Home > mySQL troubleshooting > InnoDB: Unable to lock ./ibdata1, error: 37

InnoDB: Unable to lock ./ibdata1, error: 37

Today, I have start mysql with a central NAS storage. The error messages file show message following

InnoDB: Unable to lock ./ibdata1, error: 37
120514 16:41:29  InnoDB: Operating system error number 37 in a file operation.
InnoDB: Error number 37 means ‘No locks available’.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.5/en/operating-system-error-codes.html
InnoDB: Error in creating or opening ./ibdata1
120514 16:41:29 InnoDB: Could not open or create data files.
120514 16:41:29 InnoDB: If you tried to add new data files, and it failed here,
120514 16:41:29 InnoDB: you should now edit innodb_data_file_path in my.cnf back
120514 16:41:29 InnoDB: to what it was, and remove the new ibdata files InnoDB created
120514 16:41:29 InnoDB: in this failed attempt. InnoDB only wrote those files full of
120514 16:41:29 InnoDB: zeros, but did not yet use them in any way. But be careful: do not
120514 16:41:29 InnoDB: remove old data files which contain your precious data!
120514 16:41:29 [ERROR] Plugin ‘InnoDB’ init function returned error.
120514 16:41:29 [ERROR] Plugin ‘InnoDB’ registration as a STORAGE ENGINE failed.
120514 16:41:29 [ERROR] Unknown/unsupported storage engine: InnoDB
120514 16:41:29 [ERROR] Aborting
120514 16:41:29 [Note] /usr/sbin/mysqld: Shutdown complete

Solution: Add nolock option into nfs mount entry in /etc/fstab as below and restart netfs. The mysql can starts.

wtt.isilon.local:/ifs/wtt/dbdata                /dbdata  nfs     rsize=65536,wsize=65536,nolock


Categories: mySQL troubleshooting

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