mysql日志详细解析
mysql> SHOWGLOBAL VARIABLES LIKE '%log%';+-----------------------------------------+-----------------------------------+
|Variable_name | Value |
+-----------------------------------------+-----------------------------------+
| back_log | 50 |
|binlog_cache_size | 32768 |
|binlog_direct_non_transactional_updates | OFF |
|binlog_format | MIXED |
|binlog_stmt_cache_size | 32768 |
|expire_logs_days | 0 |
| general_log | OFF #定义查询日志是否开启|
|general_log_file | /mydata/data/stu18.log #定义查询日志的文件地址名称 |
|innodb_flush_log_at_trx_commit | 1 |
|innodb_locks_unsafe_for_binlog | OFF |
|innodb_log_buffer_size | 8388608 |
|innodb_log_file_size | 5242880 |
|innodb_log_files_in_group | 2 |
|innodb_log_group_home_dir | ./ |
|innodb_mirrored_log_groups | 1 |
| log |OFF #是否开启日志（若开启则表示开启所有的日志功能） |
| log_bin | ON |
|log_bin_trust_function_creators | OFF |
| log_error | /mydata/data/stu18.magedu.com.err|
| log_output | FILE #日志的输出的位置 |
|log_queries_not_using_indexes | OFF |
|log_slave_updates | OFF |
|log_slow_queries | OFF |
|log_warnings | 1 |
|max_binlog_cache_size | 18446744073709547520 |
|max_binlog_size | 1073741824 |
|max_binlog_stmt_cache_size | 18446744073709547520 |
|max_relay_log_size | 0 |
| relay_log | |
|relay_log_index | |
|relay_log_info_file | relay-log.info |
|relay_log_purge | ON |
|relay_log_recovery | OFF |
|relay_log_space_limit | 0 |
|slow_query_log | OFF |
|slow_query_log_file | /mydata/data/stu18-slow.log |
| sql_log_bin | ON |
| sql_log_off | OFF |
| sync_binlog | 0 |
|sync_relay_log | 0 |
|sync_relay_log_info | 0 |
+-----------------------------------------+-----------------------------------+
41 rows in set(0.00 sec)
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