Jan 192015
A MySQL default setup is easily carried out on a Debian or Ubuntu system with a call to apt-get:
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sudo apt-get install mysql-client mysql-server |
However, this command fails if we are installing MySQL 5.5 on a system running inside a virtual machine using OpenVZ virtualization technology.
The installation prints error messages that make reference to errors in the execution of io_setup() while using Linux native AIO (Asynchronous I/O)
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141009 1:56:52 InnoDB: Using Linux native AIO 141009 1:56:52 InnoDB: Warning: io_setup() failed with EAGAIN. Will make 5 attempts before giving up. InnoDB: Warning: io_setup() attempt 1 failed. InnoDB: Warning: io_setup() attempt 2 failed. InnoDB: Warning: io_setup() attempt 3 failed. InnoDB: Warning: io_setup() attempt 4 failed. InnoDB: Warning: io_setup() attempt 5 failed. 141009 1:56:54 InnoDB: Error: io_setup() failed with EAGAIN after 5 attempts. InnoDB: You can disable Linux Native AIO by setting innodb_use_native_aio = 0 in my.cnf 141009 1:56:54 InnoDB: Fatal error: cannot initialize AIO sub-system 141009 1:56:54 [ERROR] Plugin 'InnoDB' init function returned error. 141009 1:56:54 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 141009 1:56:54 [ERROR] Unknown/unsupported storage engine: InnoDB 141009 1:56:54 [ERROR] Aborting |
If we have stepped into this issue, we can fix it as follows:
First, uninstall completely the failed mysql installation:
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sudo apt-get purge mysql-server mysql-client mysql-common mysql-server-5.5 |
Next, create a text file /etc/my.cnf with the following content:
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[mysqld] innodb_use_native_aio = 0 |
Finally, install again mysql:
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sudo apt-get install mysql-client mysql-server |
And that’s all!
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