MySql清除日志

PURGE MASTER LOGS before '2020-1-1'; 清除指定日期之前的二进制日志 
PURGE MASTER LOGS TO 'mysql-bin.000020'; 清除指定文件编号之前的二进制日志

root@xss:/usr/local/mysql/var# ls -liah
total 3.5G
57153761 drwx------ 4 mysql mysql 4.0K Mar 12 17:28 .
57147488 drwxr-xr-x 11 root mysql 4.0K Jan 31 14:31 ..
57158026 -rw-rw---- 1 mysql mysql 5.0M Mar 12 17:28 ib_logfile0
57158038 -rw-rw---- 1 mysql mysql 5.0M Mar 6 12:36 ib_logfile1
57156045 -rw-rw---- 1 mysql mysql 10M Mar 12 17:26 ibdata1
57153762 drwx------ 2 mysql mysql 4.0K Feb 1 13:06 mysql
57153766 -rw-rw---- 1 mysql mysql 19K Jan 31 14:31 mysql-bin.000001
57153836 -rw-rw---- 1 mysql mysql 718K Jan 31 14:31 mysql-bin.000002
57153838 -rw-rw---- 1 mysql mysql 865 Jan 31 14:31 mysql-bin.000003
57153837 -rw-rw---- 1 mysql mysql 125 Jan 31 14:31 mysql-bin.000004
57154285 -rw-rw---- 1 mysql mysql 125 Jan 31 15:10 mysql-bin.000005
57154295 -rw-rw---- 1 mysql mysql 125 Feb 1 03:01 mysql-bin.000006
57171378 -rw-rw---- 1 mysql mysql 377M Feb 1 11:39 mysql-bin.000007
57154853 -rw-rw---- 1 mysql mysql 20K Feb 1 13:01 mysql-bin.000008
57153937 -rw-rw---- 1 mysql mysql 378M Feb 1 13:08 mysql-bin.000009
57154819 -rw-rw---- 1 mysql mysql 11M Feb 1 15:04 mysql-bin.000010
57154283 -rw-rw---- 1 mysql mysql 303M Feb 4 16:48 mysql-bin.000011
57156109 -rw-rw---- 1 mysql mysql 1.1G Feb 15 23:23 mysql-bin.000012
57156229 -rw-rw---- 1 mysql mysql 517M Feb 23 10:55 mysql-bin.000013
57158984 -rw-rw---- 1 mysql mysql 318M Feb 27 14:23 mysql-bin.000014
57158040 -rw-rw---- 1 mysql mysql 269K Feb 27 14:26 mysql-bin.000015
57158042 -rw-rw---- 1 mysql mysql 290M Mar 3 04:22 mysql-bin.000016
57158070 -rw-rw---- 1 mysql mysql 133M Mar 4 09:44 mysql-bin.000017
57164854 -rw-rw---- 1 mysql mysql 71M Mar 5 22:18 mysql-bin.000018
57164965 -rw-rw---- 1 mysql mysql 498 Mar 5 22:18 mysql-bin.000019
57164967 -rw-rw---- 1 mysql mysql 106 Mar 5 22:18 mysql-bin.000020
57164977 -rw-rw---- 1 mysql mysql 106 Mar 5 22:18 mysql-bin.000021
57164978 -rw-rw---- 1 mysql mysql 106 Mar 5 22:18 mysql-bin.000022
57164979 -rw-rw---- 1 mysql mysql 106 Mar 5 22:18 mysql-bin.000023
57164980 -rw-rw---- 1 mysql mysql 106 Mar 5 22:18 mysql-bin.000024
57164981 -rw-rw---- 1 mysql mysql 106 Mar 5 22:18 mysql-bin.000025
57164982 -rw-rw---- 1 mysql mysql 7.7K Mar 5 22:18 mysql-bin.000026
57158115 -rw-rw---- 1 mysql mysql 4.3M Mar 6 14:39 mysql-bin.000027
57158073 -rw-rw---- 1 mysql mysql 24M Mar 6 23:46 mysql-bin.000028
57164848 -rw-rw---- 1 mysql mysql 93M Mar 8 18:03 mysql-bin.000029
57153914 -rw-rw---- 1 mysql mysql 8.9M Mar 8 22:05 mysql-bin.000030
57158178 -rw-rw---- 1 mysql mysql 5.6M Mar 11 12:16 mysql-bin.000031
57158151 -rw-rw---- 1 mysql mysql 164K Mar 12 17:22 mysql-bin.000032
57158175 -rw-rw---- 1 mysql mysql 712 Mar 12 17:26 mysql-bin.000033
57153942 -rw-rw---- 1 mysql mysql 106 Mar 12 17:28 mysql-bin.000034
57153764 -rw-rw---- 1 mysql mysql 646 Mar 12 17:28 mysql-bin.index
57154807 drwx------ 2 mysql mysql 4.0K Feb 1 13:06 xss
57153835 -rw-rw---- 1 mysql root 3.2K Mar 12 17:28 xss.err
57153915 -rw-rw---- 1 mysql mysql 4 Mar 12 17:28 xss.pid

mysql> PURGE MASTER LOGS TO 'mysql-bin.034'; 
ERROR 1373 (HY000): Target log not found in binlog index
mysql> PURGE MASTER LOGS TO 'mysql-bin.000034'; 
Query OK, 0 rows affected (0.53 sec)

root@xss:/usr/local/mysql/var# ls -liah
total 21M
57153761 drwx------ 4 mysql mysql 4.0K Mar 12 17:31 .
57147488 drwxr-xr-x 11 root mysql 4.0K Jan 31 14:31 ..
57158026 -rw-rw---- 1 mysql mysql 5.0M Mar 12 17:28 ib_logfile0
57158038 -rw-rw---- 1 mysql mysql 5.0M Mar 6 12:36 ib_logfile1
57156045 -rw-rw---- 1 mysql mysql 10M Mar 12 17:26 ibdata1
57153762 drwx------ 2 mysql mysql 4.0K Feb 1 13:06 mysql
57153942 -rw-rw---- 1 mysql mysql 106 Mar 12 17:28 mysql-bin.000034
57153764 -rw-rw---- 1 mysql mysql 19 Mar 12 17:31 mysql-bin.index
57154807 drwx------ 2 mysql mysql 4.0K Feb 1 13:06 xss
57153835 -rw-rw---- 1 mysql root 3.3K Mar 12 17:31 xss.err
57153915 -rw-rw---- 1 mysql mysql 4 Mar 12 17:28 xss.pid