[v24.3.x] leader_balancer: implement and use even_node_load_constraint #24440
Conversation
This file contains 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
Leader balancer treats all CPU cores available in the cluster as independent and tries to balance leadership among them and not among nodes (i.e. the objective is that each core has the same number of leaders, and not each node). This leads to unintuitive results, especially when the number of raft groups is comparable to the number of available shards. Add a low-priority node balancing constraint to fix that. (cherry picked from commit f0a4428)
Previously it didn't copy empty shards in the index. (cherry picked from commit f93b43a)
Makes it easier to read the stats. (cherry picked from commit 6db1730)
(cherry picked from commit 5695541)
Give more time for muted groups to unmute. (cherry picked from commit 049e258)
ztlpn
approved these changes
Dec 4, 2024
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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 of PR #24403