mode='manual'
>
> Manual election mode is introduced. It may be used when the user wants to
> control which instance is the leader explicitly instead of relying on
> Raft election algorithm.
>
> When an instance is configured with `election_mode='manual'`, it behaves
> as follows:
>   1) By default, the instance acts like a voter: it is read-only and may
>      vote for other instances that are candidates.
>   2) Once `box.ctl.clear_synchro_queue()` is called, the instance becomes a
>      candidate and starts a new election round. If the instance wins the
>      elections, it remains leader, but won't participate in any new elections.
> ---
>

Force-pushed a fix for test:

==============
diff --git a/test/box/error.result b/test/box/error.result
index 7761c6949..dad6a21d3 100644
--- a/test/box/error.result
+++ b/test/box/error.result
@@ -441,6 +441,9 @@ t;
   |   220: box.error.TOO_EARLY_SUBSCRIBE
   |   221: box.error.SQL_CANT_ADD_AUTOINC
   |   222: box.error.QUORUM_WAIT
+ |   223: box.error.INTERFERING_PROMOTE
+ |   224: box.error.RAFT_DISABLED
+ |   225: box.error.ALREADY_LEADER
   | ...

  test_run:cmd("setopt delimiter ''");

-- 
Serge Petrenko