Backport of [NET-6459] Fix issue with wanfed lan ip conflicts. into release/1.15.x#19521
Merged
hc-github-team-consul-core merged 1 commit intorelease/1.15.xfrom Nov 6, 2023
Conversation
hc-github-team-consul-core
force-pushed
the
backport/derekm/NET-6459/wanfed-oom/needlessly-premium-sculpin
branch
from
e97bfe4 to
149ebfd
Compare
github-team-consul-core-pr-approver
approved these changes
Nov 6, 2023
Collaborator
github-team-consul-core-pr-approver
left a comment
github-team-consul-core-pr-approver
left a comment
There was a problem hiding this comment.
Auto approved Consul Bot automated PR
hc-github-team-consul-core
deleted the
backport/derekm/NET-6459/wanfed-oom/needlessly-premium-sculpin
branch
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Backport
This PR is auto-generated from #19503 to be assessed for backporting due to the inclusion of the label backport/1.15.
The below text is copied from the body of the original PR.
Prior to this commit, the connection pools were unaware which datacenter the connection was associated with. This meant that any time servers with overlapping LAN IP addresses and node shortnames existed, they would be incorrectly co-located in the same pool. Whenever this occurred, the servers would get stuck in an infinite loop of forwarding RPCs to themselves (rather than the intended remote DC) until they eventually run out of memory.
Most notably, this issue can occur whenever wan federation through mesh gateways is enabled.
This fix adds extra metadata to specify which DC the connection is associated with in the pool.
Overview of commits