Only superficially. The choice of PBFT is mostly Matej's personal subjective one - this is the protocol he understands the best provide a reasonable implementation of rather fast.

Marko Vukolic

2022/02/28 14:40:55

Is it realistic to plan this to have it finished by the end of Q3 (assuming Sergey+Denis+Matej)? (Edited)

Matej Pavlovic

2022/02/28 16:15:59

Gut feeling: yes Objective assessment: hard to say yet.

Marko Vukolic

2022/02/28 14:46:25

## Milestone 4: Robust and tested consensus protocol

COuld we break this at least in sequential and/or paralelizable work items (Edited)

Marko Vukolic

2022/02/28 14:50:03

Integration with

This is B4 in our plan - right? (Edited)

Matej Pavlovic

2022/03/04 12:47:05

yes

Marko Vukolic

2022/02/28 14:51:41

Tests

If we get a testing strategy by EoQ3 but tests done in Q4 (leveraging also the testnet) this is ok (Edited)

Marko Vukolic

2022/02/28 14:51:52

Networking

What does this entail? (Edited)

Matej Pavlovic

2022/03/04 12:39:22

Implementing a production-grade networking module for exchanging mirbft messages (including dealing with unresponsive nodes, flaky network connections, etc.) or exploring which parts of Eudico can be used for that and using them.

Marko Vukolic

2022/02/28 14:52:07

- [ ] In

How much dependency on Eudico is there here? (Edited)

Matej Pavlovic

2022/03/04 12:41:02

Some dependency. We need to design a "configuration interface" and have Eudico use it whenever it decides to reconfigure.

Marko Vukolic

2022/02/28 14:52:33

- [ ] Integration with

These seem relaively small items. Please prioritize them (Edited)

Matej Pavlovic

2022/03/04 12:45:25

Yes, a persistent request store is quite small and, especially if we don't try to optimize it too much, can probably be done pretty fast. The persistent WAL and node restarts can be a pretty tricky thing though, since all the components of MirBFT must be made to support it. I.e., be able to not just write entries to the WAL and read them back (that we almost have already) but also restore their state from the WAL after crashing at an arbitrary point in time - this will probably be the hardest.

Marko Vukolic

2022/02/28 14:53:37

- [ ] Integrati

This can also be left to late Q3 (in the limit to Q4, but we should get some sense earlier) (Edited)

Marko Vukolic

2022/02/28 14:55:53

## Milestone 4: Robust and tested consensus protocol

Pls try to put P1 (Priority 1) and P2 (Priority 2) tags to each of these bullets (Edited)

Marko Vukolic

2022/03/07 15:10:44

When: Estimates to be added during execution of Milestone #1

Can we have a rough and conservative estimate earlier? like now :) ? (Edited)

Jorge Soares

2022/03/07 15:12:25

When: Estimates to be added during execution of Milestone #1

*very* tentative: end of June (Edited)

owned this note changed 3 years ago

Linked with GitHub

Marko Vukolic

2022/02/28 14:36:02

Milestone

we call this MVP? (Edited)

Matej Pavlovic

2022/02/28 16:12:10

No. MVP needs at least persistence and reconfiguration on top of Milestone #1.

Marko Vukolic

2022/02/28 14:36:19

Milestone

When can this one start? (Edited)

Matej Pavlovic

2022/02/28 16:12:32

Matej: Tomorrow Denis: When done with Y5

Marko Vukolic

2022/02/28 14:37:04

need to be implemented

first two bullets parallelizable (Edited)

Matej Pavlovic

2022/02/28 16:13:15

Yes, embarrassingly so.

Marko Vukolic

2022/02/28 14:38:08

(PBFT)

did we consider alternative choices to PBFT? (Edited)

Matej Pavlovic

2022/02/28 16:15:02

Only superficially. The choice of PBFT is mostly Matej's personal subjective one - this is the protocol he understands the best provide a reasonable implementation of rather fast.

Marko Vukolic

2022/02/28 14:40:55

Is it realistic to plan this to have it finished by the end of Q3 (assuming Sergey+Denis+Matej)? (Edited)

Matej Pavlovic

2022/02/28 16:15:59

Gut feeling: yes Objective assessment: hard to say yet.

