08-03-2016
High availability of a process between two Linux servers
Hello,
I would like to create a script that will maintain HA/failover of a process between two servers.
I wanted to send a continuous heartbeat message through a script to another server when everything is working fine, if a process has gone down then the same message should be sent another server then the slave server should bring up the process.
I have got no clue how to achieve this, please advice!
Thanks.
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YPSET(8) BSD System Manager's Manual YPSET(8)
NAME
ypset -- tell ypbind(8) which YP server process to use
SYNOPSIS
ypset [-h host] [-d domain] server
DESCRIPTION
Ypset tells the ypbind(8) process on the current machine which YP server process to communicate with. If server is down or is not running a
YP server process, it is not discovered until a YP client process attempts to access a YP map, at which time ypbind(8) tests the binding and
takes appropriate action.
Ypset is most useful for binding a YP client that is not on the same broadcast network as the closest YP server, but can also be used for
debugging a local network's YP configuration, testing specific YP client programs, or binding to a specific server when there are many
servers on the local network supplying YP maps.
The options are as follows:
-h host
Set the YP binding on host instead of the local machine.
-d domain
Use the YP domain domain instead of the default domain as returned by domainname(1).
SEE ALSO
domainname(1), ypbind(8), ypcat(1), ypmatch(1), yppoll(8), ypwhich(1), yp(8)
AUTHOR
Theo de Raadt
BSD
October 25, 1994 BSD