Dear All,

Please note that we are facing any freezing issue in zabbix 3.4.4 . Server Specs Centos7/100GB Ram/1TB SSD disk / Mysql innoDB with partition per day/

Number of hosts (enabled/disabled/templates) 2094 1752 / 204 / 138
Number of items (enabled/disabled/not supported) 372260 215143 / 141074 / 16043
Number of triggers (enabled/disabled [problem/ok]) 80292 63887 / 16405 [452 / 63435]
Number of users (online) 46 14
Required server performance, new values per second 3407.71
and we have 2 Passive proxies Handel 500 Hosts .

Please note that zabbix server are freezing since all service are running and im seeing the zabbix_server.log it seems the polling working fine ex 24427:20171226:101241.672 sending configuration data to proxy "Zabbix System proxy" at "194.126.19.42", datalen 1652812
25346:20171226:101242.922 SNMP agent item "ifHCOutUcastPkts[GigabitEthernet0/17]" on host "GDS - Ersel1-SW" failed: first network error, wait for 60 seconds
25301:20171226:101247.779 SNMP agent item "MiniLinkBridgeUcastPktsIn[1/1/9-Jar-Tyr-TYR-JAR-CN]" on host "GDS MiniLink Jarjour3-CN-TYR" failed: first network error, wait for 60 seconds) but the problem is note displaying any triggers and notification . once i restart zabbix service it working fine and displaying triggers and after some time its freezing again and missing all triggers.

what your opinion on this issue and how we can solved the problem.

let me know if you need more information

Best Regards,
Elias