pingcap / pingcap/tidb-binlog

If all of the syncs of data always be filtered, but checkpoint commit ts always doesn't update the new one.

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affects-6.1 affects-6.2 affects-6.3 affects-6.4 affects-6.5 affects-6.6 affects-7.0 affects-7.1 affects-7.5 affects-8.1 affects-8.5 severity/major type/bug
Dominant language
Go
Stars
291
Forks
131
Avg merge
5m
Merged PRs (30d)
2

Description

Bug Report

Please answer these questions before submitting your issue. Thanks!

  1. What did you do?
    If possible, provide a recipe for reproducing the error.

  2. What did you expect to see?
    Even though all of the syncs of data has been filtered, the checkpoint commit ts should update all the time.

  3. What did you see instead?

  4. Please provide the relate downstream type and version of drainer.
    (run drainer -V in terminal to get drainer's version)

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

Start by reproducing the checkpoint behavior with a drainer, checking the version with drainer -V, and using a case where every data sync is filtered. Trace the checkpoint commit timestamp handling and verify that the timestamp advances even when no data is synchronized; the issue does not name a file or test to begin with.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
data-engineering, databases
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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