pingcap/tiflow

Verify whether all MQ output protocol handles time zones correctly

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#1,639 opened on Apr 12, 2021

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component/sinkhelp wanted

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Description

Recently it has come to our attention that our Avro output does not handle correctly the situation where the --tz option used in TiCDC is different from the local time zone. We need to verify whether all our protocols can handle time zones correctly, and, if not, under what condition things will go wrong and whether there is any workaround.

Checklist

  • Open Protocol
  • Canal (Protobuf)
  • Canal (JSON)
  • Maxwell
  • Avro #1615

Contributor guide

Research direction
Investigate each MQ output protocol (Open Protocol, Canal Protobuf, Maxwell, Avro) for time zone handling by writing test cases that simulate different tz options and comparing output timestamps with expected values. Focus on the difference between local time zone and the configured tz.
Tech stack
go
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70