Linux操作系统下的集群工作原理及实战经历 -2

 

中国ＩＴ实验室收集整理 

 

　　下面就是重新配置和编译Linux的内核。特别注意以下选项：

　　1 Code maturity level options——>

　　* [*]Prompt for development and/or incomplete code/drivers

　　2 Networking部分：

　　[*] Kernel/User netlink socket

　　[*] Routing messages

　　<*> Netlink device emulation

　　* [*] Network firewalls

　　[*] Socket Filtering

　　<*> Unix domain sockets

　　* [*] TCP/IP networking

　　[*] IP: multicasting

　　[*] IP: advanced router

　　[ ] IP: policy routing

　　[ ] IP: equal cost multipath

　　[ ] IP: use TOS value as routing key

　　[ ] IP: verbose route monitoring

　　[ ] IP: large routing tables

　　[ ] IP: kernel level autoconfiguration

　　* [*] IP: firewalling

　　[ ] IP: firewall packet netlink device

　　* [*] IP: transparent proxy support

　　* [*] IP: masquerading

　　—— Protocol-specific masquerading support will be built as modules.

　　* [*] IP: ICMP masquerading

　　—— Protocol-specific masquerading support will be built as modules.

　　* [*] IP: masquerading special modules support

　　* IP: ipautofw masq support (EXPERIMENTAL)(NEW)

　　* IP: ipportfw masq support (EXPERIMENTAL)(NEW)

　　* IP: ip fwmark masq-forwarding support (EXPERIMENTAL)(NEW)

　　* [*] IP: masquerading virtual server support (EXPERIMENTAL)(NEW)

　　[*] IP Virtual Server debugging (NEW) <——最好选择此项，以便观察LVS的调试信息

　　* (12) IP masquerading VS table size (the Nth power of 2) (NEW)

　　* IPVS: round-robin scheduling (NEW)

　　* IPVS: weighted round-robin scheduling (NEW)

　　* IPVS: least-connection scheduling (NEW)

　　* IPVS: weighted least-connection scheduling (NEW)

　　* IPVS: locality-based least-connection scheduling (NEW)

　　* IPVS: locality-based least-connection with replication scheduling

　　(NEW)

　　* [*] IP: optimize as router not host

　　* IP: tunneling

　　IP: GRE tunnels over IP

　　[*] IP: broadcast GRE over IP

　　[*] IP: multicast routing

　　[*] IP: PIM-SM version 1 support

　　[*] IP: PIM-SM version 2 support

　　* [*] IP: aliasing support

　　[ ] IP: ARP daemon support (EXPERIMENTAL)

　　* [*] IP: TCP syncookie support (not enabled per default)

　　—— (it is safe to leave these untouched)

　　< > IP: Reverse ARP

　　[*] IP: Allow large windows (not recommended if <16Mb of memory)

　　< > The IPv6 protocol (EXPERIMENTAL)

　　上面，带*号的为必选项。然后就是常规的编译内核过程，不再赘述。

　　在这里要注意一点：如果你使用的是RedHat自带的内核或者从RedHat下载的内核版本，已经预先打好了LVS的补丁。这可以通过查看/usr/src/linux/net/目录下有没有几个ipvs开头的文件来判断：如果有，则说明已经打过补丁。