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major / MySQLTuner-perl

MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.
GNU General Public License v3.0
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mysqltuner recommends variable-change thats already been set #770

Open C0RD opened 9 months ago

C0RD commented 9 months ago

MariaDB 10.11.6 MysqlTuner 2.5.2

-------- InnoDB Metrics ----------------------------------------------------------------------------                            
[--] InnoDB is enabled.                                                                                                         
[OK] InnoDB File per table is activated                                                                                         
[OK] InnoDB Buffer Pool size ( 6.0G ) under limit for 64 bits architecture: (17179869184.0G )                                   
[OK] InnoDB buffer pool / data size: 6.0G / 5.4G                                                                                
[!!] Ratio InnoDB log file size / InnoDB Buffer pool size (16.6666666666667%): 1.0G * 1 / 6.0G should be equal to 25%           
[--] Number of InnoDB Buffer Pool Chunk: 64 for 1 Buffer Pool Instance(s)                                                       
[OK] Innodb_buffer_pool_size aligned with Innodb_buffer_pool_chunk_size & Innodb_buffer_pool_instances                          
[OK] InnoDB Read buffer efficiency: 99.92% (1347586855 hits / 1348643358 total)                                                 
[OK] InnoDB Write Log efficiency: 94.56% (28402487 hits / 30036436 total)                                                       
[OK] InnoDB log waits: 0.00% (0 waits / 1633949 writes) 

[...]

-------- Recommendations ---------------------------------------------------------------------------                            
General recommendations:                                                                                                        
    Be careful, increasing innodb_log_file_size / innodb_log_files_in_group means higher crash recovery mean time               
Variables to adjust:                                                                                                            
    innodb_log_file_size should be (=1G) if possible, so InnoDB total log file size equals 25% of buffer pool size.

Setting of the DB is:

INNODB_LOG_FILE_SIZE    1073741824

there is NO 'innodb_log_files_in_group' which is used in the associated calculation in Line 6443.

maybe releated: https://github.com/major/MySQLTuner-perl/issues/565