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Editorial Team
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Asked: 2026-06-14T14:52:56+00:00

I had installed MySQL Server 5.5 on Windows Server 2008 R2 before 2 months

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I had installed MySQL Server 5.5 on Windows Server 2008 R2 before 2 months and it’s working till now. But suddenly MySQL Service goes down and I am not able to restart the service.
Error Message: 

121120 14:33:31 [Note] Plugin 'FEDERATED' is disabled.
121120 14:33:31 InnoDB: The InnoDB memory heap is disabled
121120 14:33:31 InnoDB: Mutexes and rw_locks use Windows interlocked functions
121120 14:33:31 InnoDB: Compressed tables use zlib 1.2.3
121120 14:33:31 InnoDB: Initializing buffer pool, size = 2.0G
121120 14:33:31 InnoDB: Completed initialization of buffer pool
InnoDB: Error: log file .\ib_logfile0 is of different size 0 95420416 bytes
InnoDB: than specified in the .cnf file 0 224395264 bytes!
121120 14:33:31 [ERROR] Plugin 'InnoDB' init function returned error.
121120 14:33:31 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
121120 14:33:31 [ERROR] Unknown/unsupported storage engine: INNODB
121120 14:33:31 [ERROR] Aborting

121120 14:33:31 [Note] C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld: Shutdown complete

How can I resolve this issue?

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1 Answer

  1. Editorial Team

    This is the error:

    InnoDB: Error: log file .\ib_logfile0 is of different size 0 95420416 bytes
InnoDB: than specified in the .cnf file 0 224395264 bytes!

    What you can do is search for that .cnf file and change the bytes from 224395264 to 95420416

    Mayby that helps….

    UPDATE
    as mentiod here: Change InnoDB Log File Size

    Can you delete the log file ( .\ib_logfile0 ) when the server isn’t running, and then the problem souldn’t be there anymore…

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