public function test(){
$m=M('tag');
$q=$this->_get("q");
if ($q){
$tag=$m->where("status=1 and name like '%".$q."%'")->field('tagId as id,name')->order('count')->limit(20)->select();
}
else{
$tag=$m->where("status=1")->field('tagId as id,name')->order('count')->limit(20)->select();
}
$this->ajaxReturn($tag,'JSON');
}描述:方位其他应用时很正常,访问这个方法时连续访问几次,内存就会很快增加,一个请求需要几分钟才能返回数据。甚至因为内存耗尽而崩溃。错误提示:
Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes)
php.ini设置是这样的
max_execution_time = 30
max_input_time = 60
memory_limit = 360Mapache采用的是prework模式,设置如下:Timeout 60
KeepAlive On
MaxKeepAliveRequests 10
KeepAliveTimeout 5
## Server-Pool Size Regulation (MPM specific)
<IfModule mpm_prefork_module>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
MaxClients 100
MaxRequestsPerChild 500
</IfModule>tag表里只有是6条记录和3000条记录时,问题是一样的。执行的查询语句在mysql下执行时,经过多次实验时间可以忽略不计。此后我将php.ini的内存限制设置成了300M,但是还是很快崩溃。
使用原生态的php进行操作就没有问题:
$q=$this->_get("q");
$tag=array();
mysql_connect('localhost:3306', huiyi', '*****')
or die("Could not connect: " . mysql_error());
mysql_select_db("huiyi");
$result = mysql_query("select tagId as id,name from hy_tag where status=1 and name like '%".$q."%' limit 20")
or die("Query failed: " . mysql_error());
$i = 0;
while ($row = mysql_fetch_assoc($result)) {
array_push($tag, $row);
}
$this->ajaxReturn($tag,'JSON');
1.png
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最佳答案