来源：自学PHP网 时间：2015-04-16 10:51 作者： 阅读:次
[导读] author：skatetime:2012 06 25ERROR 126 (HY000): Incorrect key file for table 39; tmp sql_1d87_0 MYI 39;; try to repair it案例：mysql insert into t1 select * from t1;^[[AQuer...
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author：skate
time:2012/06/25
ERROR 126 (HY000): Incorrect key file for table '/tmp/#sql_1d87_0.MYI'; try to repair it
案例：
mysql> insert into t1 select * from t1;
^[[AQuery OK, 24576 rows affected (0.44 sec)
Records: 24576 Duplicates: 0 Warnings: 0
mysql> insert into t1 select * from t1;
Query OK, 49152 rows affected (1.90 sec)
Records: 49152 Duplicates: 0 Warnings: 0
mysql> insert into t1 select * from t1;
ERROR 126 (HY000): Incorrect key file for table '/tmp/#sql_1d87_0.MYI'; try to repair it
从上面的情况看，好似空间的问题，因为前几次insert都成功了，查看磁盘空间如下：
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
5.3G 5.0G 50M 100% /
/dev/sda1 99M 12M 83M 13% /boot
tmpfs 125M 0 125M 0% /dev/shm
/dev/sdb1 7.7G 183M 7.2G 3% /data
在查看mysql数据目录情况
mysql> show variables like '%dir%';
+-----------------------------------------+------------------------------------+
| Variable_name | Value |
+-----------------------------------------+------------------------------------+
| basedir | /usr/local/mysql |
| binlog_direct_non_transactional_updates | OFF |
| character_sets_dir | /usr/local/mysql/share/charsets/ |
| datadir | /usr/local/mysql/data/ |
| innodb_data_home_dir | /data/mysql/data |
| innodb_log_group_home_dir | /data/mysql/data |
| innodb_max_dirty_pages_pct | 75 |
| lc_messages_dir | /usr/local/mysql/share/ |
| plugin_dir | /usr/local/mysql/lib/mysql/plugin/ |
| slave_load_tmpdir | /tmp |
| tmpdir | /tmp |
+-----------------------------------------+------------------------------------+
11 rows in set (0.01 sec)
从上面看确实是空间满了，然后调整变量“tmpdir”和“slave_load_tmpdir”，然后重启mysql服务，结果就ok了
[mysqld]
...
tmpdir=/data/mysql
slave_load_tmpdir=/data/mysql
...
[root@localhost mysql]# support-files/mysql.server restart
Shutting down MySQL (Percona Server).....[ OK ]
Starting MySQL (Percona Server)...[ OK ]
[root@localhost mysql]# bin/mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.24-log Source distribution
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> insert into t2 select * from t2;
ERROR 1046 (3D000): No database selected
mysql> use test;
Database changed
mysql> insert into t2 select * from t2;
Query OK, 98304 rows affected (4.48 sec)
Records: 98304 Duplicates: 0 Warnings: 0
这个就是我在改数据的目录时，忘记改这个变量值了。
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