Server configuration:

• OS: Red Hat Enterprise Linux Server release 7.6 (Maipo)

• Zabbix version: 4.2.4

• PHP version: 7.2.19
  • check-pre-requisites-1_3.jpg
  • check-pre-requisites-2_3.jpg
  • check-pre-requisites-3_3.jpg
  • phpinfo.txt

• Zabbix console running on two loadbalanced hosts
  • 1u17_zabbix_v1.10.pdf

• Check that the host/item collect is working properly using classic graph --> OK
  • classic-graph.jpg

• Add graph widget for the same host/item--> KO, no data displayed
  • widget-graph.jpg

• Checked using different browser: chrome, firefox, IE ... same issue on all browsers

Result:

• No data displayed into the graph widget
• No error found in apache logs

Expected:

• Data should appear into the graph widget