How do I create a log file in mysql?

How do I create a log file in mysql?

Enable log files

1. Create the /etc/my.cnf options file with the following definitions that enable the log files automatically: [mysqld] log-bin log log-error log-slow-queries. By default, the logs are placed in the data directory /pathname/mysql/data .
2. Stop and start the MySQL server to activate the changes to the /etc/my.

Does mysql have a log file?

By default no log files are enabled in MYSQL. All errors will be shown in the syslog ( /var/log/syslog ).

What is log file in mysql?

MySQL Server has several logs that can help you find out what activity is taking place. By default, the server writes files for all enabled logs in the data directory. You can force the server to close and reopen the log files (or in some cases switch to a new log file) by flushing the logs.

How to enable general log file in MySQL?

Go to /etc/mysql/mysql.conf.d. open the mysqld.cnf. and enable the below lines. general_log_file = /var/log/mysql/mysql.log general_log = 1. restart the MySQL with this command /etc/init.d/mysql restart. go to /var/log/mysql/ and check the logs. Share.

How to enable mysql query log in PHP?

Gist of the story, don’t put general_log=1 in the .cnf file. Instead use set global general_log =1 for a brief duration just to log enough to find out what you are trying to find out and then turn it off. In phpMyAdmin 4.0, you go to Status > Monitor.

How to turn on logging in MySQL console?

Alternately, to turn on logging from MySQL console (must also specify log file location somehow, or find the default location): Also note that there are additional options to log only slow queries, or those which do not use indexes. Take a look on this answer to another related question.

How to change the write permissions in MySQL?

Add the mysqld user to the group that has write permissions on your target directories (convenient, but not as secure) or remember to change your target directory permissions before and after you write the outfile. you can create a directory that is writable by the user that is running mysqld (usually “mysql”) and write the file there.