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.sql lrwxrwxrwx 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 show 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.sql lrwxrwxrwx 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.sql lrwxrwxrwx 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.sql drwxr-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.zip lrwxrwxrwx 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 <return> to continue, or q <return> 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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