Question

我有2个服务器运行每个repcached实例。 Php配置为在那里保存会话。

复制2台服务器以实现冗余

问题是我正在用ab做一些基准测试。运行

ad -n 10000 -c 500 http://mysite

我在apache错误日志中遇到了一些错误无法写入会话数据

查看两个服务器上的listen_disabled_num，它为0，因此不提供任何连接

顺便说一句，我将最大连接数设置为4096

有什么想法吗？

由于

Answer 1

在会话数据大于Memcache的1MB屏障之前，我遇到过这个问题。我通过压缩会话数据，然后将其存储在Memcache中来解决它。

这是我正在使用的代码：

<?php
class SessionHandler {
    public $lifeTime;

    public function __construct() {
        $this->lifeTime = intval(ini_get("session.gc_maxlifetime"));

        session_set_cookie_params(0,"/",".domain.com",false,true);
        session_name("SITESESSION");
        session_set_save_handler(array (&$this,"open"),array (&$this,"close"),array (&$this,"read"),array (&$this,"write"),array (&$this,"destroy"),array (&$this,"gc"));
        session_start();
    }

    public function open($savePath,$sessionName) {
        return true;
    }

    public function close() {
        return true;
    }

    public function read($sessionID) {
        # The default miss for MC is (bool) false, so return it
        return MC::get("userSession_{$sessionID}");
    }

    public function write($sessionID,$data) {
        # This is called upon script termination or when session_write_close() is called, which ever is first.
        return MC::set("userSession_{$sessionID}",$data,$this->lifeTime,true); # The last true sets it as compressed.
    }

    public function destroy($sessionID) {
        # Called when a user logs out...
        return MC::delete("userSession_{$sessionID}");
    }

    public function gc($maxlifetime) {
        # The MC keys expire on their own, no need to do anything here.
        return true;
    }
}
?>

Memcached和php会话问题

1 个答案: