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Type:
Problem report
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Resolution: Unresolved
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Priority:
Trivial
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None
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Affects Version/s: None
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Component/s: None
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None
Zabbix server 7.0.3 with 1500 discovery rules.
Discovery rules were created in automed way following this pattern: create 20 rules, wait 1 minute, repeat. Every rule covers /28 subnet and runs every 24 hours.
When Zabbix starts executing all these rules internal metrics gathering is affected (effectively stops - see screenshot) 
In logs I see:
1053621:20241021:224026.649 item "Zabbix server:zabbix[process,discovery worker,avg,busy]" became not supported: Timeout while waiting for response 1053618:20241021:224127.306 cannot write to IPC socket: Broken pipe 1053618:20241021:235441.346 cannot write to IPC socket: Broken pipe 1053618:20241022:004022.334 cannot write to IPC socket: Broken pipe 1053618:20241022:015015.698 cannot write to IPC socket: Broken pipe 1053618:20241022:025915.657 cannot write to IPC socket: Broken pipe 1053618:20241022:040853.700 cannot write to IPC socket: Broken pipe 1053618:20241022:051813.078 cannot write to IPC socket: Broken pipe 1053618:20241022:062757.094 cannot write to IPC socket: Broken pipe 1053618:20241022:073610.741 cannot write to IPC socket: Broken pipe 1053618:20241022:084414.796 cannot write to IPC socket: Broken pipe 1053618:20241022:094256.931 cannot write to IPC socket: Broken pipe 1053618:20241022:094256.932 cannot write to IPC socket: Broken pipe 1053621:20241022:094256.958 item "Zabbix server:zabbix[process,discovery worker,avg,busy]" became supported # Here is the processes from above zabbix 1053618 1053587 1 Oct03 ? 07:59:31 /usr/sbin/zabbix_server: discovery manager #1 [processing 0 rules, 0 unsaved checks] zabbix 1053621 1053587 11 Oct03 ? 2-05:12:25 /usr/sbin/zabbix_server: history syncer #1 [processed 1 values, 0 triggers in 0.004099 sec, idle 1 sec]
When Zabbix starts it does not report "insufficient file descriptors", Zabbix server service configured with
LimitNOFILE=65536
I start 30 discoverers
StartDiscoverers=30
Expected:
Internal metrics gathering always works.
