怎么解决MYSQL中的Errcode: 17 - File exists问题

本篇内容主要讲解"怎么解决MYSQL中的Errcode: 17 - File exists问题"，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习"怎么解决MYSQL中的Errcode: 17 - File exists问题"吧。

现象：

执行show fields from a时报下面的错误

Error: Can't create/write to file '/tmp/#sql_419_0.MYI' (Errcode: 17 - File exists): SHOW FULL FIELDS FROM `a`

解决方法：

在/tmp下，把相关的#sql文件移除即可

重现：

[root@10-19-187-240 tmp]# ll | grep sql-rw-r--r-- 1 root  root    531453 1月  10 19:55 a.sqllrwxrwxrwx 1 root  root        25 1月   9 18:14 mysql.sock -> /var/lib/mysql/mysql.sock-rw-rw---- 1 mysql mysql    98304 1月  21 21:23 test.ibd-rw-rw---- 1 mysql mysql        7 1月  22 11:15 t_myisam.MYD-rw-rw---- 1 mysql mysql     1024 1月  22 11:15 t_myisam.MYIshow fileds 开始执行时：[root@10-19-187-240 tmp]# ll | grep sql-rw-r--r-- 1 root  root    531453 1月  10 19:55 a.sqllrwxrwxrwx 1 root  root        25 1月   9 18:14 mysql.sock -> /var/lib/mysql/mysql.sock-rw-rw---- 1 mysql mysql        0 2月  14 14:20 #sql_5ec_0.MYD-rw-rw---- 1 mysql mysql     1024 2月  14 14:20 #sql_5ec_0.MYI-rw-rw---- 1 mysql mysql    98304 1月  21 21:23 test.ibd-rw-rw---- 1 mysql mysql        7 1月  22 11:15 t_myisam.MYD-rw-rw---- 1 mysql mysql     1024 1月  22 11:15 t_myisam.MYI[root@10-19-187-240 tmp]#[root@10-19-187-240 tmp]#[root@10-19-187-240 tmp]# cp "#sql_5ec_0.MYD" ~/[root@10-19-187-240 tmp]# cp "#sql_5ec_0.MYI" ~/show filelds 执行完成 后：[root@10-19-187-240 tmp]# ll | grep sql-rw-r--r-- 1 root  root    531453 1月  10 19:55 a.sqllrwxrwxrwx 1 root  root        25 1月   9 18:14 mysql.sock -> /var/lib/mysql/mysql.sock-rw-rw---- 1 mysql mysql    98304 1月  21 21:23 test.ibd-rw-rw---- 1 mysql mysql        7 1月  22 11:15 t_myisam.MYD-rw-rw---- 1 mysql mysql     1024 1月  22 11:15 t_myisam.MYI[root@10-19-187-240 tmp]#[root@10-19-187-240 tmp]#把原来的文件 copy回来[root@10-19-187-240 tmp]# cp ~/"#sql_5ec_0.MYD" ./[root@10-19-187-240 tmp]# cp ~/"#sql_5ec_0.MYI" ./[root@10-19-187-240 tmp]# ll总用量 20532-rw-r--r-- 1 root  root    531453 1月  10 19:55 a.sqldrwxr-xr-x 6 root  root      4096 1月  12 14:50 data-rw-r--r-- 1 root  root  20376794 1月  14 21:34 data.ziplrwxrwxrwx 1 root  root        25 1月   9 18:14 mysql.sock -> /var/lib/mysql/mysql.sock-rw-r----- 1 root  root         0 2月  14 14:21 #sql_5ec_0.MYD-rw-r----- 1 root  root      1024 2月  14 14:21 #sql_5ec_0.MYI-rw-rw---- 1 mysql mysql    98304 1月  21 21:23 test.ibd-rw-rw---- 1 mysql mysql        7 1月  22 11:15 t_myisam.MYD-rw-rw---- 1 mysql mysql     1024 1月  22 11:15 t_myisam.MYI

