Fixing my.cnf on Fedora
Working with a Fedora 16 VM for my students (next term) and found that the MySQL Server’s my.cnf file worked with a Linux socket as opposed to a listener port, and that several configuration options where missing from the file. Here’s the default /etc/my.cnf file after the package installation from the Red Hat site:
[mysqld] # Settings user and group are ignored when systemd is used. # If you need to run mysqld under different user or group, # customize your systemd unit file for mysqld according to the # instructions in http://fedoraproject.org/wiki/Systemd datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid |
Without rebuilding the log files, this seemed like the cleanest replacement for the MySQL Server my.cnf for a development instance running on Fedora 16. If you’ve other suggestions, please let me know.
[mysqld] # Settings user and group are ignored when systemd is used. # If you need to run mysqld under different user or group, # customize your systemd unit file for mysqld according to the # instructions in http://fedoraproject.org/wiki/Systemd # Default directory. datadir=/var/lib/mysql # The TCP/IP Port the MySQL Server listens on. port=3306 # The Linux Socket the MySQL Server uses when not using a listener. # socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # The default storage engine that will be used when creating new tables. default-storage-engine=INNODB # Set the SQL mode to strict. sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION" # Set the maximum number of connections. max_connections=100 # Set the number of open tables for all threads. table_cache=256 # Set the maximum size for internal (in-memory) temporary tables. tmp_table_size=26M # Set how many threads should be kept in a cache for reuse. thread_cache_size=8 # MyISAM configuration. myisam_max_sort_file_size=100G myisam_sort_buffer_size=52M key_buffer_size=36M read_rnd_buffer_size=256K sort_buffer_size=256K # InnoDB configuration. innodb_data_home_dir=/var/lib/mysql innodb_additional_mem_pool_size=2M innodb_flush_log_at_trx_commit=1 innodb_log_buffer_size=1M innodb_buffer_pool_size=25M innodb_log_file_size=5M innodb_thread_concurrency=8 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid |
As always, I hope this helps somebody.
Thanks for this! Although the article is old, this worked perfectly with Fedora 17!
Thanks!
Scott
27 Jul 12 at 7:40 am
Yeah i have the same problem too…
While installing on Windows there is not any problem with my.cnf/my.ini. The default values are given as usual.
Why we see this kind of problem only in Fedora…
i am using Fedora 17.
Shahriyar Rzayev
20 Oct 12 at 5:13 am
Windows (the MySQL MSI file) comes with a configuration utility and one isn’t provided with Fedora. The configuration utility completes the
my.inifile for you on Windows and you have to do that manually on Fedora.maclochlainn
20 Oct 12 at 12:20 pm
Thanks for reply
i have found the great online tool for creating the best configuration file for your database…at the end it automatically creates a my.cnf that you can apply to your db…
https://tools.percona.com/wizard
Shahriyar Rzayev
30 Nov 12 at 2:08 am
That did the trick! Thank you very much!
Victor
20 May 13 at 3:58 am