StackExchange / StackExchange/StackExchange.Redis
Poor message balancing between replicas using Redis Sentinel.
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- Dominant language
- C#
- Stars
- 6.2k
- Forks
- 1.6k
- Avg merge
- 1d 15h
- Merged PRs (30d)
- 43
Description
The current distribution of messages between replicas is uneven.
The replica following the master in the list of servers is selected more often than others.
In the configuration there is a master and two replicas:
- the first replica receives 66% of messages
- the second replica receives 34%.
I propose the following fix issue: https://github.com/StackExchange/StackExchange.Redis/pull/2553
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing pull request 2553 and the Redis Sentinel replica-selection path described in this issue. Verify the reported 66%/34% distribution and confirm that message selection is balanced across both replicas.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp, redis
- Domain
- distributed-systems
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100