Running a shell script on becoming the CARP master?
Matthew Hagerty
matthew at digitalstratum.com
Sun Nov 27 02:52:33 GMT 2005
David S. Madole wrote:
> From: "Matthew Hagerty" <matthew at digitalstratum.com>
>
>>
>> Are there any hooks into CARP to run a shell script when a machine
>> becomes the master? Also, is there a way to force a machine to
>> become the master without powering off the current master (for
>> example to do maintenance on the current master)?
>
>
> I don't know of any way to do the former, but for the latter it's easy
> enough to temporarily adjust the advbase setting higher on the master
> until failover occurs. Set it to at least three times the setting on
> the slave.
>
> Or simply ifconfig down the carp interface on the master.
>
> David
>
Taking the master carp interface down certainly would accomplish the
task, I just didn't know if there was a more elegant method. Thanks for
the info.
Matthew
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