I have a number of error messages like this in my error.log file referencing different files that can't be opened when I start my mariadb 10.4.8 server:
2019-09-30 17:38:19 0 [ERROR] InnoDB: Cannot open datafile for read-only: '/tmp/#sql50b_8808_1.ibd' OS error: 71 2019-09-30 17:38:19 0 [ERROR] InnoDB: Cannot read first page of './tmp/#sql50b_8808_1.ibd' I/O error 2019-09-30 17:38:19 0 [Note] InnoDB: Cannot read first page in datafile: ./tmp/#sql50b_8808_1.ibd, Space ID:18446744073709551615, Flags: 0 2019-09-30 17:38:19 0 [ERROR] InnoDB: Operating system error number 2 in a file operation. 2019-09-30 17:38:19 0 [ERROR] InnoDB: The error means the system cannot find the path specified. 2019-09-30 17:38:19 0 [ERROR] InnoDB: If you are installing InnoDB, remember that you must create directories yourself, InnoDB does not create them. 2019-09-30 17:38:19 0 [ERROR] InnoDB: Could not find a valid tablespace file for ``tmp`.`#sql50b_8808_1``. Please refer to https://mariadb.com/kb/en/innodb-data-dictionary-troubleshooting/ for how to resolve the issue. 2019-09-30 17:38:19 0 [Warning] InnoDB: Ignoring tablespace for `tmp`.`#sql50b_8808_1` because it could not be opened.
I don't have a database named
tmp, so the instructions for data dictionary troubleshooting haven't been helpful.
I can't find any files that start with
#sql anywhere in my file system, but
SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE '%#sql%';
returns 65 rows, including one associated with the file described above. Is there some way to clean this up so MariaDB doesn't try to open these non-existent files?