[imp] Cannot write Autoloader cache to backend.

[Jan Schneider]

Zitat von Jens Grüntjes <jens.gruentjes at ebira.de>:

> Zitat von Michael M Slusarz <slusarz at horde.org>:
>
>> Quoting Samuel Wolf <samuel at sheepflock.de>:
>>
>>> Zitat von Michael M Slusarz <slusarz at horde.org>:
>>>
>>>> Quoting Samuel Wolf <samuel at sheepflock.de>:
>>>>
>>>>> Zitat von Michael M Slusarz <slusarz at horde.org>:
>>>>>
>>>>>> Quoting Samuel Wolf <samuel at sheepflock.de>:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have a lot of this errors in my apache error log:
>>>>>>> [Wed Jun 11 23:01:24 2014] [error] [client 192.168.55.104]  
>>>>>>> Cannot write Autoloader cache to backend., referer:  
>>>>>>> https://192.168.55.45/horde4/imp/dynamic.php?page=mailbox
>>>>>>
>>>>>> Your webserver does not have access to the system temporary  
>>>>>> directory (directory returned by PHP's sys_get_temp_dir()).
>>>>>
>>>>> <?php
>>>>> echo sys_get_temp_dir();
>>>>> ?>
>>>>>
>>>>> show /tmp
>>>>>
>>>>> Webserver write some other files to /tmp:
>>>>> root at wds:/tmp# ls -la | grep horde
>>>>> drwx------  3 www-data www-data    4096 Jun  1 18:00 .horde
>>>>> -rw-r--r--  1 www-data www-data   13207 Jun  5 00:48  
>>>>> horde_autoloader_cache_a5242318
>>>>> -rw-r--r--  1 www-data www-data    7895 Jun  5 00:47  
>>>>> horde_autoloader_cache_ff86a2d4
>>>>
>>>> The last access is dated June 5.  I would guess something has  
>>>> changed on your server since then.
>>>
>>> You're right, thanks for the note!
>>>
>>> I installed at this time php5-xcache, after remove the package  
>>> again and restart apache:
>>> root at wds:/tmp# ls -la | grep horde
>>> -rw-r--r--  1 www-data www-data 28698 Jun 12 00:20  
>>> horde_autoloader_cache_a5242318
>>> -rw-r--r--  1 www-data www-data 47365 Jun 12 00:22  
>>> horde_autoloader_cache_ff86a2d4
>>> -rw-------  1 www-data www-data 18924 Jun 12 00:20 horde_debug.txt
>>> -rw-r--r--  1 www-data www-data     0 Jun 12 00:07 horde_dns.cache
>>> [...]
>>>
>>> crazy.
>>>
>>> Maybe I setup xcache wrong.
>>
>> Install != activate in PHP.  I'm guessing that's your issue.
>>
> Sorry for re-opening this issue. Today I switched from APC to XCache  
> and get these messages as well.
>
> <?php
> echo sys_get_temp_dir();
> ?>
>
> gives /tmp and the directory looks like this:
>
> # ll -rt /tmp
> -rw------- 1 www-data www-data  3460 Apr 14 10:17  
> horde_registry_cache_d8b2af3f498a5ea9323655cda64edb28
> -rw------- 1 www-data www-data  3448 Apr 14 10:17  
> horde_registry_cache_1a10e8a841a044ea63d4ec8d19066b1d
> -rw------- 1 www-data www-data  3487 Apr 14 10:17  
> horde_registry_cache_ef3c5204bbde4b436aa995fe86f863a4
> -rw------- 1 www-data www-data  3500 Apr 14 10:18  
> horde_registry_cache_bded33a3c9bfa7332b0082506443d3ae
> -rw------- 1 www-data www-data 13522 Apr 14 10:20  
> horde_autoloader_cache_dcfe726a02a17964308e92a52484786c
> -rw------- 1 www-data www-data 21454 Apr 14 10:29  
> horde_autoloader_cache_4b0b5ed4e62d134627d5ce4a0a8e8f02
> srwxr-xr-x 1 www-data www-data     0 Apr 14 11:56 php.socket-0
> -rw------- 1 www-data www-data 11468 Apr 14 12:14 horde_dns.cache
>
> So, the switch to XCache was at about 10:30 this morning. After that  
> only the file horde_dns.cache was updated. The other horde-related  
> files are "old".
>
> As you said "Install != activate in PHP" I checked this on my  
> phpinfo()-page. On that page I see that XCache is enabled. Therefore  
> I don't understand why the error message is constantly appearing.  
> Can someone help me with this?
>
> Greetings
> Jens

Try raising the error_reporting setting in Horde's configuration to  
E_ALL and see if the xcache extension is logging some error.

-- 
Jan Schneider
The Horde Project
http://www.horde.org/
https://www.facebook.com/hordeproject