常用數據庫狀態查詢語句

數據庫全局狀態

SHOW GLOBAL status

1. 查看binglog相關變量

SHOW VARIABLES LIKE '%log_bin%'
Variable_name Value
log_bin ON
log_bin_basename /usr/local/mysql/data/mysql-bin
log_bin_index /usr/local/mysql/data/mysql-bin.index
log_bin_trust_function_creators OFF
log_bin_use_v1_row_events OFF
sql_log_bin ON 
SHOW VARIABLES LIKE '%binlog%'
Variable_name Value comment
binlog_cache_size 32768
binlog_checksum NONE
binlog_direct_non_transactional_updates OFF
binlog_format ROW
binlog_max_flush_queue_time 0
binlog_order_commits ON
binlog_row_image FULL
binlog_rows_query_log_events OFF
binlog_stmt_cache_size 32768
innodb_api_enable_binlog OFF
innodb_locks_unsafe_for_binlog OFF
max_binlog_cache_size 18446744073709547520
max_binlog_size 1073741824 單個binlog文件的最大值
max_binlog_stmt_cache_size 18446744073709547520
sync_binlog 0

2. 查看binlog狀態

SHOW MASTER STATUS
File Position Binlog_Do_DB Binlog_Ignore_DB Executed_Gtid_Set
mysql-bin.000006 7090901

3. 查看binlog內容

SHOW BINLOG EVENTS IN 'mysql-bin.000006'
Log_name Pos Event_type Server_id End_log_pos Info
mysql-bin.000006 7090300 Delete_rows 2 7090431 table_id: 145 flags: STMT_END_F
mysql-bin.000006 7090431 Xid 2 7090458 COMMIT /* xid=715784 */
mysql-bin.000006 7090458 Query 2 7090529 BEGIN
mysql-bin.000006 7090529 Table_map 2 7090633 table_id: 162 (onekick.onekick_user_info)
mysql-bin.000006 7090633 Delete_rows 2 7090874 table_id: 162 flags: STMT_END_F
mysql-bin.000006 7090874 Xid 2 7090901 COMMIT /* xid=716165 */

4. 查看binlog所在目錄

SHOW VARIABLES LIKE 'datadir'
Variable_name Value
datadir /usr/local/mysql/data/
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