前天早上看数据库，居然发现ｓｈｕｔｄｏｗｎ了．下面是跟踪文件

mugen

调整参数之后的性能参数,这是我写的一个邮件脚本,每天发送这样的邮件:
   Data buffer cache Hit Ratio Value is .9999542883102788547462777152332987928586 Share Pool cache Hit Ratio should less than 1%,and the value is  .009067467626306990450823156045450681476864   Memory Sort is 10621     Disk Sort is 1 The Disk/Mem ,the less the better Share Pool Free Memory bytes: 405774296

修改参数以前:
Data buffer cache Hit Ratio Value is .251077808320083222836372840452937560415 Share Pool cache Hit Ratio should less than 1%,and the value is  .0238913529932171153996780887730063764015   Memory Sort is 215156     Disk Sort is 5 The Disk/Mem ,the less the better Share Pool Free Memory bytes: 69809896