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Problem report
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Resolution: Incomplete
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Trivial
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None
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6.0.21
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None
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Windows Server 2019 Standard
Zabbix Agent 2 6.0.21
After fighting reported network errors on the proxy without resolution I increased the agent log level to 4 and watched the logs of both the proxy and agent. I observed network errors corresponding to the same time frame as agent errors. I observed the errors on the agent were related to querying a drive (D: ) that was not attached. This resulted in a broken line displayed for uptime, which I use as a trigger for down hosts. When I attached the drive in Disk Manager (D: ) the uptime graph returned to a normal solid line, even though proxy network errors continued to be reported.
Steps to reproduce:
- See agent and proxy configs below.
- Attach external USB drive and allow it to be discovered.
- Detach drive.
- Observe logs. Issue presents itself every minute or so.
Result:
Agent log:
$ grep -B3 ZBX.NOTSUPPORTED zabbix-log-nwa-hv.txt
2023/08/23 10:55:56.069769 executed direct exporter task for key 'perf_counter_en["\PhysicalDisk(1 D: )\% Idle Time",60]' 2023/08/23 10:55:56.069769 executing direct exporter task for key 'perf_counter_en["\PhysicalDisk(1 D: )\Disk Writes/sec",60]' 2023/08/23 10:55:56.069769 executed direct exporter task for key 'perf_counter_en["\PhysicalDisk(1 D: )\Disk Writes/sec",60]' 2023/08/23 10:55:56.069769 sending passive check response: ZBX_NOTSUPPORTED: 'No data available.' to '192.168.0.8'
Proxy log:
1246:20230823:105553.823 Zabbix agent item "perf_counter_en["\PhysicalDisk(1 D:)\Current Disk Queue Length",60]" on host "nwa-hv.longviewautotire.com" failed: first network error, wait for 15 seconds 1253:20230823:105608.393 resuming Zabbix agent checks on host "nwa-hv.longviewautotire.com": connection restored
$ grep -v "^#" zabbix_agent2.conf | grep -v ^$
LogFile=C:\Program Files\Zabbix Agent 2\zabbix_agent2.log
DebugLevel=4
Server=192.168.0.8
ServerActive=192.168.0.8
Hostname=nwa-hv.example.com
Timeout=25
Include=C:\Program Files\Zabbix Agent 2\zabbix_agent2.d\
ControlSocket=\\.\pipe\agent.sock
Include=.\zabbix_agent2.d\plugins.d\*.conf
# grep -v "^#" zabbix_proxy.conf | grep -v ^$ ProxyMode=1 Server=1.2.3.4 Hostname=proxy.example.com LogFile=/var/log/zabbix/zabbix_proxy.log LogFileSize=0 PidFile=/var/run/zabbix/zabbix_proxy.pid SocketDir=/var/run/zabbix DBName=zabbix_proxy DBUser=zabbix DBPassword=<secret> StartPollers=10 StartPollersUnreachable=5 SNMPTrapperFile=/var/log/snmptrap/snmptrap.log Timeout=25 ExternalScripts=/usr/lib/zabbix/externalscripts FpingLocation=/usr/bin/fping Fping6Location=/usr/bin/fping6 LogSlowQueries=3000
