If you use the MySQL server for Kaspersky Security Center, enable support of InnoDB and MEMORY storage and of UTF-8 and UCS-2 encodings.
Recommended settings for the my.ini file
To configure the my.ini file:
[mysqld] section of the my.ini file:sort_buffer_size = 10M
join_buffer_size = 20M
tmp_table_size = 600M
max_heap_table_size = 600M
key_buffer_size = 200M
innodb_buffer_pool_size = the real value must be no less than 80% of the expected KAV database size
innodb_thread_concurrency = 20
innodb_flush_log_at_trx_commit = 0 (in most cases, the server uses small transactions)
innodb_lock_wait_timeout = 300
max_allowed_packet = 32M
max_connections = 151
max_prepared_stmt_count = 12800
table_open_cache = 60000
table_open_cache_instances = 4
table_definition_cache = 60000
Note that the memory specified in the innodb_buffer_pool_size value is allocated at server startup. If the database size is smaller than the specified buffer size, only the required memory is allocated. The actual size of allocated memory is approximately 10 percent greater than the specified buffer size. Refer to the MySQL documentation for details.
It is recommended to use the parameter value innodb_flush_log_at_trx_commit = 0, because the values "1" or "2" negatively affect the operating speed of MySQL.