> 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-3000-to-3099/e3030.md).

# Error 3030: Slave worker has stopped after at least one previous worker encountered an error when sl

| Error Code | SQLSTATE | Error                                            | Description                                                                                                                                                                                                                                                                                                                  |
| ---------- | -------- | ------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 3030       |          | ER\_SLAVE\_WORKER\_STOPPED\_PREVIOUS\_THD\_ERROR | Slave worker has stopped after at least one previous worker encountered an error when slave-preserve-commit-order was enabled. To preserve commit order, the last transaction executed by this thread has not been committed. When restarting the slave after fixing any failed threads, you should fix this worker as well. |

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