tarantool / tarantool/tarantool

Warn if there is time skew between master and replica

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#12,037 0 comments 0 reactions 0 assignees View on GitHub

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feature replication
Dominant language
Lua
Stars
3.7k
Forks
419
Avg merge
1d 23h
Merged PRs (30d)
88

Description

Time skew between a master and a replica may result in bugs both in Tarantool core (#12036) and in application logic. Let's detect this and print a warning if the time skew is too big.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file or test is named. Start by tracing Tarantool's master-replica time and replication handling, then identify the existing warning or logging path. Done means detecting excessive clock skew and emitting a warning without disrupting replication, with coverage for skew above and below the selected limit.

Written by the indexing model from the issue text.

Assessment

Tech stack
lua
Domain
databases, distributed-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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