Ldirectord and custom scripts

[Paulo F. Andrade]

Paulo F. Andrade 52439 at IST
mailto: pfca at mega.ist.utl.pt


On 2006/09/12, at 16:42, Francisco Gimeno wrote:

> hehe
>
> by today I have though a little bit on that...
> but my idea was having weigthed checks... so
> -1 = NOK
> 0  = OK default weight
> 1 = OK weight 1
> 2 = OK weight 2
>
> 100 = weight 100
> so, you can make checks returning a value depending on the load  
> ( you will see
> if it's a delay, the cpu usage or whatever ).. and then, the  
> ldirectord
> should assign it
>
For you to do this and be accurate, a simple script on the director  
side wouldn't be enough. I'm guessing you would have to have  
something running on the real server side. If you really want to have  
this, you should take a look at feedbackd -> http://ozlabs.org/~jk/ 
projects/feedbackd/

Currently ldirectord is built-in with many health checking scripts  
(ftp smtp http pop pops nntp imap imaps ldap https dns mysql pgsql  
sip). What would be great, would be the ability to add checks for  
services that aren't supported (or even for those that are) without  
the nedd to delve in the ld
>
>> I also would like to do something similar. My idea was to integrate
>> Nagios check commands for such services as squid.
>>
>> Ron Owens
>>
>> -----Original Message-----
>> From: lvs-users-bounces at LinuxVirtualServer.org
>> [mailto:lvs-users-bounces at LinuxVirtualServer.org] On Behalf Of  
>> Paulo F.
>> Andrade
>> Sent: 12 September 2006 13:54
>> To: linuxVirtualServer.org users mailing list.
>> Subject: Ldirectord and custom scripts
>>
>> Hi,
>> I was wondering if anyone has changed ldirectord to allow for custom
>> health checking scripts. I know I can add perl code to ldirectord so
>> that it can test my service, but that would be cumbersome.
>> I was thinking more along the line of being able to execute a custom
>> script (in C, python, bash whatever) and checking it's return status
>> to judge the server's health.
>> This would add greater flexibility to ldirectord. And I'm guessing
>> someone has already thought of this.
>> If no-one has made an effort to do this, I'll try and do myself!
>> (just have to learn perl first :) )
>>
>> Thank you for your time!
>> Paulo F. Andrade 52439 at IST
>> mailto: pfca at mega.ist.utl.pt
>>
>>
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