Question

我在单独的数据库服务器中配置了MySQL。最初，CPU使用率很高。我在这里粘贴/etc/mysql/my.cnf详细信息

innodb_buffer_pool_size=4G
innodb_buffer_pool_size = 9G
innodb_buffer_pool_instances=8

innodb_buffer_pool_chunk_size没有特定配置。因此是128 M

为解决CPU使用率过高的问题，我通过添加/更新一些配置来更新/etc/mysql/my.cnf文件，然后不再启动服务器

query_cache_limit       = 16M
query_cache_type        = ON
query_cache_size        = 128M 
innodb_buffer_pool_size = 9G
max_allowed_packet      = 16M
thread_stack            = 192K
innodb_log_file_size = 1768M
thread_cache_size       = 8
max_heap_table_size = 536870912
innodb_buffer_pool_instances=8
innodb_io_capacity = 1000
innodb_flush_method = O_DIRECT
innodb_flush_log_at_trx_commit = 0
myisam-recover = BACKUP
max_connections        = 1000

在这里，通过参考MySQL文档来添加配置，并且配置和配置也满足以下等式

innodb_buffer_pool_size = n times * (innodb_buffer_pool_chunk_size * innodb_buffer_pool_instances)

mysql-documentation

你知道我在做什么错吗？

Answer 1

多少内存？

innodb_buffer_pool_size   -- about 70% or RAM if you have more than 4GB of RAM
max_heap_table_size       -- 1% of RAM
query_cache_size          -- 0 or 50M
innodb_buffer_pool_instances  -- 1 per GB of buffer_pool
max_connections           -- 100 until you have a clear need for more

无法使用特定配置启动MySQL服务器

1 个答案: