Mysql binary logs

How to clean old binary logs

Here’s a little quick tip on cleaning your MythTV box of space cluttering binary logs. These are generated for every transaction that Mysql does. So if you have any corruption you can redo the tables. However, if you have a lot of listings data being imported into the table, then these can be pretty large.

mysql -u root --password mythconverg
Enter password:
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 53 to server version: 4.1.21-log

Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.

mysql> show master logs;
+——————-+———–+
| Log_name | File_size |
+——————-+———–+
| mythtv-bin.000001 | 79 |
| mythtv-bin.000002 | 79 |
| mythtv-bin.000003 | 79 |
| mythtv-bin.000004 | 50504 |
| mythtv-bin.000005 | 2767417 |
| mythtv-bin.000006 | 42523 |
| mythtv-bin.000007 | 79 |
| mythtv-bin.000008 | 7099399 |
| mythtv-bin.000009 | 60102 |
| mythtv-bin.000010 | 23028247 |
| mythtv-bin.000011 | 13157557 |
| mythtv-bin.000012 | 3300816 |

mysql> purge master logs to ‘mythtv-bin.010’;