[horde] Strange login problem

[Kevin Konowalec]

Thanks Jason!  That sounds like a reasonable source of the problem.

We're running 4 memcached machines, each with 1.5 gigs of space  
allocated.  I'd be very surprised if we're running out of memory.   
But it's entirely possible.  We're running version 1.1.12 - what's  
the latest version?  As for this facebook patch, where might one find  
that?

Not sure if it's helpful or not but here's our startup string:

/usr/local/bin/memcached -u www -d -m 1536 -p 3307

Are there any tools that can be used to monitor memcached?  Right now  
it's just a "black box".

Thanks a bunch!

Kevin




On Jun 12, 2007, at 8:16 AM, Jason Clifton wrote:

> This looks to me like a problem with memcached, I've seen other  
> situations where you get the same logon behavior when memcached  
> runs out of memory. Because memcached works on memory slabs it  
> doesnt have to actually be out of memory for you to see the out of  
> memory problems.
>
> I would try allocating more memory to it if you can, if not make  
> sure you are running the latest version, and if so then you may  
> have to try the facebook memcached patch, that was created to fix  
> this issue. Oh and make sure you are not running it with the -M  
> switch (different from -m).
>
> Quoting Kevin Konowalec <webadmin at ualberta.ca>:
>
>> You are correct, sir.  A glaring omission, for sure... sorry...  
>> running on 3 hours sleep ;)
>>
>> We authenticate via imp through imap.  The sessions are memcached- 
>> based.  I should also mention the problem occurs randomly.  Some  
>> days it doesn't happen to me at all, other days it'll happen 3  
>> times in a row.
>>
>> Thanks!
>>
>> K
>>
>>
>>
>> On Jun 11, 2007, at 12:34 PM, Jason Clifton wrote:
>>
>>> It might be helpful if you told us what authentication method you  
>>> are
>>> using and what session driver...
>>>
>>> Quoting Kevin Konowalec <webadmin at ualberta.ca>:
>>>
>>>> Horde: 3.1.4
>>>> Imp: H3 (4.1.4)
>>>>
>>>> Since transitioning to the new versions of horde and imp we have  
>>>> been
>>>> getting more and more complaints about login problems.  When you
>>>> enter in correct username and passwords and submit, horde will
>>>> frequently spit you right back to the login page without any  
>>>> errors.
>>>> It sometimes takes 2 or 3 tries to get logged in.  There isn't
>>>> anything in the logs to suggest what's going on here.  Can anyone
>>>> suggest a way to troubleshoot this?
>>>> --
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>>>
>>>
>>>
>>> -- 
>>> Jason Clifton
>>> City Diesel
>>> www.citydiesel.net
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>
>
>
> -- 
> Jason Clifton
> City Diesel
> www.citydiesel.net
>