NAME

wackamole - IP-failover high-availability tool

SYNOPSIS

wackamole [-v] [-c config_file ] [ -s spread ] [-u user ] [ -d ]

wackamole runs the Wackamole IP-failover HA tool using the wackamole.conf file as a base configuration.

-v: Display version information and exit.
-d: Turn on debugging and do not daemonize.
-u user: Instruct wackamole to use user instread of Wack<pid> as it's username when connecting to Spread.
-s spread_loc: Connect to Spread running at spread_loc
-c config-file: Use an alternate configuration file config-file instead of wackamole.conf.

wackamole.conf

The default config file location is dependant on the install prefix. ./wackamole.conf is also searched if a local file is not found.

By default, Wackamole will log any errors to syslog. Check the appropriate log desitnation on your platform.

Linux: Wackamole makes extensive use of ioctl()s on network devices. When dropping and interface such as eth0:4, all subsequent interfaces (eth0:5, etc.) will disappear and no longer function. There has been special code added that causes Wackamole on Linux to iterate through all IP addresses after a balancing round and attempt to re-plumb them. This may cause gratuitous entries to syslog as well as extra unsolicited ARP responses.
Solaris: Solaris' local arp-cache is, as far as the author is aware, completely undocumented. The code in Wackamole to open /dev/ip and attempt to read the ARP cache was written only by looking at the output of truss arp -an and should be considered a "stab in the dark."

Yair Amir <yairamir@cnds.jhu.edu>

Ryan Caudy <wyvern@cnds.jhu.edu>

Aashima Munjal <munjal@cnds.jhu.edu>

Theo Schlossnagle <jesus@cnds.jhu.edu>