表'/tmp /#sql_165_0.MYI'的密钥文件不正确;尝试修复它

i just check my whm it was showing heavy load on server i clicked on load then i found that mysql was throwing heavy load on server . i just checked mysql error log was which was showing this error several times and i checked my tmp folder it has 4 gb of ram but i found that error size was bigger than 4 gb however tmp will show that it has used only 12% of available memory can anyone tell how to know the query from this code which is causing heavy load on serveri just check my whm it was showing heavy load o