[lvs-users] SCTP support on real server monitoring tools

krishna prasad krishna.sirigiri at gmail.com
Mon Mar 5 04:32:39 GMT 2012

On Fri, Mar 2, 2012 at 6:27 PM, David Coulson <david at davidcoulson.net>wrote:

> We don't use SCTP specifically, but I utilize ldirectord with external
> check scripts to monitor weird proprietary applications (most of which use
> UDP). I have also used mon for the same purpose, although we have since
> deimpleted that in favor of ldirectord.
> David

Thanks for the response. So in conclusion I can use ldirectord with
external check scripts to monitor my sctp based applications? Forgot to
mention, some of our real servers can be on SCTP and some can be on TCP; so
I think the ldirectord can monitor tcp and sctp (using scripts) real
servers simultaneously.

Also, is there any comparison or advantages/disadvantages of using
ldirectord vs mon vs keepalined?

> On 3/2/12 7:12 AM, krishna prasad wrote:
>> Hi,
>>    I was exploring options available to monitor real servers in LVS
>> cluster.
>> Our requirement is  that the real severs can be on TCP or SCTP; and they
>> don't run the web servers like HTTP or FTP or any regular services. They
>> listen on any configured port; basically service is proprietary
>> application
>> on tcp or sctp.
>> With this back ground, I realized that recent LVS has SCTP support and I
>> am
>> happy on this;and came across 3 real server monitoring tools 1) Ldirectord
>> 2)Keepalived 3) mon.
>> These are my questions
>> 1) Does any of the above 3 methods support real server monitoring on SCTP
>> (
>> I am sure all three support TCP)
>> 2) I think all 3 methods support checking some proprietary real service
>> checks other than the standard services like HTTP/LDAP/FTP etc..(I think
>> all 3 have a simple connection check mechanism). Please confirm if my
>> understanding is correct?
>> Any help on this is highly appreciated.
>> Thanks
>> Prasad.
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