> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/error-codes/mariadb-error-codes-1900-to-1999/e1952.md).

# Error 1952: Unexpected GTID received from master after reconnect

| Error Code | SQLSTATE | Error                                 | Description                                                                                                                                                |
| ---------- | -------- | ------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1952       |          | ER\_SLAVE\_UNEXPECTED\_MASTER\_SWITCH | Unexpected GTID received from master after reconnect. This normally indicates that the master server was replaced without restarting the slave threads. %s |

## Possible Causes and Solutions

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