Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

BOLT #7: Make channel_update always have htlc_maximum_msat. #996

Closed
wants to merge 2 commits into from

Conversation

rustyrussell
Copy link
Collaborator

@rustyrussell rustyrussell commented May 31, 2022

I think everyone sets this. Vastly simplifies parsing.

Indeed, every single of the 149964 channel updates seen by my node has his set.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
@cdecker
Copy link
Collaborator

cdecker commented May 31, 2022

ACK 466317a

Copy link
Collaborator

@Roasbeef Roasbeef left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM 🏂

Would be good to run some basic analysis just to check what % of channels aren't setting it.

Copy link
Contributor

@vincenzopalazzo vincenzopalazzo left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Concept ack for the "metrics"

Copy link
Collaborator

@t-bast t-bast left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Concept ACK, I think we can remove even more stuff

07-routing-gossip.md Show resolved Hide resolved
Suggested-by: @t-bast
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
t-bast
t-bast previously approved these changes Jun 1, 2022
Copy link
Collaborator

@t-bast t-bast left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

ACK f99b549

@t-bast
Copy link
Collaborator

t-bast commented Jun 6, 2022

As noted in lightningdevkit/rust-lightning#1515 and discussed during the dev summit, it would also make sense to verify that every implementation sets this value to max_htlc_value_in_flight_msat instead of using the channel capacity.

@t-bast
Copy link
Collaborator

t-bast commented Jun 10, 2022

Retracting my ACK, I made a proposal at #999 that would benefit from message flags (but I did make htlc_maximum_msat mandatory, which was the goal of this PR).

@arik-so
Copy link

arik-so commented Jul 15, 2022

I have just downloaded a fresh batch of 134k channel updates from an LND peer; of those channel updates, 364 don't have an HTLC max set, which is 0.27%.

I have separately downloaded 161k updates from a different peer, and got 399 instances of an unset HTLC max, or 0.25%.

t-bast added a commit to ACINQ/eclair that referenced this pull request Aug 3, 2022
The specification is removing support for old channel updates that didn't
include an `htlc_maximum_msat` (lightning/bolts#996).

Every implementation has been generating updates containing this field for
years, so we can safely reject updates that don't contain it.
t-bast added a commit to ACINQ/eclair that referenced this pull request Aug 3, 2022
The specification is removing support for old channel updates that didn't
include an `htlc_maximum_msat` (lightning/bolts#996).

Every implementation has been generating updates containing this field for
years, so we can safely reject updates that don't contain it.
t-bast added a commit to ACINQ/eclair that referenced this pull request Aug 3, 2022
The specification is removing support for old channel updates that didn't
include an `htlc_maximum_msat` (lightning/bolts#996).

Every implementation has been generating updates containing this field for
years, so we can safely reject updates that don't contain it.
t-bast added a commit to ACINQ/eclair that referenced this pull request Aug 8, 2022
The specification is removing support for old channel updates that didn't
include an `htlc_maximum_msat` (lightning/bolts#996).

Every implementation has been generating updates containing this field for
years, so we can safely reject updates that don't contain it.
@Roasbeef
Copy link
Collaborator

Replaced by #999

@Roasbeef Roasbeef closed this Aug 15, 2022
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

7 participants