tarantool / tarantool/tarantool
Support linearizable reads in non full-mesh topologies
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- Dominant language
- Lua
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- 1d 23h
- Merged PRs (30d)
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Description
Currenly linearizable transactions only work when the instance performing them is a replication source for a quorum of remote peers.
It would be more logical if linearizable transactions (reads, at least) would require a quorum of upstream connections, not downstream ones. This would allow to perform linearizable transactions on anonymous replicas.
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 tracing how linearizable transactions determine quorum membership in non-full-mesh replication topologies. Compare downstream replication-source checks with upstream connections, and define completion as allowing linearizable reads on anonymous replicas when the upstream quorum is available.
Written by the indexing model from the issue text.
Assessment
- Domain
- databases, distributed-systems
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100