Cluster

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Hi Guys,

I have a linux server running centos, and I want warm standby machines for 
failover if there is a problem.

The server runs an application and has data. What differentiates a live 
server from warm backup is cron jobs.

I want to write a script to take up and down the cron jobs, no biggie. What 
I'm looking for is a way to communicate state with other servers in the 
cluster where when taking the master role, the server can contact other 
known servers in the cluster and ask are you master, and drop the task of 
promotion with an error if a master answers.

To achieve this, I need a way of communicating state. Is there anything in 
the FOSS world that you guys have experience of that fits this bill off the 
shelf or do I need to roll my own?

TIA,

Harry.

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Irish Linux Users Group
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Hi Guys,<div><br></div><div>I have a linux server running centos, and I wan=
t warm standby machines for failover if there is a problem.</div><div><br><=
/div><div>The server runs an application and has data. What differentiates =
a live server from warm backup is cron jobs.</div><div><br></div><div>I wan=
t to write a script to take up and down the cron jobs, no biggie. What I'm =
looking for is a way to communicate state with other servers in the cluster=
 where when taking the master role, the server can contact other known serv=
ers in the cluster and ask are you master, and drop the task of promotion w=
ith an error if a master answers.</div><div><br></div><div>To achieve this,=
 I need a way of communicating state. Is there anything in the FOSS world t=
hat you guys have experience of that fits this bill off the shelf or do I n=
eed to roll my own?</div><div><br></div><div>TIA,</div><div><br></div><div>=
Harry.</div>

<p></p>

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Irish Linux Users Group<br />
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