MySQL binlog log cleanup

MySQL Connection number definition ：

Number of operations performed per second （QPS, Company ： Time / second ）

Number of transactions executed per second （TPS, Company ： Time / second ）

View the current bin-log Log time deletes the data before a certain time period （ As before 7 The log of days is vip-binlog.000438）

Log in and copy

      
      

       
       ll  /mysql/log/binlog/
       
       

       
       11 month  
       
       10 
       
       13:00 vip-binlog.000434
       
       

       
       11 month  
       
       11 
       
       06:10 vip-binlog.000438
       
       

       
       11 month  
       
       12 
       
       06:10 vip-binlog.000439
      
      
      
      

       
       
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Log in to the database to delete 7 Days ago log vip-binlog.000438

Check to see how many binlog

Log in and copy

      
      

       
       mysql> show binary logs;
       
       
Log_name          | File_size 
       
       

       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       +
       
       --
       
       --
       
       --
       
       --
       
       --
       
       -
       
       
vip-binlog.000438 |  
       
       440508682
       
       
vip-binlog.000439 | 
       
       1073764380
       
       

       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       --
       
       +
       
       --
       
       --
       
       --
       
       --
       
       --
       
       -
      
      
      
      

       
       
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binlog Processing command

clear vip-binlog.000438 Other previous logs （ Except before this log time ）

Log in and copy

      
      

       
       mysql> purge binary logs to 
       
       'vip-binlog.000438';
      
      
      
      

       
       
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adopt bin-log Query data

Log in and copy

      
      

       
       mysqlbinlog  
       
       --base64
       
       -output
       
       =decode-rows 
       
       -r ezp-base-base64.log 
       
       -v ezp-base_binlog_mysqlbin.000164
       
       
 
       
       -r ezp-base-base64.log   Specify the makefile 
      
      
      
      

       
       
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Execute multiple log files

Log in and copy

      
      

       
       for i 
       
       in {141..329}; 
       
       do mysqlbinlog  
       
       --base64
       
       -output
       
       =decode-rows  
       
       -v vip-binlog.000
       
       $i|grep ed_rule_msg_wxopentemplet_base; 
       
       done
      
      
      
      

       
       
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see bin-log journal

Log in and copy

      
      

       
       ll /mysql/backup/backup-binlog
       
       
vip-binlog.000327
       
       
vip-binlog.000328
       
       
vip-binlog.000329
      
      
      
      

       
       
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modify MySQL maximum connection

Log in and copy

      
      

       
       mysql 
       
       -u root 
       
       -p
       
       
 View the current number of connections  
       
       
show processlist;
       
       
show status like 
       
       '%connect%';
       
       
 See the maximum number of connections 
       
       
show variables like 
       
       '%max_connections%';
       
       
 Set the maximum number of connections 
       
       

       
       set GLOBAL 
       
       max_connections
       
       =
       
       5000;
      
      
      
      

       
       
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