Marko Vukolic

2022/02/28 14:46:25

## Milestone 4: Robust and tested consensus protocol

COuld we break this at least in sequential and/or paralelizable work items (Edited)

Marko Vukolic

2022/02/28 14:50:03

Integration with

This is B4 in our plan - right? (Edited)

Matej Pavlovic

2022/03/04 12:47:05

yes

Marko Vukolic

2022/02/28 14:51:41

Tests

If we get a testing strategy by EoQ3 but tests done in Q4 (leveraging also the testnet) this is ok (Edited)

Marko Vukolic

2022/02/28 14:51:52

Networking

What does this entail? (Edited)

Matej Pavlovic

2022/03/04 12:39:22

Marko Vukolic

2022/02/28 14:52:07

- [ ] In

How much dependency on Eudico is there here? (Edited)

Matej Pavlovic

2022/03/04 12:41:02

Some dependency. We need to design a "configuration interface" and have Eudico use it whenever it decides to reconfigure.

Marko Vukolic

2022/02/28 14:52:33

- [ ] Integration with

These seem relaively small items. Please prioritize them (Edited)

Matej Pavlovic

2022/03/04 12:45:25

Marko Vukolic

2022/02/28 14:53:37

- [ ] Integrati

This can also be left to late Q3 (in the limit to Q4, but we should get some sense earlier) (Edited)

Marko Vukolic

2022/02/28 14:55:53

## Milestone 4: Robust and tested consensus protocol

Pls try to put P1 (Priority 1) and P2 (Priority 2) tags to each of these bullets (Edited)

Marko Vukolic

2022/03/07 15:10:44

When: Estimates to be added during execution of Milestone #1

Can we have a rough and conservative estimate earlier? like now :) ? (Edited)

Jorge Soares

2022/03/07 15:12:25

When: Estimates to be added during execution of Milestone #1

*very* tentative: end of June (Edited)

Mir / ISS Implementation

tags: `Y3` `Y` `Mir`

This document describes what needs to be implemented for the mir library.
The lists are meant to be regularly updated and refined in smaller sub-tasks.

Milestone 2: static membership, no restarts, no faults

What:

A basic workable demo. To have one, at least the following components need to be implemented:

When:

Start: 2022-02-07
- Basic consensus protocol: 2022-03-25
- Eudico interface: 2022-04-01
End: 2022-04-30

Syntax	Example	Reference
# Header	Header	基本排版
- Unordered List	Unordered List
1. Ordered List	Ordered List
- [ ] Todo List	Todo List
> Blockquote	Blockquote
Bold font	Bold font
Italics font	Italics font
~~Strikethrough~~	~~Strikethrough~~
19^th^	19^th
H~2~O	H₂O
++Inserted text++	Inserted text
==Marked text==	Marked text
[link text](https:// "title")	Link
![image alt](https:// "title")	Image
`Code`	`Code`	在筆記中貼入程式碼
```javascript var i = 0; ```	`var i = 0;`	在筆記中貼入程式碼
:smile:		Emoji list
{%youtube youtube_id %}	Externals
$L^aT_eX$	L^aT_eX
:::info This is a alert area. :::	This is a alert area.

Mir / ISS Implementation

tags: `Y3` `Y` `Mir`

Milestone 2: static membership, no restarts, no faults

What:

When:

Milestone 3: usable consensus protocol - MVP

What:

When:

Milestone 4: Robust and tested consensus protocol

What:

When: July-September

Milestone 5: Narwhal implementation

What:

When: Q4, parallel with B4

Off critical path, parallelizable

Mir / ISS Implementation

tags: Y3 Y Mir

Milestone 2: static membership, no restarts, no faults

What:

When:

Milestone 3: usable consensus protocol - MVP

What:

When:

Milestone 4: Robust and tested consensus protocol

What:

When: July-September

Milestone 5: Narwhal implementation

What:

When: Q4, parallel with B4

Off critical path, parallelizable

tags: `Y3` `Y` `Mir`