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Learners promotion v1 #15

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wants to merge 2 commits into from
Closed

Learners promotion v1 #15

wants to merge 2 commits into from

Commits on Nov 4, 2020

  1. r/stms: use ctxlogger copy constructor 

    Copying raft logger, instead of creating new one.

Signed-off-by: Michal Maslanka <michal@vectorized.io>
    @mmaslankaprv
    mmaslankaprv committed Nov 4, 2020
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  2. r/consensus: implemented learners promotion 

    Added implementation of learners promotion to raft::consensus. When node
is added to the cluster it first became a learner. When the node is
fully caught up with the leader it is promoted to be a voter.
Learner node have following properties:

- Can not become a leader
- Are not included into quorum
- Can grant vote
- Accept append entries requests

Signed-off-by: Michal Maslanka <michal@vectorized.io>
    @mmaslankaprv
    mmaslankaprv committed Nov 4, 2020
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