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Unsupported redo log format
Posted by: Jack Waterhouse
Date: February 23, 2020 02:21PM


We moved our server from Centos 7 to Centos 8, and mysqld from 5.6 to 8.

We can't start mysqld now. The log says:

2020-02-23T20:04:43.137686Z 1 [ERROR] [MY-013090] [InnoDB] Unsupported redo log format (0). The redo log was created before MySQL 5.7.9
2020-02-23T20:04:43.137793Z 1 [ERROR] [MY-012930] [InnoDB] Plugin initialization aborted with error Generic error.
2020-02-23T20:04:43.571663Z 1 [ERROR] [MY-011013] [Server] Failed to initialize DD Storage Engine.
2020-02-23T20:04:43.572338Z 0 [ERROR] [MY-010020] [Server] Data Dictionary initialization failed.
2020-02-23T20:04:43.572830Z 0 [ERROR] [MY-010119] [Server] Aborting
2020-02-23T20:04:43.574615Z 0 [System] [MY-010910] [Server] /usr/libexec/mysqld: Shutdown complete (mysqld 8.0.17) Source distribution.

If I understand this correctly, our earlier files for InnoDB are in a format that's no longer supported.

Can we convert them to the new format (without losing any of their content)? If so, how?



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Unsupported redo log format
February 23, 2020 02:21PM

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