graph widgets on dashboard, getting Incorrect value "-10" for "content_height" field.

[zuf76]

Hi All

My zabbix 4.0.3 has all of a sudden I stopped me adding graph widgets to any dashboards.

The other thing I noticed was the default 'Zabbix server health' dashboard isn't displaying any graph data.

When I open new or existing graph widgets, this error is displayed... 'Incorrect value "-10" for "content_height" field.

Any ideas? I can rebuild my zabbix server but do prefer to fix the problem.

[zuf76]

The error message for graph widget's is resolved. It was caused by one of the my hosts having a misconfigured hostname in the agent.conf (it had zabbix.mydomain.com instead of fogserver.mydomain.com). This fixed the graph widget error.

The problem with zabbix health dashboard. It looks like these widgets don't update the source hostname from 'Zabbix server' if the agent conf and configuration->host section are changed. I had changed mine to be zabbix.mydomain.com in both these locations.

Once I changed this back to 'Zabbix server' all return to normal.

My guess these widgets are hardcoded, so you'd have to modify each widget manually after the changes.

Hope that helps someone.