DM Sync MySQL, Unexpected Termination

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Original topic: dm同步mysql,意外终止

| username: lanranguidao

[TiDB Usage Environment] Testing
[TiDB Version] v7.5
[Reproduction Path] What operations were performed when the issue occurred
The DM task started normally in the morning and data was synchronized normally. In the afternoon, the synchronization suddenly stopped without any task operations.
[Encountered Issue: Issue Phenomenon and Impact]
binlogstreamer.go:78 close sync with err: sync is being closed
[Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page

[Attachments: Screenshots/Logs/Monitoring]

| username: wangccsy | Original post link

Closed repeatedly.

| username: lanranguidao | Original post link

The main issue is that there was no operation; it just stopped on its own.

| username: 有猫万事足 | Original post link

tiup dmctl --master-addr <master_ip>:8261 query-status

Check the result.

| username: Jellybean | Original post link

Could you enable debug logging to see if there are any more obvious error logs?

| username: dba远航 | Original post link

Check the log information.

| username: 烂番薯0 | Original post link

Run it again?

| username: 路在何chu | Original post link

Are there any errors in the system logs?