Released 1.0.12

[José Bolina]

Hello, everyone!

I am glad to announce 1.0.12.Final was released yesterday. Here is the commit history from this new version [1]. It should already be available in central for use.

We adopted Jepsen to verify the correctness of our building blocks and to hold some invariants RAFT requires. This release includes a few fixes we found for:

• Atomically update the leader and term values. In scenarios like an election round or when updating the new leader, a client could see the wrong leader/term. We didn't find any linearizability violations during the tests caused by this; [2]
• We introduced ELECTION2. An extension to the ELECTION protocol, which includes a pre-voting phase. More information on the design document; [3, 4]
• The ReplicatedStateMachines accepts a custom ClassLoader to use when serializing commands. [5] 

The other commits were more admin, updating README, manual, and design documents. You might also have noticed we moved the repository from Bela's profile to jgroups-extras. We plan on developing more in there.

For the coming steps, I plan on handling some of the GitHub issues and a series of tutorials using jgroups-raft. Hopefully, this will make the entry barrier as low as possible for new users.

Cheers,

[1] https://github.com/jgroups-extras/jgroups-raft/compare/d136c22b0b6a99fdf0ca3f4f50d78bae4373b935...20be827ea2520dc39c80428754cdf0d68bbcc7d7

[2] https://github.com/jgroups-extras/jgroups-raft/commit/41f602a72025017137e7ec0292cdd84208ad49d2

[3] https://github.com/jgroups-extras/jgroups-raft/commit/54d8cd3fd202acc10f209e4d1f89725d05f69c52

[4] https://github.com/jgroups-extras/jgroups-raft/blob/master/doc/design/Election2.adoc

[5] https://github.com/jgroups-extras/jgroups-raft/commit/5c7106dd6de2de35bc688e8eca5abbe1d693a3a7

[Bela Ban]

Congrats, Jose!

On 22.11.2023 14:00, José Bolina wrote:
>
> Hello, everyone!
>
>
> I am glad to announce 1.0.12.Final was released yesterday. Here is the
> commit history from this new version [1]. It should already be
> available in central for use.
>
>
> We adopted Jepsen to verify the correctness of our building blocks and
> to hold some invariants RAFT requires. This release includes a few
> fixes we found for:
>
>

> * Atomically update the leader and term values. In scenarios like an

> election round or when updating the new leader, a client could see
> the wrong leader/term. We didn't find any linearizability
> violations during the tests caused by this; [2]

> * We introduced ELECTION2. An extension to the ELECTION protocol,

> which includes a pre-voting phase. More information on the design
> document; [3, 4]

> * The ReplicatedStateMachines accepts a custom ClassLoader to use

> when serializing commands. [5]
>
>
> The other commits were more admin, updating README, manual, and design
> documents. You might also have noticed we moved the repository from
> Bela's profile to jgroups-extras. We plan on developing more in there.
>
>
> For the coming steps, I plan on handling some of the GitHub issues and
> a series of tutorials using jgroups-raft. Hopefully, this will make
> the entry barrier as low as possible for new users.
>
>
>
> Cheers,
>
>
> [1] https://github.com/jgroups-extras/jgroups-raft/compare/d136c22b0b6a99fdf0ca3f4f50d78bae4373b935...20be827ea2520dc39c80428754cdf0d68bbcc7d7
>
> [2] https://github.com/jgroups-extras/jgroups-raft/commit/41f602a72025017137e7ec0292cdd84208ad49d2
>
> [3] https://github.com/jgroups-extras/jgroups-raft/commit/54d8cd3fd202acc10f209e4d1f89725d05f69c52
>
> [4] https://github.com/jgroups-extras/jgroups-raft/blob/master/doc/design/Election2.adoc
>
> [5] https://github.com/jgroups-extras/jgroups-raft/commit/5c7106dd6de2de35bc688e8eca5abbe1d693a3a7
>
>

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--
Bela Ban | http://www.jgroups.org