[horde] Error: No connection to server

[Ronan SALMON]

Simon Brereton <simon.brereton at buongiorno.com> a écrit :

> On 4 November 2011 10:39, Jan Schneider <jan at horde.org> wrote:
>>
>> Zitat von Simon Brereton <simon.brereton at buongiorno.com>:
>>
>>> On 4 November 2011 10:11, Jan Schneider <jan at horde.org> wrote:
>>>>
>>>> Zitat von Simon Brereton <simon.brereton at buongiorno.com>:
>>>>
>>>>> Hi
>>>>>
>>>>> I have one installation of Horde that is available on three different
>>>>> URLs
>>>>> (https://webmail.example.com, https://webmail.example.net and
>>>>> https://webmail.example.org) and although users are encouraged to log in
>>>>> on
>>>>> the domain corresponding to their email, because the authentication is
>>>>> against the IMAP server, it would work on any URL.
>>>>>
>>>>> I now have one user who is getting:
>>>>>        Error when communicating with the server.[Thu 03 Nov 2011
>>>>> 02:04:28
>>>>> PM EST]
>>>>> and
>>>>>        The server was unable to generate the message list.[Thu 03 Nov
>>>>> 2011
>>>>> 02:04:29 PM EST]
>>>>>
>>>>> This happens for one user regardless of the domain they log in on.  It
>>>>> doesn't happen for any of the other users..  Unless changed users are
>>>>> presented with the Portal page - which doesn't load for this use.
>>>>>  Changing
>>>>> the URL to imp/ starts to load IMP and then errors above occur.  Ditto
>>>>> changing it to kronolith/
>>>>>
>>>>> The logs aren't very forth-coming.  Here is one login session for the
>>>>> user..
>>>
>>>>> Googling the errors, I saw a comment by Jan to check the apache logs -
>>>>> those turned up this.
>>>>>
>>>>>
>>>>> [Thu Nov 03 17:35:01 2011] [error] [client 77.101.63.17] PHP Fatal
>>>>> error:
>>>>>  Allowed memory size of 134217728 bytes exhausted (tried to allocate 24
>>>>> bytes) in /usr/share/horde4/kronolith/lib/Kronolith.php on line 698,
>>>>> referer: https://webmail.example.net/imp/
>>>>> [Thu Nov 03 18:06:53 2011] [error] [client 38.104.167.66] PHP Fatal
>>>>> error:
>>>>>  Allowed memory size of 134217728 bytes exhausted (tried to allocate 64
>>>>> bytes) in /usr/share/php/Horde/Date.php on line 1055, referer:
>>>>>
>>>>> https://webmail.example.net/login.php?horde_logout_token=TrLYKvGPlLzBE4nfF2NO4JSVSUZGs4nfF2NO4JSVSUZG6Zo6hB0&logout_reason=4
>>>>> [Thu Nov 03 18:07:25 2011] [error] [client 38.104.167.66] PHP Fatal
>>>>> error:
>>>>>  Allowed memory size of 134217728 bytes exhausted (tried to allocate 75
>>>>> bytes) in /usr/share/php/Horde/Date.php on line 1054, referer:
>>>>> https://webmail.example.net/imp/
>>>>> [Thu Nov 03 18:07:27 2011] [error] [client 38.104.167.66] PHP Fatal
>>>>> error:
>>>>>  Allowed memory size of 134217728 bytes exhausted (tried to allocate 75
>>>>> bytes) in /usr/share/php/Horde/Date.php on line 1054, referer:
>>>>> https://webmail.example.net/imp/
>>>>
>>>> Well, the error message can't be clearer.
>>>
>>> For you maybe - but why would only this user have a problem with
>>> Date.php?  Are you suggesting I raise my PHP memory limit?
>>
>> It's not a problem with Date.php. But the limit has to exceed *somewhere*.
>> It happens to be in that file.
>> And yes, that's what I'm suggesting.
>
> This doesn't explain why it's this one user.  This doesn't explain why
> the problem persists if I force all the users to log out and it still
> affects that one user.  This doesn't explain why it persists even
> across an apache restart.  This doesn't explain why that one user is
> still having an error today despite the fact that the memory limit
> error doesn't appear in the logs today.
>
> Finally, what would you suggest is a suitable memory limit for ~100
> users?  Currently I have 128M (which is about 7 times the php
> default).
>
>  456 ; Maximum amount of memory a script may consume (128MB)
>  457 ; http://php.net/memory-limit
>  458 memory_limit = 128M

This can happen (it did happen over here) when opening a message  
containing one (or more) big attachment.


Ronan