Here's an interesting observation

Julian Field MailScanner at ecs.soton.ac.uk
Mon Jan 26 14:22:32 GMT 2009



On 26/1/09 11:59, Steve Campbell wrote:
> Quoting Julian Field<MailScanner at ecs.soton.ac.uk>:
>
>    
>> On 24/1/09 01:30, Steve Campbell wrote:
>>      
>>> Quoting Scott Silva<ssilva at sgvwater.com>:
>>>
>>>
>>>        
>>>> on 1-23-2009 9:54 AM Steve Campbell spake the following:
>>>>
>>>>          
>>>>> I've been fighting this for a while now. I don't know if my SA timeouts
>>>>> are gone, but:
>>>>>
>>>>> I removed the KAM rules, and a backlog of mail processed really fast. I
>>>>> haven't had a SA timeout in more than 30 minutes, and before removal,
>>>>> they were happening about every 3 minutes.
>>>>>
>>>>> steve
>>>>>
>>>>>
>>>>>            
>>>> Maybe there is a complex regex in the kam rules that is playing havoc on
>>>> your
>>>> perl version in CentOS 3. I remember having issues when I ran perl 5.8.0
>>>> with
>>>> some regex processing.
>>>>
>>>> It might also explain why so many of the perl modules didn't compile.
>>>>
>>>> Might be time to think about migrating the servers to something newer.
>>>>
>>>>
>>>>          
>>> I totally agree here with upgrading, but don't see a way to do it
>>>        
>> immediately. I
>>      
>>> suspect that KAM definitely had something to do with the problem based on
>>>        
>> the
>>      
>>> way the server reacted after removing KAM.
>>>
>>> Now here's the catch. This is the same Perl that ran KAM rules two upgrades
>>>        
>> ago
>>      
>>> when the server ran just fine. The only thing that changed was the version
>>>        
>> of
>>      
>>> MS, which had the modules installation problems, I think a new version of
>>>        
>> SA,
>>      
>>> and the addition of multiple SARE rules due to the ease of the new
>>>        
>> update-sa
>>      
>>> (sa-update?). I removed the SARE rules and that didn't resolve anything.
>>>        
>> Quite a
>>      
>>> lot, I realize.
>>>
>>> So I'm thinking either old KAM doesn't work well with new SA, or KAM
>>>        
>> doesn't
>>      
>>> work well with the combination of new Perl modules plus the old ones that
>>>        
>> stuck
>>      
>>> around either due to install failures or just plain ole KAM doesn't mesh
>>>        
>> with
>>      
>>> the new MS.
>>>
>>>        
>> KAM and MS are independent.
>>      
>>> Regardless of the problem's cause, I'm just happy to have a smooth run MS
>>>        
>> server
>>      
>>> now. I've learned a lot during this trial, and hope it helps others who may
>>>        
>> be
>>      
>>> running Centos 3 and KAM. It's also an alert for maybe other older Centos
>>> distros also.
>>>
>>>        
>> I very much doubt anyone tests anything with CentOS 3 any more.
>>
>> Jules
>>
>> -- 
>>      
> Julian,
>
> Thanks.
>
> I'm aware that KAM and MS are two separate things and related to SA instead of
> MS. I only mentioned my experiences to help others if they are running KAM with
> any distro and MS. There have been a lot of posts lately about SA timeouts, so I
> thought this might be helpful.
>
> I'm sort of stuck for a while with the old distro. We don't have a lot of spare
> servers with this type of power for me to upgrade with. And this server is an
> email do-all, running MS, SA, ClamD and the mail store for two domains.
>
> Even with the old OS, I give you kudos for your software as it still does what
> it's supposed to do. It'd probably do better with all the newer modules, but
> alas - the money issues here at our company.
>
> I hope you realize that this is praise, and not to be taken as argumentative.
> This mail list is the central focus point for many different pieces of software,
> as your software ties many of those pieces of software together. The list is
> comprised of many intelligent people who offer their wisdom. I can't usually
> offer much of it, so when I do have something to offer, I try and pay my dues.
> It's probably not the way it should be, but it is the focus point.
>
>    
No worries :-)

Jules

-- 
Julian Field MEng CITP CEng
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