zabbix_get -s localhost -k agent.ping slow on some servers

[unsupo]

zabbix_get -s localhost -k agent.ping slow on some servers returns with correct value in over 40 seconds

zabbix_agentd -t agent.ping returns correct value in a few milliseconds.

zabbix agent version is 3.0.3.2-1

[DmitryL]

Please post output of following commands from the same host:

time zabbix_get -s 127.0.0.1 -k agent.ping
time zabbix_agentd -t agent.ping

[unsupo]

time zabbix_get -s 127.0.0.1 -k agent.ping

1

real 0m40.015s

user 0m0.008s

sys 0m0.016s



time ./zabbix_agentd -t agent.ping

agent.ping [u|1]

real 0m0.030s

user 0m0.008s

sys 0m0.020s

[kloczek]

Zabbix server/proxy does not connects to the agent on icmp/echo.
You need to check this connection using tcping command.
Second: slow reply may be caused by CPU saturation or other issues on monitored host. Please make sure that something on monitored host side is not causing this issue. This is most likely is the cause as you are able to observe the issue only on some hosts, ad if it the cause this has nothing to do with zabbix agent.