The AI Works community logo The Blockchain Works community logo The Functional Works community logo The Golang Works community logo The Java Works community logo The JavaScript Works community logo The Python Works community logo The Remote Works community logo The WorksHub company logo

We use cookies and other tracking technologies to improve your browsing experience on our site, analyze site traffic, and understand where our audience is coming from. To find out more, please read our privacy policy.

By choosing 'I Accept', you consent to our use of cookies and other tracking technologies.

We use cookies and other tracking technologies to improve your browsing experience on our site, analyze site traffic, and understand where our audience is coming from. To find out more, please read our privacy policy.

By choosing 'I Accept', you consent to our use of cookies and other tracking technologies. Less

We use cookies and other tracking technologies... More

Login or register
to publish this job!

Login or register
to save this job!

Login or register
to save interesting jobs!

Login or register
to get access to all your job applications!

Login or register to start contributing with an article!

Login or register
to see more jobs from this company!

Login or register
to boost this post!

Show some love to the author of this blog by giving their post some rocket fuel 🚀.

Login or register to search for your ideal job!

Login or register to start working on this issue!

Login or register
to save articles!

Login to see the application

Engineers who find a new job through Python Works average a 15% increase in salary 🚀

You will be redirected back to this page right after signin

ICS 7 - Allow consensus state updates with older headers

Issue Open
Pull requests: 0
Contributors: 0
Level: Intermediate
  • TeX
Issue Open
Pull requests: 0
Contributors: 0
Level: Intermediate
  • TeX

On GitHub

Specification of the interblockchain communication protocol (IBC).
More info >

Issue posted by: 
ancazamfir's avatar

Anca Zamfir

Description

In the presence of multiple relayers, it can happen that an updateClient transaction fails if its height is smaller than the on chain client state height.

It is possible that there are two relayers scanning for different items, X vs Y, and they require consensus state (CS) updates for same client on destination chain but at different heights. This could result on one of the relayer transaction to fail, as a clientUpdate for height h fails if the latest client height is H >=h.
Some analysis on the relayer logic, given the current ICS07 spec and module implementation, is attempted in informalsystems/ibc-rs#61

This issue is to investigate the possibility of allowing CS updates with heights smaller or equal than the current client state height, and make the required changes in ICS02 (e.g. checkValidityAndUpdateState line 1678) and ICS07 specs, cosmos-SDK and relayer implementations.

  • from-review
  • tao

Use Open Source to hire or get hired

On GitHub

Specification of the interblockchain communication protocol (IBC).
More info >

Issue posted by: 
ancazamfir's avatar

Anca Zamfir

Use Open Source to hire or get hired

ICS 7 - Allow consensus state updates with older headers
View on GitHub