MySQL表不能修改、删除等操作，卡死、锁死情况的处理办法

时间:2019-11-20
本文章向大家介绍MySQL表不能修改、删除等操作，卡死、锁死情况的处理办法，主要包括MySQL表不能修改、删除等操作，卡死、锁死情况的处理办法使用实例、应用技巧、基本知识点总结和需要注意事项，具有一定的参考价值，需要的朋友可以参考一下。

show full processlist;

 //列出当前的操作process，看到很多处于waiting的process，说明已经有卡住的proces。

这里我们看到是sending data的这条语句卡住了mysql

再执行：

kill processid;  

kill 1693651;

//processid表示process的id，比如kill 3301，就会将id为3301的process杀死。

+---------+----------------------+-----------------+-------+------------------+---------+---------------------------------------------------------------+------------------------------------------------------------------------+-------------+----------------------+-----------+
| Id      | User                 | Host            | db    | Command          | Time    | State                                                         | Info                                                                   | Memory_used | Memory_used_by_query | CPU_time  |
+---------+----------------------+-----------------+-------+------------------+---------+---------------------------------------------------------------+------------------------------------------------------------------------+-------------+----------------------+-----------+
|      28 | rdsRepl              | localhost:51284 | NULL  | Binlog Dump GTID | 1220403 | Master has sent all binlog to slave; waiting for more updates | NULL                                                                   |       18117 |                 8208 |    239225 |
| 1676492 | root                 | localhost:9183  | sync  | Sleep            |    5394 |                                                               | NULL                                                                   |      895362 |                 8208 |  32741806 |
| 1688104 | root                 | localhost:11900 | sync  | Sleep            |    3766 |                                                               | NULL                                                                   |      268480 |                 8208 | 155952228 |
| 1689762 | root                 | localhost:12057 | xtemp | Query            |    1116 | Waiting for table metadata lock                               | SHOW TABLE STATUS                                                      |      813027 |                11024 |   5439530 |
| 1690466 | root                 | localhost:12632 | xtemp | Query            |     950 | Waiting for table metadata lock                               | SELECT TABLE_NAME, CHECK_OPTION, IS_UPDATABLE, SECURITY_TYPE, DEFINER  |      114628 |                 9776 |   5811522 |
| 1693651 | root                 | localhost:14234 | sync  | Query            |    1338 | Sending data                                                  | CREATE TABLE xtemp.yxy_transfer AS  SELECT c_date, SUM(is_reg) AS cnt_ |     1338135 |                15384 |   2542049 |
| 1693702 | root                 | localhost:14342 | sync  | Query            |    1302 | Waiting for table metadata lock                               | DROP TABLE IF EXISTS xtemp.yxy_transfer                                |       17149 |                 8208 |   2428293 |
| 1694006 | root                 | localhost:14584 | sync  | Query            |    1085 | Waiting for table metadata lock                               | DROP TABLE IF EXISTS xtemp.yxy_transfer                                |       17149 |                 8208 |   2397726 |
| 1694108 | root                 | localhost:14594 | xtemp | Query            |     936 | Waiting for table metadata lock                               | show create table xtemp.yxy_transfer                                   |       37856 |                 8208 |    953411 |
| 1694417 | root                 | localhost:14771 | xtemp | Query            |     762 | Waiting for table metadata lock                               | SELECT TABLE_NAME, CHECK_OPTION, IS_UPDATABLE, SECURITY_TYPE, DEFINER  |      111067 |                 9776 |    892068 |
| 1694515 | root                 | localhost:14869 | xtemp | Query            |     683 | Waiting for table metadata lock                               | SELECT TABLE_NAME, CHECK_OPTION, IS_UPDATABLE, SECURITY_TYPE, DEFINER  |      127905 |                 9776 |    831436 |
| 1694540 | root                 | localhost:14875 | xtemp | Query            |     651 | Waiting for table metadata lock                               | DROP TABLE IF EXISTS xtemp.yxy_transfer                                |       16638 |                 8208 |    138945 |
| 1694650 | root                 | localhost:1032  | xtemp | Query            |     572 | Waiting for table metadata lock                               | SELECT TABLE_NAME, CHECK_OPTION, IS_UPDATABLE, SECURITY_TYPE, DEFINER  |      117220 |                 9776 |    937266 |
| 1694666 | root                 | localhost:1033  | xtemp | Query            |       0 | starting                                                      | show full processlist                                                  |       16470 |                 8208 |    973631 |
| 1695318 | unauthenticated user | connecting host | NULL  | Connect          |       0 | login                                                         | NULL                                                                   |           0 |                    0 |         0 |
+---------+----------------------+-----------------+-------+------------------+---------+---------------------------------------------------------------+------------------------------------------------------------------------+-------------+----------------------+-----------+
15 rows in set (0.14 sec)
+---------+---------+------+-------+------------------+---------+---------------------------------------------------------------+-----------------------+-------------+----------------------+-----------+
| Id      | User    | Host | db    | Command          | Time    | State                                                         | Info                  | Memory_used | Memory_used_by_query | CPU_time  |
+---------+---------+------+-------+------------------+---------+---------------------------------------------------------------+-----------------------+-------------+----------------------+-----------+
|      28 | rdsRepl |xxx   | NULL  | Binlog Dump GTID | 1220453 | Master has sent all binlog to slave; waiting for more updates | NULL                  |       18117 |                 8208 |    239225 |
| 1676492 | root    |xxx   | sync  | Sleep            |    5444 |                                                               | NULL                  |      895362 |                 8208 |  32741806 |
| 1688104 | root    |xxx   | sync  | Sleep            |    3816 |                                                               | NULL                  |      268480 |                 8208 | 155952228 |
| 1689762 | root    |xxx   | xtemp | Sleep            |    1166 |                                                               | NULL                  |      428709 |                 8208 |   6319722 |
| 1690466 | root    |xxx   | xtemp | Sleep            |    1000 |                                                               | NULL                  |       20046 |                 8208 |   6517271 |
| 1694108 | root    |xxx   | xtemp | Sleep            |     986 |                                                               | NULL                  |       39912 |                 8208 |   1055550 |
| 1694417 | root    |xxx   | xtemp | Sleep            |     812 |                                                               | NULL                  |       16485 |                 8208 |   1390755 |
| 1694515 | root    |xxx   | xtemp | Sleep            |     733 |                                                               | NULL                  |       27155 |                 8208 |   1320086 |
| 1694540 | root    |xxx   | xtemp | Sleep            |     701 |                                                               | NULL                  |       85811 |                 8208 |  16689270 |
| 1694650 | root    |xxx   | xtemp | Sleep            |     622 |                                                               | NULL                  |       16470 |                 8208 |   1428922 |
| 1694666 | root    |xxx   | xtemp | Query            |       0 | starting                                                      | show full processlist |       16470 |                 8208 |   1351151 |
+---------+---------+------+-------+------------------+---------+---------------------------------------------------------------+-----------------------+-------------+----------------------+-----------+

原文地址：https://www.cnblogs.com/wqbin/p/11900653.html

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