http://www.jackxiang.com/index.php zh-cn http://www.jackxiang.com/post// jack <xdy108@126.com> Wed, 05 Jun 2013 10:17:18 +0000 http://www.jackxiang.com/post// ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0 socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3 close(3)                                = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3 fcntl(3, F_GETFL)                       = 0x2 (flags O_RDWR) fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK)    = 0 connect(3, {sa_family=AF_INET, sin_port=htons(80), sin_addr=inet_addr("192.168.108.8")}, 16) = -1 EINPROGRESS (Operation now in progress) poll([{fd=3, events=POLLOUT}], 1, 300000) = 1 ([{fd=3, revents=POLLOUT}]) getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0 sendto(3, "GET /album/getAlbumsByUserId?app"..., 313, MSG_NOSIGNAL, NULL, 0) = 313 poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 1000)  = 0 (Timeout) poll([{fd=3, events=POLLIN}], 1, 0)     = 0 (Timeout)

经过xdebug发现它是由于数据库访问这个函数超时引起的，有5秒到15秒之多，但是把这个SQL贴在终端里访问，发现它很快才几毫秒。
用下面的sleep代码也能形成TimeOut，如下：
sleep(10); echo "Helo"; exit;

我在想，是192.168.109.8访问192.168.109.7上中间有时会有波动造成的，还是因为PHP连接时超时呢？需要进一步了解啊。



有一个域名反解的配置把这个去掉：
skip-name-resolve

修改配置文件添加并需要重启：
[mysqld] skip-name-resolve


修改my.cnf的配置文件添加并需要重启，试试：
[mysqld]
skip-name-resolve


感觉通过一个脚本访问好像好了，需要时间验证，脚本：
http://www.jackxiang.com/post/6421/

]]> http://www.jackxiang.com/post//#blogcomment <user@domain.com> Thu, 01 Jan 1970 00:00:00 +0000 http://www.jackxiang.com/post//#blogcomment