[imp] Cannot write Autoloader cache to backend.

[Jens Grüntjes]

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