[Zen2] Introduce LeaderChecker #33024
Merged
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
It is important that follower nodes periodically check that their leader is still healthy and that they remain part of its cluster. If these checks fail repeatedly then followers should attempt to find and join a new leader, possibly electing one in the process. The LeaderChecker, introduced in this commit, performs these periodic checks and deals with retries.
DaveCTurner
added
>enhancement
v7.0.0
:Distributed Coordination/Cluster Coordination
|
Pinging @elastic/es-distributed |
61 tasks
|
Failed CI because of #29880. @elasticmachine test this please. @ywelsch this failed CI for unrelated reasons, and is ready for a review. |
ywelsch
suggested changes
Sep 18, 2018
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Outdated
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Outdated
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Outdated
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Outdated
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Outdated
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/cluster/coordination/LeaderChecker.java
Outdated
Show resolved
Hide resolved
server/src/main/java/org/elasticsearch/transport/TransportService.java
Outdated
Show resolved
Hide resolved
test/framework/src/main/java/org/elasticsearch/cluster/coordination/DeterministicTaskQueue.java
Outdated
Show resolved
Hide resolved
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.
It is important that follower nodes periodically check that their leader is
still healthy and that they remain part of its cluster. If these checks fail
repeatedly then followers should attempt to find and join a new leader,
possibly electing one in the process. The LeaderChecker, introduced in this
commit, performs these periodic checks and deals with retries.