curl-loader使用问题

netmask

在使用curl-loader的过程中，遇到了一些问题，找到了解决方案，但不明白他写的意思，麻烦各位帮忙看下，最好能给出解决方案，谢谢。

Why I am getting "Connection time-out after 5108 ms" like errors in the log file?

This means, that the connections cannot be established within 5 seconds (which is the default). If some of clients are getting such errors, this means, that the server is overloaded and cannot establish TCP connection within the time. Y may wish to increase the connection timeout globally by e.g. -c 10 or to specify an increased timeout using tag TIMER_TCP_CONN_SETUP=10.

When all your clients have such errors, in most cases this is due either to resolving or routing problems or other network problems. Y can set any addresses to your clients in IP_ADDR_MIN and IP_ADDR_MAX tags, providing, that you ensure a smooth route from client and from server for the addresses you use.

Please, start with a single client and see that it works, than progress further. When you are specifying any addresses here, they are added by curl-loader initialization to the network interface of your choice and may be seen by the command:
#/sbin/ip addr

Command ping (man ping) has an option -I to force the ping to be issued from a certain ip-address. To test, that your routing is OK, you may use, e.g.:
#ping -I <the client address you wish to use> url-target
When it works - it will be OK.
Please, also pay attention to the firewalling/NAT settings at your linux loading machine (netfilter/iptables), at the tested servers and through the whole packets route.