Company Homepage access is slow or even open!

Client (DNS)--cdn--lvs,nginx,ha--varnish--app--redis--mysql--mfs,gfs2--hadoop--hdfs--io

1. Network problems

Ping the company homepage, if the packet is lost, that is the network problem

2. Customer access is up, causing the server to not be processed.

Nginx Scheduler to increase the number of servers in front of the server to do a varnish cache the underlying data can be distributed storage, not only to ensure the reliability of the data, but also improve the storage efficiency of data

3.dns parsing problems

Change to a DNS provider

4. Optimize code to reduce bloated structure

Company Homepage access is slow or even open!