PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate

[mdresden]

I am running zabbix 2.2 on a vm with 8 real cores, 12GB ram currently.

I will be monitoring 3100 devices.

Currently I have mysql also on this box but it will be migrated off soon.

I have access to unlimited hardware resources, memory, etc, and will be scaling this up into a better distributed environment, but for now i am trying to get a proof of concept up at my company to switch to zabbix.

The error I am working to resolve can be reproduces as follows:

1. Login to zabbix frontend
2. select Monitoring tab
3. select latest data
4. select any large group of servers

From there it spins a long time and eventually I get a php error.

the PHP error is usually some variation of:

PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 32 bytes) in /usr/share/zabbix/include/classes/api/CZBXAPI.php on line 323

I have tried increasing the memory limit in php.ini and just making it unlimited.

I have increase ValueCacheSize which I thought may be related (no additional amount here helped)

Currently my server runs with about 2Gigs free of the 12 it has.

Does anyone know more specifically what needs to be adjusted.

Here in the php file snippet that complains:

 316         protected function createRelationMap(array $objects, $baseField, $foreignField, $table = null) {
 317                 $relationMap = new CRelationMap();
 318
 319                 // create the map from a database table
 320                 if ($table) {
 321                         $res = DBselect(API::getApi()->createSelectQuery($table, array(
 322                                 'output' => array($baseField, $foreignField),
 323                                 'filter' => array($baseField => array_keys($objects)),
 324                                 'nodeids' => get_current_nodeid(true)
 325                         )));
 326                         while ($relation = DBfetch($res)) {
 327                                 $relationMap->addRelation($relation[$baseField], $relation[$foreignField]);
 328                         }
 329                 }
 330
 331                 // create a map from the base objects
 332                 else {
 333                         foreach ($objects as $object) {
 334                                 $relationMap->addRelation($object[$baseField], $object[$foreignField]);
 335                         }
 336                 }
 337
 338                 return $relationMap;
 339         }

Here are the setting from my server conf file:

# cat /etc/zabbix/zabbix_server.conf | egrep '^[^#]'
LogFile=/var/log/zabbix/zabbix_server.log
LogFileSize=0
PidFile=/var/run/zabbix/zabbix_server.pid
DBHost=localhost
DBName=zabbix
DBUser=zabbix
DBPassword=<BLAH>
DBSocket=/var/lib/mysql/mysql.sock
StartPollers=750
StartPollersUnreachable=80
StartTrappers=20
StartPingers=10
StartDiscoverers=250
JavaGateway=zabbix.gale.web
JavaGatewayPort=10052
StartJavaPollers=5
SNMPTrapperFile=/var/log/snmptt/snmptt.log
CacheSize=1G
StartDBSyncers=50
HistoryCacheSize=1G
TrendCacheSize=1G
HistoryTextCacheSize=1G
ValueCacheSize=1G
AlertScriptsPath=/usr/lib/zabbix/alertscripts
ExternalScripts=/usr/lib/zabbix/externalscripts
Fping6Location=/usr/sbin/fping6

Here are some screen shots of zabbix graphs

[pjelou]

I had the same problem, editing memory_limit value in php.ini won't work, you have to edit in file /etc/zabbix/apache.conf

php_value memory_limit

2M.
For me 512MB was sufficient.

[mdresden]

Solved

Thanks alot !!! It turns out as you said there are php settings that over ride the php.ini setting in the zabbix vhost conf file

[nelteren]

cannot find apache.conf

I installed zabbix on debian
Currenty I also run zabbix 2.2
Linux version 2.6.32-5-amd64 (Debian 2.6.32-48squeeze6) ([email protected]) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Tue May 13 16:34:35 UTC 2014
MEM

I also get the mem error but cannot find /etc/zabbix/apache.conf and not on an othter location

So I changed :
/etc/apache2/sites-enabled/000-default
and added:

<VirtualHost *:80>
ServerAdmin webmaster@localhost

DocumentRoot /var/www

php_value memory_limit 1024M
php_value post_max_size 128M

<Directory />
Options FollowSymLinks

====================

It worked for me