[horde] Problem with XCache and Horde

[Michael J Rubinsky]

Quoting Jens Grüntjes <jens.gruentjes at ebira.de>:

> Hello,
>
> since I changed the PHP opcode cache from APC to XCache I'm running  
> into problems with horde. Whenever horde-alarms is executed I  
> receive an error message like:
>
> Cannot write Autoloader cache to backend
>
> Horde's log file then contains the following line:
>
> 2015-04-28T10:50:03+00:00 WARN: HORDE [horde] PHP ERROR:  
> xcache_set(): XCache var cache was not initialized properly. Check  
> php log for actual reason [pid 2603 on line 155 of  
> "/usr/share/php/Horde/Autoloader/Cache/Bootstrap.php"]
>
> I can raise the error if I manually execute horde-alarms as well.
>
> As I wrote in a previous post to the imp-list (subject was: [imp]  
> Cannot write Autoloader cache to backend.), I tried/checked  
> different things to find out what the reason is.
>
> 1) The directory /tmp is writable for the webserver
>
> 2) XCache is activated according to the output of phpinfo() and to  
> the XCache admin page of my server
>
> 3) I tried to use XCache from inside horde, i.e. the PHP console:
>
> $test = "Hello";
> xcache_set("test", $test);
>
> I see the variable test in XCache's admin-view with the value Hello.  
> So it looks as if XCache is working from inside horde.
>
> 4) I tried using xcache from inside a website rather than from  
> horde's console, and that works.
>
> 5) I put a log statement in  
> /usr/share/php/Horde/Autoloader/Cache/Bootstrap.php like this:
>
> public function set($key, $data)
>     {
>         $data = ($this->_mask & self::MSGPACK)
>             ? msgpack_pack($data)
>             : json_encode($data);
>
>         if ($this->_mask & self::LZ4) {
>             $data = @horde_lz4_compress($data);
>         } elseif ($this->_mask & self::LZF) {
>             $data = lzf_compress($data);
>         }
>
>         if ($this->_mask & self::APC) {
>             return apc_store($key, $data);
>         } elseif ($this->_mask & self::XCACHE) {
>             error_log($key, 4);  // <---- Logging here
>             error_log($data, 4); // <---- Logging here
>             return xcache_set($key, $data);
>         }
> ...
> }
>
> When I run horde-alarms from command line the message is triggered.  
> I copied the output into a simple php-script:

My guess is that you have a different php.ini file for PHP CLI than  
for cgi/apache_mod and you haven't configured xcache.var_size properly  
in that file.



-- 
mike
The Horde Project
http://www.horde.org
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