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[mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid back_log=600 max_connections=3000 max_connect_errors=6000 table_cache=614 external-locking=FALSE max_allowed_packet=32M sort_buffer_size=2M join_buffer_size=2M thread_cache_size=300 thread_concurrency=8 query_cache_size=64M query_cache_limit=4M query_cache_min_res_unit=2k thread_stack=192K transaction_isolation=READ-COMMITTED tmp_table_size=256M max_heap_table_size=256M long_query_time=2 expire_logs_days=7 key_buffer_size=2048M read_buffer_size=1M read_rnd_buffer_size=16M bulk_insert_buffer_size=64M innodb_additional_mem_pool_size=16M innodb_buffer_pool_size=2048M innodb_data_file_path=ibdata1:1024M:autoextend innodb_file_io_threads=4 innodb_thread_concurrency=8 innodb_flush_log_at_trx_commit=2 innodb_log_file_size=128M innodb_log_files_in_group=3 innodb_max_dirty_pages_pct=90 innodb_lock_wait_timeout=120 innodb_file_per_table=0
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原文地址：http://www.cnblogs.com/ice-line/p/5646449.html
