mysql rr 查詢出現的事務狀況

select * from  INFORMATION_SCHEMA.INNODB_TRX\G 

The INNODB_TRX table contains information about every transaction (excluding read-only transactions) currently executing inside InnoDB, 

including whether the transaction is waiting for a lock, when the transaction started, and the SQL statement the transaction is executing, if any.


INNODB_TRX 表包含 信息關於每一個事務(排除只讀事務)當前執行的在InnoDB中,


包含事務是不是等待一個鎖, 當事務啓動時

1. 開始事務,運行一個短查詢:

開啓一個事務 運行一個查詢：
mysql>  select connection_id();   
+-----------------+
| connection_id() |
+-----------------+
|               2 |
+-----------------+
1 row in set (0.00 sec)

mysql> start transaction;
Query OK, 0 rows affected (0.00 sec)

mysql> select * from t200;
ERROR 1046 (3D000): No database selected
mysql> select * from zjzc.t200;
+-----+---------+-------------+--------+
| sn  | phoneNo | channelType | status |
+-----+---------+-------------+--------+
|   1 |       1 |           2 |      1 |
|   2 |       2 |           2 |      2 |
|   3 |       3 |           2 |      3 |
|   4 |       4 |           2 |      4 |
|   5 |       5 |           2 |      5 |
|   6 |       6 |           2 |      6 |
|   7 |       7 |           2 |      7 |
|   8 |       8 |           2 |      8 |
|   9 |       9 |           2 |      9 |
|  10 |      10 |           2 |     10 |
|  11 |      11 |           2 |     11 |
|  12 |      12 |           2 |     12 |
|  13 |      13 |           2 |     13 |
|  14 |      14 |           2 |     14 |
|  15 |      15 |           2 |     15 |
|  16 |      16 |           2 |     16 |
|  17 |      17 |           2 |     17 |
|  18 |      18 |           2 |     18 |
|  19 |      19 |           2 |     19 |
|  20 |      20 |           2 |     20 |
|  21 |      21 |           2 |     21 |
|  22 |      22 |           2 |     22 |
|  23 |      23 |           2 |     23 |
|  24 |      24 |           2 |     24 |
|  25 |      25 |           2 |     25 |
|  26 |      26 |           2 |     26 |
|  27 |      27 |           2 |     27 |
|  28 |      28 |           2 |     28 |
|  29 |      29 |           2 |     29 |
|  30 |      30 |           2 |     30 |
|  31 |      31 |           4 |     31 |
|  34 |      34 |           3 |     34 |
|  39 |      39 |           3 |     39 |
|  41 |      41 |           1 |     41 |
|  46 |      46 |           1 |     46 |
| 100 |       1 |           1 |      1 |
| 101 |       1 |           1 |      1 |
+-----+---------+-------------+--------+
37 rows in set (0.00 sec)



此時會出現事務:

mysql> select * from  INFORMATION_SCHEMA.INNODB_TRX\G;
*************************** 1. row ***************************
                    trx_id: 389256466
                 trx_state: RUNNING
               trx_started: 2016-12-19 12:39:40
     trx_requested_lock_id: NULL
          trx_wait_started: NULL
                trx_weight: 0
       trx_mysql_thread_id: 2
                 trx_query: NULL
       trx_operation_state: NULL
         trx_tables_in_use: 0
         trx_tables_locked: 0
          trx_lock_structs: 0
     trx_lock_memory_bytes: 360
           trx_rows_locked: 0
         trx_rows_modified: 0
   trx_concurrency_tickets: 0
       trx_isolation_level: REPEATABLE READ
         trx_unique_checks: 1
    trx_foreign_key_checks: 1
trx_last_foreign_key_error: NULL
 trx_adaptive_hash_latched: 0
 trx_adaptive_hash_timeout: 10000
          trx_is_read_only: 0
trx_autocommit_non_locking: 0
1 row in set (0.00 sec)

ERROR: 
No query specified


zabbix:/root/mysql# sh ./mon_mysql_all.sh 
,,,,,
2016-12-19 12:43:00,200,2,root,localhost,
 mysql[192.168.11.187]  processid[2] root@localhost in db[] hold  transaction time 200 

會出現事務




2.不開啓事務,直接運行大的查詢


mysql> select * from ClientActionTrack20151125;
ERROR 2006 (HY000): MySQL server has gone away
No connection. Trying to reconnect...
Connection id:    3
Current database: zjzc



mysql> select * from  INFORMATION_SCHEMA.INNODB_TRX\G;
*************************** 1. row ***************************
                    trx_id: 389259097
                 trx_state: RUNNING
               trx_started: 2016-12-19 12:50:55
     trx_requested_lock_id: NULL
          trx_wait_started: NULL
                trx_weight: 0
       trx_mysql_thread_id: 3
                 trx_query: select * from ClientActionTrack20151125
       trx_operation_state: fetching rows
         trx_tables_in_use: 1
         trx_tables_locked: 0
          trx_lock_structs: 0
     trx_lock_memory_bytes: 360
           trx_rows_locked: 0
         trx_rows_modified: 0
   trx_concurrency_tickets: 0
       trx_isolation_level: REPEATABLE READ
         trx_unique_checks: 1
    trx_foreign_key_checks: 1
trx_last_foreign_key_error: NULL
 trx_adaptive_hash_latched: 0
 trx_adaptive_hash_timeout: 10000
          trx_is_read_only: 1
trx_autocommit_non_locking: 1
1 row in set (0.11 sec)

ERROR: 
No query specified