MySQL Forums
Forum List  »  InnoDB

ib_logfile0 differnce in size mysql 5.5.28 exception
Posted by: Venkatesh Ramanujam
Date: February 06, 2018 08:11AM

I am using mysql 5.5.28

got the below exception while starting mysql

180125 02:59:42 mysqld_safe Starting mysqld daemon with databases from /opt/custom/data/mysql/
180125 2:59:42 [Warning] /usr/sbin/mysqld: ignoring option '--character-set-client-handshake' due to invalid value 'utf8'
180125 2:59:43 [Note] Plugin 'FEDERATED' is disabled.
180125 2:59:43 InnoDB: The InnoDB memory heap is disabled
180125 2:59:43 InnoDB: Mutexes and rw_locks use GCC atomic builtins
180125 2:59:43 InnoDB: Compressed tables use zlib 1.2.3
180125 2:59:43 InnoDB: Using Linux native AIO
180125 2:59:43 InnoDB: Initializing buffer pool, size = 4.0G
180125 2:59:43 InnoDB: Completed initialization of buffer pool
InnoDB: Error: log file ./ib_logfile0 is of different size 0 4091904 bytes
InnoDB: than specified in the .cnf file 0 5242880 bytes!
180125 2:59:43 [ERROR] Plugin 'InnoDB' init function returned error.
180125 2:59:43 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
180125 2:59:43 [ERROR] Unknown/unsupported storage engine: InnoDB
180125 2:59:43 [ERROR] Aborting



When we started looking for the issue we found out that my.cnf was modified and there was a copy of MySql DB kept under /tmp folder and the same file was null in the actual mysql folder we copied the file from /tmp and tried to restart the DB when we got the error saying that the DB is corrupt

but when does my.cnf gets corrupted ? we haven't modified the my.cnf and no other application changes it. whenever mysql server crashes / when the mysql process gets killed by kill -9 does the my.cnf file configuration gets modified ?

Options: ReplyQuote


Subject
Views
Written By
Posted
ib_logfile0 differnce in size mysql 5.5.28 exception
228
February 06, 2018 08:11AM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.