ENSEEIHT/projet-systemes-algorithmes-repartis
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Commentaires cluster change + slide 19

Browse source
This commit is contained in:
clemcnt 2023-01-12 13:23:37 +01:00
parent 3e1f1f9853
commit b8f6a93fab
1 changed files with 18 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
slides.md
View file

@ -395,6 +395,16 @@ AppendEntries RPCs include <index, term> of entry preceding new one(s)
![bg 80%](figs/cluster-change.png) ![bg 80%](figs/cluster-change.png)
<!--
- Dashed lines show configuration entries that have been created but not committed,
- solid lines show the latest committed configuration entry.
- The leader first creates the Cold,new configuration entry in its log and commits it to Cold,new (a majority of Cold and a majority of Cnew).
- Then it creates the Cnew entry and commits it to a majority of Cnew.
- There is no point in time in which Cold and Cnew can both make decisions independently.
-->
<!-- Clément --> <!-- Clément -->
--- ---
@ -427,6 +437,14 @@ AppendEntries RPCs include <index, term> of entry preceding new one(s)
![bg 90%](https://ongardie.net/static/coreosfest/slides/timeoutcdf.svg) ![bg 90%](https://ongardie.net/static/coreosfest/slides/timeoutcdf.svg)
<!--
- a small amount of randomization in the election timeout is enough to avoid split votes in elections.
- In the absence of randomness, leader election consistently took longer than 10 seconds in our tests due to many split votes. Adding just 5ms of randomness helps significantly, resulting in a median downtime of 287ms.
- Using more randomness improves worst-case behavior: with 50ms of randomness the worstcase completion time (over 1000 trials) was 513ms.
-->
<!-- Clément --> <!-- Clément -->
--- ---