The tool for synchronizing MySQL to TiDB loses data during synchronization

Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: mysql 同步到 tidb 的工具同步数据丢数据。

| username: TiDBer_bn4W3tfz

I followed the documentation above to synchronize data from MySQL to TiDB. After the synchronization was completed, it indicated that the synchronization was finished. However, a large amount of data was lost. Why is this happening?

| username: TiDB_C罗 | Original post link

How did it get lost, and how did you verify it?

| username: redgame | Original post link

Here is an example of a completed log.

| username: 有猫万事足 | Original post link

More detailed problem description is needed.

Wild guess: incomplete sharded data, only a few shards of data. :joy:

| username: zhanggame1 | Original post link

I found the logs, what are the characteristics of the missing data?

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

Please provide detailed steps and phenomena.

| username: linnana | Original post link

Lose full data or incremental data

| username: liuis | Original post link

It feels like a personal usage issue :sweat_smile: