2008-09-15
Piranha for LVS
作者：花开 发布时间： 2008-09-15 | 版权声明：可以任意转载，转载时请务必以超链接形式标明文章原始出处、作者信息及本声名。
本文链接: http://www.bsdmap.com/2008/09/15/piranha-for-lvs/
食人鱼（Piranha）是南美洲食肉的淡水鱼。它们通常15—25厘米（6—10英寸）长，虽然有时发现有长度达到40厘米的。食人鱼具有尖利的牙齿（能够轻易咬断用钢造的鱼钩或是一个人的手指[1]），非常凶猛，一旦发现猎物，往往群起而攻之。可以10分鐘內將一隻活牛吃剩一排白骨。当地人用它们的牙齿来做工具和武器。亚马逊河、圭亚那河、巴拉圭河、等河流是食人鱼经常出没的场所。
piranha,水虎鱼,食人鱼
piranha,水虎鱼,食人鱼
piranha：
Summary : Cluster administation tools
Description : Various tools to administer and configure the Linux Virtual Server as well as heartbeating and failover components. The LVS is a dynamically adjusted kernel routing mechanism that provides load balancing primarily for web and ftp servers though other services are supported.
piranha的组件：
/usr/sbin/pulse
heartbeating daemon for monitoring the health of cluster nodes.
/usr/sbin/lvsd
daemon to control the Red Hat clustering services.
/usr/sbin/nanny
tool to monitor status of service in a cluster.
/usr/sbin/fos
failover services daemon to control the Red Hat clustering service.
/usr/sbin/send_arp
tool to notify network of a new IP address / MAC address mapping.
这个工具非常有用。之前有一篇《send_arp的一个角本》，我曾经简单介绍过。
On LVS router, there are three service which need to be set to activate at boot time.
- piranha-gui
- pulse
- sshd
If you are clustering multi-port services or using firewall marks, you must enable the iptables service.
On this day..
- 关闭lo接口对arp查询的响应 - 2008
