The "Broken Pipe" error is rarely a bug in the code; it is almost always a symptom of a or a timeout . Focus your efforts on the health of the zabbix-server process and its ability to talk to the database. If you'd like to dive deeper, let me know:
This error typically appears during a restart of the Zabbix server/proxy, during a version update, or during sudden spikes in data volume. It indicates a failure in the internal communication line between Zabbix processes. zabbix cannot write to ipc socket broken pipe upd