今天中午收到mysql錯誤日誌監控發來的警報，錯誤日誌如下：

101209 13:13:32 [ERROR] /usr/local/mysql/bin/mysqld: The table 'test_1291870945841162' is full
101209 13:13:32 [ERROR] /usr/local/mysql/bin/mysqld: The table 'test_1291870945841162' is full
101209 13:13:32 [ERROR] /usr/local/mysql/bin/mysqld: The table 'test_1291870945841162' is full
101209 13:13:32 [ERROR] /usr/local/mysql/bin/mysqld: The table 'test_1291870945841162' is full

通過查詢mysql官方站點：
http://dev.mysql.com/doc/refman/5.0/en/full-table.html 得知：
因為系統是linux，不存在作業系統和檔案格式的限制，通過表的名字可以得知，該表應該是個臨時表，再說資料庫裡面也查不到該表。

有這一句話很重要：
You are using the MEMORY (HEAP) storage engine; in this case you need to increase the value of the max_heap_table_size system variable. See Section 5.1.3, “Server System Variables”.


於是就修改Mysql的配置檔案/etc/my.cnf，在[mysqld]下新增/修改兩行：
tmp_table_size = 256M
max_heap_table_size = 256M

系統預設是16M，別忘記重新啟動mysql，你也可以線上動態修改該引數，經過這幾天的觀察，這個世界安靜了許多。
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