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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-21767

ZBX_TCP_READ() timed out - zabbix Agent on Centos Linux 7

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Details

    • Incident report
    • Status: Closed
    • Trivial
    • Resolution: Won't fix
    • 6.2.3
    • None
    • Agent (G), Server (S)
    • Development

    Description

      error: [ZBX_TCP_READ() timed out]

      After installing CentOS Linux release 7.9.2009 (Core) with zabbix_agentd (daemon) (Zabbix) 6.2.3 (tested with 6.2.1 and 6.2.2 as well) errors in logs:

       

      1215:20221014:050457.652 using configuration file: /etc/zabbix/zabbix_agentd.conf
        1215:20221014:050457.652 agent #0 started [main process]
        1224:20221014:050457.656 agent #4 started [listener #3]
        1222:20221014:050457.662 agent #2 started [listener #1]
        1225:20221014:050457.664 agent #5 started [active checks #1]
        1223:20221014:050457.667 agent #3 started [listener #2]
        1221:20221014:050457.668 agent #1 started [collector]
        1225:20221014:050500.678 Unable to receive from [172.30.29.245]:10051 [ZBX_TCP_READ() timed out]
        1225:20221014:050500.679 Active check configuration update started to fail

      (detailed logs attached)

      Reproduced with newly build VM CentOS Linux release 7.9.2009 (Core), zabbix-agent version 6.2.3

      Zabbix_agentd.conf = ServerActive=172.30.29.245 (zabbix server)

      Traceroute results from 172.30.29.245 to 173.30.29.40 (VM)

      [[email protected] ~]# traceroute 172.30.29.40
      traceroute to 172.30.29.40 (172.30.29.40), 30 hops max, 60 byte packets
       1  172.30.29.40 (172.30.29.40)  1.164 ms !X  1.126 ms !X  1.098 ms !X

      Traceroute results from 173.30.29.40 (VM) to 172.30.29.245

      [[email protected] ~]# traceroute 172.30.29.245
      traceroute to 172.30.29.245 (172.30.29.245), 30 hops max, 60 byte packets
       1  172.30.29.245 (172.30.29.245)  0.337 ms !X  0.286 ms !X  0.241 ms !X

      No trapper process on the core server is having 'waiting for connections':

      watch -n1 'ps -ef | grep "^zabbix.*trapper #" | grep -E -o "trapper.*"'

      please investigate

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            zabbix.support Zabbix Support Team
            fmeas Francoise Meas
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            Dates

              Created:
              Updated:
              Resolved: