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Problem report
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Resolution: Unresolved
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Trivial
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None
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6.0.20
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None
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Ubuntu 20.04
In our proxy logs, we regularly see the message: "fping failed: no output". Increasing the log level of the icmp pinger processes to trace level shows:
1635639:20230825:121358.669 In add_pinger_host() addr:''
1635639:20230825:121358.669 End of add_pinger_host()
1635639:20230825:121358.669 zbx_setproctitle() title:'icmp pinger #23 [pinging hosts]'
1635639:20230825:121358.669 In zbx_ping() hosts_count:1
1635639:20230825:121358.669 /tmp/zabbix_proxy_1635639.pinger
1635639:20230825:121358.669
1635639:20230825:121358.669 /usr/bin/fping -C4 -t2500 -i0 2>&1 </tmp/zabbix_proxy_1635639.pinger;
1635639:20230825:121358.671 fping failed: no output
1635639:20230825:121358.671 End of zbx_ping():NOTSUPPORTED
1635639:20230825:121358.671 In process_values()
1635639:20230825:121358.671 host [] fping failed: no output
1635639:20230825:121358.671 In process_value()
1635639:20230825:121358.671 In zbx_preprocess_item_value()
1635639:20230825:121358.671 End of zbx_preprocess_item_value()
1635639:20230825:121358.671 End of process_value()
1635639:20230825:121358.671 In zbx_ipc_socket_write()
1635639:20230825:121358.671 End of zbx_ipc_socket_write():SUCCEED
1635639:20230825:121358.671 End of process_values()
It appears the proxy writes an empty line to the text file, and hence not getting anything back from fping. It's unclear what zabbix was trying to ping in the first place.
fping version 4.2