fix(p2p): prevent deadlock on simultaneous sending large message#4948
Merged
Erigara merged 1 commit intohyperledger-iroha:mainfrom Aug 7, 2024
Merged
Conversation
Signed-off-by: Shanin Roman <shanin1000@yandex.ru>
DCNick3
approved these changes
Aug 7, 2024
dima74
approved these changes
Aug 7, 2024
mversic
pushed a commit
that referenced
this pull request
Aug 30, 2024
Signed-off-by: Shanin Roman <shanin1000@yandex.ru>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Description
When 2 peers try to send each other huge messages they end up deadlocked.
I suspect that this happen when message is large enough that it's not possible to fully put it in the OS buffer.
Here is minimal example i was able to came up with which suffers from the same issue.
Solution was to lift sending data up to the
select!statement so peer can either read or write data simultaneously.Benefits
No deadlock.