[horde] zend_mm_heap corrupted

[Andrew Morgan]

On Tue, 2 Jun 2009, robert sand wrote:

> This is what I found.  I now have all 5 servers working.
>
> The php5 memcache module does not work.  I did see on the install section in 
> the Horde site pages that the pecl memcache module was needed.  After 
> installing the pecl module all now work.  I did also find that the other 
> three were using local memcache and not one on another server.
>
> robert sand wrote:
>> 
>> I've seen a lot of discussion about this on php.net and some here too but 
>> have not seen a solution for it.
>> 
>> In our case we have 5 horde/imp servers each accessing a single memcache 
>> server with 6GB memory dedicated to memcached.  I have 2 servers that get 
>> these "zend_mm_heap corrupted" messages along with segmentation faults of 
>> apache pids.  Yet when I direct these 2 servers to a memecache on the 
>> localhost it goes away.
>> 
>> Our configuration is:
>> 
>> Debian Lenny:
>>
>>     * Horde: 3.2.2
>>     * Imp: H3 (4.2) (run Imp tests)
>>     * Ingo: H3 (1.2) (run Ingo tests)
>>     * Kronolith: H3 (2.2) (run Kronolith tests)
>>     * Mnemo: H3 (2.2)
>>     * Nag: H3 (2.2)
>>     * Turba: H3 (2.2.1) (run Turba tests)
>>     * PHP Version: 5.2.6-1+lenny3
>> 
>> If there is a solution to this could someone point me to it?  This just 
>> started showing up with the latest "lenny" release of horde.

I also found that something is wrong with Lenny's packaged version of 
php5-memcache.  It appeared to work, but the performance was abysmal.  I 
did the same thing as you:

   aptitude purge php5-memcache
   pecl install memcache

After that, all my performance problems were fixed.

 	Andy