V7.1.1 tidbcdc resolved ts should not be less than checkpoint ts suspected bug

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Original topic: v7.1.1 tidbcdc resolved ts should not less than checkpoint ts 疑似bug

| username: porpoiselxj

  1. Use br backup to back up the source database data to storage, record the backupts, and then restore it to the downstream TiDB database (the version and configuration are exactly the same as the source database).
  2. Create a new changefeed with ticdc, specify start-ts as the above backupts, but the changefeed cannot progress and reports the error “resolved ts should not be less than checkpoint ts”, and cdc keeps restarting (possibly caused by this issue).

The operation process is ensured to be correct, it feels like a bug.

| username: 像风一样的男子 | Original post link

Has the GC time of the source database already exceeded your backup timestamp?

| username: porpoiselxj | Original post link

GC was not exceeded, GC was disabled before the backup, and the GC time is at least 3 hours before the backup timestamp.

| username: porpoiselxj | Original post link

Version 7.1.2 has a fix for this bug. Closing the thread.

| username: system | Original post link

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