再次执行show fields

就可以重现上面的错误

调用过程：

#0  fill_schema_table_by_open (thd=0x2293ee0,    is_show_fields_or_keys=true, table=0x7fbed405c310,    schema_table=0x1531980, orig_db_name=0x7fbf00dfea20,    orig_table_name=0x7fbf00dfea10,    open_tables_state_backup=0x7fbf00dfe8b0,    can_deadlock=false)    at /data/mysql-5.6.35/sql/sql_show.cc:3470#1  0x000000000084107e in get_all_tables (thd=0x2293ee0,    tables=0x7fbed4006090, cond=0x0)    at /data/mysql-5.6.35/sql/sql_show.cc:4131#2  0x000000000084f655 in do_fill_table (thd=0x2293ee0,    table_list=0x7fbed4006090, join_table=0x7fbed4065358)    at /data/mysql-5.6.35/sql/sql_show.cc:7433#3  0x000000000084fa2c in get_schema_tables_result (    join=0x7fbed405aae0,    executed_place=PROCESSED_BY_JOIN_EXEC)    at /data/mysql-5.6.35/sql/sql_show.cc:7534#4  0x00000000008238c7 in JOIN::prepare_result (    this=0x7fbed405aae0, columns_list=0x7fbf00dfeda0)    at /data/mysql-5.6.35/sql/sql_select.cc:822#5  0x00000000007c10ef in JOIN::exec (this=0x7fbed405aae0)    at /data/mysql-5.6.35/sql/sql_executor.cc:116#6  0x0000000000824408 in mysql_execute_select (    thd=0x2293ee0, select_lex=0x2296478, free_join=true)    at /data/mysql-5.6.35/sql/sql_select.cc:1101#7  0x000000000082471f in mysql_select (thd=0x2293ee0,    tables=0x7fbed4006090, wild_num=0, fields=...,    conds=0x0, order=0x2296640, group=0x2296578,    having=0x0, select_options=2684619520,    result=0x7fbed405aab8, unit=0x2295e30,    select_lex=0x2296478)    at /data/mysql-5.6.35/sql/sql_select.cc:1222#8  0x000000000082273b in handle_select (thd=0x2293ee0,    result=0x7fbed405aab8, setup_tables_done_option=0)    at /data/mysql-5.6.35/sql/sql_select.cc:110#9  0x00000000007fb93e in execute_sqlcom_select (    thd=0x2293ee0, all_tables=0x7fbed4006090)    at /data/mysql-5.6.35/sql/sql_parse.cc:5181#10 0x00000000007f4081 in mysql_execute_command (    thd=0x2293ee0)    at /data/mysql-5.6.35/sql/sql_parse.cc:2689---Type  to continue, or q  to quit---#11 0x00000000007fe4bc in mysql_parse (thd=0x2293ee0,    rawbuf=0x7fbed4005030 "show fields from a", length=18,    parser_state=0x7fbf00e00670)    at /data/mysql-5.6.35/sql/sql_parse.cc:6433#12 0x00000000007f0f7d in dispatch_command (    command=COM_QUERY, thd=0x2293ee0,    packet=0x2368eb1 "show fields from a",    packet_length=18)    at /data/mysql-5.6.35/sql/sql_parse.cc:1372#13 0x00000000007eff56 in do_command (thd=0x2293ee0)    at /data/mysql-5.6.35/sql/sql_parse.cc:1039#14 0x00000000007b5f35 in do_handle_one_connection (    thd_arg=0x2293ee0)    at /data/mysql-5.6.35/sql/sql_connect.cc:982#15 0x00000000007b5cca in handle_one_connection (    arg=0x2293ee0)    at /data/mysql-5.6.35/sql/sql_connect.cc:899#16 0x0000000000b33da0 in pfs_spawn_thread (arg=0x21e64c0)    at /data/mysql-5.6.35/storage/perfschema/pfs.cc:1860#17 0x00007fbf2c56faa1 in start_thread ()   from /lib64/libpthread.so.0#18 0x00007fbf2b2d8aad in clone () from /lib64/libc.so.6

经过一步步的查看，发现是在
create_tmp_table (thd=0x2293ee0, param=0x7fbed405a050,
fields=..., group=0x0, distinct=false,
save_sum_fields=false, select_options=2147752704,
rows_limit=18446744073709551615,
table_alias=0x7fbed4006088 "COLUMNS")
at /data/mysql-5.6.35/sql/http://sql_tmp_table.cc:455
生成的临时表。
实际上是查看了information_schema中的表

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